Sample records for audio machine text-to-speech

  1. Building a Prototype Text to Speech for Sanskrit

    NASA Astrophysics Data System (ADS)

    Mahananda, Baiju; Raju, C. M. S.; Patil, Ramalinga Reddy; Jha, Narayana; Varakhedi, Shrinivasa; Kishore, Prahallad

    This paper describes about the work done in building a prototype text to speech system for Sanskrit. A basic prototype text-to-speech is built using a simplified Sanskrit phone set, and employing a unit selection technique, where prerecorded sub-word units are concatenated to synthesize a sentence. We also discuss the issues involved in building a full-fledged text-to-speech for Sanskrit.

  2. Unsupervised learning for text-to-speech synthesis 

    E-print Network

    Watts, Oliver Samuel

    2013-07-02

    This thesis introduces a general method for incorporating the distributional analysis of textual and linguistic objects into text-to-speech (TTS) conversion systems. Conventional TTS conversion uses intermediate layers ...

  3. A markup language for text-to-speech synthesis. 

    E-print Network

    Sproat, Richard; Taylor, Paul; Tanenblatt, Michael; Isard, Amy

    1997-01-01

    Text-to-speech synthesizers must process text, and therefore require some knowledge of text structure. While many TTS systems allow for user control by means of ad hoc ‘escape sequences’, there remains to date no ...

  4. Text-to-speech synthesis for Welsh and Welsh English. 

    E-print Network

    Williams, Briony

    1995-01-01

    This work represents the first known attempt to develop a text-to-speech synthesiser for Welsh. A list of pseudo-Welsh nonsense words was generated, allowing for certain difficulties particular to Welsh. Diphones were ...

  5. Affective Speech for Social Communication: Implementation Challenges in Text-to-Speech for Short Messages

    Microsoft Academic Search

    A. K. Amin; J. Wang

    2006-01-01

    The flexibility to choose from different modal content presentation will be an important feature in future ubiquitous application. Currently, short messages (e.g. SMS\\/MMS) are only available in visual form. However, in certain situations, users may like to have these messages presented in audio form. We explored the alternative of presenting short messages in affective synthetic text-to-speech form special for social

  6. Issues in Text-to-Speech Conversion for Mandarin

    Microsoft Academic Search

    Chilin Shih; Richard Sproat

    1996-01-01

    Research on text-to-speech (TTS) conversion for Mandarin Chinese is a much younger enterprise than comparable research for English or other European languages. Nonetheless, impressive progress has been made over the last couple of decades, and Mandarin Chinese systems now exist which approach, or in some ways even surpass in quality available systems for English. This article has two goals. The

  7. The Study and Implementation of Text-to-Speech System for Agricultural Information

    NASA Astrophysics Data System (ADS)

    Zheng, Huoguo; Hu, Haiyan; Liu, Shihong; Meng, Hong

    The Broadcast and Television coverage has increased to more than 98% in china. Information services by radio have wide coverage, low cost, easy-to-grass-roots farmers to accept etc. characteristics. In order to play the better role of broadcast information service, as well as aim at the problem of lack of information resource in rural, we R & D the text-to-speech system. The system includes two parts, software and hardware device, both of them can translate text into audio file. The software subsystem was implemented basic on third-part middleware, and the hardware subsystem was realized with microelectronics technology. Results indicate that the hardware is better than software. The system has been applied in huailai city hebei province, which has conversed more than 8000 audio files as programming materials for the local radio station.

  8. Identifying prosodic prominence patterns for English text-to-speech synthesis 

    E-print Network

    Badino, Leonardo

    2010-01-01

    This thesis proposes to improve and enrich the expressiveness of English Text-to-Speech (TTS) synthesis by identifying and generating natural patterns of prosodic prominence. In most state-of-the-art TTS systems the ...

  9. "Look What I Did!": Student Conferences with Text-to-Speech Software

    ERIC Educational Resources Information Center

    Young, Chase; Stover, Katie

    2014-01-01

    The authors describe a strategy that empowers students to edit and revise their own writing. Students input their writing in to text-to-speech software that rereads the text aloud. While listening, students make necessary revisions and edits.

  10. Concatenative Text-to-Speech Synthesis Based on Prototype Waveform Interpolation (A Time Frequency Approach) 

    E-print Network

    Morais, Edmilson; Taylor, Paul; Violaro, Fabio

    This paper presents some preliminary methods to apply the Time- Frequency Interpolation technique - TFI [3] to concatenative text-to-speech synthesis. The TFI technique described here is a pitch-synchronous time-frequency ...

  11. Using prosodic structure to improve pitch range variation in text to speech synthesis. 

    E-print Network

    Clark, Robert A J

    1999-01-01

    The intonation produced by current text-to-speech systems is often either flat or artificial sounding. Pitch range is one of the contributing factors which could be improved by more detailed linguistic knowledge. In ...

  12. WORD AND SYLLABLE MODELS FOR GERMAN TEXT-TO-SPEECH SYNTHESIS

    Microsoft Academic Search

    Bernd Mobius

    1998-01-01

    The correct pronunciation of unknown or novel words is one of the biggest challenges for text-to-speech systems. In this paper we describe the implementation of unknown word analysis as a central component of the text analysis module in the Bell Labs German text-to-speech system. The implementation is based on a model of the morphological structure of words and on the

  13. Orthographic Learning and the Role of Text-to-Speech Software in Dutch Disabled Readers

    ERIC Educational Resources Information Center

    Staels, Eva; Van den Broeck, Wim

    2015-01-01

    In this study, we examined whether orthographic learning can be demonstrated in disabled readers learning to read in a transparent orthography (Dutch). In addition, we tested the effect of the use of text-to-speech software, a new form of direct instruction, on orthographic learning. Both research goals were investigated by replicating…

  14. MULTILINGUAL TEXT-TO-SPEECH SYNTHESIS Alan W Black and Kevin A. Lenzo

    E-print Network

    Black, Alan W

    such as Scots and Irish Gaelic, Basque, etc., Asian languages including Chinese, Thai, Ko- rean, Japanese, manyMULTILINGUAL TEXT-TO-SPEECH SYNTHESIS Alan W Black and Kevin A. Lenzo Language Technologies in a new language. The sec- ond concerns the building of a new voice without record- ing any new acoustic

  15. The Effects of Word Prediction and Text-to-Speech on the Writing Process of Translating

    ERIC Educational Resources Information Center

    Cunningham, Robert

    2013-01-01

    The purpose of this study was to determine the effects of the combination of word prediction and text-to-speech software on the writing process of translating. Participants for this study included 10 elementary and middle school students who had a diagnosis of disorder of written expression. A modified multiple case series was used to collect data…

  16. Objective evaluation of grapheme to phoneme conversion for text-to-speech synthesis in French

    Microsoft Academic Search

    F. Yvon; Philippe Boula De Mareüil; Christophe D'alessandro; Véronique Aubergé; M. Bagein; Gérard Bailly; F. Béchet; S. Foukia; J.-F. Goldman; E. Keller; Douglas D. O'shaughnessy; V. Pagel; F. Sannier; J. Véronis; B. Zellner

    1998-01-01

    This paper reports on a cooperative international evaluation of grapheme-to-phoneme (GP) conversion for text-to-speech synthesis in French. Test methodology and test corpora are described. The results for eight systems are provided and analysed in some detail. The contribution of this paper is twofold: on the one hand, it gives an accurate picture of the state-of-the-art in the domain of GP

  17. On the construction of unit databanks for text-to-speech systems

    Microsoft Academic Search

    Vagner L. Latsch; Sergio L. Netto

    2006-01-01

    This work deals with one stage in the development of a text-to-speech (TTS) system, which demands a great amount of time and effort, and is strongly related to the resulting speech quality: The determination of the speech-unit databank. For that matter, we present a software tool, the so-called Editor, integrating all major steps in the database determination in a single

  18. Adaptation of the AhoTTS Text to Speech System to PDA Platfoms

    Microsoft Academic Search

    Jon Sanchez; Iker Luengo; Eva Navas; Inma Hernaez

    2006-01-01

    This paper presents the work carried on to adapt a Basque language Text-To-Speech (TTS) system into a mobile device of limited resources. The aim is to make possible the use of the AhoTTS conversion system of the UPV\\/EHUs Aholab group, in a Personal Digital Assistant (PDA), and to test the system performance in several aspects, such as sound sample generation

  19. Faking it: Synthetic text-to-speech synthesis for u nder-resourced languages - Experimental design

    Microsoft Academic Search

    Harold Somers

    Speech synthesis or text-to-speech (TTS) systems are currently available for a number of the world's major languages, but for thousands of the world's 'minor' languages no such technology is available. While awaiting the development of such technology, we would like to try the stop-gap solution of using an existing TTS system for a major language (the base language) to 'fake'

  20. An RNN-based prosodic information synthesizer for Mandarin text-to-speech

    Microsoft Academic Search

    Sin-Horng Chen; Shaw-Hwa Hwang; Yih-Ru Wang

    1998-01-01

    A new RNN-based prosodic information synthesizer for Mandarin Chinese text-to-speech (TTS) is proposed in this paper. Its four-layer recurrent neural network (RNN) generates prosodic information such as syllable pitch contours, syllable energy levels, syllable initial and final durations, as well as intersyllable pause durations. The input layer and first hidden layer operate with a word-synchronized clock to represent current-word phonologic

  1. Basic Research and Implementation Decisions for a Text-to-Speech Synthesis System in Romanian

    Microsoft Academic Search

    Dragos Burileanu

    2002-01-01

    Speech synthesis is one of the most language-dependent domains of speech technology. In particular, the natural language processing stage of a text-to-speech (TTS) system contains the largest part of the linguistic knowledge for a given language. In this respect, one can state that building a high-quality TTS system for a new language involves many theoretical and technical challenges. Especially, extensive

  2. Segmental intelligibility of four currently used text-to-speech synthesis methods.

    PubMed

    Venkatagiri, Horabail S

    2003-04-01

    The study investigated the segmental intelligibility of four currently available text-to-speech (TTS) products under 0-dB and 5-dB signal-to-noise ratios. The products were IBM ViaVoice version 5.1, which uses formant coding, Festival version 1.4.2, a diphone-based LPC TTS product, AT&T Next-Gen, a half-phone-based TTS product that uses harmonic-plus-noise method for synthesis, and FlexVoice2, a hybrid TTS product that combines concatenative and formant coding techniques. Overall, concatenative techniques were more intelligible than formant or hybrid techniques, with formant coding slightly better at modeling vowels and concatenative techniques marginally better at synthesizing consonants. No TTS product was better at resisting noise interference than others, although all were more intelligible at 5 dB than at 0-dB SNR. The better TTS products in this study were, on the average, 22% less intelligible and had about 3 times more phoneme errors than human voice under comparable listening conditions. The hybrid TTS technology of FlexVoice had the lowest intelligibility and highest error rates. There were discernible patterns of errors for stops, fricatives, and nasals. Unrestricted TTS output--e-mail messages, news reports, and so on--under high noise conditions prevalent in automobiles, airports, etc. will likely challenge the listeners. PMID:12703720

  3. Event detection in field sports video using audio-visual features and a support vector Machine

    Microsoft Academic Search

    David A. Sadlier; Noel E. O'connor

    2005-01-01

    In this paper, we propose a novel audio-visual feature-based framework for event detection in broadcast video of multiple different field sports. Features indicating significant events are selected and robust detectors built. These features are rooted in characteristics common to all genres of field sports. The evidence gathered by the feature detectors is combined by means of a support vector machine,

  4. Effects of Text-to-Speech Software on the Reading Rate and Comprehension Skills of High School Students with Specific Learning Disabilities

    ERIC Educational Resources Information Center

    Moorman, Amanda; Boon, Richard T.; Keller-Bell, Yolanda; Stagliano, Christina; Jeffs, Tara

    2010-01-01

    The purpose of this study was to examine the effects of a text-to-speech software program known as "Read Please" on the reading rate and reading comprehension accuracy of two high school students with specific learning disabilities (SLD) in reading. A single-subject A-B-A-B "withdrawal" research design (Alberto & Troutman, 2009) was used to…

  5. Including Pitch Accent Optionality in Unit Selection Text-to-Speech Synthesis Leonardo Badino, Robert A.J. Clark, Volker Strom

    E-print Network

    Edinburgh, University of

    Including Pitch Accent Optionality in Unit Selection Text-to-Speech Synthesis Leonardo Badino, UK l.badino@sms.ed.ac.uk Abstract A significant variability in pitch accent placement is found when, pitch accents 1. Introduction This paper describes a novel approach to model prosodic promi- nence

  6. Using TTS Voices to Develop Audio Materials for Listening Comprehension: A Digital Approach

    ERIC Educational Resources Information Center

    Sha, Guoquan

    2010-01-01

    This paper reports a series of experiments with text-to-speech (TTS) voices. These experiments have been conducted to develop audio materials for listening comprehension as an alternative technology to traditionally used audio equipment like the compact cassette. The new generation of TTS voices based on unit selection synthesis provides…

  7. Pontine Nucleus audio stimuli detection & modeling for brain machine interface rehabilitation of conditional learning

    Microsoft Academic Search

    Hanan Shteingart; Aryeh Taub; Hagit Messer

    2009-01-01

    In order to establish a brain-machine interface (BMI) system that rehabilitates damaged cerebellum function of discrete motor learning, the detection of conditional and unconditional stimuli (CS and US) onset times based on electro-physiology recordings analysis is necessary. These signals are relayed through brainstem areas called Pontine Nucleus (PN) and the Inferior Olive (IO) respectively. In this paper we focus on

  8. A Mandarin text-to-speech system

    Microsoft Academic Search

    Shaw-Hwa Hwang; Sin-Horng Chen; Yih-Ru Wang

    1996-01-01

    In this paper, the implementation of a high-performance Mandarin TTS system is presented. The system is composed of four main parts: text analysis (TA), prosodic information generation (PIG), a waveform table of 411 base-syllables (WT), and PSOLA-based waveform synthesis (PSOLA). In TA, statistical model based method is first employed to automatically tag the input text to obtain the word sequence

  9. Audio 2008: Audio Fixation

    ERIC Educational Resources Information Center

    Kaye, Alan L.

    2008-01-01

    Take a look around the bus or subway and see just how many people are bumping along to an iPod or an MP3 player. What they are listening to is their secret, but the many signature earbuds in sight should give one a real sense of just how pervasive digital audio has become. This article describes how that popularity is mirrored in library audio

  10. Audio Mining

    NSDL National Science Digital Library

    Leske, Cavin.

    2002-01-01

    Occasionally referred to as audio indexing, audio mining is a computerized task involving the processing of an audio file, extracting the dialog and creating a textual transcript, and searching the transcript for certain words or phrases. Considering the amount of audio content on the Internet and other sources, it is clear that audio mining is a growing technology.To get an idea of what audio mining is and how it can be used, people can read this article from the Cutter Consortium (1). It lists six broad areas that can benefit from using the technology and briefly discusses each one. A more detailed introduction is offered on the Leavitt Communications Web site (2). This article delves into how audio mining works by giving a basic technical understanding of the process. A new method of searching an audio file, dubbed the "phonetic search engine," is compared to traditional methods in this white paper (3). A publication from the Compaq Cambridge Research Laboratory (4) discusses ways of collecting and analyzing information from an audio file. It also mentions SpeechBot, a Web-based tool for multimedia retrieval. Several papers can be downloaded from the home page of a research project studying the National Gallery of the Spoken Word (5). The repository is comprised of massive historical audio content, and the team at the University of Colorado is investigating phrase recognition to index the data. Have you ever had a tune stuck in your head, but not known the name of the artist or song title? The Musical Audio-Mining project (6) is working on ways to search for information about a song simply by humming part of it. Audio mining can also be used in the War on Terrorism, as is described in this article of Federal Computer Week (7). Massive amounts of recorded phone conversations are intercepted by the government each day, and audio mining would be an efficient way to sort through irrelevant material and catch suspicious activity. The World Wide Web Consortium released this draft of the Voice Extensible Markup Language (8), which could have applications for the audio mining community.

  11. 2005 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics October 16-19, 2005, New Paltz, NY LEARNING AUDITORY MODELS OF MACHINE VOICES

    E-print Network

    Ellis, Dan

    to traditional therapy akin to art therapy and music therapy, utilizes the sounds of machines as relational@ee.columbia.edu ABSTRACT Vocal imitation is often found useful in Machine Therapy ses- sions as it creates an emphatic by our work in Machine Therapy in which hu- mans try to vocally imitate machines, but this task also

  12. Video salient event classification using audio features

    NASA Astrophysics Data System (ADS)

    Corchs, Silvia; Ciocca, Gianluigi; Fiori, Massimiliano; Gasparini, Francesca

    2014-03-01

    The aim of this work is to detect the events in video sequences that are salient with respect to the audio signal. In particular, we focus on the audio analysis of a video, with the goal of finding which are the significant features to detect audio-salient events. In our work we have extracted the audio tracks from videos of different sport events. For each video, we have manually labeled the salient audio-events using the binary markings. On each frame, features in both time and frequency domains have been considered. These features have been used to train different classifiers: Classification and Regression Trees, Support Vector Machine, and k-Nearest Neighbor. The classification performances are reported in terms of confusion matrices.

  13. RECENT ADVANCES IN MULTILINGUAL TEXT-TO-SPEECH SYNTHESIS

    Microsoft Academic Search

    Bernd M; Juergen Schroeter; Jan van Santen; Richard Sproat; Joseph Olive

    1996-01-01

    this paper we will discuss recent advances in multilingualtext-to-speech (TTS) synthesis research atAT&T Bell Laboratories. The TTS system developedat AT&T Bell Laboratories generates syntheticspeech by concatenating segments of natural speech.The architecture of the system is designed as a modularpipeline where each module handles one particularstep in the process of converting text into speech. Besidesconceptual and computational advantages, themodular structure has

  14. MODELING SEGMENTAL DURATION IN GERMAN TEXT-TO-SPEECH SYNTHESIS

    E-print Network

    Möbius, Bernd

    by successively applied rules. Mod- els of this type have been developed for several languages including American is that the feature vector be computable from text. The prevalent type of duration model is a sequential rule system. The solution proposed by van Santen [19, 20, 23] is the applica- tion of a broad class of arithmetic models,

  15. BIBLIOGRAPHY Text-to-speech in Vocabulary Acquisition and Student

    E-print Network

    . Cambridge, UK: Cambridge University Press. Collins-Thompson, K. & Callan, J. (2004). A language modeling-119. Heilman, M., Collins-Thompson, K., Callan, J., and Eskenazi, M. (2007). "Combining Lexical and Grammatical Language Technology Conference. Rochester, NY. Heilman, M., Collins-Thompson, K., Callan, J., & Eskenazi, M

  16. Utilizing Text-to-Speech to Assist Bilingual Teaching

    Microsoft Academic Search

    Guangcai Yin; Jianzhong Luo; Xu Wang; Bin Yuan

    2010-01-01

    In the face of world-wide competition and cooperation, specialty English becomes professional's hindrance in non-English speaking country. Bilingual teaching, suggested by Ministry of education of China, requires instructors to combine English and mother tongue as teaching languages in professional teaching. The deficiency of competent instructors and available teaching resources hampers the implementation of bilingual teaching in Chinese higher education institutions.

  17. Audio Restoration

    NASA Astrophysics Data System (ADS)

    Esquef, Paulo A. A.

    The first reproducible recording of human voice was made in 1877 on a tinfoil cylinder phonograph devised by Thomas A. Edison. Since then, much effort has been expended to find better ways to record and reproduce sounds. By the mid-1920s, the first electrical recordings appeared and gradually took over purely acoustic recordings. The development of electronic computers, in conjunction with the ability to record data onto magnetic or optical media, culminated in the standardization of compact disc format in 1980. Nowadays, digital technology is applied to several audio applications, not only to improve the quality of modern and old recording/reproduction techniques, but also to trade off sound quality for less storage space and less taxing transmission capacity requirements.

  18. Training audio events detectors with a sound effects corpus

    Microsoft Academic Search

    Isabel Trancoso; José Portelo; Miguel Bugalho; Joăo Paulo Neto; António Joaquim Serralheiro

    2008-01-01

    This paper describes the work done in the framework of the VIDIVIDEO European project in terms of audio event detec- tion. Our first experiments concerned the detection of non- voice sounds, such as birds, machines, traffic, water and steps. Given the unavailability of a corpus labelled in terms of audio events, we used a relatively small sound effect corpus for

  19. Audio-visual affective expression recognition

    NASA Astrophysics Data System (ADS)

    Huang, Thomas S.; Zeng, Zhihong

    2007-11-01

    Automatic affective expression recognition has attracted more and more attention of researchers from different disciplines, which will significantly contribute to a new paradigm for human computer interaction (affect-sensitive interfaces, socially intelligent environments) and advance the research in the affect-related fields including psychology, psychiatry, and education. Multimodal information integration is a process that enables human to assess affective states robustly and flexibly. In order to understand the richness and subtleness of human emotion behavior, the computer should be able to integrate information from multiple sensors. We introduce in this paper our efforts toward machine understanding of audio-visual affective behavior, based on both deliberate and spontaneous displays. Some promising methods are presented to integrate information from both audio and visual modalities. Our experiments show the advantage of audio-visual fusion in affective expression recognition over audio-only or visual-only approaches.

  20. Incongruence Detection in Audio-Visual Processing

    E-print Network

    classifier that evaluates the conjunction of direct classifiers for #12;2 M. Havlena, J. Heller, H. Kayser, JIncongruence Detection in Audio-Visual Processing Michal Havlena1 , Jan Heller1 , Hendrik Kayser2 , J¨org-Hendrik Bach2 , J¨orn Anem¨uller2 , and Tom´as Pajdla1 1 Center for Machine Perception

  1. Sleuth: An Audio Experience

    Microsoft Academic Search

    Thomas M. Drewes; Elizabeth D. Mynatt; Maribeth Gandy

    2000-01-01

    We outline the design, prototyping, and evaluation of an immersive audio game, Sleuth: An Audio Experience. We examine related applications based on wearable computing and augmented reality technologies, and discuss the game audio design and user interaction issues. The game environment was prototyped using VRML 2.0 and Java.

  2. Streaming Audio Recorder

    NSDL National Science Digital Library

    2012-11-02

    The Streaming Audio Recorder application allows users to record any type of streaming audio via their computers' speakers or microphone. It's a simple way to record audio from sites such as Grooveshark, YouTube, BBC, and others. The program is compatible with computers running Windows 2000 and newer.

  3. AudioNet

    NSDL National Science Digital Library

    For Internauts with RealAudio 1.0 capability (a 14.4 modem) try AudioNet, the "Broadcast Network of the Internet." AudioNet offers live broadcasts of over ten different talk radio stations, including WOR--New York, WTEM--Washington D.C., and XTRA--San Diego. It also offers several music radio stations, a selection of audio books, and numerous live (and recent) sporting events such as NIT and NCAA Men's and Women's basketball games and college baseball games. http://www.audionet.com/ Free RealAudio 1.0 and 2.0 players can be downloaded from the above sites. RealAudio 2.0 players will play RealAudio 1.0 sites, but 1.0 players will not play 2.0 sites. For more information on this and other plug-ins, visit the Scout Toolkit: webtools/plugins.html

  4. Topic in Depth - Audio Mining

    NSDL National Science Digital Library

    Occasionally referred to as audio indexing, audio mining is a computerized task involving the processing of an audio file, extracting the dialog and creating a textual transcript, and searching the transcript for certain words or phrases. Considering the amount of audio content on the Internet and other sources, it is clear that audio mining is a growing technology of growing importance.

  5. Unsupervised Audio Scene Analysis

    Microsoft Academic Search

    Chris Stauffer; Eric Grimson; L. Grimson

    little attention is being paid to general audio and long-term modeling of audio in general. Even an ASR system which could give a complete transcription of the words heard in an environment would lack vital information. E. g., who was talking, when they were talking, what was the tone of the conversation, did someone slam the door, did someone use

  6. Audio Engineers: Sound Weavers

    NSDL National Science Digital Library

    Integrated Teaching and Learning Program,

    Students are introduced to audio engineers, discovering the type of environment in which they work and exactly what they do on a day-to-day basis. Students come to realize that audio engineers help produce their favorite music and movies.

  7. Modem/Audio IntegrationModem/Audio Integration Concurrent Audio AndConcurrent Audio And

    E-print Network

    Maher, Robert C.

    of features #12;Performance ImpactPerformance Impact (Ref: PC 98 section 17)(Ref: PC 98 section 17) uu Game audioGame audio uu 24 voice Synthesizer at 22 kHz: 12 MHz24 voice Synthesizer at 22 kHz: 12 MHz uu 8Total for concurrent operation: 90 MhzMhz,, 30% of a minimum PC 99 PC30% of a minimum PC 99 PC #12

  8. COMPARISON OF DIFFERENT STRATEGIES FOR A SVM-BASED AUDIO SEGMENTATION

    E-print Network

    Richard, Gaël

    COMPARISON OF DIFFERENT STRATEGIES FOR A SVM-BASED AUDIO SEGMENTATION Mathieu Ramona , Ga to the results gathered by the French ESTER evaluation campaign. We also show the relevance of the SVM with very found on very diverse sets of audio features [13] but nevertheless, Support Vector Machines (SVM) remain

  9. Audio issues in MIR evaluation vOverview of audio formats

    E-print Network

    Reiss, Josh

    Audio issues in MIR evaluation vOverview of audio formats vPreferred presentation of audio files in an MIR testbed vA set of simple recommendations Audio Formats I 1. Apple Ă  AIFF (Audio Interchange File

  10. Acoustic chase : designing an interactive audio environment to stimulate human body movement

    E-print Network

    Schiessl, Simon Karl Josef, 1972-

    2004-01-01

    An immersive audio environment was created that explores how humans react to commands imposed by a machine generating its acoustic stimuli on the basis of tracked body movement. In this environment, different states of ...

  11. The Audio Adventurer: Design of a Portable Audio Adventure Game

    Microsoft Academic Search

    Philip Mendels; Joep W. Frens

    2008-01-01

    In this paper we describe the design of a portable device for playing audio adventure games. This device enables the player\\u000a to explore an audio world, interact with it, and solve challenges while a narrative evolves. To avoid the difficulties that\\u000a can arise when freely navigating open spaces in audio-only worlds, we structured our audio world as a network of

  12. Audio-visual imposture

    NASA Astrophysics Data System (ADS)

    Karam, Walid; Mokbel, Chafic; Greige, Hanna; Chollet, Gerard

    2006-05-01

    A GMM based audio visual speaker verification system is described and an Active Appearance Model with a linear speaker transformation system is used to evaluate the robustness of the verification. An Active Appearance Model (AAM) is used to automatically locate and track a speaker's face in a video recording. A Gaussian Mixture Model (GMM) based classifier (BECARS) is used for face verification. GMM training and testing is accomplished on DCT based extracted features of the detected faces. On the audio side, speech features are extracted and used for speaker verification with the GMM based classifier. Fusion of both audio and video modalities for audio visual speaker verification is compared with face verification and speaker verification systems. To improve the robustness of the multimodal biometric identity verification system, an audio visual imposture system is envisioned. It consists of an automatic voice transformation technique that an impostor may use to assume the identity of an authorized client. Features of the transformed voice are then combined with the corresponding appearance features and fed into the GMM based system BECARS for training. An attempt is made to increase the acceptance rate of the impostor and to analyzing the robustness of the verification system. Experiments are being conducted on the BANCA database, with a prospect of experimenting on the newly developed PDAtabase developed within the scope of the SecurePhone project.

  13. Advances in audio source seperation and multisource audio content retrieval

    E-print Network

    Paris-Sud XI, Université de

    Advances in audio source seperation and multisource audio content retrieval Emmanuel Vincent INRIA the audio signal of each source from the observed mixture, · classification of the separated sources, e-valued STFT coefficients of the multichannel mixture signal in time frame n and frequency bin f is given

  14. SVM-based audio classification for instructional video analysis

    Microsoft Academic Search

    Ying Li; Chitra Dorai

    2004-01-01

    Automatic content analysis and annotation for efficient search and browsing of topics in instructional videos are current challenges in the management of e-learning content repositories. This paper presents our current work on classifying the soundtrack of instructional videos into seven distinct audio classes using the support vector machine (SVM) technology. The classification results are then used to partition a video

  15. Evolving GA Classifiler for Audio Steganalysis based on Audio Quality Metrics

    Microsoft Academic Search

    S. Geetha; S. S. Sivatha Sindhu; S. Gobi; A. Kannan

    2006-01-01

    Differentiating anomalous audio document (Stego audio) from pure audio document (cover audio) is difficult and tedious. Steganalytic techniques strive to detect whether an audio contains a hidden message or not. This paper presents a genetic algorithm (GA) based approach to audio steganalysis, and the software implementation of the approach. The basic idea is that, the various audio quality metrics calculated

  16. Real World Audio

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Crystal River Engineering was originally featured in Spinoff 1992 with the Convolvotron, a high speed digital audio processing system that delivers three-dimensional sound over headphones. The Convolvotron was developed for Ames' research on virtual acoustic displays. Crystal River is a now a subsidiary of Aureal Semiconductor, Inc. and they together develop and market the technology, which is a 3-D (three dimensional) audio technology known commercially today as Aureal 3D (A-3D). The technology has been incorporated into video games, surround sound systems, and sound cards.

  17. Audio Engineering Society Convention Paper

    E-print Network

    Maher, Robert C.

    long-term audio recordings for specific sound sources. It is increasingly common that audio recordings are demonstrated for identifying anthropogenic sounds within a natural soundscape recording. 1. INTRODUCTION Audio of these sounds becomes exponentially greater as the recording length increases. While analysis software

  18. Efficient audio signal processing for embedded systems

    NASA Astrophysics Data System (ADS)

    Chiu, Leung Kin

    As mobile platforms continue to pack on more computational power, electronics manufacturers start to differentiate their products by enhancing the audio features. However, consumers also demand smaller devices that could operate for longer time, hence imposing design constraints. In this research, we investigate two design strategies that would allow us to efficiently process audio signals on embedded systems such as mobile phones and portable electronics. In the first strategy, we exploit properties of the human auditory system to process audio signals. We designed a sound enhancement algorithm to make piezoelectric loudspeakers sound ”richer" and "fuller." Piezoelectric speakers have a small form factor but exhibit poor response in the low-frequency region. In the algorithm, we combine psychoacoustic bass extension and dynamic range compression to improve the perceived bass coming out from the tiny speakers. We also developed an audio energy reduction algorithm for loudspeaker power management. The perceptually transparent algorithm extends the battery life of mobile devices and prevents thermal damage in speakers. This method is similar to audio compression algorithms, which encode audio signals in such a ways that the compression artifacts are not easily perceivable. Instead of reducing the storage space, however, we suppress the audio contents that are below the hearing threshold, therefore reducing the signal energy. In the second strategy, we use low-power analog circuits to process the signal before digitizing it. We designed an analog front-end for sound detection and implemented it on a field programmable analog array (FPAA). The system is an example of an analog-to-information converter. The sound classifier front-end can be used in a wide range of applications because programmable floating-gate transistors are employed to store classifier weights. Moreover, we incorporated a feature selection algorithm to simplify the analog front-end. A machine learning algorithm AdaBoost is used to select the most relevant features for a particular sound detection application. In this classifier architecture, we combine simple "base" analog classifiers to form a strong one. We also designed the circuits to implement the AdaBoost-based analog classifier.

  19. Women's Audio Mission

    NSDL National Science Digital Library

    Women\\'s Audio Mission

    Get the inside scoop on the recording industry. The Women's Audio Mission is dedicated to helping women and girls in the field. Not only can you learn more about the industry on these pages, you can see the way woman have made their mark in it.

  20. Machine Vision

    NSDL National Science Digital Library

    Leske, Cavin.

