Telecommunication By Speech
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Assessment And Prediction Of Speech Quality In Telecommunications
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Author : Sebastian Möller
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Assessment And Prediction Of Speech Quality In Telecommunications written by Sebastian Möller and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The quality of a telecommunication voice service is largely inftuenced by the quality of the transmission system. Nevertheless, the analysis, synthesis and prediction of quality should take into account its multidimensional aspects. Quality can be regarded as a point where the perceived characteristics and the desired or expected ones meet. A schematic is presented which classifies different entities which contribute to the quality of a service, taking into account conversational, user as weIl as service related contributions. Starting from this concept, perceptively relevant constituents of speech communication quality are identified. The perceptive factors result from ele ments of the transmission configuration. A simulation model is developed and implemented which allows the most relevant parameters of traditional trans mission configurations to be manipulated, in real time and for the conversation situation. Inputs into the simulation are instrumentally measurable quality elements commonly used in transmission planning of telephone networks. A reduced set of these quality elements forms a basis for models which aim at predicting mouth-to-ear quality as it would be perceived by a user of the sys tem. These models are an important tool for the planner of telecommunication networks, as they allow the expected quality to be estimated in advance, even before the network has been set up. Two well-known models (the SUBMOD and the E-model) are analyzed in more detail, with an emphasis on the psy choacoustic and psychophysical backgrounds.
Telecommunication By Speech
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Author : D. L. Richards
language : en
Publisher: Halsted Press
Release Date : 1973
Telecommunication By Speech written by D. L. Richards and has been published by Halsted Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Technology & Engineering categories.
Speech Communication
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Author : Douglas O'Shaughnessy
language : en
Publisher: Reading, Mass. : Addison-Wesley Publishing Company
Release Date : 1987
Speech Communication written by Douglas O'Shaughnessy and has been published by Reading, Mass. : Addison-Wesley Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Computers categories.
Combined Source And Channel Coding Of Speech For Telecommunications Microform
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Author : Guowen Yang
language : en
Publisher: National Library of Canada = Bibliothèque nationale du Canada
Release Date : 1990
Combined Source And Channel Coding Of Speech For Telecommunications Microform written by Guowen Yang and has been published by National Library of Canada = Bibliothèque nationale du Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Coding theory categories.
Voice Communication Between Humans And Machines
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Author : for the National Academy of Sciences
language : en
Publisher: National Academies Press
Release Date : 1994-02-01
Voice Communication Between Humans And Machines written by for the National Academy of Sciences and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-02-01 with Technology & Engineering categories.
Science fiction has long been populated with conversational computers and robots. Now, speech synthesis and recognition have matured to where a wide range of real-world applicationsâ€"from serving people with disabilities to boosting the nation's competitivenessâ€"are within our grasp. Voice Communication Between Humans and Machines takes the first interdisciplinary look at what we know about voice processing, where our technologies stand, and what the future may hold for this fascinating field. The volume integrates theoretical, technical, and practical views from world-class experts at leading research centers around the world, reporting on the scientific bases behind human-machine voice communication, the state of the art in computerization, and progress in user friendliness. It offers an up-to-date treatment of technological progress in key areas: speech synthesis, speech recognition, and natural language understanding. The book also explores the emergence of the voice processing industry and specific opportunities in telecommunications and other businesses, in military and government operations, and in assistance for the disabled. It outlines, as well, practical issues and research questions that must be resolved if machines are to become fellow problem-solvers along with humans. Voice Communication Between Humans and Machines provides a comprehensive understanding of the field of voice processing for engineers, researchers, and business executives, as well as speech and hearing specialists, advocates for people with disabilities, faculty and students, and interested individuals.
Speech Technology At Work
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Author : Jack Hollingum
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Speech Technology At Work written by Jack Hollingum and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Technology & Engineering categories.
Speech technology - the use of speech as a means of sending information to, and receiving information from computer systems has been in use as a research tool for many years. Only recently has it begun to move out of the laboratory and into commercially worthwhile applications, first with compressed and synthesised spoken messages, then with computer recognition of spoken messages, and today with diverse applications involving both recognition and reproduction of human speech. We have written this book because we believe the technology has now advanced to the point where many more applications of voice recognition and response are both feasible and economically attractive. Computers that can understand everyday speech are still a distant prospect, but provided the limitations of present day equipment are clearly understood there is much that can be achieved with it. Our aim is to show, in non-technical language, what is now possible with the help of speech technology. The text includes many examples of current applications in industry, commerce and other fields, and we have selected five current industrial applications combining speech recognition and response for more detailed attention. Industrial cases have been chosen both because we see industry as an important growth area for speech applications in the next few years, and because it presents some of the greatest difficulties in speech recognition - if you can make it work in industry, then you can make it work almost anywhere.
Speech Processing In Mobile Environments
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Author : K. Sreenivasa Rao
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-01-28
Speech Processing In Mobile Environments written by K. Sreenivasa Rao and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-28 with Technology & Engineering categories.
This book focuses on speech processing in the presence of low-bit rate coding and varying background environments. The methods presented in the book exploit the speech events which are robust in noisy environments. Accurate estimation of these crucial events will be useful for carrying out various speech tasks such as speech recognition, speaker recognition and speech rate modification in mobile environments. The authors provide insights into designing and developing robust methods to process the speech in mobile environments. Covering temporal and spectral enhancement methods to minimize the effect of noise and examining methods and models on speech and speaker recognition applications in mobile environments.
Communication And Telecommunication Needs Of The Speech Impaired
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Author : Canada. Department of Communications. Extension of Services Policy Division
language : en
Publisher:
Release Date : 1983
Communication And Telecommunication Needs Of The Speech Impaired written by Canada. Department of Communications. Extension of Services Policy Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Communication devices for people with disabilities categories.
Dimension Based Quality Modeling Of Transmitted Speech
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Author : Marcel Wältermann
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-01-03
Dimension Based Quality Modeling Of Transmitted Speech written by Marcel Wältermann and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-03 with Technology & Engineering categories.
In this book, speech transmission quality is modeled on the basis of perceptual dimensions. The author identifies those dimensions that are relevant for today's public-switched and packet-based telecommunication systems, regarding the complete transmission path from the mouth of the speaker to the ear of the listener. Both narrowband (300-3400 Hz) as well as wideband (50-7000 Hz) speech transmission is taken into account. A new analytical assessment method is presented that allows the dimensions to be rated by non-expert listeners in a direct way. Due to the efficiency of the test method, a relatively large number of stimuli can be assessed in auditory tests. The test method is applied in two auditory experiments. The book gives the evidence that this test method provides meaningful and reliable results. The resulting dimension scores together with respective overall quality ratings form the basis for a new parametric model for the quality estimation of transmitted speech based on the perceptual dimensions. In a two-step model approach, instrumental dimension models estimate dimension impairment factors in a first step. The resulting dimension estimates are combined by a Euclidean integration function in a second step in order to provide an estimate of the total impairment.
Proceedings Of The Eleventh International Symposium On Human Factors In Telecommunications
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Author :
language : en
Publisher: Information Gatekeepers Inc
Release Date : 1985
Proceedings Of The Eleventh International Symposium On Human Factors In Telecommunications written by and has been published by Information Gatekeepers Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Technology & Engineering categories.