    An overview of a generic image-based machine vision system is provided on this Web site (1). The tutorial describes the main components of such a system, how its accuracy is measured, and what scientific and industrial applications benefit from machine vision. A more technical perspective of machine vision technology is given in an online publication of the Automated Imaging Association (2). Monthly feature articles discuss breaking issues related to machine vision, and several technical papers can be downloaded, which are sorted into categories such as three dimensional imaging and nanotechnology. Researchers from the MIT's Artificial Intelligence Laboratory (3) are investigating how to enable a computer to interpret visual and audio signals from its human user. By using machine perception systems to track the user's gaze, for example, the computer could ascertain the focus of the user's attention, thereby facilitating interaction between the human and the computer. The project's homepage includes numerous research papers, as well as video demonstrations of some of its systems. Machine vision is also finding its way into vehicles. A March 2003 news article (4) highlights a field test in Michigan of a collision avoidance system that uses, among other things, machine vision to warn drivers that they are approaching a slower or stopped object too quickly. The 3D Computer Vision Group at Carnegie Mellon University (5) is involved in several projects, including three dimensional object recognition and humanoid robot vision. Many of the group's recent publications are available for download. NASA's Mars Exploration Rovers, the second of which was launched in July 2003, have vision systems that will let them safely navigate rough terrain. These systems are described in this conference paper (6), including specifics of the stereo vision algorithm and insights into future missions. A new implementation of machine vision comes from a former researcher from Cambridge University. His shape recognition system, which is detailed in this news article (7), is reportedly much more related to human visual processes than existing techniques. For additional developments related to this evolving technology, Machine Vision News (8) has information about worldwide research and new applications of machine vision systems.

  1. A ROBUST AUDIO FINGERPRINT'S BASED IDENTIFICATION METHOD An audio fingerprint is a small digest of an audio file

    E-print Network

    Brun, Chez Luc

    A ROBUST AUDIO FINGERPRINT'S BASED IDENTIFICATION METHOD ABSTRACT An audio fingerprint is a small digest of an audio file computed from its main perceptual properties. Like human fingerprints, audio fingerprints allow to identify an audio file among a set of candidates but does not allow to re­ trieve any

  2. Audio?visual aids

    Microsoft Academic Search

    Paul A. Carmack; Vernon E. Rank; R. Stanley Rutherford; Hayden K. Carruth

    1957-01-01

    FilmsSTATE LEGISLATURE. Academy Films, 1948. Sound. 23 minutes. Sale: Black and white, $100.00; color, $180.00.THE CONGRESS. McGraw?Hill Book Company, Inc., 1949. Sound. Black and white. 10 minutes. Sale: $40.00.PARLIAMENTARY PROCEDURE. National Film Board of Canada, 1955. Sound. Black and white. 22 minutes. Sale: $80,000. Rental: $5:00.FilmstripPARLIAMENTARY RULES OF ORDER. University of Michigan Audio?Visual Center, 1954? 59 frames (with captions). Sale:

  3. Audio?visual aids

    Microsoft Academic Search

    Robertson Strawn; Ruth Hankowsky; Ronad J. Koperski; Mary Louise Gehring; Dora Heintz; Ruby Cloys Krider; Jimmie D. Trent

    1967-01-01

    AUDIO?VISUAL MATERIALS IN TEACHING, 16 mm. 13 1\\/2 minutes. Sound. Color, $150.00, Black and White, $75.00; and NEW DIMENSIONS THROUGH TEACHING FILMS, 16 mm. 27 minutes. Sound. Color, $180.00. Available through Coronet Instructional Films, Coronet Building, Chicago, Illinois 60601.ART: WHAT IS IT: WHY IS IT?, No. 47561. 16 mm. go minutes. Sound. Color. Cost $360. Available through Encyclopaedia Britannica Films,

  4. 50 CFR 27.72 - Audio equipment.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Audio equipment. 27.72 Section 27...Light and Sound Equipment § 27.72 Audio equipment. The operation or use of audio devices including radios, recording and playback devices,...

  5. 50 CFR 27.72 - Audio equipment.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Audio equipment. 27.72 Section 27...Light and Sound Equipment § 27.72 Audio equipment. The operation or use of audio devices including radios, recording and playback devices,...

  6. Audio Engineering Society Convention Paper

    E-print Network

    Reiss, Josh

    that are simultaneously active and multiple microphones set to capture the sound of each source. The inter- action between. Kokkinis1 , Joshua Reiss2 , and John Mourjopoulos1 1 Audio and Acoustic Technology Group, Department is active (solo intervals) for multiple microphone, multiple source settings commonly encountered in audio

  7. Designing Audio-Augmented Environments

    Microsoft Academic Search

    Andreas Zimmermann; Lucia Terrenghi

    2004-01-01

    The paper deals with the design of an intelligent user interface aug- menting the user experience in a museum domain, by providing an immersive audio environment. We highlight the potential of augmenting the visual real environment in a personalized way, thanks to context modeling techniques. The LISTEN project, a system for an immersive audio augmented environment ap- plied in the

  8. Audio Engineering Society Convention Paper

    E-print Network

    Reiss, Josh

    and recorded audio mixing where recording a single sound source with more than one signal path is required, while simultaneously using a microphone to record the amplifier. -Using a parallel digital sound effect A method for reducing comb-filtering effects due to delay time differences between audio signals in a sound

  9. The Lowdown on Audio Downloads

    ERIC Educational Resources Information Center

    Farrell, Beth

    2010-01-01

    First offered to public libraries in 2004, downloadable audiobooks have grown by leaps and bounds. According to the Audio Publishers Association, their sales today account for 21% of the spoken-word audio market. It hasn't been easy, however. WMA. DRM. MP3. AAC. File extensions small on letters but very big on consequences for librarians,…

  10. A Tutorial on MPEG\\/Audio Compression

    Microsoft Academic Search

    Davis Pan

    1995-01-01

    ABSTRACT This tutorial covers the theory behind MPEG\\/audio compression This algorithm was developed by the Motion Picture Experts Group (MPEG), as an International Organization for Standardization (ISO) standard for the high fidelity compression of digital audio The MPEG\\/audio compression standard is one part of a multiple part standard that addresses the compression of video - 2), the compression of audio

  11. Metrological digital audio reconstruction

    DOEpatents

    Fadeyev; Vitaliy (Berkeley, CA), Haber; Carl (Berkeley, CA)

    2004-02-19

    Audio information stored in the undulations of grooves in a medium such as a phonograph record may be reconstructed, with little or no contact, by measuring the groove shape using precision metrology methods coupled with digital image processing and numerical analysis. The effects of damage, wear, and contamination may be compensated, in many cases, through image processing and analysis methods. The speed and data handling capacity of available computing hardware make this approach practical. Two examples used a general purpose optical metrology system to study a 50 year old 78 r.p.m. phonograph record and a commercial confocal scanning probe to study a 1920's celluloid Edison cylinder. Comparisons are presented with stylus playback of the samples and with a digitally re-mastered version of an original magnetic recording. There is also a more extensive implementation of this approach, with dedicated hardware and software.

  12. UNICEF Video/Audio

    NSDL National Science Digital Library

    UNICEF is known throughout the world for their focus on the health, education, equality and protection of children. They produce a number of helpful research reports and policy briefs, and as visitors to this site will find out, a good deal of audio and visual material in the form of podcasts, video news reports, and radio programs. Visitors to the UNICEF Radio area will find a wide range of radio reports on topics such as Nigeria's efforts to contain outbreaks of avian influenza and the effects of floods in Mozambique on children. Visitors interested in podcasts will be impressed with the offerings here, as they include over one hundred total archived programs, and visitors can also sign up to receive each new addition to this collection.

  13. VOWEL DYNAMICS IN A TEXT-TO-SPEECH SYSTEM -SOME CONSIDERATIONS.

    E-print Network

    Carlson, Rolf

    * Department of Speech Communication and Music Acoustics KTH, Stockholm, Sweden *Names in alphabetic order that the variability expressed as standard deviation was reduced by 38% on the training material and 24% on the test, synthesis, reduction, vowels 1. INTRODUCTION In this study we focus on the dynamics of segments in reduced

  14. Letter-to-Phoneme Conversion for a German Text-to-Speech System

    E-print Network

    Reyle, Uwe

    and the benefit of such a morphological preprocess- ing component is evaluated with respect to the grapheme.V. Villigst throughout my studies. Last and least, I would like to thank Lenchen for the chocolate. iv #12

  15. Text-To-Speech for Languages without an Orthography Sukhada Palkar Alan W Black Alok Parlikar

    E-print Network

    Black, Alan W

    processing should offer the opportunity to communicate in all languages, and is per- haps even more valuable the following: Given a speech corpus in such a language, we automatically derive a writing system appropriate from a closely related language. We use Automatic Speech Recognition technology to develop this writing

  16. The SVOX Text-to-Speech System Beat Pfister, September 1995

    E-print Network

    processing in- cludes the morphological and syntactic levels only.1 In order to achieve a system concept knowledge only, in partic- ular on syntactic and morphological language knowledge. Although, from that is well adapted to the particularities of each processing level, and thus can be con- 1 Most of the TTS

  17. A Comparative Study of ID3 and Backpropagation for English Text-to-Speech Mapping

    Microsoft Academic Search

    Thomas G. Dietterich; Hermann Hild; Ghulum Bakiri

    1990-01-01

    The performance of the error backpropagation(BP) and ID3 learning algorithms wascompared on the task of mapping Englishtext to phonemes and stresses. Under the distributedoutput code developed by Sejnowskiand Rosenberg, it is shown that BP consistentlyout-performs ID3 on this task by severalpercentage points. Three hypotheses explainingthis difference were explored: (a)ID3 is overfitting the training data, (b) BPis able to share hidden

  18. Text to Speech: A 4-H Model of Accessibility and Inclusion

    ERIC Educational Resources Information Center

    Green, Jeremy W.

    2012-01-01

    4-H project manuals play an integral part in a youth's ability to achieve mastery in a specific project area. For youth who struggle with reading, written 4-H materials prove inadequate in addressing the needs of the learner. This article proposes a new delivery method of 4-H educational material designed to create a more inclusive and…

  19. Including Pitch Accent Optionality in Unit Selection Text-to-Speech Synthesis 

    E-print Network

    Badino, Leonardo; Robert A J, Clark; Strom, Volker

    2008-01-01

    A significant variability in pitch accent placement is found when comparing the patterns of prosodic prominence realized by different English speakers reading the same sentences. In this paper we describe a simple approach to incorporate...

  20. Bayesian modelling of vowel segment duration for text-to-speech synthesis using distinctive features 

    E-print Network

    Goubanova, Olga V

    2003-01-01

    We report the results of applying the Bayesian Belief Network (BN) approach to predicting vowel duration. A Bayesian inference of the vowel duration is performed on a hybrid Bayesian network consisting of discrete and ...

  1. The Audio-Tutorial System

    ERIC Educational Resources Information Center

    Postlethwait, S. N.

    1970-01-01

    Describes the audio-tutorial program in Botany at Purdue University. Advantages include adaptability to individual stduent needs, integration of laboratory activities and information giving, aid flexibility in use of media and means of presentation. (EB)

  2. Plasmon-Assisted Audio Recording

    E-print Network

    Chen, Hao

    We present the first demonstration of the recording of optically encoded audio onto a plasmonic nanostructure. Analogous to the ‘‘optical sound’’ approach used in the early twentieth century to store sound on photographic ...

  3. A centralized audio presentation manager

    SciTech Connect

    Papp, A.L. III; Blattner, M.M.

    1994-05-16

    The centralized audio presentation manager addresses the problems which occur when multiple programs running simultaneously attempt to use the audio output of a computer system. Time dependence of sound means that certain auditory messages must be scheduled simultaneously, which can lead to perceptual problems due to psychoacoustic phenomena. Furthermore, the combination of speech and nonspeech audio is examined; each presents its own problems of perceptibility in an acoustic environment composed of multiple auditory streams. The centralized audio presentation manager receives abstract parameterized message requests from the currently running programs, and attempts to create and present a sonic representation in the most perceptible manner through the use of a theoretically and empirically designed rule set.

  4. Audio Engineering Society Convention Paper

    E-print Network

    Joseph Fourier Grenoble-I, Université

    on the join use of two XML languages, OpenStreetMap for maps and A2ML for Interactive 3D Audio. A2ML being is similar to what is done for the web of documents with HTML and CSS style sheets. 1. INTRODUCTION 1.1. ARA designed an XML language (A2ML) for interactive audio on mobiles, to follow the trend in powerful mobile

  5. Audio, Video and Audio-Visual Signatures for Short Video Clip Detection: Experiments on Trecvid2003

    E-print Network

    Paris-Sud XI, Université de

    Audio, Video and Audio-Visual Signatures for Short Video Clip Detection: Experiments on Trecvid2003.Senechal,Denis.Pellerin}@lis.inpg.fr, Laurent.Besacier@imag.fr ABSTRACT In this paper, we present the association of audio and video signatures for short video clip detection. First, we present an audio signature based on the spectral flatness measure

  6. 50 CFR 27.72 - Audio equipment.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...27.72 Audio equipment. The operation or use of audio devices including radios, recording and playback devices, loudspeakers, television sets, public address systems and musical instruments so as to cause unreasonable disturbance to others in the...

  7. 50 CFR 27.72 - Audio equipment.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...27.72 Audio equipment. The operation or use of audio devices including radios, recording and playback devices, loudspeakers, television sets, public address systems and musical instruments so as to cause unreasonable disturbance to others in the...

  8. 50 CFR 27.72 - Audio equipment.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...27.72 Audio equipment. The operation or use of audio devices including radios, recording and playback devices, loudspeakers, television sets, public address systems and musical instruments so as to cause unreasonable disturbance to others in the...

  9. Audio classification from time-frequency texture

    E-print Network

    Slotine, Jean-Jacques E.

    Time-frequency representations of audio signals often resemble texture images. This paper derives a simple audio classification algorithm based on treating sound spectrograms as texture images. The algorithm is inspired ...

  10. COMPILING MPEG 4 STRUCTURED AUDIO INTO C John Lazzaro and John Wawrzynek

    E-print Network

    Lazzaro, John

    -C approach offloads the complex task of machine code generation to the system C compiler. C is a good management. We have written the experimental SA decoder sfront, which is based on SAOL-to-C translation. We on the platform as a file renderer. In addition, sfront has an audio and control driver structure, so that library

  11. Kenneth S. Goldstein Audio Recordings

    NSDL National Science Digital Library

    This remarkable collection consists of over 850 audio reels recorded primarily by Dr. Kenneth S. Goldstein. He was a folklorist, record producer, and teacher who happened to also find time to serve as chairman of the department of folklore and folklife at the University of Pennsylvania. These audio tapes include interviews with musicians and storytellers, recitations of folktales from Newfoundland and Labrador, Pennsylvania, and Scotland. First-time visitors might do well to look over the English Language Folktale reels and then move on to perform their own detailed search across the entire archive. Visitors can also elect to receive updates on the collection via their RSS feed.

  12. FLAC: Free Lossless Audio Codec

    NSDL National Science Digital Library

    The Free Lossless Audio Codec (FLAC) is a method of compressing audio data. Whereas the widely known MP3 format sacrifices sound quality for a smaller compressed size, FLAC does not lose information in the encoding process. FLAC is an open source software project, and its homepage contains downloadable encoding utilities for most common operating systems. An excellent overview of the FLAC format is given, which explains the underlying architecture and features of the codec. This section also provides links to background information and research papers upon which the development of FLAC was based. Thorough documentation is included online.

  13. Robust audio watermarking in the time domain

    Microsoft Academic Search

    Paraskevi Bassia; Ioannis Pitas; Nikos Nikolaidis

    2001-01-01

    The audio watermarking method proposed in this paper offers copyright protection to an audio signal by time domain processing. The strength of audio signal modifications is limited by the necessity to produce an output signal that is perceptually similar to the original one. The watermarking method presented here does not require the use of the original signal for watermark detection.

  14. Highlight sound effects detection in audio stream

    Microsoft Academic Search

    Rui Cai; Lie Lu; Hong-Jiang Zhang; Lian-Hong Cai

    2003-01-01

    This paper addresses the problem of highlight sound effects detection in audio stream, which is very useful in fields of video summarization and highlight extraction. Unlike researches on audio segmentation and classification, in this domain, it just locates those highlight sound effects in audio stream. An extensible framework is proposed and in current system three sound effects are considered: laughter,

  15. Mobile Audio Designs Monkey: A Tool for Audio Augmented Reality

    E-print Network

    and Treo, which are, among other things, a cell phone, web browser, and email client. Users have also started wearing Bluetooth headsets that provide a constant audio link to their phones, the mobile user may have large portions their field of view obstructed, which is dangerous and distracting

  16. FLYING MONSTERS SCRIPT Voice Audio

    E-print Network

    FLYING MONSTERS SCRIPT Voice Audio Narrator There was a time on Earth, millions of years ago, when flying monsters, the stuff of legend, really did exist. Narrator They were the Pterosaurs, the first such success, did they vanish? (Title Card) ("Flying Monsters 3D with David Attenborough") Narrator Around 220

  17. Audio Engineering Society Convention Paper

    E-print Network

    Paris-Sud XI, Université de

    is similar to what is done for the web of documents with HTML and CSS style sheets. 1. INTRODUCTION 1.1. ARA designed an XML language (A2ML) for interactive audio on mobiles, to follow the trend in powerful mobile not only sequencing but also 3D sound rendering and declarative parameter's animation (DSP and positional

  18. A Simple Audio Conductivity Device.

    ERIC Educational Resources Information Center

    Berenato, Gregory; Maynard, David F.

    1997-01-01

    Describes a simple audio conductivity device built to address the problem of the lack of sensitivity needed to measure small differences in conductivity in crude conductivity devices. Uses a 9-V battery as a power supply and allows the relative resistance differences between substances to be detected by the frequency of its audible tones. Presents…

  19. Audio-Visual Materials Catalog.

    ERIC Educational Resources Information Center

    Anderson (M.D.) Hospital and Tumor Inst., Houston, TX.

    This catalog lists 27 audiovisual programs produced by the Department of Medical Communications of the University of Texas M. D. Anderson Hospital and Tumor Institute for public distribution. Video tapes, 16 mm. motion pictures and slide/audio series are presented dealing mostly with cancer and related subjects. The programs are intended for…

  20. Audio Engineering Society Convention Paper

    E-print Network

    Reiss, Josh

    Society. An automatic maximum gain normalization technique with applications to audio mixing. Enrique. The method automatically calculates the appropriate gain that should be applied in order to maintain maximum the inevitable effect of turning the sound reinforcement system into an endless feedback loop, and it is the air

  1. Audio Engineering Society Convention Paper

    E-print Network

    Bove Jr., V. Michael

    of surroundings, movement and position. Sound accompanies most human activity, providing signatures that can,vmb}@media.mit.edu ABSTRACT An active audio self-localization algorithm is described which is effective even for distributed of estimating ranges from recordings of reference sounds is used. Pseudo-noise "chirps" are emitted and recorded

  2. Audio/ Videoconferencing Packages: Low Cost

    ERIC Educational Resources Information Center

    Treblay, Remy; Fyvie, Barb; Koritko, Brenda

    2005-01-01

    A comparison was conducted of "Voxwire MeetingRoom" and "iVocalize" v4.1.0.3, both Web-conferencing products using voice-over-Internet protocol (VoIP) to provide unlimited, inexpensive, international audio communication, and high-quality Web-conferencing fostering collaborative learning. The study used the evaluation criteria used in earlier…

  3. Acoustic Segmentation for Audio Browsers

    Microsoft Academic Search

    Don Kimber; Lynn Wilcox

    1996-01-01

    Online digital audio is a rapidly growing resource, whichcan be accessed in rich new ways not previously possible.For example, it is possible to listen to just thoseportions of a long discussion whichinvolve a given subsetof people, or to instantly skip ahead to the next speaker.Providing this capability to users, however, requires generationof necessary indices, as well as an interface whichutilizes

  4. Audio Engineering Society Convention Paper

    E-print Network

    Jackson, Philip JB

    of Sound Recording, University of Surrey 2 Centre for Vision Speech and Signal Processing, University of the Audio Engineering Society. Objective Assessment of Spatial Localisation Attributes of Surround-Sound the listening area of various sound reproduction systems: mono, two-channel stereo (TCS), 3/2 stereo (i.e., 5

  5. Audio Engineering Society Convention Paper

    E-print Network

    Maher, Robert C.

    and seasonal changes in natural sound environments [1, 2]. Although digital storage of such recordings is now recording, the more common situation in recordings of natural sound environments is #12;Maher Extreme Time The increasing availability of audio recording devices capable of capturing hours, days, or weeks of continuous

  6. Radioactive Decay: Audio Data Collection

    ERIC Educational Resources Information Center

    Struthers, Allan

    2009-01-01

    Many phenomena generate interesting audible time series. This data can be collected and processed using audio software. The free software package "Audacity" is used to demonstrate the process by recording, processing, and extracting click times from an inexpensive radiation detector. The high quality of the data is demonstrated with a simple…

  7. Quantitative characterisation of audio data by ordinal symbolic dynamics

    NASA Astrophysics Data System (ADS)

    Aschenbrenner, T.; Monetti, R.; Amigó, J. M.; Bunk, W.

    2013-06-01

    Ordinal symbolic dynamics has developed into a valuable method to describe complex systems. Recently, using the concept of transcripts, the coupling behaviour of systems was assessed, combining the properties of the symmetric group with information theoretic ideas. In this contribution, methods from the field of ordinal symbolic dynamics are applied to the characterisation of audio data. Coupling complexity between frequency bands of solo violin music, as a fingerprint of the instrument, is used for classification purposes within a support vector machine scheme. Our results suggest that coupling complexity is able to capture essential characteristics, sufficient to distinguish among different violins.

  8. Cluster: Metals. Course: Machine Shop. Research Project.

    ERIC Educational Resources Information Center

    Sanford - Lee County Schools, NC.

    The set of 13 units is designed for use with an instructor in actual machine shop practice and is also keyed to audio visual and textual materials. Each unit contains a series of task packages which: specify prerequisites within the series (minimum is Unit 1); provide a narrative rationale for learning; list both general and specific objectives in…

  9. Mean Machines.

    ERIC Educational Resources Information Center

    Flores, Alfinio

    1998-01-01

    Suggests scales as alternative representations of numerical concepts and operations that can be used as arithmetic-mean machines, adding machines, multiplication machines, and geometric-mean machines. (ASK)

  10. Simple Machines

    NSDL National Science Digital Library

    Mr. Oldroyd

    2007-09-26

    Online Simple Machines Assignment OBJECTIVES: Student\\'s will be able to name and describe all seven simple machines. Students will be able to identify simple machines that they use everyday. Example: Clock = Gear INSTRUCTIONS: 1. Click on the Simple Machines Glossary page and familiarize yourself with the seven simple machines. Simple Machines Glossary Page 2. Students are to click on ...

  11. Working with HTML5 Audio and Video

    Microsoft Academic Search

    Peter Lubbers; Brian Albers; Frank Salim

    \\u000a In this chapter, we’ll explore what you can do with two important HTML5 elements—audio and video— and we’ll show you how they can be used to create compelling applications. The audio and video elements add new media options\\u000a to HTML5 applications that allow you to use audio and video without plugins while providing a common, integrated, and scriptable\\u000a API.

  12. Simple Machines

    NSDL National Science Digital Library

    AWOL

    2006-11-15

    This activity is designed to learn about simple machines and to have fun doing so! First, use this website to learn backround information on the basics of simple machines. Try the quiz! Simple Machines Learning Site Next, play a game that tests your ability to identify simple machines.... Edheads: Simple Machines Finally, view this video to see how students your age used applied simple machines to do a cool task... Building Simple Machines: A Glass of Milk, Please ...

  13. Collusion-resistant audio fingerprinting system in the modulated complex lapped transform domain.

    PubMed

    Garcia-Hernandez, Jose Juan; Feregrino-Uribe, Claudia; Cumplido, Rene

    2013-01-01

    Collusion-resistant fingerprinting paradigm seems to be a practical solution to the piracy problem as it allows media owners to detect any unauthorized copy and trace it back to the dishonest users. Despite the billionaire losses in the music industry, most of the collusion-resistant fingerprinting systems are devoted to digital images and very few to audio signals. In this paper, state-of-the-art collusion-resistant fingerprinting ideas are extended to audio signals and the corresponding parameters and operation conditions are proposed. Moreover, in order to carry out fingerprint detection using just a fraction of the pirate audio clip, block-based embedding and its corresponding detector is proposed. Extensive simulations show the robustness of the proposed system against average collusion attack. Moreover, by using an efficient Fast Fourier Transform core and standard computer machines it is shown that the proposed system is suitable for real-world scenarios. PMID:23762455

  14. Collusion-Resistant Audio Fingerprinting System in the Modulated Complex Lapped Transform Domain

    PubMed Central

    Garcia-Hernandez, Jose Juan; Feregrino-Uribe, Claudia; Cumplido, Rene

    2013-01-01

    Collusion-resistant fingerprinting paradigm seems to be a practical solution to the piracy problem as it allows media owners to detect any unauthorized copy and trace it back to the dishonest users. Despite the billionaire losses in the music industry, most of the collusion-resistant fingerprinting systems are devoted to digital images and very few to audio signals. In this paper, state-of-the-art collusion-resistant fingerprinting ideas are extended to audio signals and the corresponding parameters and operation conditions are proposed. Moreover, in order to carry out fingerprint detection using just a fraction of the pirate audio clip, block-based embedding and its corresponding detector is proposed. Extensive simulations show the robustness of the proposed system against average collusion attack. Moreover, by using an efficient Fast Fourier Transform core and standard computer machines it is shown that the proposed system is suitable for real-world scenarios. PMID:23762455

  15. Marble Track Audio Manipulator (MTAM): A Tangible User Interface for Audio Composition

    E-print Network

    Jacob, Robert J.K.

    1 Marble Track Audio Manipulator (MTAM): A Tangible User Interface for Audio Composition Alex Bean children to create musical compositions through constructive play. Our Marble Track Audio Manipulator (MTAM) is an augmented marble tower construction kit where marbles represent sound clips and tracks represent different

  16. Three-Dimensional Audio Client Library

    NASA Technical Reports Server (NTRS)

    Rizzi, Stephen A.

    2005-01-01

    The Three-Dimensional Audio Client Library (3DAudio library) is a group of software routines written to facilitate development of both stand-alone (audio only) and immersive virtual-reality application programs that utilize three-dimensional audio displays. The library is intended to enable the development of three-dimensional audio client application programs by use of a code base common to multiple audio server computers. The 3DAudio library calls vendor-specific audio client libraries and currently supports the AuSIM Gold-Server and Lake Huron audio servers. 3DAudio library routines contain common functions for (1) initiation and termination of a client/audio server session, (2) configuration-file input, (3) positioning functions, (4) coordinate transformations, (5) audio transport functions, (6) rendering functions, (7) debugging functions, and (8) event-list-sequencing functions. The 3DAudio software is written in the C++ programming language and currently operates under the Linux, IRIX, and Windows operating systems.

  17. Reverse Audio Engineering: Model-Based Inversion of Dynamic Range

    E-print Network

    and entertainment. But not many know how the audio was produced. If we take sound recording and reproduction, reverse audio engineering. I. INTRODUCTION SOUND or audio engineering is an established discipline

  18. 47 CFR 73.403 - Digital audio broadcasting service requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Digital audio broadcasting service requirements. 73...RADIO SERVICES RADIO BROADCAST SERVICES Digital Audio Broadcasting § 73.403 Digital audio broadcasting service requirements....

  19. 47 CFR 73.403 - Digital audio broadcasting service requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Digital audio broadcasting service requirements. 73...RADIO SERVICES RADIO BROADCAST SERVICES Digital Audio Broadcasting § 73.403 Digital audio broadcasting service requirements....

  20. TRAINING TYPISTS IN THE INDUSTRIAL ENVIRONMENT--PRELIMINARY REPORT OF A PROTOTYPE SYSTEM OF SIMULTANEOUS, MULTILEVEL, MULTIPHASIC AUDIO PROGRAMMING.

    ERIC Educational Resources Information Center

    ADAMS, CHARLES F.

    IN 1965 TEN NEGRO AND PUERTO RICAN GIRLS BEGAN CLERICAL TRAINING IN THE NATIONAL ASSOCIATION OF MANUFACTURERS (NAM) TYPING LABORATORY I (TEELAB-I), A PILOT PROJECT TO DEVELOP A SYSTEM OF TRAINING TYPISTS WITHIN THE INDUSTRIAL ENVIRONMENT. THE INITIAL SYSTEM, AN ADAPTATION OF GREGG AUDIO MATERIALS TO A MACHINE TECHNOLOGY, TAUGHT ACCURACY, SPEED…

  1. Digital Audio: A Sound Design Element.

    ERIC Educational Resources Information Center

    Barron, Ann; Varnadoe, Susan

    1992-01-01

    Discussion of incorporating audio into videodiscs for multimedia educational applications highlights a project developed for the Navy that used digital audio in an interactive video delivery system (IVDS) for training sonar operators. Storage constraints with videodiscs are explained, design requirements for the IVDS are described, and production…

  2. MOSIEVIUS: FEATURE DRIVEN INTERACTIVE AUDIO MOSAICING

    Microsoft Academic Search

    Ari Lazier; Perry Cook

    2003-01-01

    The process of creating an audio mosaic consists of the concate- nation of segments of sound. Segments are chosen to correspond best with a description of a target sound specified by the desi red features of the final mosaic. Current audio mosaicing techni ques take advantage of the description of future target units in o rder to make more intelligent

  3. Improving Audio Quality in Distance Learning Applications.

    ERIC Educational Resources Information Center

    Richardson, Craig H.

    This paper discusses common causes of problems encountered with audio systems in distance learning networks and offers practical suggestions for correcting the problems. Problems and discussions are divided into nine categories: (1) acoustics, including reverberant classrooms leading to distorted or garbled voices, as well as one-dimensional audio

  4. Personal 3D audio system with loudspeakers

    Microsoft Academic Search

    Myung-Suk Song; Cha Zhang; Dinei A. F. Floręncio; Hong-Goo Kang

    2010-01-01

    Traditional 3D audio systems often have a limited sweet spot for the user to perceive 3D effects successfully. In this paper, we present a personal 3D audio system with loudspeakers that has unlimited sweet spots. The idea is to have a camera track the user's head movement, and recompute the crosstalk canceller filters accordingly. As far as the authors are

  5. Let's Hear It for Audio Mining

    NSDL National Science Digital Library

    Leavitt, Neal

    A detailed introduction is offered on the Leavitt Communications Web site. This article delves into how audio mining works by giving a basic technical understanding of the process. Approaches to audio mining are discussed, as well as how the technology works, performance, languages, and the challenges faced by designers.

  6. Dual Audio TV Instruction: A Broadcast Experiment.

    ERIC Educational Resources Information Center

    Borton, Terry; And Others

    An experiment assessed the potential effectiveness of "dual audio television instruction" (DATI) as a mass education medium. The DATI consisted of a radio program heard by children while they watched television shows. The audio instructor did not talk when the television characters spoke, but used the "quiet" times to help with reading, define…

  7. Features for audio and music classification

    Microsoft Academic Search

    Martin F. Mckinney; Jeroen Breebaart

    2003-01-01

    Four audio feature sets are evaluated in their ability to classify five general audio classes and seven pop- ular music genres. The feature sets include low-level signal properties, mel-frequency spectral coefficients, and two new sets based on perceptual models of hear- ing. The temporal behavior of the features is ana- lyzed and parameterized and these parameters are in- cluded as

  8. Video Genre Categorization Using Audio Wavelet Coefficients

    Microsoft Academic Search

    P. Q. Dinh; C. Dorai; S. Venkatesh

    2002-01-01

    Abstract In this paper, we investigate the use of a wavelet transform-based analysis of audio tracks accompanying videos for the problem of automatic program genre detec- tion. We compare the classification performancebased on wavelet-based audio features to that using conventional features derived from Fourier and time analysis for the task of discriminating TV programs such as news, com- mercials, music

  9. Digital Advances in Contemporary Audio Production.

    ERIC Educational Resources Information Center

    Shields, Steven O.

    Noting that a revolution in sonic high fidelity occurred during the 1980s as digital-based audio production methods began to replace traditional analog modes, this paper offers both an overview of digital audio theory and descriptions of some of the related digital production technologies that have begun to emerge from the mating of the computer…

  10. Digital Audio Sampling for Film and Video.

    ERIC Educational Resources Information Center

    Stanton, Michael J.

    Digital audio sampling is explained, and some of its implications in digital sound applications are discussed. Digital sound equipment is rapidly replacing analog recording devices as the state-of-the-art in audio technology. The philosophy of digital recording involves doing away with the continuously variable analog waveforms and turning the…

  11. Robust audio watermarking for copyright protection

    NASA Astrophysics Data System (ADS)

    Wu, Chung-Ping; Su, Po-Chyi; Kuo, C.-C. J.

    1999-11-01

    A digital audio watermarking scheme of low complexity is proposed in this research as an effective way to deter users from misusing or illegally distributing audio data. Previous work on audio watermarking has primarily focused on the inaudibility of the embedded watermark and its robustness against attacks such as compression and noise. In this research, special attention is paid to the synchronization attack caused by casual audio editing or malicious random cropping, which is a low-cost yet effective attack to watermarking algorithms developed before. The proposed scheme is based on audio content analysis and watermark embedding in the Fourier transform domain. A blind watermark detection technique is developed to identify the embedded watermark under various types of attacks.

  12. Plasmon-assisted audio recording.

    PubMed

    Chen, Hao; Bhuiya, Abdul M; Ding, Qing; Toussaint, Kimani C

    2015-01-01

    We present the first demonstration of the recording of optically encoded audio onto a plasmonic nanostructure. Analogous to the "optical sound" approach used in the early twentieth century to store sound on photographic film, we show that arrays of gold, pillar-supported bowtie nanoantennas could be used in a similar fashion to store sound information that is transferred via an amplitude modulated optical signal to the near field of an optical microscope. Retrieval of the audio information is achieved using standard imaging optics. We demonstrate that the sound information can be stored either as time-varying waveforms or in the frequency domain as the corresponding amplitude and phase spectra. A "plasmonic musical keyboard" comprising of 8 basic musical notes is constructed and used to play a short song. For comparison, we employ the correlation coefficient, which reveals that original and retrieved sound files are similar with maximum and minimum values of 0.995 and 0.342, respectively. We also show that the pBNAs could be used for basic signal processing by ablating unwanted frequency components on the nanostructure thereby enabling physical notch filtering of these components. Our work introduces a new application domain for plasmonic nanoantennas and experimentally verifies their potential for information processing. PMID:25773401

  13. AME CURRICULUM GUIDE FALL 2014 AUDIO AND MUSIC ENGINEERING

    E-print Network

    choose to earn a Master of Science degree in Electrical Engineering with as little as one additional year manufacturing, audio software development, music and audio recording and production, core audio and signal processing technologies and component manufacturing, musical instruments and audio equipment manufacturing

  14. AME CURRICULUM GUIDE SPRING 2014 AUDIO AND MUSIC ENGINEERING

    E-print Network

    Mahon, Bradford Z.

    choose to earn a Master of Science degree in Electrical Engineering with as little as one additional year manufacturing, audio software development, music and audio recording and production, core audio and signal processing technologies and component manufacturing, musical instruments and audio equipment manufacturing

  15. A ROBUST AUDIO FINGERPRINT EXTRACTION ALGORITHM Jerome Lebosse

    E-print Network

    Brun, Chez Luc

    A ROBUST AUDIO FINGERPRINT EXTRACTION ALGORITHM Jâ??erâ??ome Lebossâ??e France Tâ??elâ??ecom R&D 32 rue des coutures 14000 Caen,France jeanclaude.pailles@orange­ft.com ABSTRACT An Audio fingerprint is a small digest of an audio file computed from its main perceptual properties. Like human fingerprints, Audio fingerprints

  16. Audio-Visual Atoms for Generic Video Concept Classification

    E-print Network

    Chang, Shih-Fu

    -frequency analysis. Audio atoms are extracted around energy onsets. Visual and audio atoms form AVAs, based on which the challenging issue of joint audio-visual analysis of generic videos targeting at concept detection. We extract with regional visual fea- tures and audio onset features. We develop a hierarchical algorithm to extract visual

  17. A Scalable System for 3D Audio Ray Tracing

    Microsoft Academic Search

    Wolfgang Mueller; Frank Ullmann

    1999-01-01

    Abstract Though several approaches in sound processing are denoted as 3D audio very few of them generate high quality 3D audio information which allows listeners to exactly locate sound sources in three dimensional space We present an approach to enhance sound by high quality 3D audio information through acoustic ray tracing where 3D audio is o ine processed with digital

  18. A Two Level Classifier Process for Audio Segmentation

    Microsoft Academic Search

    Sébastien Lefčvre; Benjamin Maillard; Nicole Vincent

    2002-01-01

    We are dealing in this paper with audio segmentation. We propose a two level segmentation process that enables the audio tracks to be sampled in short sequences which are classified into several classes. The segmentation is per- formed by computing several features for each audio se- quence. These features are computed either on a complete audio segment or on a

  19. Hierarchical classification of audio data for archiving and retrieving

    Microsoft Academic Search

    Tong Zhang; C.-C. Jay Kuo

    1999-01-01

    A hierarchical system for audio classification and retrieval based on audio content analysis is presented in this paper. The system consists of three stages. The first stage is called the coarse-level audio classification and segmentation, where audio recordings are classified and segmented into speech, music, several types of environmental sounds, and silence, based on morphological and statistical analysis of temporal

  20. High-Fidelity Piezoelectric Audio Device

    NASA Technical Reports Server (NTRS)

    Woodward, Stanley E.; Fox, Robert L.; Bryant, Robert G.

    2003-01-01

    ModalMax is a very innovative means of harnessing the vibration of a piezoelectric actuator to produce an energy efficient low-profile device with high-bandwidth high-fidelity audio response. The piezoelectric audio device outperforms many commercially available speakers made using speaker cones. The piezoelectric device weighs substantially less (4 g) than the speaker cones which use magnets (10 g). ModalMax devices have extreme fabrication simplicity. The entire audio device is fabricated by lamination. The simplicity of the design lends itself to lower cost. The piezoelectric audio device can be used without its acoustic chambers and thereby resulting in a very low thickness of 0.023 in. (0.58 mm). The piezoelectric audio device can be completely encapsulated, which makes it very attractive for use in wet environments. Encapsulation does not significantly alter the audio response. Its small size (see Figure 1) is applicable to many consumer electronic products, such as pagers, portable radios, headphones, laptop computers, computer monitors, toys, and electronic games. The audio device can also be used in automobile or aircraft sound systems.

  1. History Channel: Audio and Video

    NSDL National Science Digital Library

    Itâ??s perhaps a bit of a stretch of the imagination to think of a place that would include both a clip of Spiro Agnew speaking out on what he perceived to be the biases of television news coverage and some archival footage of Depression-era gangsters, but itâ??s all right here on the History Channelâ??s Audio and Video online archive. The speech archive is quite nice, and may prove to be both edifying and entertaining. Visitors can browse the speech archive by topics (such as War & Diplomacy) or alphabetically. Some of the clips offered here include comments by the scientist Wernher von Braun after hearing that the U.S.S.R had landed a spacecraft on the moon. The video clip section is also quite well-developed, as it contains clips of the trial of Adolf Eichmann and the breaking of the sound barrier.

  2. A Morphological Analysis of Audio Objects and their Control Methods for 3D Audio

    E-print Network

    Paris-Sud XI, Université de

    technique, the rendering method, and the loudspeaker configuration. While object-based audio production reduces this dependency on loudspeaker configurations, related au- thoring tools are still difficult

  3. MACHINE CONTEST MACHINE VOLUME WORKSHEET

    E-print Network

    Yener, Aylin

    MACHINE CONTEST® MACHINE VOLUME WORKSHEET Note: Each square is 1' x 1' (0.3 m x 0.3 m) (Official the footprint of your machine NOTE: If any part of the machine falls within a square, you must count the entire: _______________ (choose one: ft2 or m2 ) STEP 3: Measure the height of your machine. NOTE: The maximum height is 8' (2.4 m

  4. Audio browsing of automaton-based hypertext

    E-print Network

    Ustun, Selen

    2004-09-30

    and navigation mechanisms for a wider audience. One of the new presentation methods is the audio-only presentation of hypertext content and this research proposes a novel solution to this problem for complex and dynamic systems. The hypothesis...

  5. Web Audio/Video Streaming Tool

    NASA Technical Reports Server (NTRS)

    Guruvadoo, Eranna K.

    2003-01-01

    In order to promote NASA-wide educational outreach program to educate and inform the public of space exploration, NASA, at Kennedy Space Center, is seeking efficient ways to add more contents to the web by streaming audio/video files. This project proposes a high level overview of a framework for the creation, management, and scheduling of audio/video assets over the web. To support short-term goals, the prototype of a web-based tool is designed and demonstrated to automate the process of streaming audio/video files. The tool provides web-enabled users interfaces to manage video assets, create publishable schedules of video assets for streaming, and schedule the streaming events. These operations are performed on user-defined and system-derived metadata of audio/video assets stored in a relational database while the assets reside on separate repository. The prototype tool is designed using ColdFusion 5.0.

  6. Supreme Court audio file search engine

    E-print Network

    Wang, Edward M., 1976-

    2004-01-01

    Search engines have evolved from simple text indexing to indexing other forms of media, such as audio and video. I have designed and implemented a web-based system that permits people to search the transcripts of selected ...

  7. Simple Machines

    NSDL National Science Digital Library

    At this website, EdHeads, a nonprofit, offers five interactive, animated modules to educate second- through sixth-graders about simple machines. By identifying the many machines located throughout a house, students can learn about fulcrums, wheel and axles, levers, pulleys, inclined planes, and much more. The website is equipped with simple animations to help children understand how the machines work. After students have a handle on simple machines, they can begin to see how they work together to create compound machines. The website also provides a brief glossary summarizing nine types of simple machines. This site is also reviewed in the February 18, 2005_NSDL Physical Sciences Report_.

  8. Plumbing fixture patterns through audio sampling

    E-print Network

    Shea, Kevin Bruce

    2002-01-01

    PLUMBING FIXTURE USAGE PATTERNS THROUGH AUDIO SAMPLING A Thesis by KEVIN BRUCE SHEA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 2002... Major Subject: Construction Management PLUMBING FIXTURE USAGE PATTERNS THROUGH AUDIO SAMPLING A Thesis by KEVIN BRUCE SHEA Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved...

  9. Jet Audio Basic 5.12

    NSDL National Science Digital Library

    2003-01-01

    Jet Audio is an integrated multimedia software program that allows for simple playback, but includes dozens of other helpful features, such as the ability to record music, the ability to convert to other file formats, and the option to broadcast music over the Internet. Other features include speed control (without pitch change), an alarm and timer, a number of equalizer modes, and crossfading between songs. This latest version of Jet Audio is compatible with all systems running Windows 98 and higher.

  10. Summarizing Musical Preferences as Audio Signatures

    Microsoft Academic Search

    Jason Freeman

    iTunes Signature Maker (iTSM) uses a feature-driven audio editing algorithm to rapidly generate a short sonic signature of an iTunes music library. iTSM stitches together small segments of songs, driving a concatenative algorithm with spectral features intrinsic to the audio files themselves and with environmental features which describe how those files have been used. This paper describes the software's implementation

  11. Huffman coding in advanced audio coding standard

    NASA Astrophysics Data System (ADS)

    Brzuchalski, Grzegorz

    2012-05-01

    This article presents several hardware architectures of Advanced Audio Coding (AAC) Huffman noiseless encoder, its optimisations and working implementation. Much attention has been paid to optimise the demand of hardware resources especially memory size. The aim of design was to get as short binary stream as possible in this standard. The Huffman encoder with whole audio-video system has been implemented in FPGA devices.

  12. Kid Machine

    NSDL National Science Digital Library

    2012-06-26

    This activity is on page 3 (continued on page 2) of the pdf, part of the Simple Machines Discovery Box. In this fun activity, learners "create" a complex machine by simulating the parts in action. Learners move their bodies and make sounds as if they are individual parts of a moving machine. Then learners discover what happens when part of a machine is broken and problem solve ways to fix it.

  13. SIMPLE MACHINES

    NSDL National Science Digital Library

    Mrs. MacHose

    2007-03-10

    You will be learning about several types of simple machines. Have fun!! Review the first website (which is right here!! Simple machines) . It has information about simple machines. DON\\"T click until you read all directions!!! Prepare to discuss each type in class. You will need to take some basic notes about each machine, using a bubble-map format. Don\\'t forget ...

  14. Integration of rule-based formant synthesis and waveform concatenation: a hybrid approach to text-to-speech synthesis

    Microsoft Academic Search

    Susan R. Hertz

    2002-01-01

    This paper describes an approach to speech synthesis in which waveform fragments dynamically produced with a set of formant-based synthesis rules are concatenated with pre-stored natural speech waveform fragments to produce a synthetic utterance. While this hybrid approach was originally implemented as a tool for research into improved voice quality in formant-based synthesis, it has produced such good results that

  15. Time-frequency Masking EECS 352: Machine Perception of

    E-print Network

    Pardo, Bryan

    Time-frequency Masking EECS 352: Machine Perception of Music & Audio Zafar Rafii, Winter 2014 1 #12;Real spectrogram time frequency · The Short-Time Fourier Transform (STFT) is a succession of local Fourier Transforms (FT) STFT STFT Zafar Rafii, Winter 2014 2 + j* Imaginary spectrogram time frequency

  16. Sewing Machines!!

    NSDL National Science Digital Library

    Miss. Walker

    2008-10-20

    Learn the Parts of a Sewing Machine This should help you understand the history of sewing machines and how they work. For this assignment, answer these questions on a sheet of paper and bring it to class. Click on this link to go to a site which will briefly explain the history of the sewing machine: wikipedia Was ...

  17. Electrostatic Machines

    NSDL National Science Digital Library

    De Queiroz, Antonio Carlos M.

    This website from Antonio Carlos M. De Queiroz, an associate professor at the Federal University of Rio de Janeiro, illustrates a number of different electrostatic machines. The site includes details and images of machines built by the professor as well as many other historical machines of this type. Some information is also available in Portugese.

  18. Simple Machines

    NSDL National Science Digital Library

    2012-08-03

    This is a lesson about simple machines and how they relate to robots. Learners will gain an understanding of simple machines and how they may be used in our everyday lives. Students will also have an opportunity to design a Rube Goldberg Machine of their own. This is lesson 10 of 16 in the MarsBots learning module.

  19. Simple Machines

    NSDL National Science Digital Library

    COSI

    2000-01-01

    This is an online activity about simple machines. Learners will try their hand at putting these amazing devices to work. They will use several simple machines to help "build" a tree house. This is an excellent activity to demonstrate how science - in particular, simple machines - are at work in our everyday lives.

  20. Could Audio-Described Films Benefit from Audio Introductions? An Audience Response Study

    ERIC Educational Resources Information Center

    Romero-Fresco, Pablo; Fryer, Louise

    2013-01-01

    Introduction: Time constraints limit the quantity and type of information conveyed in audio description (AD) for films, in particular the cinematic aspects. Inspired by introductory notes for theatre AD, this study developed audio introductions (AIs) for "Slumdog Millionaire" and "Man on Wire." Each AI comprised 10 minutes of…

  1. Combination of Audio and Lyrics Features for Genre Classification in Digital Audio Collections

    E-print Network

    , which describe songs in terms of content words. Lyrics of music may be orthogonal to its soundCombination of Audio and Lyrics Features for Genre Classification in Digital Audio Collections online music stores having turned into profitable businesses. The widespread user adaption of digital

  2. Online Submission ID: 0028 AudioCloning: Extracting Material Fingerprints from Example Audio Recording

    E-print Network

    North Carolina at Chapel Hill, University of

    , computer3 animation, and feature films. Sound effects are usually produced4 from either audio recordings the intrinsinc audio quality of the original recording of18 the sounding material, while naturally varying.e. the differences between the real-world21 recording and modal-synthesized sounds, and transfer it to various22

  3. Pitch Histograms in Audio and Symbolic Music Information Retrieval Pitch Histograms in Audio and Symbolic

    E-print Network

    Tzanetakis, George

    Pitch Histograms in Audio and Symbolic Music Information Retrieval Pitch Histograms in Audio to represent musical content, pitch and timing information is utilized in the majority of existing work. In this paper, Pitch Histograms are defined and proposed as a way to represent the pitch content of music

  4. Digital Multicasting of Multiple Audio Streams

    NASA Technical Reports Server (NTRS)

    Macha, Mitchell; Bullock, John

    2007-01-01

    The Mission Control Center Voice Over Internet Protocol (MCC VOIP) system (see figure) comprises hardware and software that effect simultaneous, nearly real-time transmission of as many as 14 different audio streams to authorized listeners via the MCC intranet and/or the Internet. The original version of the MCC VOIP system was conceived to enable flight-support personnel located in offices outside a spacecraft mission control center to monitor audio loops within the mission control center. Different versions of the MCC VOIP system could be used for a variety of public and commercial purposes - for example, to enable members of the general public to monitor one or more NASA audio streams through their home computers, to enable air-traffic supervisors to monitor communication between airline pilots and air-traffic controllers in training, and to monitor conferences among brokers in a stock exchange. At the transmitting end, the audio-distribution process begins with feeding the audio signals to analog-to-digital converters. The resulting digital streams are sent through the MCC intranet, using a user datagram protocol (UDP), to a server that converts them to encrypted data packets. The encrypted data packets are then routed to the personal computers of authorized users by use of multicasting techniques. The total data-processing load on the portion of the system upstream of and including the encryption server is the total load imposed by all of the audio streams being encoded, regardless of the number of the listeners or the number of streams being monitored concurrently by the listeners. The personal computer of a user authorized to listen is equipped with special- purpose MCC audio-player software. When the user launches the program, the user is prompted to provide identification and a password. In one of two access- control provisions, the program is hard-coded to validate the user s identity and password against a list maintained on a domain-controller computer at the MCC. In the other access-control provision, the program verifies that the user is authorized to have access to the audio streams. Once both access-control checks are completed, the audio software presents a graphical display that includes audiostream-selection buttons and volume-control sliders. The user can select all or any subset of the available audio streams and can adjust the volume of each stream independently of that of the other streams. The audio-player program spawns a "read" process for the selected stream(s). The spawned process sends, to the router(s), a "multicast-join" request for the selected streams. The router(s) responds to the request by sending the encrypted multicast packets to the spawned process. The spawned process receives the encrypted multicast packets and sends a decryption packet to audio-driver software. As the volume or muting features are changed by the user, interrupts are sent to the spawned process to change the corresponding attributes sent to the audio-driver software. The total latency of this system - that is, the total time from the origination of the audio signals to generation of sound at a listener s computer - lies between four and six seconds.

  5. Spatial domain entertainment audio decompression/compression

    NASA Astrophysics Data System (ADS)

    Chan, Y. K.; Tam, Ka Him K.

    2014-02-01

    The ARM7 NEON processor with 128bit SIMD hardware accelerator requires a peak performance of 13.99 Mega Cycles per Second for MP3 stereo entertainment quality decoding. For similar compression bit rate, OGG and AAC is preferred over MP3. The Patent Cooperation Treaty Application dated 28/August/2012 describes an audio decompression scheme producing a sequence of interleaving "min to Max" and "Max to min" rising and falling segments. The number of interior audio samples bound by "min to Max" or "Max to min" can be {0|1|…|N} audio samples. The magnitudes of samples, including the bounding min and Max, are distributed as normalized constants within the 0 and 1 of the bounding magnitudes. The decompressed audio is then a "sequence of static segments" on a frame by frame basis. Some of these frames needed to be post processed to elevate high frequency. The post processing is compression efficiency neutral and the additional decoding complexity is only a small fraction of the overall decoding complexity without the need of extra hardware. Compression efficiency can be speculated as very high as source audio had been decimated and converted to a set of data with only "segment length and corresponding segment magnitude" attributes. The PCT describes how these two attributes are efficiently coded by the PCT innovative coding scheme. The PCT decoding efficiency is obviously very high and decoding latency is basically zero. Both hardware requirement and run time is at least an order of magnitude better than MP3 variants. The side benefit is ultra low power consumption on mobile device. The acid test on how such a simplistic waveform representation can indeed reproduce authentic decompressed quality is benchmarked versus OGG(aoTuv Beta 6.03) by three pair of stereo audio frames and one broadcast like voice audio frame with each frame consisting 2,028 samples at 44,100KHz sampling frequency.

  6. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...functionally equivalent digital audio recording devices or media with substantially...technical processes for digitally recording musical sounds, such as digital audio tape...4) The terms digital audio recording device, digital audio...

  7. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...functionally equivalent digital audio recording devices or media with substantially...technical processes for digitally recording musical sounds, such as digital audio tape...4) The terms digital audio recording device, digital audio...

  8. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...functionally equivalent digital audio recording devices or media with substantially...technical processes for digitally recording musical sounds, such as digital audio tape...4) The terms digital audio recording device, digital audio...

  9. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...notice of distribution of digital audio recording devices or media. 201.27...notice of distribution of digital audio recording devices or media. (a) General...and distribute, any digital audio recording device or digital audio...

  10. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...Statements of Account for digital audio recording devices or media. 201.28...Statements of Account for digital audio recording devices or media. (a) General...the United States any digital audio recording device or digital audio...

  11. Audio stream classification for multimedia database search

    NASA Astrophysics Data System (ADS)

    Artese, M.; Bianco, S.; Gagliardi, I.; Gasparini, F.

    2013-03-01

    Search and retrieval of huge archives of Multimedia data is a challenging task. A classification step is often used to reduce the number of entries on which to perform the subsequent search. In particular, when new entries of the database are continuously added, a fast classification based on simple threshold evaluation is desirable. In this work we present a CART-based (Classification And Regression Tree [1]) classification framework for audio streams belonging to multimedia databases. The database considered is the Archive of Ethnography and Social History (AESS) [2], which is mainly composed of popular songs and other audio records describing the popular traditions handed down generation by generation, such as traditional fairs, and customs. The peculiarities of this database are that it is continuously updated; the audio recordings are acquired in unconstrained environment; and for the non-expert human user is difficult to create the ground truth labels. In our experiments, half of all the available audio files have been randomly extracted and used as training set. The remaining ones have been used as test set. The classifier has been trained to distinguish among three different classes: speech, music, and song. All the audio files in the dataset have been previously manually labeled into the three classes above defined by domain experts.

  12. Podscanning : audio microcontent and synchronous communication for mobile devices

    E-print Network

    Wheeler, Patrick Sean

    2010-01-01

    Over the past decade, computationally powerful audio communication devices have become commonplace. Mobile devices have high storage capacity for digital audio, and smartphones or networked PDAs can be used to stream ...

  13. 47 CFR 10.520 - Common audio attention signal.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...FEDERAL COMMUNICATIONS COMMISSION GENERAL COMMERCIAL MOBILE ALERT SYSTEM Equipment Requirements § 10.520 Common audio...d) The audio attention signal must be restricted to use for Alert Messages under part 10. (e) A device may include the...

  14. 47 CFR 10.520 - Common audio attention signal.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...FEDERAL COMMUNICATIONS COMMISSION GENERAL WIRELESS EMERGENCY ALERTS Equipment Requirements § 10.520 Common audio attention...d) The audio attention signal must be restricted to use for Alert Messages under part 10. (e) A device may include the...

  15. 47 CFR 10.520 - Common audio attention signal.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...FEDERAL COMMUNICATIONS COMMISSION GENERAL COMMERCIAL MOBILE ALERT SYSTEM Equipment Requirements § 10.520 Common audio...d) The audio attention signal must be restricted to use for Alert Messages under part 10. (e) A device may include the...

  16. 47 CFR 10.520 - Common audio attention signal.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...FEDERAL COMMUNICATIONS COMMISSION GENERAL COMMERCIAL MOBILE ALERT SYSTEM Equipment Requirements § 10.520 Common audio...d) The audio attention signal must be restricted to use for Alert Messages under part 10. (e) A device may include the...

  17. 47 CFR 10.520 - Common audio attention signal.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...FEDERAL COMMUNICATIONS COMMISSION GENERAL WIRELESS EMERGENCY ALERTS Equipment Requirements § 10.520 Common audio attention...d) The audio attention signal must be restricted to use for Alert Messages under part 10. (e) A device may include the...

  18. Spatial audio: graphic modeling for X3D

    Microsoft Academic Search

    Hui Ding; Diemo Schwarz; Christian Jacquemin; Roland Cahen

    2011-01-01

    In audio-graphic scenes, visual and audio modalities are synchronized in time and space, and their behaviour is determined by a common process. We present here a novel way of modeling audio-graphic content for interactive 3D scenes with the concept of sound processes and their activation through 2D or 3D profiles. Many 3D applications today support both graphical and audio effects

  19. Free Audio Dub 1.4.1.2

    NSDL National Science Digital Library

    2008-01-01

    Whether you're modifying a speech for inclusion on your own personal website or just trying to parse out a particularly long audio track, Free Audio Dub should fit the bill nicely. The application allows users to delete unwanted parts from audio files without re-encoding. Additionally, it also happens to support a number of audio formats, including MP3's and WAV files. This version is compatible with computers running any version of Windows.

  20. : Helmholtz machine estimation .

    E-print Network

    : Helmholtz machine density estimation . . : . . . (supervised learning) , (active learning) (query learning) [1, 3]. . (unsupervised learning), . , [5]. . Helmholtz machine , . Helmholtz machine : Helmholtz machine [2] . Helmholtz machine (generative network) (recognition network) . , , . Helmholtz machine (self

  1. Enhancing Navigation Skills through Audio Gaming

    PubMed Central

    Sánchez, Jaime; Sáenz, Mauricio; Pascual-Leone, Alvaro; Merabet, Lotfi

    2014-01-01

    We present the design, development and initial cognitive evaluation of an Audio-based Environment Simulator (AbES). This software allows a blind user to navigate through a virtual representation of a real space for the purposes of training orientation and mobility skills. Our findings indicate that users feel satisfied and self-confident when interacting with the audio-based interface, and the embedded sounds allow them to correctly orient themselves and navigate within the virtual world. Furthermore, users are able to transfer spatial information acquired through virtual interactions into real world navigation and problem solving tasks. PMID:25505796

  2. High performance MPEG-audio decoder IC

    NASA Technical Reports Server (NTRS)

    Thorn, M.; Benbassat, G.; Cyr, K.; Li, S.; Gill, M.; Kam, D.; Walker, K.; Look, P.; Eldridge, C.; Ng, P.

    1993-01-01

    The emerging digital audio and video compression technology brings both an opportunity and a new challenge to IC design. The pervasive application of compression technology to consumer electronics will require high volume, low cost IC's and fast time to market of the prototypes and production units. At the same time, the algorithms used in the compression technology result in complex VLSI IC's. The conflicting challenges of algorithm complexity, low cost, and fast time to market have an impact on device architecture and design methodology. The work presented in this paper is about the design of a dedicated, high precision, Motion Picture Expert Group (MPEG) audio decoder.

  3. Development and Testing of Achievement from Multiple Modes of Mathematical Representation: Audio, Audio-Visual, and Kinesthetic

    E-print Network

    Ozel, Serkan

    2012-02-14

    by allocated session time (10-, 20-, and 30-minute). The online manipulative tool (OMT), which was designed to scaffold learning in operations with rational numbers, allowed students to use the following three components in any order: (a) audio, (b) audio...

  4. Automatic Organization of Digital Music Documents Sheet Music and Audio

    E-print Network

    Clausen, Michael

    . The organization targeted in the project of this thesis includes the segmentation of sheet music books and audio CD that allows for applications making explicit use of the synchronization between sheet music books and audio CDAutomatic Organization of Digital Music Documents ­ Sheet Music and Audio Dissertation zur

  5. Mobile Video Capture Targeted Narrowband Audio Content Classification

    Microsoft Academic Search

    Satu-Marja Mäkelä; Johannes Peltola; Mikko Myllyniemi

    2006-01-01

    Audio content analysis and automatic content management research field is facing new challenges from personal home video material created with mobile camera phones. We developed an audio content analysis and segmentation system that is robust to low sampling rate used in mobile phone camcorder tools and operates also well for AMR compressed data. Audio signal is segmented in five different

  6. The audio notebook: paper and pen interaction with structured speech

    Microsoft Academic Search

    Lisa Stifelman; Barry Arons; Chris Schmandt

    2001-01-01

    This paper addresses the problem that a listener experiences when attempting to capture information presented during a lecture, meeting, or interview. Listeners must divide their attention between the talker and their notetaking activity. We propose a new device-the Audio Notebook-for taking notes and interacting with a speech recording. The Audio Notebook is a combination of a digital audio recorder and

  7. SWAN: System for Wearable Audio Jeff Wilson1

    E-print Network

    SWAN: System for Wearable Audio Navigation Jeff Wilson1 , Bruce N. Walker2,3 , Jeffrey Lindsay2 Audio Navigation (SWAN) is being developed to serve as a navigation and orientation aid for persons temporarily or permanently visually impaired. SWAN is a wearable computer consisting of audio-only output

  8. Single-Channel Audio Sources Separation via Optimum Mask Filter

    Microsoft Academic Search

    Mahdi Fallah; Meysam Asgari

    2009-01-01

    In many single-channel audio separation techniques, expressing a given audio mixture in terms of its underlying signals is often introduced as a challenging topic. Opposed to commonly used GMM based approaches, introducing a new mask filter for DFT mixtures, in this paper a VQ-based single channel audio separation approach is proposed. Compared with previously proposed methods including MIXMAX mask filter

  9. Wearable Audio Computing: A Survey of Interaction Techniques

    Microsoft Academic Search

    Deb Roy; Nitin Sawhney; Chris Schmandt; Alex Pentland

    1997-01-01

    We consider wearable computing applications which rely on audio as a primary medium of the interface. This paper surveys a range of interaction techniques which may be applied to the design of wearable audio computers (WACs). A summary of several speech and audio processing technologies which can be used in the interface of WACs are reviewed. We present several usage

  10. Audio Streaming over Bluetooth: An Adaptive ARQ Timeout Approach

    Microsoft Academic Search

    Ling-jyh Chen; Rohit Kapoor; Kevin Lee; M. Y. Sanadidi; Mario Gerla

    2004-01-01

    Streaming audio has become a popular form of media on the Internet. As wireless personal area network architectures (e.g. Bluetooth) are now targeted to support multimedia traffic, streaming audio over these technologies will give rise to interesting applications. But, the variable nature of the wireless medium will not lend itself easily to supporting audio streaming. In this paper we focus

  11. Automatically segmenting and clustering minimal-impact personal audio archives

    E-print Network

    Ellis, Dan

    Automatically segmenting and clustering minimal-impact personal audio archives Daniel P.W. Ellis, and experimenting with methods to index and access the resulting data. Audio archives have several distinctive no attention from the research community. At the same time, continuous audio archives are minimally intrusive

  12. Query by humming: musical information retrieval in an audio database

    Microsoft Academic Search

    Asif Ghias; Jonathan Logan; David Chamberlin; Brian C. Smith

    1995-01-01

    The emergence of audio and video data types in databases will require new information retrieval methods adapted to the specific characteristics and needs of these data types. An ef- fective and natural way of querying a musical audio database is by humming the tune of a song. In this paper, a system for querying an audio database by humming is

  13. Audio quality for a simple forward error correcting code

    E-print Network

    Paris-Sud XI, Université de

    Recent years have seen a growing use of audio and video applications in the Internet. Unlike file the audio quality offered by a simple Forward Error Correction (FEC) code used in audio applications like though there is an increasing demand of a more predictable service, the current Internet offers only

  14. To Make a Long Story Short: Abridged Audio at 10.

    ERIC Educational Resources Information Center

    Annichiarico, Mark

    1996-01-01

    Examines the history of abridged audio publishing 10 years after the formation of the Audio Publishers Association. Topics include abridged versus unabridged versions for bookstores and libraries; vendors and publishers; future possibilities for CDs and DVD (Digital Versatile Disc); and audio leasing for libraries. (LRW)

  15. MTG-DB: A Repository for Music Audio Processing

    Microsoft Academic Search

    Pedro Cano; Markus Koppenberger; Sira Ferradans; Alvaro Martinez; Fabien Gouyon; Vegard Sandvold; Vadim Tarasov; Nicolas Wack

    2004-01-01

    Content-based audio processing researchers need audio and its related meta- data to develop and test algorithms. We present a common repository of audio, metadata, ontologies and algorithms. We detail the hardware implementation, in the form of massive storage and computation cluster, the software and databases design and the ontology management of the current system. The repository, as far as copyright

  16. Precision Machining

    NSDL National Science Digital Library

    Leske, Cavin.

    Basic machining processes are introduced on a Web site that is devoted to engineering fundamentals (1). Descriptions and illustrations of drilling, turning, grinding, and other common processes are provided for people with little to no prior machining knowledge. A waterjet is a non-traditional machining technology that uses high pressure streams of water with abrasive additives rather than solid cutting instruments to slice through metal and other materials. An in-depth discussion of waterjet operation and applications is available from Southern Methodist University (2). Waterjets are often cited as being much more precise than traditional machining techniques. The Waterjet Video Vault (3) contains clips of waterjet machines in action. The video of the foam cutting procedure is especially interesting, as it shows how quick and accurate the machining process can be. An online guide to cross process machining, which incorporates elements from various conventional and unconventional techniques, is provided by the Mechanical Engineering Department at Columbia University (4). Some remarkable and innovative techniques that have surfaced over the past few years are outlined, including underwater laser machining and plasma-assisted machining. Entirely different and exotic machining techniques are required for creating microelectromechanical systems (MEMS) and other extremely small devices. The Caltech Micromachining Laboratory (5) maintains an archive of research highlights and papers on its homepage, including a paper on a MEMS-driven flapping wing for a palm-sized aerial vehicle. An online article from Modern Machine Shop (6) outlines some new technologies and research in the area of high speed machining. A particularly interesting section of the article describes a system developed at the University of Florida that aims to enable micromachining to achieve rotational speeds of standard machining processes, specifically up to a half million rotations per minute. Cutting edge waterjet innovations are the subject of a February 2003 feature from a publication of the Society of Manufacturing Engineers (7). Extremely high pressure nozzles are being developed to improve cutting speed, and enhanced software for controlling machine movements is also a focus of study. This news article (8) from June 20, 2003 describes an electrochemical machining process that is being used to fabricate complex nanostructures. The work, produced by German and U.S. researchers, has the potential to compete with current lithographic processes.

  17. Machine intelligence

    Microsoft Academic Search

    Alex S. Taylor

    2009-01-01

    Under certain conditions, we appear willing to see and interact with computing machines as though they exhibited intelligence, at least an intelligence of sorts. Using exam- ples from AI and robotics research, as well as a selection of relevant art installations and anthropological fieldwork, this paper reflects on some of our interactions with the kinds of machines we seem ready

  18. Simple Machines

    NSDL National Science Digital Library

    Integrated Teaching and Learning Program,

    Through a five-lesson series with five activities, students are introduced to six simple machines—inclined plane, wedge, screw, lever, pulley, wheel-and-axle—as well as compound machines, which are combinations of two or more simple machines. Once students understand about work (work = force x distance), they become familiar with the machines' mechanical advantages, and see how they make work easier. Through an introduction to compound machines, students begin to think critically about machine inventions and their pervasive roles in our lives. After learning about Rube Goldberg contraptions—absurd inventions that complete simple tasks in complicated ways—they evaluate the importance and usefulness of the many machines around them. Through the hands-on activities, students draw designs for contraptions that could move a circus elephant into a rail car, create a construction site ramp design by measuring different inclined planes and calculating the ideal vs. actual mechanical advantage of each, compare the theoretical and actual mechanical advantages of different pulley systems conceived to save a whale, build and test grape catapults made with popsicle sticks and rubber bands, and follow the steps of the engineering design process to design and build Rube Goldberg machines.

  19. Simple Machines

    NSDL National Science Digital Library

    KET

    2010-11-16

    How do you get a glove and a ball up to your tree house? One answer is to use a pulley. A pulley is a simple machine. In this original KET interactive, children learn about the basic workings of three simple machines.

  20. Electric machine

    DOEpatents

    El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

    2012-07-17

    An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

  1. Calculating machines

    NSDL National Science Digital Library

    This website created by Erez Kaplan "deals mainly with the mechanical calculating machines from a collector's point of view." Included here is an historical review of calculating machines, along with Kaplan's attempt to classify the machines, a collection of old advertisements for the machines, and a brief history of calculating. The latest feature is a Java applet that lets you operate an 1885 Felt adding machine to give you a sense of the way it was used. The photos and descriptions provide insight on other gadgets such as the Pocket Cash Registers used by "the sophisticated man or woman of 1900 who had everything." The Reference section provides some resources for further reading, including numerous other personal calculator collectors sites and museums.

  2. The FreeBSD Audio Driver

    Microsoft Academic Search

    Luigi Rizzo

    1997-01-01

    . We recently developed an audio driver in the FreeBSD operatingsystem. In this work, we decided to consider compatibility with existingsoftware interfaces only as a secondary issue, to be implemented ata later time and only for those applications which could not be adaptedto the new software interface. This turned out to be a significant advantage,since it let us design the

  3. Speak Dutch; an Audio-Lingual Course.

    ERIC Educational Resources Information Center

    Lagerwey, Walter

    "Speak Dutch" is a revised and augmented edition of "Modern Dutch, A First Year College Level Audio-Lingual Course for Dutch." The text is organized into 26 regular lessons and four review lessons plus indexes to grammar points and vocabulary and a list of verb paradigms. The first lesson (40 pages) is devoted to systematic presentation of the…

  4. Joint audio visual retrieval for tennis broadcasts

    Microsoft Academic Search

    Rozenn Dahyot; A. Kokaram; N. Rea; Hugh Denman

    2003-01-01

    In recent years, there has been increasing work in the area of content retrieval for sports. The idea is generally to extract important events or create summaries to allow personalisation of the media stream. While previous work in sports analysis has employed either the audio or video stream to achieve some goal, there is little work that explores how much

  5. Constructing stylistic synthesis databases from audio books

    Microsoft Academic Search

    Yong Zhao; Di Peng; Lijuan Wang; Min Chu; Yining Chen; Peng Yu; Jun Guo

    2006-01-01

    In this paper, we explore how to construct stylistic TTS databases from audio books, in which a storyteller performs multiple roles. The goal is to identify and build a set of speech corpora, each of which not only portrays a representative voice style performed by the speaker, but also has sufficient sentences to synthesize natural speech using unit selection approach.

  6. AUTOMATIC ALIGNMENT OF MUSIC AUDIO AND LYRICS

    Microsoft Academic Search

    Annamaria Mesaros; Tuomas Virtanen

    2008-01-01

    This paper proposes an algorithm for aligning singing in pol y- phonic music audio with textual lyrics. As preprocessing, t he sys- tem uses a voice separation algorithm based on melody transcrip- tion and sinusoidal modeling. The alignment is based on a hid- den Markov model speech recognizer where the acoustic model is adapted to singing voice. The textual input

  7. Digital audio broadcasting: an interactive services architecture

    Microsoft Academic Search

    Nikos Manouselis; Pythagoras Karampiperis

    2001-01-01

    Digital media technologies offer enhanced multimedia signal broadcasting and description of the signal on content. Digital audio broadcasting (DAB) is a media standard with extended multimedia capabilities, offering novel services to users world-wide. Each digital broadcasting standard though, cannot be separately viewed from the development of Internet radio broadcasting. We introduce a multi-agent based system architecture, specially designed to provide

  8. Head tracked 3-D audio using loudspeakers

    Microsoft Academic Search

    William G. Gardner

    1997-01-01

    Existing loudspeaker 3-D audio systems suffer from a fixed listening location. This paper proposes using a head tracker to steer the equalization zone to the position of the tracked listener. Sound localization experiments show that this strategy greatly improves localization when the listener is displaced from the ideal listening location, and also enables dynamic localization cues

  9. Audio Engineering Society Convention Paper 7317

    E-print Network

    Allen, Jont

    Society. The Inertial Air Load of a Loudspeaker Diaphragm John Vanderkooy Audio Research Group, University, UK BN44 3SA jv@uwaterloo.ca ABSTRACT A typical bass loudspeaker driver has an inertial air load mass arrangements are made and assessed, including measurements in vacuum. A loudspeaker box presents its own

  10. Bose Learning Center - Audio Demonstrator Technology

    NSDL National Science Digital Library

    Bose Corporation

    Here's information about a new audio technology created at the Bose Corporation, a large manufacturer of sound equipment. The new technology lets the building managers of large places like arenas, auditoriums and outdoor stadiums, preview how the sound system will sound before it's installed.

  11. Enhanced Reality Audio in Interactive Networked Environments

    Microsoft Academic Search

    Vicky Hardman; Marcus Iken

    1996-01-01

    The human auditory system has a two-fold function, to act as a receiver for spoken language, and also as an interpreter of the omni-directional environment that the listener is in (to direct the eyes). The acceptance of a network audio tool depends on both its ability to provide communication between remote participants, and its ability to immerse the listener in

  12. Audio Mining: The Next Big Thing?

    NSDL National Science Digital Library

    To get an idea of what audio mining is and how it can be used, people can read this article from the Cutter Consortium. It lists six broad areas that can benefit from using the technology and briefly discusses each one: technical support centers and help desks, call centers, broadcast media, conference managers, intelligence gathering, law enforcement, and security operations.

  13. The business case for audio watermarking

    Microsoft Academic Search

    P. Jessop

    1999-01-01

    This article reviews the applications of audio watermarking for the recording industry. It examines the reasons for placing watermarks in sound recordings, the benefits which might result and the potential hazards which need to be overcome. It covers the objectives, methodology and results of the MUSE project, one of whose tasks was the evaluation of “embedded signaling” systems. Finally, it

  14. Audio-Visual Speech Perception Is Special

    ERIC Educational Resources Information Center

    Tuomainen, J.; Andersen, T.S.; Tiippana, K.; Sams, M.

    2005-01-01

    In face-to-face conversation speech is perceived by ear and eye. We studied the prerequisites of audio-visual speech perception by using perceptually ambiguous sine wave replicas of natural speech as auditory stimuli. When the subjects were not aware that the auditory stimuli were speech, they showed only negligible integration of auditory and…

  15. Audio Engineering Society Convention Paper 8852

    E-print Network

    Reiss, Josh

    of the Audio Engineering Society. Performance optimization of GCC-PHAT for delay and polarity correction under are summed, delays can cause comb filtering and polarity inversion can result in cancellation. The GCC-PHAT the performance of the Generalized Cross Correlation with Phase Transform (GCC-PHAT) for delay and polarity

  16. Streaming Audio Over Bluetooth ACL Links

    Microsoft Academic Search

    Amrit Prit Paul Singh Bilan; Singh Bilan

    2003-01-01

    This paper describes the Bluetooth radio technology as an enabling platform to wirelessly stream audio content from hotspots to small form factor mobile devices over short ranges. The paper has been derived from my Mphil thesis based on streaming voice over Internet protocol over Bluetooth links. One can imagine a scenario of a person with a Bluetooth enabled mobile telephone

  17. AUDIO/VIDEO RECORDING RELEASE VANDERBILT UNIVERSITY

    E-print Network

    Simaan, Nabil

    tape, sound recordings, still photography, CD-ROM or any other media. 4. The right to record, reproduceAUDIO/VIDEO RECORDING RELEASE VANDERBILT UNIVERSITY IMPORTANT: BEFORE AGREEING TO HAVE YOUR CONTENT RECORDED AND SHARED ELECTRONICALLY, PLEASE VERIFY THAT YOU OWN THE COPYRIGHT OF ALL MATERIALS BEING

  18. Audio Engineering Society Convention Paper 8494

    E-print Network

    Maher, Robert C.

    modeling gunshot acoustics simply by convolving a single recording of a gunshot sound with the impulse-3780 USA rob.maher@montana.edu ABSTRACT Audio recordings of gunshots exhibit acoustical properties orientation of the firearm with respect to the recording microphone. Prior empirical studies have demonstrated

  19. Building Digital Audio Preservation Infrastructure and Workflows

    ERIC Educational Resources Information Center

    Young, Anjanette; Olivieri, Blynne; Eckler, Karl; Gerontakos, Theodore

    2010-01-01

    In 2009 the University of Washington (UW) Libraries special collections received funding for the digital preservation of its audio indigenous language holdings. The university libraries, where the authors work in various capacities, had begun digitizing image and text collections in 1997. Because of this, at the onset of the project, workflows (a…

  20. Automatic Musical Genre Classification of Audio Signals

    Microsoft Academic Search

    George Tzanetakis

    2001-01-01

    Musical genres are categorical descriptions that are used to describe music. They are c ommonly used to structure the increasing amounts of music available in digital form on the Web and are important for music information retrieval. Genre ca tegorization for audio has traditionally been performed manually. A particular musical genre is characterized by statistical properties related to the instrumentation,

  1. An ESL Audio-Script Writing Workshop

    ERIC Educational Resources Information Center

    Miller, Carla

    2012-01-01

    The roles of dialogue, collaborative writing, and authentic communication have been explored as effective strategies in second language writing classrooms. In this article, the stages of an innovative, multi-skill writing method, which embeds students' personal voices into the writing process, are explored. A 10-step ESL Audio Script Writing Model…

  2. Scribbling Machines

    NSDL National Science Digital Library

    Exploratorium

    2013-01-30

    In this activity, learners explore electronics and motion by making a Scribbling Machine, a motorized contraption that moves in unusual ways and leaves a mark to trace its path. It’s made from simple materials and is based on the idea of motion created by an offset motor. Try using harvested motors and switches from discarded toys and electronics to make your Scribbling Machine - this not only keeps costs down, but is a playful and inventive way to explore how everyday objects work. To take the activity further, you can also incorporate PicoCrickets to make your Scribbling Machine more intelligent and to explore computers.

  3. Math Machines

    NSDL National Science Digital Library

    The mission of the Math Machines organization is to "improve the quality of mathematical education, enhance the transfer of mathematical thinking into other classes, and increase students' ability to apply rigorous mathematics outside the classroom." Their website supports a National Science Foundation ATE grant-supported project designed to improve teaching in the areas of Mathematics, Science, and Technology at the high school and college levels. This improved learning results from using math, science, and technology principles to build and control various machines such as pointers and robots or "math machines", which are simple devices that provide an immediate, physical, dynamic expression to abstract mathematical equations. The website provides information links on Educational Theory, Classroom Activities, Project Workshops, Calculators & Programs, and Machine Construction Instructions for Building: Closed Circuits, Servo Motors, Controllers, Robot Boards and more. There is also contact information, an FAQ section, as well as upcoming events.

  4. Simple Machines

    NSDL National Science Digital Library

    This series of three interactive, multimedia activities introduce and demonstrate the properties of six simple machines. Specifically, the lessons show how levers, pulleys, inclined planes, screws, wheels and axles, and wedges can reduce the amount of work done by humans. After learning about the characteristics of each classification, users can try to find the simple machines that make up a lawn mower. By inspecting the mower from different angles, several simple machines are revealed and must be identified. The final activity lets users test their knowledge of the mechanics of simple machines. Following a builder through each stage of constructing a tree house, users can apply equations to determine the mechanical advantage supplied by using the tools.

  5. Machine therapy

    E-print Network

    Dobson, Kelly E. (Kelly Elizabeth), 1970-

    2007-01-01

    Machine Therapy is a new practice combining art, design, psychoanalysis, and engineering work in ways that access and reveal the vital, though often unnoticed, relevance of people's interactions and relationships with ...

  6. BOOSTED BINARY AUDIO FINGERPRINT BASED ON SPECTRAL SUBBAND MOMENTS Sungwoong Kim and Chang D. Yoo

    E-print Network

    Yoo, Chang D.

    BOOSTED BINARY AUDIO FINGERPRINT BASED ON SPECTRAL SUBBAND MOMENTS Sungwoong Kim and Chang D. Yoo@kaist.ac.kr, cdyoo@ee.kaist.ac.kr ABSTRACT An audio fingerprinting system identifies an audio based on a unique feature vector called the audio fingerprint. The performance of an audio fingerprinting system is directly

  7. Coding of audio data in halftone images

    NASA Astrophysics Data System (ADS)

    Wirnitzer, Bernhard; Dillmann, Vadim; Latorre, Javier

    A new method for coding and decoding of audio data in halftone images is described and experimentally verified. Coding (modulation) is achieved by replacing printed dots by a set of two-dimensional characteristic symbols. Decoding (demodulation) is achieved by a bank of two-dimensional matched-filters. The system comprises source and channel coding, in order to compress and decompress the audio data and in order to avoid loss of data if the image is degraded physically. Up to 9 seconds of music in CD quality or 20 seconds of speech have been stored in an area of only 10cm2. Decoding is possible with a small hand-held scanner.

  8. Audio processing technology for law enforcement

    Microsoft Academic Search

    Sharon M. Walter; Maria Cofano; Roy J. Ratley

    1999-01-01

    The Air Force Research Laboratory Multi-Sensor Exploitation Branch (AFRL\\/IFEC) has been a Department of Defense leader in research and development (R&D) in speech and audio processing for over 25 years. Their primary thrust in these R&D areas has focused on developing technology to improve the collection, handling, identification, and intelligibility of military communication signals. The National Law Enforcement and Corrections

  9. An active headrest for personal audio.

    PubMed

    Elliott, Stephen J; Jones, Matthew

    2006-05-01

    There is an increasing need for personal audio systems, which generate sounds that are clearly audible to one listener but are not audible to other listeners nearby. Of particular interest in this paper are listeners sitting in adjacent seats in aircraft or land vehicles. Although personal audio could then be achieved with headsets, it would be safer and more comfortable if loudspeakers in the seat headrests could be actively controlled to generate an acceptable level of acoustic isolation. In this paper a number of approaches to this problem are investigated, but the most successful involves a pair of loudspeakers on one side of the headrest, driven together to reproduce an audio signal for a listener in that seat and also to attenuate the pressures in the adjacent seat. The performance of this technique is investigated using simple analytic models and also with a practical implementation, tested in an anechoic chamber and a small room. It is found that significant attenuations, of between 5 and 25 dB, can be achieved in the crosstalk between the seats for frequencies up to about 2 kHz. PMID:16708929

  10. Audio processing technology for law enforcement

    NASA Astrophysics Data System (ADS)

    Walter, Sharon M.; Cofano, Maria; Ratley, Roy J.

    1999-01-01

    The Air Force Research Laboratory Multi-Sensor Exploitation Branch (AFRL/IFEC) has been a Department of Defense leader in research and development (R&D) in speech and audio processing for over 25 years. Their primary thrust in these R&D areas has focused on developing technology to improve the collection, handling, identification, and intelligibility of military communication signals. The National Law Enforcement and Corrections Technology Center for the Northeast (NLECTC-NE) is collocated with the AFRL Rome Research Sited at the Griffiss Technology park in upstate New York. The NLECTC-NE supports sixteen (16) states in the northeast sector of the United States, and is funded and supported by the National Institute of Justice (NIJ). Since the inception of the NLECTC-NE in 1995, the AFRL Rome Research Site has expanded the military applications of their expertise to address law enforcement and corrections requirements. AFRL/IFEC's speech and audio processing technology is unique and particularly appropriate for application to law enforcement requirements. It addresses the similar military need for time-critical decisions and actions, operation within noisy environments, and use by uncooperative speakers in tactical, real-time applications. Audio and speech processing technology for both application domains must also often deal with short utterance communications (less than five seconds of speech) and transmission-to-transmission channel variability.

  11. Perceptually controlled doping for audio source separation

    NASA Astrophysics Data System (ADS)

    Mahé, Gaël; Nadalin, Everton Z.; Suyama, Ricardo; Romano, Joăo MT

    2014-12-01

    The separation of an underdetermined audio mixture can be performed through sparse component analysis (SCA) that relies however on the strong hypothesis that source signals are sparse in some domain. To overcome this difficulty in the case where the original sources are available before the mixing process, the informed source separation (ISS) embeds in the mixture a watermark, which information can help a further separation. Though powerful, this technique is generally specific to a particular mixing setup and may be compromised by an additional bitrate compression stage. Thus, instead of watermarking, we propose a `doping' method that makes the time-frequency representation of each source more sparse, while preserving its audio quality. This method is based on an iterative decrease of the distance between the distribution of the signal and a target sparse distribution, under a perceptual constraint. We aim to show that the proposed approach is robust to audio coding and that the use of the sparsified signals improves the source separation, in comparison with the original sources. In this work, the analysis is made only in instantaneous mixtures and focused on voice sources.

  12. Audio scene segmentation for video with generic content

    NASA Astrophysics Data System (ADS)

    Niu, Feng; Goela, Naveen; Divakaran, Ajay; Abdel-Mottaleb, Mohamed

    2008-01-01

    In this paper, we present a content-adaptive audio texture based method to segment video into audio scenes. The audio scene is modeled as a semantically consistent chunk of audio data. Our algorithm is based on "semantic audio texture analysis." At first, we train GMM models for basic audio classes such as speech, music, etc. Then we define the semantic audio texture based on those classes. We study and present two types of scene changes, those corresponding to an overall audio texture change and those corresponding to a special "transition marker" used by the content creator, such as a short stretch of music in a sitcom or silence in dramatic content. Unlike prior work using genre specific heuristics, such as some methods presented for detecting commercials, we adaptively find out if such special transition markers are being used and if so, which of the base classes are being used as markers without any prior knowledge about the content. Our experimental results show that our proposed audio scene segmentation works well across a wide variety of broadcast content genres.

  13. Culture Machine

    NSDL National Science Digital Library

    Culture Machine is a new, refereed, electronic journal encompassing cultural studies and cultural theory. The international editorial board of the interactive journal aims to "generat[e] research in culture and theory" by promoting and publishing "the most provocative of new work." The theme of the inaugural issue is Taking Risks with the Future. Content includes articles such as Life After Death of the Text by Johan Fornas, Cultural Studies in the Clouds: Mourning for Detail by Tadeusz Slawek, and The Future States of Politics by Kenneth Surin. Culture Machine is hosted by the University of Teesside, England.

  14. Workout Machine

    NASA Technical Reports Server (NTRS)

    1995-01-01

    The Orbotron is a tri-axle exercise machine patterned after a NASA training simulator for astronaut orientation in the microgravity of space. It has three orbiting rings corresponding to roll, pitch and yaw. The user is in the middle of the inner ring with the stomach remaining in the center of all axes, eliminating dizziness. Human power starts the rings spinning, unlike the NASA air-powered system. Marketed by Fantasy Factory (formerly Orbotron, Inc.), the machine can improve aerobic capacity, strength and endurance in five to seven minute workouts.

  15. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...Account for digital audio recording devices or media. 201.28 Section 201.28 Patents...Account for digital audio recording devices or media. (a) General. This section...recording device or digital audio recording medium. (b) Definitions. For...

  16. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...functionally equivalent digital audio recording products with substantially the same...medium is a digital audio recording product-type distinguished...technical processes for digitally recording musical sounds, such as digital audio...

  17. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...functionally equivalent digital audio recording products with substantially the same...medium is a digital audio recording product-type distinguished...technical processes for digitally recording musical sounds, such as digital audio...

  18. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...functionally equivalent digital audio recording products with substantially the same...medium is a digital audio recording product-type distinguished...technical processes for digitally recording musical sounds, such as digital audio...

  19. 17 CFR 232.304 - Graphic, image, audio and video material.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 2014-04-01 false Graphic, image, audio and video material. 232.304...Submissions § 232.304 Graphic, image, audio and video material. (a) If a filer includes graphic, image, audio or video material in...

  20. 17 CFR 232.304 - Graphic, image, audio and video material.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...2011-04-01 2011-04-01 false Graphic, image, audio and video material. 232.304...Submissions § 232.304 Graphic, image, audio and video material. (a) If a filer includes graphic, image, audio or video material in...

  1. 17 CFR 232.304 - Graphic, image, audio and video material.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 2013-04-01 false Graphic, image, audio and video material. 232.304...Submissions § 232.304 Graphic, image, audio and video material. (a) If a filer includes graphic, image, audio or video material in...

  2. 17 CFR 232.304 - Graphic, image, audio and video material.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 2012-04-01 false Graphic, image, audio and video material. 232.304...Submissions § 232.304 Graphic, image, audio and video material. (a) If a filer includes graphic, image, audio or video material in...

  3. 47 CFR 73.9005 - Compliance requirements for covered demodulator products: Audio.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...BROADCAST SERVICES Digital Broadcast Television...demodulator products: Audio. Except as otherwise...shall not output the audio portions of unscreened...of marked content in digital form except in compressed audio format (such as...

  4. Decoding Machine

    NSDL National Science Digital Library

    Utah LessonPlans

    2012-10-22

    In this math lesson, learners explore variables and their uses. Learners pretend to be FBI agents and make a TOP SECRET tool that enables them to decode and find the values of hidden messages and words. Learners make their simple "decoding machines" out of paper and tape.

  5. Function Machine

    NSDL National Science Digital Library

    2011-01-01

    This Java applet allows learners to explore simple linear functions. Students determine the algebraic form of a linear equation by entering inputs into the machine and by looking for patterns in the outputs. The function rules available are: integers from -10 to 10 are either added to, subtracted from, or multiplied by the input x to yield the output y.

  6. Wacky Machines

    ERIC Educational Resources Information Center

    Fendrich, Jean

    2002-01-01

    Collectors everywhere know that local antique shops and flea markets are treasure troves just waiting to be plundered. Science teachers might take a hint from these hobbyists, for the next community yard sale might be a repository of old, quirky items that are just the things to get students thinking about simple machines. By introducing some…

  7. Leonardo's Machines

    NSDL National Science Digital Library

    Science Netlinks

    2003-03-05

    This Science NetLinks lesson will highlight some of Leonardo da Vinci's futuristic inventions, introducing the elements of machines. Through the use of student interactives, this lesson provides an interesting context in which students can begin to develop their ideas about the uniqueness of humans in the natural world.

  8. AudioScape: A Pure Data library for management of virtual environments and spatial audio

    E-print Network

    Cooperstock, Jeremy R.

    -D modelling (e.g. 3D Studio Max, Maya, Blender), and focus instead on the spatial arrangement a problem for artists who wish to use PD for intricate 3-D modelling. It does however be- come quite tedious simulators. Furthermore, the GEM library has no built-in modelling of audio in 3-D space. As a result

  9. Audio Adapted Assessment Data: Does the Addition of Audio to Written Items Modify the Item Calibration?

    ERIC Educational Resources Information Center

    Snyder, James

    2010-01-01

    This dissertation research examined the changes in item RIT calibration that occurred when adding audio to a set of currently calibrated RIT items and then placing these new items as field test items in the modified assessments on the NWEA MAP test platform. The researcher used test results from over 600 students in the Poway School District in…

  10. Elicitation of attributes for the evaluation of audio-on-audio interference.

    PubMed

    Francombe, Jon; Mason, Russell; Dewhirst, Martin; Bech, Sřren

    2014-11-01

    An experiment to determine the perceptual attributes of the experience of listening to a target audio program in the presence of an audio interferer was performed. The first stage was a free elicitation task in which a total of 572 phrases were produced. In the second stage, a consensus vocabulary procedure was used to reduce these phrases into a comprehensive set of attributes. Groups of experienced and inexperienced listeners determined nine and eight attributes, respectively. These attribute sets were combined by the listeners to produce a final set of 12 attributes: masking, calming, distraction, separation, confusion, annoyance, environment, chaotic, balance and blend, imagery, response to stimuli over time, and short-term response to stimuli. In the third stage, a simplified ranking procedure was used to select only the most useful and relevant attributes. Four attributes were selected: distraction, annoyance, balance and blend, and confusion. Ratings using these attributes were collected in the fourth stage, and a principal component analysis performed. This suggested two dimensions underlying the perception of an audio-on-audio interference situation: The first dimension was labeled "distraction" and accounted for 89% of the variance; the second dimension, accounting for 10% of the variance, was labeled "balance and blend." PMID:25373964

  11. Quantization and psychoacoustic model in audio coding in advanced audio coding

    NASA Astrophysics Data System (ADS)

    Brzuchalski, Grzegorz

    2011-10-01

    This paper presents complete optimized architecture of Advanced Audio Coder quantization with Huffman coding. After that psychoacoustic model theory is presented and few algorithms described: standard Two Loop Search, its modifications, Genetic, Just Noticeable Level Difference, Trellis-Based and its modification: Cascaded Trellis-Based Algorithm.

  12. Investigating the impact of audio instruction and audio-visual biofeedback for lung cancer radiation therapy

    NASA Astrophysics Data System (ADS)

    George, Rohini

    Lung cancer accounts for 13% of all cancers in the Unites States and is the leading cause of deaths among both men and women. The five-year survival for lung cancer patients is approximately 15%.(ACS facts & figures) Respiratory motion decreases accuracy of thoracic radiotherapy during imaging and delivery. To account for respiration, generally margins are added during radiation treatment planning, which may cause a substantial dose delivery to normal tissues and increase the normal tissue toxicity. To alleviate the above-mentioned effects of respiratory motion, several motion management techniques are available which can reduce the doses to normal tissues, thereby reducing treatment toxicity and allowing dose escalation to the tumor. This may increase the survival probability of patients who have lung cancer and are receiving radiation therapy. However the accuracy of these motion management techniques are inhibited by respiration irregularity. The rationale of this thesis was to study the improvement in regularity of respiratory motion by breathing coaching for lung cancer patients using audio instructions and audio-visual biofeedback. A total of 331 patient respiratory motion traces, each four minutes in length, were collected from 24 lung cancer patients enrolled in an IRB-approved breathing-training protocol. It was determined that audio-visual biofeedback significantly improved the regularity of respiratory motion compared to free breathing and audio instruction, thus improving the accuracy of respiratory gated radiotherapy. It was also observed that duty cycles below 30% showed insignificant reduction in residual motion while above 50% there was a sharp increase in residual motion. The reproducibility of exhale based gating was higher than that of inhale base gating. Modeling the respiratory cycles it was found that cosine and cosine 4 models had the best correlation with individual respiratory cycles. The overall respiratory motion probability distribution function could be approximated to a normal distribution function. A statistical analysis was also performed to investigate if a patient's physical, tumor or general characteristics played a role in identifying whether he/she responded positively to the coaching type---signified by a reduction in the variability of respiratory motion. The analysis demonstrated that, although there were some characteristics like disease type and dose per fraction that were significant with respect to time-independent analysis, there were no significant time trends observed for the inter-session or intra-session analysis. Based on patient feedback with the existing audio-visual biofeedback system used for the study and research performed on other feedback systems, an improved audio-visual biofeedback system was designed. It is hoped the widespread clinical implementation of audio-visual biofeedback for radiotherapy will improve the accuracy of lung cancer radiotherapy.

  13. Audio and Podcasts: The Poetry Foundation

    NSDL National Science Digital Library

    The Poetry Foundation has a myriad of wonderful resources for the lover of quatrains, hyperbole, or iambic pentameter. This corner of its site houses audio and podcasts in one convenient locale. The Poetry Off the Shelf section contains recent conversations with poets Edward Hirsch, Nathaniel Mackey, Robert Duncan, and others. Moving on, the Poem of the Day features a number of lovely works, such as "Horseflies" and "I go back to May 1937.â?ť There are six other sections here, including the Poetry Radio Project and Avant-garde All the Time. Additionally, users can sign up to receive updates when new works are added to the site.

  14. A Generalized Deletion Machine

    E-print Network

    Indranil Chakrabarty; Satyabrata Adhikari

    2005-11-22

    In this work we prescribe a more generalized quantum-deleting machine (input state dependent). The fidelity of deletion is dependent on some machine parameters such that on alteration of machine parameters we get back to standard deleting machines. We also carried out a various comparative study of various kinds of quantum deleting machines. We also plotted graphs, making a comparative study of fidelity of deletion of the deletion machines, obtained as particular cases on changing the machine parameters of our machine.

  15. Indeterminate Adaptive Digital Audio for Games on Mobiles

    E-print Network

    Paris-Sud XI, Université de

    is exploding, creating opportunities for sound designers and content providers. With the mobile phone firmly audio, animated digital signal processing (DSP) parameters are the main ingredients for building of mobiles, opening the way to new kind of audio applications. DJ-style applications are now possible

  16. AUDIO FINGERPRINT IDENTIFICATION BY APPROXIMATE STRING Jerome Lebosse

    E-print Network

    Paris-Sud XI, Université de

    AUDIO FINGERPRINT IDENTIFICATION BY APPROXIMATE STRING MATCHING Jerome Lebosse France Telecom R boulevard du Marchal Juin 14050 Caen, FRANCE luc.brun@greyc.ensicaen.fr ABSTRACT An audio fingerprint first presents a fingerprint extraction algorithm. The identification task is performed by a new

  17. DESIGN GUIDELINES FOR AUDIO PRESENTATION OF GRAPHS AND TABLES

    Microsoft Academic Search

    Lorna M. Brown; Stephen A. Brewster; Ramesh Ramloll; Mike Burton; Beate Riedel

    2003-01-01

    General Line Graph Sonification Guidelines Audio can be used to make visualisations accessible to blind and visually impaired people. The MultiVis Project has carried out research into suitable methods for presenting graphs and tables to blind people through the use of both speech and non- speech audio. This paper presents guidelines extracted from this research. These guidelines will enable designers

  18. Jitter-free Audio Playout over Best Effort Packet Networks

    Microsoft Academic Search

    Aman Kansal; Abhay Karandikar

    The aim of this research is to explore important issues in play- out of audio over best effort audio networks and the improvements that can be made at the upper layers without changing the underlying network. This paper starts with a review of existing methods, the experiments conducted based on them and comments on their performance. The point of departure

  19. An adaptive ARQ timeout approach for audio streaming over Bluetooth

    Microsoft Academic Search

    Ling-Jyh Chen; Rohit Kapoor; Sewook Jung; M. Y. Sanadidi; Mario Gerla

    2009-01-01

    In this paper we study the application of audio streaming over Bluetooth and propose an enhancement to the Bluetooth link layer ARQ mechanism to compensate for channel degradation and to better support audio streaming. Specifically, our scheme adaptively sets the ARQ timeout value based on current channel conditions. We show through simulation and testbed experiments that the adaptive ARQ improves

  20. Representation of sound fields for audio recording and reproduction

    E-print Network

    Paris-Sud XI, Université de

    Representation of sound fields for audio recording and reproduction F. M. Fazia , M. Noisternigb of sound fields for audio recording and reproduction F. M. Fazia , M. Noisternigb and O. Warusfelb and loudspeaker arrays are often used for the recording and reproduction of a given sound field. A number

  1. Evaluation Methods for Musical Audio Beat Tracking Algorithms

    E-print Network

    Plumbley, Mark

    Evaluation Methods for Musical Audio Beat Tracking Algorithms MATTHEW E. P. DAVIES, NORBERTO DEGARA AND MARK D. PLUMBLEY Technical Report C4DM-TR-09-06 8 October 2009 #12;Evaluation Methods for Musical Audio a review of existing evaluation models and, given their strengths and weaknesses, we propose a new method

  2. THE EFFECT OF SPEECH AND AUDIO COMPRESSION ON SPEECH RECOGNITION

    E-print Network

    Boyer, Edmond

    THE EFFECT OF SPEECH AND AUDIO COMPRESSION ON SPEECH RECOGNITION PERFORMANCE L. Besacier, C.Besacier@imag.fr Abstract - This paper proposes an in-depth look at the influence of different speech and audio codecs on the performance of our continuous speech recognition engine. GSM full rate, G711, G723.1 and MPEG coders

  3. Content-Based Retrieval of Music and Audio

    Microsoft Academic Search

    Jonathan T. Foote

    1997-01-01

    Though many systems exist for content-based retrieval of images, little work has been done on the audio portionof the multimedia stream. This paper presents a system to retrieve audio documents by acoustic similarity. Thesimilarity measure is based on statistics derived from a supervised vector quantizer, rather than matching simple pitchor spectral characteristics. The system is thus able to learn distinguishing

  4. Visualizing music and audio using self-similarity

    Microsoft Academic Search

    Jonathan Foote

    1999-01-01

    This paper presents a novel approach to visualizing the time structure of music and audio. The acoustic similarity between any two instants of an audio recording is displayed in a 2D representation, allowing identification of structural and rhythmic characteristics. Examples are presented for classical and popular music. Applications include content-based analysis and segmentation, as well as tempo and structure extraction.

  5. A Case Study on Audio Feedback with Geography Undergraduates

    ERIC Educational Resources Information Center

    Rodway-Dyer, Sue; Knight, Jasper; Dunne, Elizabeth

    2011-01-01

    Several small-scale studies have suggested that audio feedback can help students to reflect on their learning and to develop deep learning approaches that are associated with higher attainment in assessments. For this case study, Geography undergraduates were given audio feedback on a written essay assignment, alongside traditional written…

  6. Beyond Podcasting: Creative Approaches to Designing Educational Audio

    ERIC Educational Resources Information Center

    Middleton, Andrew

    2009-01-01

    This paper discusses a university-wide pilot designed to encourage academics to creatively explore learner-centred applications for digital audio. Participation in the pilot was diverse in terms of technical competence, confidence and contextual requirements and there was little prior experience of working with digital audio. Many innovative…

  7. A Multi-User Shared Hardware Audio Response System.

    ERIC Educational Resources Information Center

    Voth, Brian

    A flexible surface disc device serves as the basis for the design of a computer operated multi-user shared hardware audio response system. The device employs a slow moving flexible, air supported surface in contact with a large number of heads. Relatively instantaneous distribution of audio from any portion of the disc to the users in accomplished…

  8. Effect of Audio vs. Video on Aural Discrimination of Vowels

    ERIC Educational Resources Information Center

    McCrocklin, Shannon

    2012-01-01

    Despite the growing use of media in the classroom, the effects of using of audio versus video in pronunciation teaching has been largely ignored. To analyze the impact of the use of audio or video training on aural discrimination of vowels, 61 participants (all students at a large American university) took a pre-test followed by two training…

  9. Procedural audio modeling for particle-based environmental effects

    E-print Network

    -based environmental effects. A map- ping between graphics and sound parameters allows tightly-coupled audio the physics of sound sources, and signal models aiming at reproducing perceptual effects independentlyProcedural audio modeling for particle-based environmental effects Charles Verron, George Drettakis

  10. Understanding the Impact of Abstracted Audio Preview of SMS

    E-print Network

    of audio-enhanced SMS affects the read- ing and writing behavior of users. Our work is motivated and writing behavior of users. The first hy- pothesis is that users will adapt when to read/check the SMS the use of audio preview affects their behavior while writing and checking text messages, and present

  11. Exposing audio data to the web: an API and prototype

    Microsoft Academic Search

    David Humphrey; Corban Brook; Alistair MacDonald

    2010-01-01

    The HTML5 specification introduces the audio and video media elements, and with them the opportunity to change the way media is integrated on the web. The current HTML5 media API provides ways to play and get limited information about audio and video, but no way to programatically access or create such media. In this paper we present an enhanced API

  12. Drilling Machines: Vocational Machine Shop.

    ERIC Educational Resources Information Center

    Thomas, John C.

    The lessons and supportive information in this field tested instructional block provide a guide for teachers in developing a machine shop course of study in drilling. The document is comprised of operation sheets, information sheets, and transparency masters for 23 lessons. Each lesson plan includes a performance objective, material and tools,…

  13. State-Machine Replication

    E-print Network

    Venkataramani, Arun

    State-Machine Replication #12;The Problem Clients Server #12;The Problem Clients Server #12;The (state machine) #12;The Solution 1. Make server deterministic (state machine) State machine #12;The Solution 1. Make server deterministic (state machine) 2. Replicate server State machines #12;The Solution 1

  14. Simple Machines

    NSDL National Science Digital Library

    Wakild, Terri

    The goals for this introduction activity to Simple Machines are.: - Generate scientific questions about the world based on observation - Design and conduct scientific investigations - Use tools and equipment appropriate to scientific investigations - Use sources of information in support of scientific investigation - Write and follow procedures in the form of step-by-step instructions, formulas, flow diagram, and sketches - Show how common themes of science, mathematics, and technology apply in real-world contexts - Recognize the contributions made in science by cultures and individuals of diverse backgrounds - Design strategies for moving objects by application of forces, including the use of simple machines MERC Online Reviewer Comments: Good computer activities for under-represented students who want to pursue manufacturing education. Distance Learning is a plus.

  15. Living Machines

    Microsoft Academic Search

    Yung-Tse Hung; Joseph F. Hawumba; Lawrence K. Wang

    \\u000a Ecological studies have revealed that nature has an in-built system to restore itself, thereby sustaining its continuity.\\u000a In other words, natural ecosystems can act as “Living Machines” in keeping the ecosystems habitable. The biological communities\\u000a – microbes, plants, and animals – serve as the driving force of several living technological innovations – constructed wetlands,\\u000a Lake Restores, Eco-Restorers, and Reedbeds. These

  16. Horatio Audio-Describes Shakespeare's "Hamlet": Blind and Low-Vision Theatre-Goers Evaluate an Unconventional Audio Description Strategy

    ERIC Educational Resources Information Center

    Udo, J. P.; Acevedo, B.; Fels, D. I.

    2010-01-01

    Audio description (AD) has been introduced as one solution for providing people who are blind or have low vision with access to live theatre, film and television content. However, there is little research to inform the process, user preferences and presentation style. We present a study of a single live audio-described performance of Hart House…

  17. From Edison toFrom Edison to ViterbiViterbi Audio Players and Recorders:Audio Players and Recorders

    E-print Network

    Southern California, University of

    11, 1847, in Milan, Ohio. · In 1877 Thomas Edison created a playable recording. · He calledFrom Edison toFrom Edison to ViterbiViterbi Audio Players and Recorders:Audio Players and Recorders: JACK KEIL WOLF February 28, 2008 Viterbi Lecture USC #12;B.E. (Before Edison) · Edouard-Leon Scott de

  18. Audio-visual biofeedback for respiratory-gated radiotherapy: Impact of audio instruction and audio-visual biofeedback on respiratory-gated radiotherapy

    SciTech Connect

    George, Rohini [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States); Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA (United States); Chung, Theodore D. [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States); Vedam, Sastry S. [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States); Ramakrishnan, Viswanathan [Department of Biostatistics, Virginia Commonwealth University, Richmond, VA (United States); Mohan, Radhe [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Weiss, Elisabeth [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States); Department of Radiation Oncology, Georg-August-Universitaet, Goettingen (Germany); Keall, Paul J. [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States)]. E-mail: pjkeall@vcu.edu

    2006-07-01

    Purpose: Respiratory gating is a commercially available technology for reducing the deleterious effects of motion during imaging and treatment. The efficacy of gating is dependent on the reproducibility within and between respiratory cycles during imaging and treatment. The aim of this study was to determine whether audio-visual biofeedback can improve respiratory reproducibility by decreasing residual motion and therefore increasing the accuracy of gated radiotherapy. Methods and Materials: A total of 331 respiratory traces were collected from 24 lung cancer patients. The protocol consisted of five breathing training sessions spaced about a week apart. Within each session the patients initially breathed without any instruction (free breathing), with audio instructions and with audio-visual biofeedback. Residual motion was quantified by the standard deviation of the respiratory signal within the gating window. Results: Audio-visual biofeedback significantly reduced residual motion compared with free breathing and audio instruction. Displacement-based gating has lower residual motion than phase-based gating. Little reduction in residual motion was found for duty cycles less than 30%; for duty cycles above 50% there was a sharp increase in residual motion. Conclusions: The efficiency and reproducibility of gating can be improved by: incorporating audio-visual biofeedback, using a 30-50% duty cycle, gating during exhalation, and using displacement-based gating.

  19. Learning about Simple Machines

    NSDL National Science Digital Library

    Mrs. Keller

    2010-01-17

    This activity is designed to learn about simple machines and to have fun doing so! First, use this website to learn backround information on the basics of simple machines. Try the quiz! Simple Machines Learning Site Next, play a game that tests your ability to identify simple machines.... Edheads: Simple Machines Finally, view this video to see how students your age used applied simple machines to do a cool task... Building Simple Machines: A Glass of Milk, Please ...

  20. A Framework for Audio Analysis based on Classification and Temporal Segmentation

    Microsoft Academic Search

    George Tzanetakis; Perry R. Cook

    1999-01-01

    Abstract Existing audio tools handle the increasing amount of computer audio data inadequately. The typical tape-recorder paradigm for audio interfaces is inflexible and time consuming, especially for large data sets. On the other hand, completely automatic audio analysis and annotation is impossible using current techniques. Alternative solutions are semi-automatic user interfaces that let users interact with sound in flexible ways

  1. Digital audio forensics: a first practical evaluation on microphone and environment classification

    Microsoft Academic Search

    Christian Kraetzer; Andrea Oermann; Jana Dittmann; Andreas Lang

    2007-01-01

    In this paper a first approach for digital media forensics is presented to determine the used microphones and the envi- ronments of recorded digital audio samples by using known audio steganalysis features. Our first evaluation is based on a limited exemplary test set of 10 different audio reference signals recorded as mono audio data by four microphones in 10 different

  2. Noninvertible watermarking methods for MPEG-encoded audio

    NASA Astrophysics Data System (ADS)

    Qiao, Lintian; Nahrstedt, Klara

    1999-04-01

    Nowadays the multimedia technology in distributed environments becomes realistic and the multimedia copyright protection issue becomes more and more important. Various digital watermarking techniques have been proposed in recent years as the methods to protect the copyright of multimedia data. Although, conceptually, these techniques can be easily extended for protecting digital audio data, it is challenging to apply these techniques to MPEG Audio streams because we need to design the watermarking schemes working directly in the compressed data domain. In this paper, we present watermarking methods which will embed the watermark directly into the MPEG audio bit streams rather than going through expensive decoding/encoding process in order to apply watermarking schemes in uncompressed data domain. Among the two presented schemes, one embeds the watermark into the Scale Factors of the MPEG audio streams and another one embeds the watermark into the MPEG encoded samples. Our experimental results show that both methods perform well and the distortion could be controlled at the minimal level. While we use MPEG Audio Layer II streams in our experimental tests, the proposed schemes can be applied to MPEG Audio Layer I and III. Furthermore, by enforcing creation of the watermark through a standard encryption function such as DES, the proposed schemes will be successful in resolving rightful ownership of watermarked MPEG audio.

  3. Machine Design

    NSDL National Science Digital Library

    This website, the homepage of Machine Design.com, contains resources on a variety of information for engineers and technicians related to devices, components, design applications, products, and systems in the manufacturing technology sector. The site also features a CAD library, eBooks, audiovisual aids, webinars, whitepapers and a reference center. Some of the resources require a free login. The page offers an RSS feed to keep users up to date on new resources. A free login may be required to access some of these items.

  4. Function Machine

    NSDL National Science Digital Library

    2012-07-19

    This Java activity for the interactive white board (free access with registration) provides learners an opportunity to explore number functions and to predict outcomes. Teachers set the desired function from the drop-down list (double it, halve it, add 1, subtract 1, add 10, or subtract 10) and choose the start number from 1-20. Students are asked to predict the outcome before asking the machine to go. There is an option to hide the function so the teacher can ask students to work out what operation is being used to get from the starting number to the number generated.

  5. Illinois State Museum: Audio-Video Barn

    NSDL National Science Digital Library

    If you want to explore the world of agriculture in Illinois, you should make a beeline for this interesting and thoughtful website. The Audio-Video Barn is a collaborative project designed by the Illinois State Museum, working in partnership with other local institutions and with funding from the Institute of Museum and Library Services. The project is a logical outgrowth of the Museum's "longstanding interest in human interactions with the natural world." So step right into the "barn" and listen to oral history interviews from the 1950s to the 1990s, locate interviews from a state-wide map, or look over the "User's Guide" for navigation tips. Visitors shouldn't miss the "Sit-Down Interviews" area, as they can just scan through photos and select an interviewee who looks interesting. To get started, visitors should check out some of the "Stories from the Barn", such as "My Father the Great Reader" and "Making Rails".

  6. The Fields Institute: Lecture Audio and Slides

    NSDL National Science Digital Library

    The Fields Institute for Research in Mathematical Sciences aims to "enhance mathematical activity in Canada by bringing together mathematicians from Canada and abroad, and by promoting contact and collaboration between professional mathematicians and the increasing numbers of users of mathematics." They support research in pure and applied mathematics, statistics and computer science, as well as collaborative projects between mathematicians and those applying mathematics in areas such as engineering, the physical and biological sciences, medicine, economics and finance, telecommunications and information systems. They offer this website with audio files and slides from events and lectures at the Fields Institute. The lectures, given by scientists from around the world, address such topics as Quantitative Finance, String Theory, Homological Algebra, Combinatorics, and much more. The files are organized by academic year and series title. In cases where the files are not available to download, they provide information on how to obtain the files.

  7. Philadelphia Museum of Art: Audio Tours

    NSDL National Science Digital Library

    Going to the Philadelphia Museum of Art and wandering around can be a great experience. But what if there were also some audio podcasts to enhance this experience? This site provides visitors access to short podcasts that can be used while in the museum, or just while sitting in front of one's computer screen. The podcasts are organized into thematic categories that include "Arms and Armor", "Modern and Contemporary Art", and "Constantine Tapestries". Many of the podcasts include digitized images of the object in question, along with information about its provenance and country of origin. It's easy to see how an assemblage of these podcasts could be organized for use by an art history class or someone who's just developing an interest about a certain aspect of art.

  8. A direct broadcast satellite-audio experiment

    NASA Technical Reports Server (NTRS)

    Vaisnys, Arvydas; Abbe, Brian; Motamedi, Masoud

    1992-01-01

    System studies have been carried out over the past three years at the Jet Propulsion Laboratory (JPL) on digital audio broadcasting (DAB) via satellite. The thrust of the work to date has been on designing power and bandwidth efficient systems capable of providing reliable service to fixed, mobile, and portable radios. It is very difficult to predict performance in an environment which produces random periods of signal blockage, such as encountered in mobile reception where a vehicle can quickly move from one type of terrain to another. For this reason, some signal blockage mitigation techniques were built into an experimental DAB system and a satellite experiment was conducted to obtain both qualitative and quantitative measures of performance in a range of reception environments. This paper presents results from the experiment and some conclusions on the effectiveness of these blockage mitigation techniques.

  9. Noise-Canceling Helmet Audio System

    NASA Technical Reports Server (NTRS)

    Seibert, Marc A.; Culotta, Anthony J.

    2007-01-01

    A prototype helmet audio system has been developed to improve voice communication for the wearer in a noisy environment. The system was originally intended to be used in a space suit, wherein noise generated by airflow of the spacesuit life-support system can make it difficult for remote listeners to understand the astronaut s speech and can interfere with the astronaut s attempt to issue vocal commands to a voice-controlled robot. The system could be adapted to terrestrial use in helmets of protective suits that are typically worn in noisy settings: examples include biohazard, fire, rescue, and diving suits. The system (see figure) includes an array of microphones and small loudspeakers mounted at fixed positions in a helmet, amplifiers and signal-routing circuitry, and a commercial digital signal processor (DSP). Notwithstanding the fixed positions of the microphones and loudspeakers, the system can accommodate itself to any normal motion of the wearer s head within the helmet. The system operates in conjunction with a radio transceiver. An audio signal arriving via the transceiver intended to be heard by the wearer is adjusted in volume and otherwise conditioned and sent to the loudspeakers. The wearer s speech is collected by the microphones, the outputs of which are logically combined (phased) so as to form a microphone- array directional sensitivity pattern that discriminates in favor of sounds coming from vicinity of the wearer s mouth and against sounds coming from elsewhere. In the DSP, digitized samples of the microphone outputs are processed to filter out airflow noise and to eliminate feedback from the loudspeakers to the microphones. The resulting conditioned version of the wearer s speech signal is sent to the transceiver.

  10. Joint Application of Audio Spectral Envelope and Tonality Index in E-Asthma Monitoring System.

    PubMed

    Wisniewski, Marcin; Zielinski, Tomasz

    2014-08-26

    This paper presents in detail a recently introduced highly efficient method for automatic detection of asthmatic wheezing in breathing sounds. The fluctuation in the Audio Spectral Envelope (ASE) from the MPEG-7 standard and the value of the Tonality Index (TI) from the MPEG-2 Audio specification are jointly used as discriminative features for wheezy sounds, while the Support Vector Machine (SVM) with a polynomial kernel serves as a classifier. The advantages of the proposed approach are described in the paper (e.g. detecting weak wheezes, very good ROC characteristics, independence from noise color). Since the method is not computationally complex it is suitable for remote asthma monitoring using mobile devices (personal medical assistants). The main contribution of this paper consists of presenting all the implementation details concerning the proposed approach for the first time, i.e. the pseudo-code of the method, and adjusting the values of the ASE and TI parameters after which only one (not two) FFT is required for analysis of a next overlapping signal fragment. The efficiency of the method has also been additionally confirmed by the AdaBoost classifier with a built-in mechanism to feature ranking, as well as a previously performed minimal-redundancy-maximal-relevance (mRMR) test. PMID:25167561

  11. Course info Machine Learning

    E-print Network

    Shi, Qinfeng "Javen"

    Course info Machine Learning Real life problems Lecture 1: Machine Learning Problem Qinfeng (Javen) Shi 28 July 2014 Intro. to Stats. Machine Learning COMP SCI 4401/7401 Qinfeng (Javen) Shi Lecture 1: Machine Learning Problem #12;Course info Machine Learning Real life problems Table of Contents I 1 Course

  12. Point-to-Multipoint Stereo Audio Transmitting System Based on Bluetooth

    Microsoft Academic Search

    He Jian; Huang Zhang-qin; Hou Yi-bin; Dong Yu-min

    2010-01-01

    According to the problem of the stereo audio transmission based on Bluetooth, the Bluetooth Advanced Audio Distribution Protocol (A2DP) and Bluetooth audio codec technology is introduced firstly, and the strategy for the Bluetooth point-to-multipoint audio transmission is designed. Meanwhile, the hardware for the audio sender and receiver based on the single-chip Bluetooth proposal are designed, and the data processing flow

  13. The power of digital audio in interactive instruction: An unexploited medium

    SciTech Connect

    Pratt, J.; Trainor, M.

    1989-01-01

    Widespread use of audio in computer-based training (CBT) occurred with the advent of the interactive videodisc technology. This paper discusses the alternative of digital audio, which, unlike videodisc audio, enables one to rapidly revise the audio used in the CBT and which may be used in nonvideo CBT applications as well. We also discuss techniques used in audio script writing, editing, and production. Results from evaluations indicate a high degree of user satisfaction. 4 refs.

  14. Applying Spatial Audio to Human Interfaces: 25 Years of NASA Experience

    NASA Technical Reports Server (NTRS)

    Begault, Durand R.; Wenzel, Elizabeth M.; Godfrey, Martine; Miller, Joel D.; Anderson, Mark R.

    2010-01-01

    From the perspective of human factors engineering, the inclusion of spatial audio within a human-machine interface is advantageous from several perspectives. Demonstrated benefits include the ability to monitor multiple streams of speech and non-speech warning tones using a cocktail party advantage, and for aurally-guided visual search. Other potential benefits include the spatial coordination and interaction of multimodal events, and evaluation of new communication technologies and alerting systems using virtual simulation. Many of these technologies were developed at NASA Ames Research Center, beginning in 1985. This paper reviews examples and describes the advantages of spatial sound in NASA-related technologies, including space operations, aeronautics, and search and rescue. The work has involved hardware and software development as well as basic and applied research.

  15. HMM-based Speech Synthesis from Audio Book Data 

    E-print Network

    Haag, Kathrin

    In contrast to hand-crafted speech databases, which contain short out-of-context sentences in fairly unemphatic speech style, audio books contain rich prosody including intonation contours, pitch accents and phrasing patterns, which is a good pre...

  16. Companding techniques for high dynamic range audio CODEC receiver path

    E-print Network

    Ma, Yunjie, M. Eng. Massachusetts Institute of Technology

    2009-01-01

    In this thesis, an audio CODEC receiver path has been modified by the addition of companding techniques. Companding compresses the input signal and expands the output signal according to the input power strength such that ...

  17. Audio CAPTCHA for SIP-Based VoIP

    NASA Astrophysics Data System (ADS)

    Soupionis, Yannis; Tountas, George; Gritzalis, Dimitris

    Voice over IP (VoIP) introduces new ways of communication, while utilizing existing data networks to provide inexpensive voice communications worldwide as a promising alternative to the traditional PSTN telephony. SPam over Internet Telephony (SPIT) is one potential source of future annoyance in VoIP. A common way to launch a SPIT attack is the use of an automated procedure (bot), which generates calls and produces audio advertisements. In this paper, our goal is to design appropriate CAPTCHA to fight such bots. We focus on and develop audio CAPTCHA, as the audio format is more suitable for VoIP environments and we implement it in a SIP-based VoIP environment. Furthermore, we suggest and evaluate the specific attributes that audio CAPTCHA should incorporate in order to be effective, and test it against an open source bot implementation.

  18. Audio prompts and demonstration video for the activity classification study

    E-print Network

    Van Hees, Vincent

    2014-07-02

    Audio Prompts and Protocol Instruction video for the Physical Activity Annotation Study as referenced in Van Hees V. et. al. "Impact of study design on development and evaluation of an activity-type, classifier". Journal of Applied Physiology. 114...

  19. Packet Audio Playout Delay Adjustment: Performance Bounds and Algorithms \\Lambda

    E-print Network

    Massachusetts at Amherst, University of

    Kurose, and Don Towsley Department of Computer Science University of Massachusetts at Amherst Amherst, MA 01003 fsbmoon,kurose,towsleyg@cs.umass.edu Abstract In packet audio applications, packets are buffered

  20. centre for digital music Blind Audio Source Separation

    E-print Network

    Plumbley, Mark

    for digital music Blind Audio Source Separation EMMANUEL VINCENT, MARIA G. JAFARI, SAMER A. ABDALLAH, MARK D Separation Emmanuel Vincent, Maria G. Jafari, Samer A. Abdallah, Mark D. Plumbley and Mike E. Davies Centre

  1. 47 CFR 87.483 - Audio visual warning systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...audio visual warning system (AVWS) is a radar-based obstacle avoidance system...obstructions exist. The continuously operating radar calculates the location, direction...obstacle. (a) Radiodetermination (radar) frequencies. Frequencies...

  2. Mind & Machine

    NSDL National Science Digital Library

    Dunn, Ashley.

    Mind & Machine is a weekly column provided by Ashley Dunn for the New York Times Cybertimes that discusses topics related to computing, technology, and the Internet. Recent columns have addressed the topics of the development of Internet telephony, possible futures of user interfaces, the history of technology and standards, and the Internet as a vehicle for community. Articles are well written, opinionated, and thought provoking. Mr. Dunn is a free lance writer who has written for such papers as the New York Times, the Los Angeles Times, the Seattle Post-Intelligencer, and the South China Morning Post. Note that the site is available only upon registration and is free of charge only in the US.

  3. Socially guided machine learning

    E-print Network

    Thomaz, Andrea Lockerd

    2006-01-01

    Social interaction will be key to enabling robots and machines in general to learn new tasks from ordinary people (not experts in robotics or machine learning). Everyday people who need to teach their machines new things ...

  4. Audio watermarking method robust against time- and frequency-fluctuation

    Microsoft Academic Search

    Ryuki Tachibana; Shuichi Shimizu; Taiga Nakamura; Seiji Kobayashi

    2001-01-01

    In this paper, we describe an audio watermarking algorithm that can embed a multiple-bit message which is robust against wow-and-flutter, cropping, noise-addition, pitch-shift, and audio compressions such as MP3. The algorithm calculates and manipulates the magnitudes of segmented areas in the time-frequency plane of the content using short-term DFTs. The detection algorithm correlates the magnitudes with a pseudo-random array that

  5. Frequency of plumbing fixture use through audio sampling

    E-print Network

    Shea, Kevin Bruce

    2013-02-22

    FREQUENCY OF PLUMBING FIXTURE USE THROUGH AUDIO SAMPLING A Senior Honors Thesis By KEVIN BRUCE SHEA Submitted to the Office of Honors Programs & Academic Scholarships Texas ARM University In partial fulfillment of the requirements... of the UNIVERSITY UNDERGRADUATE RESEARCH FELLOWS April 2000 Group. Physical Sciences FREQUENCY OF PLUMBING FIXTURE USE THROUGH AUDIO SAMPLING A Senior Honors Thesis By KEVIN BRUCE SHEA Submitted to the Office of Honors Programs & Academic Scholarships...

  6. User Location Estimation Based on Stereo Audio-Vision

    Microsoft Academic Search

    Sang-Hyeon Jin; Dong-Ju Kim; Chee-Hyun Park; Kwang-Seok Hong

    2009-01-01

    Two methods have been used to track user location: stereo audio-based and the stereo vision-based methods. The stereo audio-based method is sensitive to noise, its performance deteriorates readily. The stereo vision-based method has problems in estimating location when the surrounding environment is restricted or the user is out of camera sight. In this paper, we compensate for the problems of

  7. A Study of Wireless Compressed Digital audio Transmission

    Microsoft Academic Search

    Andreas Floros; Marios Koutroubas; Nicolas-Alexander Tatlas; John Mourjopoulos

    2002-01-01

    The paper examines the transmission of audio coded according to the MPEG-I Layer III standard over the Bluetooth Wireless Digital protocol. The study presents the effect of the transmission parameters (such as distance, packet type and length) on the achieved wireless bit rate. The paper also analyzes several aspects concerning the real-time implementation of complete Bluetooth-based audio playback setups and

  8. Frank Baumgarte Application of a physiological ear model to irrelevance reduction in audio coding AES 17 th International conference on High Quality Audio Coding 1

    E-print Network

    Frank Baumgarte Application of a physiological ear model to irrelevance reduction in audio coding AES 17 th International conference on High Quality Audio Coding 1 APPLICATION OF A PHYSIOLOGICAL EAR@tnt.uni--hannover.de A previously published physiological ear model is applied as perceptual model to an audio coder complying

  9. Simple Machines - Mechanical Advantage

    NSDL National Science Digital Library

    2007-01-01

    This video uses working simple machines to demonstrate how to calculate mechanical advantage. Suitable for any school program involving simple machines. Demonstrates pulley systems including a chain block.

  10. Parallel-machine rescheduling with machine disruptions

    Microsoft Academic Search

    Meral Azizoglu; Oguzhan Alagöz

    2005-01-01

    In this study we consider a rescheduling problem on identical parallel machines. The rescheduling is undertaken because of a period of unavailability on one of the machines. We consider the total flow time as an efficiency measure and stability is gauged in terms of the number of jobs processed on different machines in the original and new schedules. We show

  11. DC Machine

    NSDL National Science Digital Library

    Riaz, Mahmoud

    The effect of the commutator is to produce a fixed spatial distribution of current directions in the armature conductors (shown as blue & green circles) independent of shaft rotation. The field created by these currents (armature reaction) is vertically directed along the quadrature axis. The field established by the excitation of the stator poles is directed along the horizontal direct axis. This package presents computer models of electric machines based on the space vector formulation leading to the assessment of the dynamic performance of open- and closed-loopac and dc drive systems. The Simulink/Matlab implementation is adopted because of its inherent integration of vectorized system representations in block diagram form, of numerical analysis methods, of graphical portrayal of time evolutions of signals combined with the simple realization of the functionality of controllers and power electronic excitations. The development of Simulink models of drive assemblies is a relatively simple task consisting of combining input-output block representation of the various components making up the system; these blocks can readily be reused (utilizing standard copy-and-paste techniques) to modify the system components or the configuration of the system. This approach provides a powerful design tool because of the ease of observing the effects of parameters modifications and of differing system configurations and control strategies.

  12. Personal audio with a planar bright zone.

    PubMed

    Coleman, Philip; Jackson, Philip J B; Olik, Marek; Pedersen, Jan Abildgaard

    2014-10-01

    Reproduction of multiple sound zones, in which personal audio programs may be consumed without the need for headphones, is an active topic in acoustical signal processing. Many approaches to sound zone reproduction do not consider control of the bright zone phase, which may lead to self-cancellation problems if the loudspeakers surround the zones. Conversely, control of the phase in a least-squares sense comes at a cost of decreased level difference between the zones and frequency range of cancellation. Single-zone approaches have considered plane wave reproduction by focusing the sound energy in to a point in the wavenumber domain. In this article, a planar bright zone is reproduced via planarity control, which constrains the bright zone energy to impinge from a narrow range of angles via projection in to a spatial domain. Simulation results using a circular array surrounding two zones show the method to produce superior contrast to the least-squares approach, and superior planarity to the contrast maximization approach. Practical performance measurements obtained in an acoustically treated room verify the conclusions drawn under free-field conditions. PMID:25324075

  13. Digital Audio Radio Broadcast Systems Laboratory Testing Nearly Complete

    NASA Technical Reports Server (NTRS)

    2005-01-01

    Radio history continues to be made at the NASA Lewis Research Center with the completion of phase one of the digital audio radio (DAR) testing conducted by the Consumer Electronics Group of the Electronic Industries Association. This satellite, satellite/terrestrial, and terrestrial digital technology will open up new audio broadcasting opportunities both domestically and worldwide. It will significantly improve the current quality of amplitude-modulated/frequency-modulated (AM/FM) radio with a new digitally modulated radio signal and will introduce true compact-disc-quality (CD-quality) sound for the first time. Lewis is hosting the laboratory testing of seven proposed digital audio radio systems and modes. Two of the proposed systems operate in two modes each, making a total of nine systems being tested. The nine systems are divided into the following types of transmission: in-band on-channel (IBOC), in-band adjacent-channel (IBAC), and new bands. The laboratory testing was conducted by the Consumer Electronics Group of the Electronic Industries Association. Subjective assessments of the audio recordings for each of the nine systems was conducted by the Communications Research Center in Ottawa, Canada, under contract to the Electronic Industries Association. The Communications Research Center has the only CCIR-qualified (Consultative Committee for International Radio) audio testing facility in North America. The main goals of the U.S. testing process are to (1) provide technical data to the Federal Communication Commission (FCC) so that it can establish a standard for digital audio receivers and transmitters and (2) provide the receiver and transmitter industries with the proper standards upon which to build their equipment. In addition, the data will be forwarded to the International Telecommunications Union to help in the establishment of international standards for digital audio receivers and transmitters, thus allowing U.S. manufacturers to compete in the world market.

  14. DRILLING MACHINES GENERAL INFORMATION

    E-print Network

    Gellman, Andrew J.

    or angled drilled. The base of the drilling machine supports the entire machine and when bolted to the floor parts. Follow the manufacturer's manual for proper lubrication methods. Clean each machine after useTC 9-524 Chapter 4 DRILLING MACHINES GENERAL INFORMATION PURPOSE This chapter contains basic

  15. Iowa Virtual Literacy Protocol: A Pre-Experimental Design Using Kurzweil 3000 Text-to-Speech Software with Incarcerated Adult Learners

    ERIC Educational Resources Information Center

    McCulley, Yvette K.

    2012-01-01

    The problem: The increasingly competitive global economy demands literate, educated workers. Both men and women experience the effects of education on employment rates and income. Racial and ethnic minorities, English language learners, and especially those with prison records are most deeply affected by the economic consequences of dropping out…

  16. The Effect of Embedded Text-to-Speech and Vocabulary eBook Scaffolds on the Comprehension of Students with Reading Disabilities

    ERIC Educational Resources Information Center

    Gonzalez, Michelle

    2014-01-01

    Limited research exists concerning the effect of interactive electronic texts or eBooks on the reading comprehension of students with reading disabilities. The purpose of this study was to determine if there was a significant difference in oral retelling and comprehension performance on multiple-choice questions when 17 students with reading…

  17. Talker variability in audio-visual speech perception

    PubMed Central

    Heald, Shannon L. M.; Nusbaum, Howard C.

    2014-01-01

    A change in talker is a change in the context for the phonetic interpretation of acoustic patterns of speech. Different talkers have different mappings between acoustic patterns and phonetic categories and listeners need to adapt to these differences. Despite this complexity, listeners are adept at comprehending speech in multiple-talker contexts, albeit at a slight but measurable performance cost (e.g., slower recognition). So far, this talker variability cost has been demonstrated only in audio-only speech. Other research in single-talker contexts have shown, however, that when listeners are able to see a talker’s face, speech recognition is improved under adverse listening (e.g., noise or distortion) conditions that can increase uncertainty in the mapping between acoustic patterns and phonetic categories. Does seeing a talker’s face reduce the cost of word recognition in multiple-talker contexts? We used a speeded word-monitoring task in which listeners make quick judgments about target word recognition in single- and multiple-talker contexts. Results show faster recognition performance in single-talker conditions compared to multiple-talker conditions for both audio-only and audio-visual speech. However, recognition time in a multiple-talker context was slower in the audio-visual condition compared to audio-only condition. These results suggest that seeing a talker’s face during speech perception may slow recognition by increasing the importance of talker identification, signaling to the listener a change in talker has occurred. PMID:25076919

  18. Coding for Diabetes Audio Seminar/Webinar

    E-print Network

    unknown authors

    2008-01-01

    representation or guarantee with respect to the contents herein and specifically disclaims any implied guarantee of suitability for any specific purpose. AHIMA has no liability or responsibility to any person or entity with respect to any loss or damage caused by the use of this audio seminar, including but not limited to any loss of revenue, interruption of service, loss of business, or indirect damages resulting from the use of this program. AHIMA makes no guarantee that the use of this program will prevent differences of opinion or disputes with Medicare or other third party payers as to the amount that will be paid to providers of service. As a provider of continuing education, the American Health Information Management Association (AHIMA) must assure balance, independence, objectivity and scientific rigor in all of its endeavors. AHIMA is solely responsible for control of program objectives and content and the selection of presenters. All speakers and planning committee members are expected to disclose to the audience: (1) any significant financial interest or other relationships with the manufacturer(s) or provider(s) of any commercial product(s) or services(s) discussed in an educational presentation; (2) any significant financial interest or other relationship with any companies providing commercial support for the activity; and (3) if the presentation will include discussion of investigational or unlabeled uses of a product. The intent of this requirement is not to prevent a speaker with commercial affiliations from presenting, but rather to provide the participants with information from which they may make their own judgments. The faculty has reported no vested interests or disclosures regarding this presentation.

  19. 16 CFR 307.8 - Requirements for disclosure in audiovisual and audio advertising.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...disclosure in audiovisual and audio advertising. 307.8 Section 307...HEALTH EDUCATION ACT OF 1986 Advertising Disclosures § 307.8 Requirements...disclosure in audiovisual and audio advertising. In the case of...

  20. Content-based Identification of Audio Titles on the Internet”; to be published at Wedelmusic 2001

    E-print Network

    Helmut Neuschmied; Harald Mayer; Eloi Batlle

    The increasing usage of the Internet for the distribution of audio content and the increasing number of audio broadcasting stations require new supporting tools and methods for the observation of occurrence frequencies and of possible copyright-infringements. This paper describes a general approach for the identification of audio titles and its application on Internet observation. The concept of an AudioDNA is developed, allowing a highly compressed representation of a sequence of acoustic events. Audio titles are identified by using a sequence matching method which determines similarities between observed and reference AudioDNA stored in a database. This method is implemented in an highly scaleable architecture allowing to identify several audio titles in parallel. The first results with this system are very promising, only highly distorted audio titles are not identified correctly.

  1. 76 FR 591 - Determination of Rates and Terms for Preexisting Subscription and Satellite Digital Audio Radio...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-05

    ...satellite digital audio radio services for...performance of sound recordings and the making of...transmission of sound recordings and the making of ephemeral recordings in furtherance of...satellite digital audio radio...

  2. Virtual environment display for a 3D audio room simulation

    NASA Technical Reports Server (NTRS)

    Chapin, William L.; Foster, Scott H.

    1992-01-01

    The development of a virtual environment simulation system integrating a 3D acoustic audio model with an immersive 3D visual scene is discussed. The system complements the acoustic model and is specified to: allow the listener to freely move about the space, a room of manipulable size, shape, and audio character, while interactively relocating the sound sources; reinforce the listener's feeling of telepresence in the acoustical environment with visual and proprioceptive sensations; enhance the audio with the graphic and interactive components, rather than overwhelm or reduce it; and serve as a research testbed and technology transfer demonstration. The hardware/software design of two demonstration systems, one installed and one portable, are discussed through the development of four iterative configurations.

  3. Using MPEG-7 audio descriptors for music querying

    NASA Astrophysics Data System (ADS)

    Gruhne, M.; Dittmar, C.

    2006-08-01

    Due to the growing amount of digital audio an increasing need to automatically categorize music and to create self-controlled and suitable playlists has been emerged. A few approaches to this task relying on low-level features have been published so far. Unfortunately the results utilizing those technologies are not sufficient yet. This paper gives an introduction how to enhance the results with regard to the perceptual similarity using different high-level descriptors and a powerful interaction between the algorithm and the user to consider his preferences. A successful interaction between server and client requires a powerful standardized query language. This paper describes the tools of the MPEG-7 Audio standard in detail and gives examples of already established query languages. Furthermore the requirements of a multimedia query language are identified and its application is exemplified by an automatic audio creation system using a query language.

  4. Extreme Kicking Machine

    NSDL National Science Digital Library

    2012-08-20

    In this design challenge activity follow up to "Kicking Machine", learners add a hands-free feature to their Kicking Machine. Learners modify their kicking machine to have it either release the pendulum or rubber band while standing three feet away or have it automatically feed balls into the kicking machine, one after another. They must figure out how to integrate the new feature into the existing structure and use the design process to make sure the modified kicking machine works properly. Educators can use this activity to demonstrate simple machines and kinetic/potential energy.

  5. Video-assisted segmentation of speech and audio track

    NASA Astrophysics Data System (ADS)

    Pandit, Medha; Yusoff, Yusseri; Kittler, Josef; Christmas, William J.; Chilton, E. H. S.

    1999-08-01

    Video database research is commonly concerned with the storage and retrieval of visual information invovling sequence segmentation, shot representation and video clip retrieval. In multimedia applications, video sequences are usually accompanied by a sound track. The sound track contains potential cues to aid shot segmentation such as different speakers, background music, singing and distinctive sounds. These different acoustic categories can be modeled to allow for an effective database retrieval. In this paper, we address the problem of automatic segmentation of audio track of multimedia material. This audio based segmentation can be combined with video scene shot detection in order to achieve partitioning of the multimedia material into semantically significant segments.

  6. Three dimensional audio versus head down TCAS displays

    NASA Technical Reports Server (NTRS)

    Begault, Durand R.; Pittman, Marc T.

    1994-01-01

    The advantage of a head up auditory display was evaluated in an experiment designed to measure and compare the acquisition time for capturing visual targets under two conditions: Standard head down traffic collision avoidance system (TCAS) display, and three-dimensional (3-D) audio TCAS presentation. Ten commercial airline crews were tested under full mission simulation conditions at the NASA Ames Crew-Vehicle Systems Research Facility Advanced Concepts Flight Simulator. Scenario software generated targets corresponding to aircraft which activated a 3-D aural advisory or a TCAS advisory. Results showed a significant difference in target acquisition time between the two conditions, favoring the 3-D audio TCAS condition by 500 ms.

  7. Towards robust features for classifying audio in the CueVideo system

    Microsoft Academic Search

    Savitha Srinivasan; Dragutin Petkovic; Dulce B. Ponceleon

    1999-01-01

    The role of audio in the context of multimedia applications involving video is becoming increasingly important. Many efforts in this area focus on audio data that contains some built-in semantic information structure such as in broadcast news, or focus on classification of audio that contains a single type of sound such as cleaar speech or clear music only. In the

  8. A Reproducible Research Framework for Audio Inpainting Amir Adler and Michael Elad

    E-print Network

    Paris-Sud XI, Université de

    of distorted audio data, leveraging the Image Inpainting concept and covering existing audio applications. Inpainting can be generalized as a problem of missing data estimation and techniques for image inpainting canA Reproducible Research Framework for Audio Inpainting Amir Adler and Michael Elad Computer Science

  9. Optical fiber transmission of SWFM signal for addressed audio and video signals

    Microsoft Academic Search

    Yuying Wu; Hiroaki IKEDA; Hirofumi YOSHIDA; Shigenobu SHINOHARA

    1993-01-01

    Described is an addressed audio and video signal transmission system in which audio and video signals together with their address consisting of 8 frequencies can simultaneously be sent from the sender to the designated receivers through the optical fibers. The received audio signal covered the frequency range of 10 Hz to 20 kHz with a distortion factor of less than

  10. Optimal Crosstalk Cancellation for Binaural Audio with Two Loudspeakers Edgar Y. Choueiri

    E-print Network

    Bou-Zeid, Elie

    Optimal Crosstalk Cancellation for Binaural Audio with Two Loudspeakers Edgar Y. Choueiri Princeton of binaural audio through loudspeakers allowing a listener to perceive an accurate 3-D image of a recorded to the sound and that has been an impediment to the wide adoption of loudspeaker-based binaural audio

  11. FOR FRIENDS AND SUPPORTERS OF THE KANSAS AUDIO-READER NETWORK SPRING 2014

    E-print Network

    volunteer, but did you know she's still reading? Her name may not appear in record books, nor has books for a brand-new service called Audio-Reader. Eleanor had a busy life working full-Winston Managing Editor / Art Director The Audio-Reader Mission The Kansas Audio-Reader Network exists to provide

  12. Frequency-Based Coloring of the Audio Waveform Display Stephen V. Rice

    E-print Network

    Rice, Stephen V.

    Frequency-Based Coloring of the Audio Waveform Display Stephen V. Rice The University to represent the frequency content to make sounds more visible. Audio-editing systems are enhanced-track audio-editing system presents one waveform display for each track. However, frequency information

  13. Hearing you loud and clear: student perspectives of audio feedback in higher education

    Microsoft Academic Search

    Jill Gould; Pat Day

    2012-01-01

    The use of audio feedback for students in a full-time community nursing degree course is appraised. The aim of this mixed methods study was to examine student views on audio feedback for written assignments. Questionnaires and a focus group were used to capture student opinion of this pilot project. The majority of students valued audio feedback as more detailed, personalised

  14. AN ONLINE SYSTEM FOR SYNCHRONIZED PROCESSING OF VIDEO AND AUDIO SIGNALS

    E-print Network

    Amer, Aishy

    and processed sepa- rately. The signals are buffered and integrated and synchro- nized using a time-stamping technique. Time-stamps pro- vide the timing information for each of the audio and video processes processing, audio processing, signals integration, synchronized audio and video signals; time- stamping. 1

  15. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...distribution of digital audio recording devices or media. 201.27 Section 201.27 Patents...distribution of digital audio recording devices or media. (a) General. This section...recording device or digital audio recording medium in the United States. (b)...

  16. Project Sonology: An Experimental Project Exploring the Possibilities of Sound and Audio as the Primary Element

    E-print Network

    Boyer, Edmond

    supported by prototypes. The core technology is a combination of a 3D game engine and an audio engine used. We combine a 3D game engine and an audio engine as the core technology to create 3D sound Platforms FMOD audio engine and OGRE 3D game engine are chosen as the fundamental software. FMOD gives sound

  17. Spatial audio in small screen device displays Ashley Walker and Stephen Brewster

    E-print Network

    Williamson, John

    Spatial audio in small screen device displays Ashley Walker and Stephen Brewster Department:ashley,stephen@dcs.gla.ac.uk keywords: interface design, 3D audio, delay affordance, usability testing Our work addresses problem of techniques - from the graphical to the audio domain - for exploiting space in information representation

  18. 50 CFR 27.71 - Commercial filming and still photography and audio recording.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...still photography and audio recording. 27.71 Section 27...Photography, and Light and Sound Equipment § 27.71 Commercial...still photography and audio recording. (a) We authorize commercial...CFR part 5. (b) Audio recording does not require a permit...

  19. 50 CFR 27.71 - Commercial filming and still photography and audio recording.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...still photography and audio recording. 27.71 Section 27...Photography, and Light and Sound Equipment § 27.71 Commercial...still photography and audio recording. (a) We authorize commercial...CFR part 5. (b) Audio recording does not require a permit...

  20. Backward-compatible terrestrial digital multimedia broadcasting system for multichannel audio service

    Microsoft Academic Search

    Han-gil Moon

    2010-01-01

    In this paper, a Terrestrial Digital Multimedia Broadcasting (T-DMB) system for a multichannel audio service is proposed. The multichannel audio information on the T-DMB system proposed in this paper consists of a stereo audio signal coded by BSAC and additional multichannel side information coded by MPEG surround. These two types of information are conveyed through two elementary streams (ES), respectively.

  1. SOLAR: Sound Object Localization and Retrieval in Complex Audio Environments Derek Hoiem1

    E-print Network

    Guestrin, Carlos

    SOLAR: Sound Object Localization and Retrieval in Complex Audio Environments Derek Hoiem1 , Yan Ke1 to identify sounds in complex audio environ- ments is highly useful for multimedia retrieval, security sys- tem, a system capable of finding sound objects, such as dog barks or car horns, in complex audio

  2. Hearing You Loud and Clear: Student Perspectives of Audio Feedback in Higher Education

    ERIC Educational Resources Information Center

    Gould, Jill; Day, Pat

    2013-01-01

    The use of audio feedback for students in a full-time community nursing degree course is appraised. The aim of this mixed methods study was to examine student views on audio feedback for written assignments. Questionnaires and a focus group were used to capture student opinion of this pilot project. The majority of students valued audio feedback…

  3. Investigating the Impact of Audio Degradations on Users: Subjective vs. Objective Assessment Methods

    E-print Network

    Sasse, Angela

    conferencing (MMC) is increasing in popularity, but it is often questioned whether the quality of the audio is increasing in popularity. It facilitates communication between two or more users, through the tools of audio are widely used to assess audio and video quality. Typically, a short section of material is played, after

  4. Audio Use in E-Learning: What, Why, When, and How?

    ERIC Educational Resources Information Center

    Calandra, Brendan; Barron, Ann E.; Thompson-Sellers, Ingrid

    2008-01-01

    Decisions related to the implementation of audio in e-learning are perplexing for many instructional designers, and deciphering theory and principles related to audio use can be difficult for practitioners. Yet, as bandwidth on the Internet increases, digital audio is becoming more common in online courses. This article provides a review of…

  5. Guided by Voices: An Audio Augmented Reality System Kent Lyons, Maribeth Gandy, Thad Starner

    E-print Network

    Starner, Thad E.

    Guided by Voices: An Audio Augmented Reality System Kent Lyons, Maribeth Gandy, Thad Starner, lightweight audio-only augmented reality infrastructure. The system uses a simple wearable computer and a RF in creating audio-only augmented reality games and show how our location infrastructure is generalizable

  6. Audio events detection based highlights extraction from baseball, golf and soccer games in a unified framework

    Microsoft Academic Search

    Ziyou Xiong; Regunathan Radhakrishnan; Ajay Divakaran; Thomas S. Huang

    2003-01-01

    We have developed a unified framework to extract highlights from three sports - baseball, golf and soccer - by detecting some of the common audio events that are directly indicative of highlights. We used MPEG-7 audio features and entropic prior hidden Markov models (HMM) for feature extraction and classification, respectively, to recognize these common audio events. Together with pre- and

  7. The design and implementation of the courseware for a chinese tutoring machine

    E-print Network

    Tsang, Sung-Hang

    1985-01-01

    and those who wish to self pace their progress in learning conversational Chinese. It also discusses some teaching strategies on how the Chinese Tutoring Machine monitors students' performance and guides their progress. Furthermore, some databases which...' pronunciation, grading their performance, directing their progress and providing them both audio and visual aids repeat till the end of the lesson. 1. 4 Purposes This report presents the research on the design of the courseware for the Chinese Tutoring...

  8. A study of the effect of variable speed machining on regenerative chatter in end milling

    E-print Network

    Dhayalan, Arun Kumar

    2000-01-01

    to Facilitate Variable Speed Machining. . . 3. 3. Test Procedure. 3. 3. 1. The Cutting. 3. 3. 2. The Measurements. 3. 3. 3. Operating Range 4. EXPERIMENTAL DATA ANALYSIS. 4. 1. Introduction. 4. 2. The Audio Data. 4. 3. FFI' on CSM Force Data. 4. 4. FFT.... Typical FFT plots for stable and unstable cutting. . . . . . . . . . . . . . . . . FFT plots for a depth of cut = 0. 25 inch and CSM. . . . . . . . . . . . . . . . FFT plots for a depth of cut = 0. 3 inch and CSM. . . . . . . . . . . . . . . . . . FFI...

  9. Stirling machine operating experience

    NASA Technical Reports Server (NTRS)

    Ross, Brad; Dudenhoefer, James E.

    1991-01-01

    Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that Stirling machines are capable of reliable and lengthy lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and were not expected to operate for any lengthy period of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered.

  10. Women, Men, and Machines.

    ERIC Educational Resources Information Center

    Form, William; McMillen, David Byron

    1983-01-01

    Data from the first national study of technological change show that proportionately more women than men operate machines, are more exposed to machines that have alienating effects, and suffer more from the negative effects of technological change. (Author/SSH)

  11. Machine protection systems

    E-print Network

    Macpherson, A L

    2010-01-01

    A summary of the Machine Protection System of the LHC is given, with particular attention given to the outstanding issues to be addressed, rather than the successes of the machine protection system from the 2009 run. In particular, the issues of Safe Machine Parameter system, collimation and beam cleaning, the beam dump system and abort gap cleaning, injection and dump protection, and the overall machine protection program for the upcoming run are summarised.

  12. The Advantage of Machines

    NSDL National Science Digital Library

    Integrated Teaching and Learning Program,

    In this lesson, students learn about work as defined by physical science and see that work is made easier through the use of simple machines. Already encountering simple machines everyday, students will be learn about their widespread uses in improving everyday life. This lesson serves as the starting point for the Simple Machines Unit.

  13. Drilling mud cleaning machine

    Microsoft Academic Search

    W. L. Spruiell; J. L. Spruiell

    1987-01-01

    This patent describes a multiple-function cleaning, desilting and desanding machine for cleaning drilling muds which contain unwanted solid waste materials entrained during drilling processes. The machine comprises: supportive frame means adapted to be disposed upon a supportive surface for securely positioning the machine at a selected drilling site; a cyclone chamber having means for receiving dirty drilling mud from a

  14. Wind motor machine

    Microsoft Academic Search

    Goedecke

    1984-01-01

    An improved wind motor machine having a wind rotor rotatable about a vertical axis. The rotor core body of the machine is provided with convexly curved wind application surfaces and coacting outer wing bodies having load supporting airplane wing-shaped cross-sections. The efficiency of the machine is improved by means of stream guiding bodies disposed in the intermediate space between the

  15. Millikelvin Lab Machine Shop

    E-print Network

    McQuade, D. Tyler

    Millikelvin Lab OP105­112 Machine Shop OP132 Resistive Magnet Shop CICC Winding Area Transformers This building is home to the Millikelvin lab, the control room, the resistive magnet and machine shops, the CICC@magnet.fsu.edu (850) 644-4378 (850) 644-0534 2 MACHINE SHOP OP132 Vaughan Williams (A114*) williams

  16. Review on ultrasonic machining

    Microsoft Academic Search

    T. B. Thoe; D. K. Aspinwall; M. L. H. Wise

    1998-01-01

    Ultrasonic machining is of particular interest for the cutting of non-conductive, brittle workpiece materials such as engineering ceramics. Unlike other non-traditional processes such as laser beam, and electrical discharge machining, etc., ultrasonic machining does not thermally damage the workpiece or appear to introduce significant levels of residual stress, which is important for the survival of brittle materials in service. The

  17. Your Sewing Machine.

    ERIC Educational Resources Information Center

    Peacock, Marion E.

    The programed instruction manual is designed to aid the student in learning the parts, uses, and operation of the sewing machine. Drawings of sewing machine parts are presented, and space is provided for the student's written responses. Following an introductory section identifying sewing machine parts, the manual deals with each part and its…

  18. Find the Simple Machines

    NSDL National Science Digital Library

    COSI

    2000-01-01

    This is a web activity about simple machines. Learners will explore a lawn mower and identify six different simple machines which work together to help make our lives easier. This is an excellent activity for exploring how simple machines, and science in general, apply to learners' everyday lives.

  19. Apprentice Machine Theory Outline.

    ERIC Educational Resources Information Center

    Connecticut State Dept. of Education, Hartford. Div. of Vocational-Technical Schools.

    This volume contains outlines for 16 courses in machine theory that are designed for machine tool apprentices. Addressed in the individual course outlines are the following topics: basic concepts; lathes; milling machines; drills, saws, and shapers; heat treatment and metallurgy; grinders; quality control; hydraulics and pneumatics;…

  20. Data fusion and correlation techniques testbed development audio processing study

    NASA Astrophysics Data System (ADS)

    1990-09-01

    A study was performed as part of the development of the Data Fusion and Correlation Testbed (DFACT) prototype to investigate the audio processing requirements of the DFACT system. The DFACT system was conceived to provide a testbed for design and implementation of software architectures and communications sensor information, and analysis and correlation algorithms, for land electronic warfare. The base system consists of a number of analyst workstations and intercept operator workstations interconnected through Ethernet. A number of computer controlled intercept receivers along with a communications emitter locating system provide data to DFACT for reduction, correlation, and fusion activities. Intercepted messages are transcribed by the intercept operators and stored in a database for further processing by the analysts. The study examines the basic audio processing capabilities required by DFACT both from a functional and processing perspective. Issues related to throughput, storage capacity, and data retrieval are examined, and a suitable system architecture for a DFACT audio processor is described that satisfies all DFACT system audio processing requirements.

  1. Survey of the State of Audio Collections in Academic Libraries

    ERIC Educational Resources Information Center

    Smith, Abby; Allen, David Randal; Allen, Karen

    2004-01-01

    The goal of this survey was to collect and analyze baseline information about the status of audio collections held by a set of research institutions. This information can help shape the national preservation plan now being developed by the National Recording Preservation Board (NRPB) and the Library of Congress to preserve "sound recordings that…

  2. The Role of Audio Media in the Lives of Children.

    ERIC Educational Resources Information Center

    Christenson, Peter G.; Lindlof, Thomas R.

    Mass communication researchers have largely ignored the role of audio media and popular music in the lives of children, yet the available evidence shows that children do listen. Extant studies yield a consistent developmental portrait of childrens' listening frequency, but there is a notable lack of programatic research over the past decade, one…

  3. Video genre categorization and representation using audio-visual information

    NASA Astrophysics Data System (ADS)

    Ionescu, Bogdan; Seyerlehner, Klaus; Rasche, Christoph; Vertan, Constantin; Lambert, Patrick

    2012-04-01

    We propose an audio-visual approach to video genre classification using content descriptors that exploit audio, color, temporal, and contour information. Audio information is extracted at block-level, which has the advantage of capturing local temporal information. At the temporal structure level, we consider action content in relation to human perception. Color perception is quantified using statistics of color distribution, elementary hues, color properties, and relationships between colors. Further, we compute statistics of contour geometry and relationships. The main contribution of our work lies in harnessing the descriptive power of the combination of these descriptors in genre classification. Validation was carried out on over 91 h of video footage encompassing 7 common video genres, yielding average precision and recall ratios of 87% to 100% and 77% to 100%, respectively, and an overall average correct classification of up to 97%. Also, experimental comparison as part of the MediaEval 2011 benchmarking campaign demonstrated the efficiency of the proposed audio-visual descriptors over other existing approaches. Finally, we discuss a 3-D video browsing platform that displays movies using feature-based coordinates and thus regroups them according to genre.

  4. Secure spread spectrum watermarking for images, audio and video

    Microsoft Academic Search

    I. J. Cox; J. Kilian; T. Leighton; T. Shamoon

    1996-01-01

    We describe a digital watermarking method for use in audio, image, video and multimedia data. We argue that a watermark must be placed in perceptually significant components of a signal if it is to be robust to common signal distortions and malicious attack. However, it is well known that modification of these components can lead to perceptual degradation of the

  5. STEREOPHONIC PERSONAL AUDIO REPRODUCTION USING PLANARITY CONTROL OPTIMIZATION

    E-print Network

    Jackson, Philip JB

    STEREOPHONIC PERSONAL AUDIO REPRODUCTION USING PLANARITY CONTROL OPTIMIZATION Philip Coleman levels and complex phase patterns within the target zone. Furthermore, multichannel reproduction systems in an arbitrarily-placed target zone. In this study, the application of planarity control for stereo reproduction

  6. Use of 3D Head Shape for Personalized Binaural Audio

    E-print Network

    Jackson, Philip JB

    to incoming sound from a point source in space is characterized by the head related impulse response (HRIRUse of 3D Head Shape for Personalized Binaural Audio Philip J. B. Jackson1, and Naveen K. Desiraju1 requires accurate estimation of an individual's Head-Related Impulse Responses (HRIRs), capturing details

  7. Dynomite: a dynamically organized ink and audio notebook

    Microsoft Academic Search

    Lynn D. Wilcox; Bill N. Schilit

    1997-01-01

    Dynomite is a portable electronic notebook for the capture and retrieval of handwritten and audio notes. The goal of Dynomite is to merge the organization, search, and data acquisition capabilities of a computer with the benefits of a paper-based notebook. Dynomite provides novel solutions in four key problem areas. First, Dynomite uses a casual, low cognitive overhead interface. Second, for

  8. AUTOMATIC LYRICS-TO-AUDIO ALIGNMENT IN CLASSICAL TURKISH MUSIC

    E-print Network

    AUTOMATIC LYRICS-TO-AUDIO ALIGNMENT IN CLASSICAL TURKISH MUSIC Georgi Dzhambazov, Sertan S. INTRODUCTION Lyrics are one of the most important musical components of vocal music. When a performance, the automatic synchronization between lyrics and music poses a user-demanded research question. By applying

  9. Automatic Identification of Music Works through Audio Matching

    E-print Network

    Miotto, Riccardo

    , when lyrics are not available for recognizing a particular work. Metadata about music works are neededAutomatic Identification of Music Works through Audio Matching Riccardo Miotto and Nicola Orio. The availability of large music repositories poses challenging research problems, which are also related

  10. A Probabilistic Model for Music Recommendation Considering Audio Features

    Microsoft Academic Search

    Qing Li; Sung-hyon Myaeng; Byeong Man Kim

    2005-01-01

    In order to make personalized recommendations, many collaborative music recommender systems (CMRS) focused on capturing precise similarities among users or items based on user historical ratings. Despite the valuable in- formation from audio features of music itself, however, few studies have inves- tigated how to directly extract and utilize information from music for personal- ized recommendation in CMRS. In this

  11. Automatic summarization of audio-visual soccer feeds

    Microsoft Academic Search

    Fan Chen; Christophe De Vleeschouwer; Helenca Duxans Barrobes; J. Gregorio Escalada; David Conejero

    2010-01-01

    This paper presents a fully automatic system for soccer game summarization. The system takes audio-visual content as an input, and builds on the integration of two independent but complementary contributions (i) to identify crucial periods of the soccer game in a fully automatic way, and (ii) to summarize the soccer game as a function of individual narrative preferences of the

  12. Nonlinear audio recurrence analysis with application to genre classification

    Microsoft Academic Search

    Joan Serra; Carlos A. de los Santos; Ralph G. Andrzejak

    2011-01-01

    In this paper we apply nonlinear signal analysis to a music information retrieval task. More concretely, we apply the concept of recurrence plots and recurrence histograms to extract information from music audio frames. We evaluate the effectiveness of this approach with a typical genre classi? cation framework and compare it against a baseline obtained from standard spectrum-based descriptors. The accuracy

  13. Audio-Based Event Detection for Sports Video

    Microsoft Academic Search

    Mark Baillie; Joemon M. Jose

    2003-01-01

    In this paper, we present an audio-based event detection ap- proach shown to be eective when applied to the Sports broadcast data. The main benefit of this approach is the ability to recognise patterns that indicate high levels of crowd response which can be correlated to key events. By applying Hidden Markov Model-based classifiers, where the predefined content classes are

  14. Low jitter audio range PLL with ultra low power dissipation

    Microsoft Academic Search

    Fu Luo; Godi Fischer

    2011-01-01

    This paper presents the design of an ultra low power Phase-Locked Loop (PLL) intended for applications in the extended audio range. The PLL is well suited for battery operated systems, where small size and low power operation are crucially important. The presented implementation is based on a current controlled relaxation oscillator, which creates a sawtooth output with a frequency range

  15. Audio-Visual Perception System for a Humanoid Robotic Head

    PubMed Central

    Viciana-Abad, Raquel; Marfil, Rebeca; Perez-Lorenzo, Jose M.; Bandera, Juan P.; Romero-Garces, Adrian; Reche-Lopez, Pedro

    2014-01-01

    One of the main issues within the field of social robotics is to endow robots with the ability to direct attention to people with whom they are interacting. Different approaches follow bio-inspired mechanisms, merging audio and visual cues to localize a person using multiple sensors. However, most of these fusion mechanisms have been used in fixed systems, such as those used in video-conference rooms, and thus, they may incur difficulties when constrained to the sensors with which a robot can be equipped. Besides, within the scope of interactive autonomous robots, there is a lack in terms of evaluating the benefits of audio-visual attention mechanisms, compared to only audio or visual approaches, in real scenarios. Most of the tests conducted have been within controlled environments, at short distances and/or with off-line performance measurements. With the goal of demonstrating the benefit of fusing sensory information with a Bayes inference for interactive robotics, this paper presents a system for localizing a person by processing visual and audio data. Moreover, the performance of this system is evaluated and compared via considering the technical limitations of unimodal systems. The experiments show the promise of the proposed approach for the proactive detection and tracking of speakers in a human-robot interactive framework. PMID:24878593

  16. Efficiency of low power audio amplifiers and loudspeakers

    Microsoft Academic Search

    S. Burrow; D. Grant

    2001-01-01

    We look at the load presented to audio amplifiers by real transducers. We consider the power losses in class-AB and class-D amplifier topologies, and determine that in order to predict efficiency it is necessary to consider the amplifier\\/transducer combination. The ability of the class-D amplifier to recycle quadrature load current offers new ways to improve efficiency

  17. AudioVisual Classroom Consoles(LARGE) AMX Touch panel

    E-print Network

    Peak, Derek

    AudioVisual Classroom Consoles(LARGE) AMX Touch panel Chapter 1: Start up console using console PC) 2. Touch AMX Panel to reveal access keypad. Touch number (please contact eMAP for code) then DONE of your computer screen. Make sure it is not muted and adjust the level with your mouse. 2. AMX TouchPanel

  18. Broadband Networked Audio: Entering the Era of Multisensory Data Distribution

    E-print Network

    Cooperstock, Jeremy R.

    -end" videoconferencing systems and fa- cilities. Similarly, vibro-sensory data such as floor vibra- tion and low-frequency Digital AC-3), uncompressed multichannel 96kHz/24 bit streaming, and low-latency networked audio, have. Recent research demonstrates the tremendous im- pact that one modality may have on others, for example

  19. Evaluation of an Audio Cassette Tape Lecture Course

    ERIC Educational Resources Information Center

    Blank, Jerome W.

    1975-01-01

    An audio-cassette continuing education course (Selected Topics in Pharmacology) from Extension Services in Pharmacy at the University of Wisconsin was offered to a selected test market of pharmacists and evaluated using a pre-, post-test design. Results showed significant increase in cognitive knowledge and strong approval of students. (JT)

  20. Chemical News Via Audio Tapes: Chemical Industry News

    ERIC Educational Resources Information Center

    Hanford, W. E.; And Others

    1972-01-01

    Tape coverage of internal R&D news now has a broader scope with improved features. A new tape series covering external news of broad interest has been initiated. The use of tape in a Continuing Education Program is discussed as the future plans for expanding the audio tape program. (1 reference) (Author)

  1. Intelligent Audio Production Strategies Informed by Best Practices

    E-print Network

    Reiss, Josh

    be at the basis of algorithm development in intelligent audio production systems. Through mix analysis that go against the stabilized as- sumptions found in previous research. This work resorts to approaches quantitative surveys the habits of successful mixing engineers. 6. Performing exploratory interviews

  2. Audio-visual emotion recognition in adult attachment interview

    Microsoft Academic Search

    Zhihong Zeng; Yuxiao Hu; Yun Fu; Thomas S. Huang; Glenn I. Roisman; Zhen Wen

    2006-01-01

    Automatic multimodal recognition of spontaneous affective expressions is a largely unexplored and challenging problem. In this paper, we explore audio-visual emotion recognition in a realistic human conversation setting - Adult Attachment Interview (AAI). Based on the assumption that facial expression and vocal expression be at the same coarse affective states, positive and negative emotion sequences are labeled according to Facial

  3. Infant Perception of Audio-Visual Speech Synchrony

    ERIC Educational Resources Information Center

    Lewkowicz, David J.

    2010-01-01

    Three experiments investigated perception of audio-visual (A-V) speech synchrony in 4- to 10-month-old infants. Experiments 1 and 2 used a convergent-operations approach by habituating infants to an audiovisually synchronous syllable (Experiment 1) and then testing for detection of increasing degrees of A-V asynchrony (366, 500, and 666 ms) or by…

  4. The Audio-Visual Marketing Handbook for Independent Schools.

    ERIC Educational Resources Information Center

    Griffith, Tom

    This how-to booklet offers specific advice on producing video or slide/tape programs for marketing independent schools. Five chapters present guidelines for various stages in the process: (1) Audio-Visual Marketing in Context (aesthetics and economics of audiovisual marketing); (2) A Question of Identity (identifying the audience and deciding on…

  5. Guided by Voices: An Audio Augmented Reality System

    Microsoft Academic Search

    Kent Lyons; Maribeth Gandy; Thad Starner

    2000-01-01

    This paper presents an application of a low cost, lightweight audio-only augmented reality infrastructure. The system uses a simple wearable computer and a RF based location system to play digital sounds corresponding to the user' s location and current state. Using this infrastructure we implemented a game in the fantasy genre where players move around in the real world and

  6. A survey of packet loss recovery techniques for streaming audio

    Microsoft Academic Search

    Colin Perkins; Orion Hodson; Vicky Hardman

    1998-01-01

    We survey a number of packet loss recovery techniques for streaming audio applications operating using IP multicast. We begin with a discussion of the loss and delay characteristics of an IP multicast channel, and from this show the need for packet loss recovery. Recovery techniques may be divided into two classes: sender- and receiver-based. We compare and contrast several sender-based

  7. A lossless audio compression software for Windows application

    Microsoft Academic Search

    Lin Xiao; Tan Wee Hong; Gee Chein Woei; Li Gang

    1998-01-01

    This paper focuses on the design of an adaptive lossless compression algorithm for audio waveforms, which aims to be used in Internet, PC game, library archive applications, etc. Windows based software is developed which can also be used in DOS or UNIX operating system. The lossless compression is based on the Rice code (Rice and Plant, 1971), and a scheme

  8. Audio Video Conferencing Geoffrey Fox, Gurhan Gunduz and Ahmet Uyar

    E-print Network

    parts of the collaboration; secondly the alternatives were not very satisfactory when we developed Buena or even useful to develop our own audio video support; rather we will use best of practice solutions from other commercial or research developers. In some cases we can use an available API to link invocation

  9. Recognition of blue movies by fusion of audio and video

    Microsoft Academic Search

    Haiqiang Zuo; Ou Wu; Weiming Hu; Bo Xu

    2008-01-01

    Along with the explosive growth of the Internet, comes the proliferation of pornography. Compared with the pornographic texts and images, blue movies can do much harm to children, due to the greater realism and voyeurism of blue movies. In this paper, a framework for recognizing blue movies by fusing the audio and video information is described. A one-class Gaussian mixture

  10. Australian High Schools Use Audio-Tutorials in Field Biology

    ERIC Educational Resources Information Center

    Meyer, G. R.; Postlethwait, S. N.

    1970-01-01

    Describes a workshop program for biology teachers involving the preparation of audio-tutorial units designed to prepare high school students for independent study of field ecology. Outlines units prepared and discusses usefulness of similar units in high schools and elsewhere. (EB)

  11. Audio Professional Development Workshops: Less Glamorous, More Cost Effective.

    ERIC Educational Resources Information Center

    Frey, Barbara; Overfield, Karen

    2002-01-01

    Discusses advantages and disadvantages of audioconferencing for professional development; recommends basing technology choice on curriculum and provides a checklist of criteria. Describes an audio workshop on learning disabilities, outlining principles of good practice, guidelines for site coordinators, and participant handouts. (SK)

  12. An Audio-Visual Lecture Course in Russian Culture

    ERIC Educational Resources Information Center

    Leighton, Lauren G.

    1977-01-01

    An audio-visual course in Russian culture is given at Northern Illinois University. A collection of 4-5,000 color slides is the basis for the course, with lectures focussed on literature, philosophy, religion, politics, art and crafts. Acquisition, classification, storage and presentation of slides, and organization of lectures are discussed. (CHK)

  13. Speech and Language Technologies for Audio Indexing and Retrieval

    E-print Network

    . The technologies highlighted in this paper include speaker-independent continuous speech recognition, speaker. It also segments the input stream into sto- ries, based on their topic content, and locates the names to construct highly selective search queries for retrieving specific content from large audio archives

  14. Location for audio signals based on empirical mode decomposition

    Microsoft Academic Search

    Xiao Wu; Shijiu Jin; Zhoumo Zeng; Yunkui Xiao; Yajuan Cao

    2009-01-01

    In this paper, empirical mode decomposition (EMD) denoising is applied in audio signals location when speech signals are received at several spatially separated sensors in the presence of noise. Firstly, Prior to cross correlation, each of the sensor outputs is separated into several intrinsic mode functions (IMFs) using EMD. Then, we compute normal energy of each IMFs and denoise IMFs

  15. Audio person tracking in a smart-room environment

    Microsoft Academic Search

    Alberto Abad; Carlos Segura; Dusan Macho; Javier Hernando; Climent Nadeu

    2006-01-01

    Reliable measures of speaker positions are needed for com- putational perception of human activities taking place in a smart- room environment. In this work, it is described the development process and the experiments conducted in the design and imple- mentation of an Audio Person Tracking system for smart-room environments. The proposed system is based on the SRP-PHAT algorithm, as it

  16. Music Piracy and the Audio Home Recording Act

    Microsoft Academic Search

    Tia Hall

    2002-01-01

    In spite of the guidance provided by the Audio Home Recording Act (AHRA) of 1992, music companies are once again at odds with consumer electronics manufacturers. This time around, the dispute is over certain information technology products that enable consumers to copy digital music and transfer them to different formats, or exchange them over the Internet. This article will discuss

  17. Learning from Animated Concept Maps with Concurrent Audio Narration

    ERIC Educational Resources Information Center

    Nesbit, John C.; Adesope, Olusola O.

    2011-01-01

    An animated concept map is a presentation of a network diagram in which nodes and links are sequentially added or modified. An experiment compared learning from animated concept maps and text by randomly assigning 133 undergraduates to study 1 of 4 narrated animations presenting semantically equivalent information accompanied by identical audio

  18. Preliminary Experiment Combining Virtual Reality Haptic Shoes And Audio Synthesis

    E-print Network

    Hayward, Vincent

    is based on a physical model that drives both haptic transdu- cers embedded in sandals and headphones recognition. Key words: physical models, walking sounds, audio-haptic interaction. 1 Introduction on the interaction between vision and audition or between vision and touch, interaction between touch and audition

  19. INTELLIGENT SYSTEMS FOR MIXING MULTICHANNEL AUDIO Joshua D. Reiss

    E-print Network

    Reiss, Josh

    on Sound magazine wrote, "There's no reason why a band recording using reasonably conventional the sound engineer refine his choices to produce an aesthetically pleasing mix which best captures the intended sound. In order to address this challenge, a new form of multichannel audio signal processing has

  20. The 7 Habits of Highly Effective Families Audio System. [Audiotapes].

    ERIC Educational Resources Information Center

    Covey, Stephen R.

    Intended to help families build rewarding relationships, this set of audio tapes communicates the importance of family, shows the role of leadership in creating "beautiful family culture," and provides a frame of reference in which to solve problems. The first of the four tapes explores the concept of principles as the foundation of family, and…

  1. AUDIO ISSUES IN MIR EVALUATION Josh Reiss Mark Sandler

    E-print Network

    Reiss, Josh

    AUDIO ISSUES IN MIR EVALUATION Josh Reiss Mark Sandler Centre for Digital Music Queen Mary to create music testbeds to suit the needs of the music analysis and music information retrieval (MIR library or MIR testbed are confronted with a variety of questions pertaining to file formats

  2. Packet Audio Playout Delay Adjustment: Performance Bounds and Algorithms

    Microsoft Academic Search

    Sue B. Moon; James F. Kurose; Donald F. Towsley

    1998-01-01

    In packet audio applications, packets are buffered at a receiving site and their playout delayed in order to com- pensate for variable network delays. In this paper, we con- sider the problem of adaptively adjusting the playout delay in order to keep this delay as small as possible, while at the same time avoiding excessive \\

  3. Libraries and Audio-Visual Center Cost Allocation Study.

    ERIC Educational Resources Information Center

    Drake, Miriam A.

    A 1975 cost analysis study of the Purdue University Library and Audio-Visual Center collected data to ascertain the cost of services and materials during the fiscal year 1975 and to identify the allocation of costs among user groups, among library functions (e.g., processing, client services), and among end uses (e.g., instruction, research). This…

  4. SHORT COMMUNICATION An audio/video surveillance system for wildlife

    E-print Network

    Paris-Sud XI, Université de

    SHORT COMMUNICATION An audio/video surveillance system for wildlife Roman Gula & Jörn Theuerkauf frequently visited by wildlife. Keywords Methods . Video surveillance . Nest monitoring . Digital video for studying wildlife. Camera systems featuring motion sensors, time lapse and continuous recording have been

  5. AUDIO-VISUAL ISOLATED DIGIT RECOGNITION FOR WHISPERED SPEECH

    E-print Network

    Busso, Carlos

    AUDIO-VISUAL ISOLATED DIGIT RECOGNITION FOR WHISPERED SPEECH Xing Fan, Carlos Busso, and John H.L. Hansen Center for Robust Speech Systems(CRSS) University of Texas at Dallas, Richardson, Texas 75083 xxf of whisper, there are considerable differences between neutral and whispered speech in the spectral structure

  6. Integrated Spacesuit Audio System Enhances Speech Quality and Reduces Noise

    NASA Technical Reports Server (NTRS)

    Huang, Yiteng Arden; Chen, Jingdong; Chen, Shaoyan Sharyl

    2009-01-01

    A new approach has been proposed for increasing astronaut comfort and speech capture. Currently, the special design of a spacesuit forms an extreme acoustic environment making it difficult to capture clear speech without compromising comfort. The proposed Integrated Spacesuit Audio (ISA) system is to incorporate the microphones into the helmet and use software to extract voice signals from background noise.

  7. West Virginia Palliative Care Network 2011 Audio Conference Series

    E-print Network

    Mohaghegh, Shahab

    West Virginia Palliative Care Network 2011 Audio Conference Series Target Audience - These courses care clinicians who wish to expand their knowledge of end-of-life care. Course Description - Hospital palliative care consultation teams have been shown to improve care for patients with serious illness

  8. UnderScore: Musical Underlays for Audio Stories Steve Rubin

    E-print Network

    California at Irvine, University of

    UnderScore: Musical Underlays for Audio Stories Steve Rubin Floraine Berthouzoz Gautham J. Mysore a harmonious composition. We present UnderScore, a set of semi-automated tools designed to fa- cilitate track. UnderScore automatically refines, aligns and adjusts the speech and music to generate a high

  9. Subword-based spoken term detection in audio course lectures

    Microsoft Academic Search

    Richard C. Rose; Atta Norouzian; Aarthi Reddy; André Coy; Vishwa Gupta; Martin Karafiát

    2010-01-01

    This paper investigates spoken term detection (STD) from audio recordings of course lectures obtained from an existing media repository. STD is performed from word lattices generated offline using an automatic speech recognition (ASR) system configured from a meetings domain. An efficient STD approach is presented where lattice paths which are likely to contain search terms are identified and an efficient

  10. Pitch Histograms in Audio and Symbolic Music Information Retrieval

    E-print Network

    Tzanetakis, George

    Pitch Histograms in Audio and Symbolic Music Information Retrieval George Tzanetakis (corresponding content, pitch and timing information is utilized in the majority of existing work in Symbolic Music information, which can be calculated using automatic computer audition techniques. In this paper, Pitch

  11. Private Audio Streaming for an Automated Phone Assistance System

    Microsoft Academic Search

    Juan Vera-del-Campo; Ana Gomez-Muro; Miguel Soriano

    2011-01-01

    In a question-driven phone assistance system, if the answer to one question decides the next one, hiding user's answers is not enough to protect her privacy. In this work, we explore an audio streaming mechanism where the assistance system is not aware of the questions that the user retrieves. In addition, we discuss the deployment of these mechanisms on a

  12. Indeterminate Adaptive Digital Audio for Games on Mobiles

    Microsoft Academic Search

    Agnčs Guerraz; Jacques Lemordant

    1 Audio and Games on Mobiles A mobile game is a video game played on a mobile phone. The game market for mobiles is clearly regarded as a market with a future (11), as the multiple investments carried out by the large world editors on this segment testify. The mobiles are true platforms of large and general public games: mobile

  13. An Evaluation of the Audio Workbook System. R & D Report.

    ERIC Educational Resources Information Center

    Andrulis, Richard S.

    The Cassette Review Program (CRP), developed by The American College of Life Underwriters, is organized into 10 sections corresponding to the 10 courses of the American College C.L.U. diploma program. It includes both audio tapes and notebooks. The formative evaluation of the CRP carried out in 1971 resulted in a restructuring of both the tapes…

  14. The method of narrow-band audio classification based on universal noise background model

    NASA Astrophysics Data System (ADS)

    Rui, Rui; Bao, Chang-chun

    2013-03-01

    Audio classification is the basis of content-based audio analysis and retrieval. The conventional classification methods mainly depend on feature extraction of audio clip, which certainly increase the time requirement for classification. An approach for classifying the narrow-band audio stream based on feature extraction of audio frame-level is presented in this paper. The audio signals are divided into speech, instrumental music, song with accompaniment and noise using the Gaussian mixture model (GMM). In order to satisfy the demand of actual environment changing, a universal noise background model (UNBM) for white noise, street noise, factory noise and car interior noise is built. In addition, three feature schemes are considered to optimize feature selection. The experimental results show that the proposed algorithm achieves a high accuracy for audio classification, especially under each noise background we used and keep the classification time less than one second.

  15. Coping with Contamination

    NSDL National Science Digital Library

    Henry Bortman

    This magazine article features an interview with Mars Analog Research and Technology Experiment (MARTE) scientist Carol Stoker. In this third session of the four-part series, Stoker describes how the MARTE team avoids contaminating their drill-core samples. Her team is drilling into the pyrite subsurface of Spain's Rio Tinto in search for microbes existing in an iron-sulfur-based energy system, similar to that of Mars. She describes the technical challenges to be faced in the waterless environment of other-world drilling. The resource includes images from the Mars rover project, links to related web sites, and an MP3 Audio Machine text-to-speech option.

  16. Drilling for Weird Life

    NSDL National Science Digital Library

    Henry Bortman

    This magazine article introduces the Mars Analog Research and Technology Experiment (MARTE). Featuring an interview with NASA scientist Carol Stoker, the article describes Rio Tinto, a river in Spain with highly acidic water the color or red wine, and explains why scientists are looking to the subsurface pyrite deposits near this river's edge for signs of microbial life. Stoker describes the field site and discusses some of the research team's early results. This is the first of a four-part interview series. The resource includes images from Rio Tinto and the Mars project, links to related web sites, and an MP3 Audio Machine text-to-speech option.

  17. Living on Fools Gold

    NSDL National Science Digital Library

    Leslie Mullen

    This magazine article explores the extreme environment of the Rio Tinto, a river in Spain with highly acidic and metal-rich water. The article features the work of Ricardo Amils, a scientist studying the microbial population of the Rio Tinto. Along with others, Amils pays particular attention to chemolithotrophic bacteria that survive by getting their energy by oxidizing pyrite, also known as "fool's gold". He postulates about how these processes might have played out in the ancient earth and draws parallels to the possibility of life on Mars. The resource includes images from the Rio Tinto, links to related web sites, and a MP3 Audio Machine text-to-speech option.

  18. IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, VOL. 10, NO. 5, JULY 2002 293 Musical Genre Classification of Audio Signals

    E-print Network

    Tzanetakis, George

    annotation is performed manually. Automatic musical genre classification can assist or replace the human user musical genre classification provides a frame- work for developing and evaluating features for any type of con- tent-based analysis of musical signals. In this paper, the automatic classification of audio

  19. Deutsch Durch Audio-Visuelle Methode: An Audio-Lingual-Oral Approach to the Teaching of German.

    ERIC Educational Resources Information Center

    Dickinson Public Schools, ND. Instructional Media Center.

    This teaching guide, designed to accompany Chilton's "Deutsch Durch Audio-Visuelle Methode" for German 1 and 2 in a three-year secondary school program, focuses major attention on the operational plan of the program and a student orientation unit. A section on teaching a unit discusses four phases: (1) presentation, (2) explanation, (3)…

  20. Audio-Visual Temporal Recalibration Can be Constrained by Content Cues Regardless of Spatial Overlap.

    PubMed

    Roseboom, Warrick; Kawabe, Takahiro; Nishida, Shin'ya

    2013-01-01

    It has now been well established that the point of subjective synchrony for audio and visual events can be shifted following exposure to asynchronous audio-visual presentations, an effect often referred to as temporal recalibration. Recently it was further demonstrated that it is possible to concurrently maintain two such recalibrated estimates of audio-visual temporal synchrony. However, it remains unclear precisely what defines a given audio-visual pair such that it is possible to maintain a temporal relationship distinct from other pairs. It has been suggested that spatial separation of the different audio-visual pairs is necessary to achieve multiple distinct audio-visual synchrony estimates. Here we investigated if this is necessarily true. Specifically, we examined whether it is possible to obtain two distinct temporal recalibrations for stimuli that differed only in featural content. Using both complex (audio visual speech; see Experiment 1) and simple stimuli (high and low pitch audio matched with either vertically or horizontally oriented Gabors; see Experiment 2) we found concurrent, and opposite, recalibrations despite there being no spatial difference in presentation location at any point throughout the experiment. This result supports the notion that the content of an audio-visual pair alone can be used to constrain distinct audio-visual synchrony estimates regardless of spatial overlap. PMID:23658549

  1. An Audio Compressor/Peak Limiter Circuit -Part III The object of this lab is to test your compressor/limiter with a "real-world" audio signal.

    E-print Network

    Leach Jr.,W. Marshall

    An Audio Compressor/Peak Limiter Circuit - Part III The object of this lab is to test your compressor/limiter with a "real-world" audio signal. Allen Robinson has set up a microphone the oscilloscope. · Verify that your compressor is working before doing the following steps. · Connect the output

  2. Web-enabled 3D talking avatars based on WebGL and HTML5

    E-print Network

    Beskow, Jonas

    Web-enabled 3D talking avatars based on WebGL and HTML5 Jonas Beskow and Kalin Stefanov KTH Speech, in synchrony with text-to-speech synthesis, played back us- ing HTML5 audio functionalty. The implementation in the browser. Keywords: talking avatar, webGL, html5, text-to-speech 1 Introduction The web as a platform

  3. Machine tool locator

    DOEpatents

    Hanlon, John A. (Los Alamos, NM); Gill, Timothy J. (Stanley, NM)

    2001-01-01

    Machine tools can be accurately measured and positioned on manufacturing machines within very small tolerances by use of an autocollimator on a 3-axis mount on a manufacturing machine and positioned so as to focus on a reference tooling ball or a machine tool, a digital camera connected to the viewing end of the autocollimator, and a marker and measure generator for receiving digital images from the camera, then displaying or measuring distances between the projection reticle and the reference reticle on the monitoring screen, and relating the distances to the actual position of the autocollimator relative to the reference tooling ball. The images and measurements are used to set the position of the machine tool and to measure the size and shape of the machine tool tip, and examine cutting edge wear. patent

  4. Machining: An Introduction

    NSDL National Science Digital Library

    Basic machining processes are introduced on this site that is devoted to engineering fundamentals. Descriptions and illustrations of drilling, turning, grinding, and other common processes are provided for people with little to no prior machining knowledge. A waterjet is a non-traditional machining technology that uses high pressure streams of water with abrasive additives rather than solid cutting instruments to slice through metal and other materials.

  5. Quantum Learning Machine

    E-print Network

    Jeongho Bang; James Lim; M. S. Kim; Jinhyoung Lee

    2008-03-31

    We propose a novel notion of a quantum learning machine for automatically controlling quantum coherence and for developing quantum algorithms. A quantum learning machine can be trained to learn a certain task with no a priori knowledge on its algorithm. As an example, it is demonstrated that the quantum learning machine learns Deutsch's task and finds itself a quantum algorithm, that is different from but equivalent to the original one.

  6. Computationally Efficient Clustering of Audio-Visual Meeting Data

    NASA Astrophysics Data System (ADS)

    Hung, Hayley; Friedland, Gerald; Yeo, Chuohao

    This chapter presents novel computationally efficient algorithms to extract semantically meaningful acoustic and visual events related to each of the participants in a group discussion using the example of business meeting recordings. The recording setup involves relatively few audio-visual sensors, comprising a limited number of cameras and microphones. We first demonstrate computationally efficient algorithms that can identify who spoke and when, a problem in speech processing known as speaker diarization. We also extract visual activity features efficiently from MPEG4 video by taking advantage of the processing that was already done for video compression. Then, we present a method of associating the audio-visual data together so that the content of each participant can be managed individually. The methods presented in this article can be used as a principal component that enables many higher-level semantic analysis tasks needed in search, retrieval, and navigation.

  7. Guidelines for the integration of audio cues into computer user interfaces

    SciTech Connect

    Sumikawa, D.A.

    1985-06-01

    Throughout the history of computers, vision has been the main channel through which information is conveyed to the computer user. As the complexities of man-machine interactions increase, more and more information must be transferred from the computer to the user and then successfully interpreted by the user. A logical next step in the evolution of the computer-user interface is the incorporation of sound and thereby using the sense of ''hearing'' in the computer experience. This allows our visual and auditory capabilities to work naturally together in unison leading to more effective and efficient interpretation of all information received by the user from the computer. This thesis presents an initial set of guidelines to assist interface developers in designing an effective sight and sound user interface. This study is a synthesis of various aspects of sound, human communication, computer-user interfaces, and psychoacoustics. We introduce the notion of an earcon. Earcons are audio cues used in the computer-user interface to provide information and feedback to the user about some computer object, operation, or interaction. A possible construction technique for earcons, the use of earcons in the interface, how earcons are learned and remembered, and the affects of earcons on their users are investigated. This study takes the point of view that earcons are a language and human/computer communication issue and are therefore analyzed according to the three dimensions of linguistics; syntactics, semantics, and pragmatics.

  8. Chaotic Boltzmann machines

    PubMed Central

    Suzuki, Hideyuki; Imura, Jun-ichi; Horio, Yoshihiko; Aihara, Kazuyuki

    2013-01-01

    The chaotic Boltzmann machine proposed in this paper is a chaotic pseudo-billiard system that works as a Boltzmann machine. Chaotic Boltzmann machines are shown numerically to have computing abilities comparable to conventional (stochastic) Boltzmann machines. Since no randomness is required, efficient hardware implementation is expected. Moreover, the ferromagnetic phase transition of the Ising model is shown to be characterised by the largest Lyapunov exponent of the proposed system. In general, a method to relate probabilistic models to nonlinear dynamics by derandomising Gibbs sampling is presented. PMID:23558425

  9. Chaotic Boltzmann machines.

    PubMed

    Suzuki, Hideyuki; Imura, Jun-ichi; Horio, Yoshihiko; Aihara, Kazuyuki

    2013-01-01

    The chaotic Boltzmann machine proposed in this paper is a chaotic pseudo-billiard system that works as a Boltzmann machine. Chaotic Boltzmann machines are shown numerically to have computing abilities comparable to conventional (stochastic) Boltzmann machines. Since no randomness is required, efficient hardware implementation is expected. Moreover, the ferromagnetic phase transition of the Ising model is shown to be characterised by the largest Lyapunov exponent of the proposed system. In general, a method to relate probabilistic models to nonlinear dynamics by derandomising Gibbs sampling is presented. PMID:23558425

  10. Sensory dominance in combinations of audio, visual and haptic stimuli

    Microsoft Academic Search

    David Hecht; Miriam Reiner

    2009-01-01

    Participants presented with auditory, visual, or bi-sensory audio–visual stimuli in a speeded discrimination task, fail to\\u000a respond to the auditory component of the bi-sensory trials significantly more often than they fail to respond to the visual\\u000a component—a ‘visual dominance’ effect. The current study investigated further the sensory dominance phenomenon in all combinations\\u000a of auditory, visual and haptic stimuli. We found

  11. Using Audio Time Scale Modification for Video Browsing

    Microsoft Academic Search

    Arnon Amir; Dulce B. Ponceleon; Brian Blanchard; Dragutin Petkovic; Savitha Srinivasan; G. Cohen

    2000-01-01

    In the IBM CueVideo TM project we study various aspects of fully automated video indexing, browsing and retrieval. The technical aspects include audio processing, speech recognition, image processing and information retrieval. Equally important, however, is exploring user expectations and conducting user studies. We focus on the field of video for Training and Education, including Distributed Learning, Remote Education, and Just-in-Time

  12. Non-Local Means for Audio Denoising Arthur Szlam

    E-print Network

    Soatto, Stefano

    1 Non-Local Means for Audio Denoising Arthur Szlam Abstract--The application of the NL of all k Ă? k patches of f0. Denote the patch at pixel j by Pj, where j {1,...,mn}. Fix a variance parameter , and form the mn Ă? mn matrix W(i, j) = e-||Pi-Pj ||2 F/ , (I.1) where `F' is for Frobenious

  13. jetAudio 6.2.8 Basic

    NSDL National Science Digital Library

    2007-01-01

    Contained within a streamlined silver package is jetAudio 6.2.8 Basic. It presents a welcome alternative to other multimedia players, and it allows users to utilize a number of equalizers, speed controls, and of course, the cross-fade option. Additionally, for the truly brave, the application also includes a synchronized lyrics display for karaoke. This version is compatible with computers running Windows 98, Me, 2000, and XP.

  14. Constructing audio-visual representations of consumer archetypes

    Microsoft Academic Search

    Marylouise Caldwell; Paul Henry; Ariell Alman

    2010-01-01

    Purpose – The purpose of this paper is to explain how audio-visual archetypal representations likely to engender emotional identification and consumer-inquisitiveness by marketing professionals can be constructed. Design\\/methodology\\/approach – The paper employs video-ethnography involving the following steps: development of a typology of consumer archetypes based on a priori theory, screening for and identifying informants to exemplify each archetype, filming interviews

  15. A RF front-end for digital audio broadcasting

    Microsoft Academic Search

    Hsiao Wei Su; Yi Ke Cui; Bao Yong Chi; Zhi Hua Wang

    2007-01-01

    A band 3 receiver RF front-end for digital audio broadcasting (DAB) is described in this paper. The front-end integrates most of the functions necessary to receive and down convert band 3 (174~245MHz) signals for further baseband processing, including a variable gain LNA, mixers, VGA, IF amplifiers, and PLL. The overall receiver gain is >90 dB and NF is 4 dB.

  16. Inverse Filter Design for Immersive Audio Rendering Over Loudspeakers

    Microsoft Academic Search

    Athanasios Mouchtaris; Panagiotis Reveliotis; Chris Kyriakakis

    2000-01-01

    Immersive audio systems can be used to render virtual sound sources in three-dimensional (3-D) space around a listener. This is achieved by simulating the head-related transfer function (HRTF) amplitude and phase characteristics using digital filters. In this paper, we examine certain key signal processing considerations in spatial sound rendering over headphones and loudspeakers. We address the problem of crosstalk inherent

  17. A new robust system for 3D audio using loudspeakers

    Microsoft Academic Search

    Darren B. Ward; G. W. Elko

    2000-01-01

    It is well known that the effectiveness of loudspeaker-based 3D audio systems is critically dependent on the listener being in a known position, the so-called “sweet spot”. In this paper we propose a new system that provides increased robustness to perturbations such as head movement, reverberation, and different head shapes. The system is based on using a particular geometry that

  18. An Error - Concealment Technique for Wireless Digital Audio Delivery

    Microsoft Academic Search

    Nicolas Tatlas; Andreas Floros; Thomas Zarouchas; John Mourjopoulos

    2006-01-01

    Real-time digital audio streaming over unreliable wireless IP networks, such as WLANs, encounters playback quality degradation, due to late arrivals or permanent loss of the transmitted packets. In this paper we present a perceptually efficient error concealment technique, which, combined with playback synchronization correction schemes and a high-rate wireless transmission protocol with Quality- of-Service support, can significantly improve the overall

  19. Real-time audio multicasting on bluetooth network

    Microsoft Academic Search

    Sayam Pinkumphi; Anan Phonphoem

    2009-01-01

    Bluetooth has been deployed in many mobile devices nowadays which still lacking of real-time multicast support. In this paper, the real-time audio multicasting protocol has been proposed by using Piconet multicast partitioning and prioritization with BNEP broadcasting scheme in the ACL link. The simulation results show that the system throughput aggregation has been increased. Also the delay and inter-packet time

  20. Long range audio laser communication link in a maritime environment

    NASA Astrophysics Data System (ADS)

    Grant, Kenneth J.; Burris, Harris R.; Moore, Christopher I.; Martinsen, Wayne; Giesbrecht, James; Clare, Bradley A.; Mudge, Kerry A.; Gilbreath, G. Charmaine; Rabinovich, William S.

    2010-04-01

    The Defence Science & Technology Organisation (DSTO), in collaboration with the US Naval Research Laboratory (NRL), has performed long distance experiments on analogue modulated free space optical links across Chesapeake Bay, Maryland. In the present work, pulse frequency modulation was used to transmit audio signals over a distance of 32 km (folded path across the Bay). Still images were transmitted using slow scan television (SSTV) techniques, and a novel technique to decrease the transmission time of SSTV images is presented.

  1. Minimal-impact audio-based personal archives

    Microsoft Academic Search

    Daniel P. W. Ellis; Keansub Lee

    2004-01-01

    Collecting and storing continuous personal archives has become cheap and easy, but we are still farfromcreating a useful, ubiquitous memory aid. We view the inconvenience to the user of being 'instrumented'as one of the key barriers to the broader development and adoption of these technologies. Audio-only recordings,however, can have minimal impact, requiring only that a device the size and weight

  2. Open loop rate-distortion optimized audio coding

    Microsoft Academic Search

    Fredrik Nordén; Mads Grćsbřll Christensen; S. H. Jensen

    2005-01-01

    The paper addresses complexity reduced rate-distortion optimized audio coding under rate constraint. A technique where distortion minimizing coding templates, chosen from a set of templates, are jointly selected for a set of segments. This optimization requires knowledge of rate-distortion pairs for all segments, and for each coding template, which is often costly to obtain. The proposed framework exchanges true rate-distortion

  3. Audio compression with non-uniform modulated complex lapped transform

    E-print Network

    Scheuble, Anne-Sophie Maud

    2000-01-01

    of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by: 7. , s Zixiang Xiong (Chair of Committee) Melv R. Mercer Member) Nitin H. Vaidya (Member) ostas N. Georghiades (Member) anan Singh (Head of Department...'Ingenieurs Electricicns de Grenoble, Institut National Polytechnique dc Grcnoble, France Chair of Advisory Committee: Dr. Zixiang Xiong In the past IO years, advances in audio compression have been tremendous. Lapped Orthogonal Transforms (LOT) and psychoacoustic...

  4. NFL Films audio, video, and film production facilities

    NASA Astrophysics Data System (ADS)

    Berger, Russ; Schrag, Richard C.; Ridings, Jason J.

    2003-04-01

    The new NFL Films 200,000 sq. ft. headquarters is home for the critically acclaimed film production that preserves the NFL's visual legacy week-to-week during the football season, and is also the technical plant that processes and archives football footage from the earliest recorded media to the current network broadcasts. No other company in the country shoots more film than NFL Films, and the inclusion of cutting-edge video and audio formats demands that their technical spaces continually integrate the latest in the ever-changing world of technology. This facility houses a staggering array of acoustically sensitive spaces where music and sound are equal partners with the visual medium. Over 90,000 sq. ft. of sound critical technical space is comprised of an array of sound stages, music scoring stages, audio control rooms, music writing rooms, recording studios, mixing theaters, video production control rooms, editing suites, and a screening theater. Every production control space in the building is designed to monitor and produce multi channel surround sound audio. An overview of the architectural and acoustical design challenges encountered for each sophisticated listening, recording, viewing, editing, and sound critical environment will be discussed.

  5. AudioSense: Enabling Real-time Evaluation of Hearing Aid Technology In-Situ

    PubMed Central

    Hasan, Syed Shabih; Lai, Farley; Chipara, Octav; Wu, Yu-Hsiang

    2014-01-01

    AudioSense integrates mobile phones and web technology to measure hearing aid performance in real-time and in-situ. Measuring the performance of hearing aids in the real world poses significant challenges as it depends on the patient's listening context. AudioSense uses Ecological Momentary Assessment methods to evaluate both the perceived hearing aid performance as well as to characterize the listening environment using electronic surveys. AudioSense further characterizes a patient's listening context by recording their GPS location and sound samples. By creating a time-synchronized record of listening performance and listening contexts, AudioSense will allow researchers to understand the relationship between listening context and hearing aid performance. Performance evaluation shows that AudioSense is reliable, energy-efficient, and can estimate Signal-to-Noise Ratio (SNR) levels from captured audio samples. PMID:25013874

  6. High Capacity Reversible Watermarking for Audio by Histogram Shifting and Predicted Error Expansion

    PubMed Central

    Wang, Fei; Chen, Zuo

    2014-01-01

    Being reversible, the watermarking information embedded in audio signals can be extracted while the original audio data can achieve lossless recovery. Currently, the few reversible audio watermarking algorithms are confronted with following problems: relatively low SNR (signal-to-noise) of embedded audio; a large amount of auxiliary embedded location information; and the absence of accurate capacity control capability. In this paper, we present a novel reversible audio watermarking scheme based on improved prediction error expansion and histogram shifting. First, we use differential evolution algorithm to optimize prediction coefficients and then apply prediction error expansion to output stego data. Second, in order to reduce location map bits length, we introduced histogram shifting scheme. Meanwhile, the prediction error modification threshold according to a given embedding capacity can be computed by our proposed scheme. Experiments show that this algorithm improves the SNR of embedded audio signals and embedding capacity, drastically reduces location map bits length, and enhances capacity control capability. PMID:25097883

  7. 14. Interior, Machine Shop, Roundhouse Machine Shop Extension, Southern Pacific ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. Interior, Machine Shop, Roundhouse Machine Shop Extension, Southern Pacific Railroad Carlin Shops, view to north (90mm lens). - Southern Pacific Railroad, Carlin Shops, Roundhouse Machine Shop Extension, Foot of Sixth Street, Carlin, Elko County, NV

  8. BRITISH MOLDING MACHINE, PBQ AUTOMATIC COPE AND DRAG MOLDING MACHINE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    BRITISH MOLDING MACHINE, PBQ AUTOMATIC COPE AND DRAG MOLDING MACHINE MAKES BOTH MOLD HALVES INDIVIDUALLY WHICH ARE LATER ROTATED, ASSEMBLED, AND LOWERED TO POURING CONVEYORS BY ASSISTING MACHINES. - Southern Ductile Casting Company, Casting, 2217 Carolina Avenue, Bessemer, Jefferson County, AL

  9. Diamond machine tool face lapping machine

    DOEpatents

    Yetter, H.H.

    1985-05-06

    An apparatus for shaping, sharpening and polishing diamond-tipped single-point machine tools. The isolation of a rotating grinding wheel from its driving apparatus using an air bearing and causing the tool to be shaped, polished or sharpened to be moved across the surface of the grinding wheel so that it does not remain at one radius for more than a single rotation of the grinding wheel has been found to readily result in machine tools of a quality which can only be obtained by the most tedious and costly processing procedures, and previously unattainable by simple lapping techniques.

  10. Machine monitoring for turning machine. [Hemispherical workpieces

    SciTech Connect

    Barkman, W.E.; Wieger, G.P.; Woodard, L.M.

    1984-01-10

    This paper describes activities that have occurred to date on a prototype system used to monitor the status of a turning operation that provides high qualtiy hemispherical workpieces. Data are collected from a variety of sensors and used to judge part quality in real time through a comparison with historical data from an on-line computer data base. The techniques developed on this system will be implemented in a precision flexible manufacturing cell that will operate in partly untended mode. A combination of on-machine monitoring and off-machine gaging will ensure that workpieces leaving the cell have in-tolerance characteristics.

  11. RRA: an audio format for single-source music and lyrics

    Microsoft Academic Search

    M. Rao; J. C. Lusth

    2012-01-01

    Karaoke music has world-wide appeal, especially for non-professional singers. However, most karaoke-audio architectures involve separate text and audio data streams which run in different threads. Such an approach suffers from timing synchronization problems. Another drawback is the need for a karaoke system to process at least two different formats: one used for karaoke-text and other used for audio data. To

  12. Adaptive Playout Mechanisms for Packetized Audio Applications in Wide-Area Networks

    Microsoft Academic Search

    Ramachandran Ramjee; James F. Kurose; Donald F. Towsley; Henning Schulzrinne

    1994-01-01

    Recent interest in supporting packet-audio applications over wide area networks has been fueled by theavailability of low-cost, toll-quality workstation audioand the demonstration that limited amounts of interactive audio can be supported by today's Internet. Insuch applications, received audio packets are buffered,and their playout delayed at the destination host in orderto compensate for the variable network delays. Inthis paper we investigate

  13. CSc-165 Spring 2014 Week 12(a) SAGE Audio Package (JOAL-based)

    E-print Network

    Gordon, Scott

    ResourceType.AUDIO_SAMPLE); npcSound = new Sound(resource1, SoundType.SOUND_EFFECT, 100, true); waterSound =new Sound(resource2, SoundType.SOUND_EFFECT, 100, true); npcSound.initialize(audioMgr); waterSound.initialize(audioMgr); npcSoundMgr; Sound waterSound, npcSound; // static and moving sound sources protected void initGame() { init

  14. Spatial Audio on the Web: Or Why Can't I hear Anything Over There?

    NASA Technical Reports Server (NTRS)

    Wenzel, Elizabeth M.; Schlickenmaier, Herbert (Technical Monitor); Johnson, Gerald (Technical Monitor); Frey, Mary Anne (Technical Monitor); Schneider, Victor S. (Technical Monitor); Ahunada, Albert J. (Technical Monitor)

    1997-01-01

    Auditory complexity, freedom of movement and interactivity is not always possible in a "true" virtual environment, much less in web-based audio. However, a lot of the perceptual and engineering constraints (and frustrations) that researchers, engineers and listeners have experienced in virtual audio are relevant to spatial audio on the web. My talk will discuss some of these engineering constraints and their perceptual consequences, and attempt to relate these issues to implementation on the web.

  15. Stirling machine operating experience

    SciTech Connect

    Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

    1994-09-01

    Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

  16. Semantics via Machine Translation

    ERIC Educational Resources Information Center

    Culhane, P. T.

    1977-01-01

    Recent experiments in machine translation have given the semantic elements of collocation in Russian more objective criteria. Soviet linguists in search of semantic relationships have attempted to devise a semantic synthesis for construction of a basic language for machine translation. One such effort is summarized. (CHK)

  17. Machine Translation Project

    NASA Technical Reports Server (NTRS)

    Bajis, Katie

    1993-01-01

    The characteristics and capabilities of existing machine translation systems were examined and procurement recommendations were developed. Four systems, SYSTRAN, GLOBALINK, PC TRANSLATOR, and STYLUS, were determined to meet the NASA requirements for a machine translation system. Initially, four language pairs were selected for implementation. These are Russian-English, French-English, German-English, and Japanese-English.

  18. Automatic soldering machine

    NASA Technical Reports Server (NTRS)

    Stein, J. A.

    1974-01-01

    Fully-automatic tube-joint soldering machine can be used to make leakproof joints in aluminum tubes of 3/16 to 2 in. in diameter. Machine consists of temperature-control unit, heater transformer and heater head, vibrator, and associated circuitry controls, and indicators.

  19. Simple Machines Made Simple.

    ERIC Educational Resources Information Center

    St. Andre, Ralph E.

    Simple machines have become a lost point of study in elementary schools as teachers continue to have more material to cover. This manual provides hands-on, cooperative learning activities for grades three through eight concerning the six simple machines: wheel and axle, inclined plane, screw, pulley, wedge, and lever. Most activities can be…

  20. Compound taper milling machine

    NASA Technical Reports Server (NTRS)

    Campbell, N. R.

    1969-01-01

    Simple, inexpensive milling machine tapers panels from a common apex to a uniform height at panel edge regardless of the panel perimeter configuration. The machine consists of an adjustable angled beam upon which the milling tool moves back and forth above a rotatable table upon which the workpiece is held.

  1. Simple Machine Junk Cars

    ERIC Educational Resources Information Center

    Herald, Christine

    2010-01-01

    During the month of May, the author's eighth-grade physical science students study the six simple machines through hands-on activities, reading assignments, videos, and notes. At the end of the month, they can easily identify the six types of simple machine: inclined plane, wheel and axle, pulley, screw, wedge, and lever. To conclude this unit,…

  2. A Virtual Audio Guidance and Alert System for Commercial Aircraft Operations

    NASA Technical Reports Server (NTRS)

    Begault, Durand R.; Wenzel, Elizabeth M.; Shrum, Richard; Miller, Joel; Null, Cynthia H. (Technical Monitor)

    1996-01-01

    Our work in virtual reality systems at NASA Ames Research Center includes the area of aurally-guided visual search, using specially-designed audio cues and spatial audio processing (also known as virtual or "3-D audio") techniques (Begault, 1994). Previous studies at Ames had revealed that use of 3-D audio for Traffic Collision Avoidance System (TCAS) advisories significantly reduced head-down time, compared to a head-down map display (0.5 sec advantage) or no display at all (2.2 sec advantage) (Begault, 1993, 1995; Begault & Pittman, 1994; see Wenzel, 1994, for an audio demo). Since the crew must keep their head up and looking out the window as much as possible when taxiing under low-visibility conditions, and the potential for "blunder" is increased under such conditions, it was sensible to evaluate the audio spatial cueing for a prototype audio ground collision avoidance warning (GCAW) system, and a 3-D audio guidance system. Results were favorable for GCAW, but not for the audio guidance system.

  3. Dictionary machine (for VLSI)

    SciTech Connect

    Ottmann, T.A.; Rosenberg, A.L.; Stockmeyer, L.J.

    1982-09-01

    The authors present the design of a dictionary machine that is suitable for VLSI implementation, and discusses how to realize this implementation efficiently. The machine supports the operations of search, insert, delete, and extractment on an arbitrary ordered set. Each of these operations takes time o(logn), where n is the number of entries present when the operation is performed. Moreover, arbitrary sequences of these instructions can be pipelined through the machine at a constant rate (i.e. independent of n and the capacity of the machine). The time o(logn) is an improvement over previous VLSI designs of dictionary machines which require time o(log n) per operation, where n is the maximum number of keys that can be stored. 10 references.

  4. From Reduction Machines To Narrowing Machines

    Microsoft Academic Search

    Rita Loogen; RWTH Aachen

    1991-01-01

    Narrowing, the evaluation mechanism of functional logic languages, can be seen as a generalizationof reduction, the evaluation mechanism of purely functional languages. The unidirectionalpattern matching, which is used for parameter passing in functional languages, is simplyreplaced by the bidirectional unification known from logic programming languages. We showin this paper, how to extend a reduction machine, that has been designed for

  5. Machine Learning and Radiology

    PubMed Central

    Wang, Shijun; Summers, Ronald M.

    2012-01-01

    In this paper, we give a short introduction to machine learning and survey its applications in radiology. We focused on six categories of applications in radiology: medical image segmentation, registration, computer aided detection and diagnosis, brain function or activity analysis and neurological disease diagnosis from fMR images, content-based image retrieval systems for CT or MRI images, and text analysis of radiology reports using natural language processing (NLP) and natural language understanding (NLU). This survey shows that machine learning plays a key role in many radiology applications. Machine learning identifies complex patterns automatically and helps radiologists make intelligent decisions on radiology data such as conventional radiographs, CT, MRI, and PET images and radiology reports. In many applications, the performance of machine learning-based automatic detection and diagnosis systems has shown to be comparable to that of a well-trained and experienced radiologist. Technology development in machine learning and radiology will benefit from each other in the long run. Key contributions and common characteristics of machine learning techniques in radiology are discussed. We also discuss the problem of translating machine learning applications to the radiology clinical setting, including advantages and potential barriers. PMID:22465077

  6. DNA-based machines.

    PubMed

    Wang, Fuan; Willner, Bilha; Willner, Itamar

    2014-01-01

    The base sequence in nucleic acids encodes substantial structural and functional information into the biopolymer. This encoded information provides the basis for the tailoring and assembly of DNA machines. A DNA machine is defined as a molecular device that exhibits the following fundamental features. (1) It performs a fuel-driven mechanical process that mimics macroscopic machines. (2) The mechanical process requires an energy input, "fuel." (3) The mechanical operation is accompanied by an energy consumption process that leads to "waste products." (4) The cyclic operation of the DNA devices, involves the use of "fuel" and "anti-fuel" ingredients. A variety of DNA-based machines are described, including the construction of "tweezers," "walkers," "robots," "cranes," "transporters," "springs," "gears," and interlocked cyclic DNA structures acting as reconfigurable catenanes, rotaxanes, and rotors. Different "fuels", such as nucleic acid strands, pH (H?/OH?), metal ions, and light, are used to trigger the mechanical functions of the DNA devices. The operation of the devices in solution and on surfaces is described, and a variety of optical, electrical, and photoelectrochemical methods to follow the operations of the DNA machines are presented. We further address the possible applications of DNA machines and the future perspectives of molecular DNA devices. These include the application of DNA machines as functional structures for the construction of logic gates and computing, for the programmed organization of metallic nanoparticle structures and the control of plasmonic properties, and for controlling chemical transformations by DNA machines. We further discuss the future applications of DNA machines for intracellular sensing, controlling intracellular metabolic pathways, and the use of the functional nanostructures for drug delivery and medical applications. PMID:24647836

  7. 36 CFR 1193.3 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...limited to, Braille, ASCII text, large print, and audio cassette...include, but are not limited to, voice, fax, relay service, TTY, Internet posting, captioning, text-to-speech synthesis, and...equipment that employs interactive text based communications...

  8. Machine Tool Software

    NASA Technical Reports Server (NTRS)

    1988-01-01

    A NASA-developed software package has played a part in technical education of students who major in Mechanical Engineering Technology at William Rainey Harper College. Professor Hack has been using (APT) Automatically Programmed Tool Software since 1969 in his CAD/CAM Computer Aided Design and Manufacturing curriculum. Professor Hack teaches the use of APT programming languages for control of metal cutting machines. Machine tool instructions are geometry definitions written in APT Language to constitute a "part program." The part program is processed by the machine tool. CAD/CAM students go from writing a program to cutting steel in the course of a semester.

  9. Virtual Turing Machine 2

    NSDL National Science Digital Library

    Paul R. C. Ming

    A Turing machine is theoretical computer consisting of a finite set of internal states, a finite alphabet that includes a blank symbol, and a finite set of instructions. It has a physical head and a physical infinitely long tape, which is divided into cells. The cell values consist of the alphabet. The tape has a finite number of non-blank cells. The head can read and write to the cells and move the tape one cell to the left and one cell to the right. The Virtual Turing Machine lets you input tape values and an instruction set to see the output of a turing machine.

  10. Engineering: Simple Machines

    NSDL National Science Digital Library

    2014-09-18

    Simple machines are devices with few or no moving parts that make work easier. Students are introduced to the six types of simple machines — the wedge, wheel and axle, lever, inclined plane, screw, and pulley — in the context of the construction of a pyramid, gaining high-level insights into tools that have been used since ancient times and are still in use today. In two hands-on activities, students begin their own pyramid design by performing materials calculations, and evaluating and selecting a construction site. The six simple machines are examined in more depth in subsequent lessons in this unit.

  11. 16. Interior, Machine Shop, Roundhouse Machine Shop Extension, Southern Pacific ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. Interior, Machine Shop, Roundhouse Machine Shop Extension, Southern Pacific Railroad Carlin Shops, view to south (90mm lens). Note the large segmental-arched doorway to move locomotives in and out of Machine Shop. - Southern Pacific Railroad, Carlin Shops, Roundhouse Machine Shop Extension, Foot of Sixth Street, Carlin, Elko County, NV

  12. 76 FR 57923 - Establishment of Rules and Policies for the Satellite Digital Audio Radio Service in the 2310...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-19

    ...FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 25...Rules and Policies for the Satellite Digital Audio Radio Service...Frequency Band AGENCY: Federal Communications Commission. ACTION: Final...requirements contained in the Satellite Digital Audio Radio...

  13. Audio Engineering Instructor Dr. W. Marshall Leach, Jr., Van Leer E386, 404-894-2963 (Secretarial Assistant: 404-

    E-print Network

    Leach Jr.,W. Marshall

    EE4445 Audio Engineering F 2010 Instructor Dr. W. Marshall Leach, Jr., Van Leer E386, 404.ece.gatech.edu/~mleach/ece4445/ Textbook W. Marshall Leach, Jr., Introduction to Electroacoustics and Audio Amplifier Design, 3rd

  14. Real-Time MCLT Audio Watermarking and Comparison of Several Whitening Methods in Receptor Side Marcado de Agua de Seńales de Audio en Tiempo Real Usando MCLT y la Comparación de Varios Métodos para Decorrelacionar la Seńal en el Receptor

    Microsoft Academic Search

    José García Hernández; Mariko Nakano Miyatake; Héctor Pérez Meana

    2007-01-01

    A Real-Time audio watermarking scheme is proposed, where the strength of audio signal modifications is limited by the requirement of producing an output audio signal that is perceptually equal to the original one. The watermark embedding stage, based on a spread spectrum algorithm operating in the Modulated Complex Lapped Transform (MCLT) domain, inserts a watermark that is generated using a

  15. Audio-Visual Attractors for Capturing Attention to the Screens When Walking in CAVE Systems

    E-print Network

    Boyer, Edmond

    's physical space, such as redirected walking [2], redirection based on change blindness [12], redirectedAudio-Visual Attractors for Capturing Attention to the Screens When Walking in CAVE Systems F walking in a virtual environ- ment, when audio and/or visual attractors are present. The four- sided CAVE

  16. IEEE TRANSACTIONS ON, VOL. X, NO. X, JANUARY 20XX 1 Audio Inpainting

    E-print Network

    Plumbley, Mark

    , in a similar way as for image inpainting (see Fig. 1c). However, in the audio field, such prob- lems have been) of a speech signal (gray). (c) The image inpainting problem: recovery of locally-hidden pixels. Fig. 1IEEE TRANSACTIONS ON, VOL. X, NO. X, JANUARY 20XX 1 Audio Inpainting Amir Adler, Valentin Emiya

  17. Age Matters: Student Experiences with Audio Learning Guides in University-Based Continuing Education

    ERIC Educational Resources Information Center

    Mercer, Lorraine; Pianosi, Birgit

    2012-01-01

    The primary objective of this research was to explore the experiences of undergraduate distance education students using sample audio versions (provided on compact disc) of the learning guides for their courses. The results of this study indicated that students responded positively to the opportunity to have word-for-word audio versions of their…

  18. CUAVE: A new audio-visual database for multimodal human-computer interface research

    Microsoft Academic Search

    E. K. Patterson; S. Gurbuz; Z. Tufekci; J. N. Gowdy

    2002-01-01

    Multimodal signal processing has become an important topic of research for overcoming certain problems of audio-only speech processing. Audio-visual speech recognition is one area with great potential. Difficulties due to background noise and multiple speakers are significantly reduced by the additional information provided by extra visual features. Despite a few efforts to create databases in this area, none has emerged

  19. HMM based structuring of tennis videos using visual and audio cues

    Microsoft Academic Search

    E. Kijak; G. Gravier; P. Gros; L. Oisel; F. Bimbot

    2003-01-01

    This paper focuses on the use of hidden Markov models (HMMs) for structure analysis of videos, and demonstrates how they can be efficiently applied to merge audio and visual cues. Our approach is validated in the particular domain of tennis videos. The basic temporal unit is the video shot. Visual features describe the audio events within a video shot. The

  20. Introduction Lyrics feature sets Experiments Conclusions and future work Combination of Audio &

    E-print Network

    Rauber,Andreas

    covers, music videos 2/23 #12;Introduction Lyrics feature sets Experiments Conclusions and future workIntroduction Lyrics feature sets Experiments Conclusions and future work Combination of Audio & Lyrics Features for Genre Classication in Digital Audio Collections Rudolf Mayer, Andreas Rauber Vienna

  1. SEARCHING FOR MULTIMEDIA: AN ANALYSIS OF AUDIO, VIDEO, AND IMAGE WEB QUERIES

    E-print Network

    Jansen, James

    search engine. From this data set, terms were used to identify queries for audio, image, and video multimedia files by searching for file extensions and matching the filename to terms in the query (WittenSEARCHING FOR MULTIMEDIA: AN ANALYSIS OF AUDIO, VIDEO, AND IMAGE WEB QUERIES Bernard J. Jansen

  2. 47 CFR 73.4275 - Tone clusters; audio attention-getting devices.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Telecommunication 4 2011-10-01 2011-10-01 false Tone clusters; audio attention-getting devices. 73.4275 Section...Rules Applicable to All Broadcast Stations § 73.4275 Tone clusters; audio attention-getting devices. See Public...

  3. 47 CFR 73.4275 - Tone clusters; audio attention-getting devices.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Telecommunication 4 2010-10-01 2010-10-01 false Tone clusters; audio attention-getting devices. 73.4275 Section...Rules Applicable to All Broadcast Stations § 73.4275 Tone clusters; audio attention-getting devices. See Public...

  4. 47 CFR 73.4275 - Tone clusters; audio attention-getting devices.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Telecommunication 4 2014-10-01 2014-10-01 false Tone clusters; audio attention-getting devices. 73.4275 Section...Rules Applicable to All Broadcast Stations § 73.4275 Tone clusters; audio attention-getting devices. See Public...

  5. 47 CFR 73.4275 - Tone clusters; audio attention-getting devices.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Telecommunication 4 2012-10-01 2012-10-01 false Tone clusters; audio attention-getting devices. 73.4275 Section...Rules Applicable to All Broadcast Stations § 73.4275 Tone clusters; audio attention-getting devices. See Public...

  6. 47 CFR 73.4275 - Tone clusters; audio attention-getting devices.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Telecommunication 4 2013-10-01 2013-10-01 false Tone clusters; audio attention-getting devices. 73.4275 Section...Rules Applicable to All Broadcast Stations § 73.4275 Tone clusters; audio attention-getting devices. See Public...

  7. Active Learning in the Online Environment: The Integration of Student-Generated Audio Files

    ERIC Educational Resources Information Center

    Bolliger, Doris U.; Armier, David Des, Jr.

    2013-01-01

    Educators have integrated instructor-produced audio files in a variety of settings and environments for purposes such as content presentation, lecture reviews, student feedback, and so forth. Few instructors, however, require students to produce audio files and share them with peers. The purpose of this study was to obtain empirical data on…

  8. Students' Attitudes to and Usage of Academic Feedback Provided via Audio Files

    ERIC Educational Resources Information Center

    Merry, Stephen; Orsmond, Paul

    2008-01-01

    This study explores students' attitudes to the provision of formative feedback on academic work using audio files together with the ways in which students implement such feedback within their learning. Fifteen students received audio file feedback on written work and were subsequently interviewed regarding their utilisation of that feedback within…

  9. A Portable Audio/Video Recorder for Longitudinal Study of Child Development

    E-print Network

    Roy, Deb

    A Portable Audio/Video Recorder for Longitudinal Study of Child Development Soroush Vosoughi MIT- istic, longitudinal recordings of child development. Categories and Subject Descriptors H.5.2 [User, privacy man- agement, video recorder, audio recorder, child development 1. INTRODUCTION Collection

  10. Report to the Legislature: Audio-Digital MCAS Pilot Program. Line Item 7061-0012

    ERIC Educational Resources Information Center

    Massachusetts Department of Elementary and Secondary Education, 2008

    2008-01-01

    This paper presents the Final Report on the Audio-Digital MCAS Pilot Program. The Department and Recording For the Blind & Dyslexic (RFB&D) have collaborated to provide audio-digital read-aloud editions of the Grade 10 English Language Arts and Mathematics MCAS tests for a small number of students with disabilities such as dyslexia and/or vision…

  11. Audio Control Handbook For Radio and Television Broadcasting. Third Revised Edition.

    ERIC Educational Resources Information Center

    Oringel, Robert S.

    Audio control is the operation of all the types of sound equipment found in the studios and control rooms of a radio or television station. Written in a nontechnical style for beginners, the book explains thoroughly the operation of all types of audio equipment. Diagrams and photographs of commercial consoles, microphones, turntables, and tape…

  12. MULTIBAND SOURCE/FILTER REPRESENTATION OF MULTICHANNEL AUDIO FOR REDUCTION OF INTER-CHANNEL REDUNDANCY

    E-print Network

    Tsakalides, Panagiotis

    }@ics.forth.gr ABSTRACT In this paper we propose a model for multichannel audio recordings that can be utilized realistic acoustic space, adding more sound directions and thus immersing the listener into the acoustic scene. By using a higher number of channels than in stereo systems, multichannel audio recordings

  13. A LOSSLESS AUDIO COMPRESSION SCHEME WITH RANDOM ACCESS PROPERTY , Takehiro Moriya2

    E-print Network

    Wichmann, Felix

    , permanently alters the original recorded sound data and thus inherently reduces audio quality. In contrast of IEEE floating point format [2]. As an important sound format in the audio industry, IEEE floating point to artificially generated full 32-bit floating-point sound files with 48- or 96-kHz sampling frequencies

  14. Designing a Narrative-Based Audio Only 3D Game Engine Timothy Roden *, Ian Parberry

    E-print Network

    Parberry, Ian

    environments is a common goal for many interactive computer games. While PC-based audio only games set games, the current implementation of which uses low-cost existing PC-based hardware and softwareDesigning a Narrative-Based Audio Only 3D Game Engine Timothy Roden *, Ian Parberry Department

  15. Virtual bass for home entertainment, multimedia PC, game station and portable audio systems

    Microsoft Academic Search

    Woon S. Gan; S. M. Kuo; C. W. Toh

    2001-01-01

    In digital audio playback systems for home entertainment, multimedia PC, game station and portable audio devices, there is a strong demand to produce deep bass using small multimedia speakers and earphones, without the need for additional subwoofer or expensive speakers\\/earphones. This paper describes a technique in synthesizing psycho-acoustic bass over a pair of stereo speakers using the pitch perception theory.

  16. Computer Game Audio: The Unappreciated Scholar of the Half-Life Generation

    E-print Network

    Davies, John N.

    multiplayer gaming and new interactive environments as one of the main driving forces in both technology development and the acceptance of gaming as a core social activity. In this paper we provide a historic have contained some element of sound and audio. The complexity of in-game audio and music has grown

  17. Guidelines for the Production of Audio Materials for Print Handicapped Readers.

    ERIC Educational Resources Information Center

    National Library of Australia, Canberra.

    Procedural guidelines developed by the Audio Standards Committee of the National Library of Australia to help improve the overall quality of production of audio materials for visually handicapped readers are presented. This report covers the following areas: selection of narrators and the narration itself; copyright; recording of books, magazines,…

  18. INFERRING SOCIAL CONTEXTS FROM AUDIO RECORDINGS USING DEEP NEURAL Meysam Asgari, Izhak Shafran, Alireza Bayestehtashk

    E-print Network

    Shafran, Izhak

    - ble to record clips of everyday life with relative ease for shar- ing on social media or for archivingINFERRING SOCIAL CONTEXTS FROM AUDIO RECORDINGS USING DEEP NEURAL NETWORKS Meysam Asgari, Izhak ABSTRACT In this paper, we investigate the problem of detecting social contexts from the audio recordings

  19. Towards The All-Digital Audio \\/ Acoustic Chain: Challenges And Solutions

    Microsoft Academic Search

    Nicolas-Alexander Tatlas; Andreas Floros; Panagiotis Hatziantoniou; John N. Mourjopoulos

    2003-01-01

    The obvious advantages of digital audio technology have up to now being manifested mainly in media storage and processing sub-components, witch are parts of a more elaborate audio \\/ acoustic analog reproduction chain. It is envisaged that the remaining components such as cables, amplifiers and transducers will soon be also implemented in digital form, potentially leading to networked, integrated and

  20. The effect of audio-Video quality on learning effectiveness in distance learning over IP networks

    Microsoft Academic Search

    Kazuyoshi Fukaya; Koichiro Noda; Shuji Tasaka; Toshiro Nunome

    2010-01-01

    This paper deals with multimedia distance learning over IP networks and investigates the most suitable presentation style of contents according to communication quality by experiment. We compare three styles of contents: “text”, “text and audio” and “text, audio and video.” For the three presentation styles of contents, we examine how the learning effectiveness of the learners depends on the communication