Acoustic Echo And Noise Control
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Acoustic Echo And Noise Control
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Author : Eberhard Hänsler
language : en
Publisher: John Wiley & Sons
Release Date : 2005-02-04
Acoustic Echo And Noise Control written by Eberhard Hänsler and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-02-04 with Science categories.
Authors are well known and highly recognized by the "acoustic echo and noise community." Presents a detailed description of practical methods to control echo and noise Develops a statistical theory for optimal control parameters and presents practical estimation and approximation methods
Topics In Acoustic Echo And Noise Control
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Author : Eberhard Hänsler
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-08-26
Topics In Acoustic Echo And Noise Control written by Eberhard Hänsler 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 2006-08-26 with Technology & Engineering categories.
This book treats important topics in "Acoustic Echo and Noise Control" and reports the latest developments. Methods for enhancing the quality of transmitted speech signals are gaining growing attention in universities and in industrial development laboratories. This book, written by an international team of highly qualified experts, concentrates on the modern and advanced methods.
Acoustic Echo And Noise Control
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Author : Eberhard Hänsler
language : en
Publisher: Wiley
Release Date : 2015-09-21
Acoustic Echo And Noise Control written by Eberhard Hänsler and has been published by Wiley this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-21 with Science categories.
This book is based on the monograph Acoustic Echo and Noise Control, which was published by Wiley (2004). The information has been revised and updated with important new information included. The book contains fundamental analysis of new topics such as bandwidth extension and speech enhancement by partial signal reconstruction. Emphasis is put on entire systems such as speech dialog systems and in-car communication systems. The latter record the speech of the driver and the passenger in a car, process these signals to get rid of background and feedback components, and finally play them back via loudspeakers located close to the backseat passengers.
Proceedings
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Author : Shoji Makino
language : en
Publisher:
Release Date : 2003
Proceedings written by Shoji Makino and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Noise Reduction In Speech Applications
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Author : Gillian M. Davis
language : en
Publisher: CRC Press
Release Date : 2018-10-03
Noise Reduction In Speech Applications written by Gillian M. Davis and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-03 with Technology & Engineering categories.
Noise and distortion that degrade the quality of speech signals can come from any number of sources. The technology and techniques for dealing with noise are almost as numerous, but it is only recently, with the development of inexpensive digital signal processing hardware, that the implementation of the technology has become practical. Noise Reduction in Speech Applications provides a comprehensive introduction to modern techniques for removing or reducing background noise from a range of speech-related applications. Self-contained, it starts with a tutorial-style chapter of background material, then focuses on system aspects, digital algorithms, and implementation. The final section explores a variety of applications and demonstrates to potential users of the technology the results possible with the noise reduction techniques presented. The book offers chapters contributed by international experts, a practical, systems approach, and numerous references. For electrical, acoustics, signal processing, communications, and bioengineers, Noise Reduction in Speech Applications is a valuable resource that shows you how to decide whether noise reduction will solve problems in your own systems and how to make the best use of the technologies available.
Advances In Network And Acoustic Echo Cancellation
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Author : J. Benesty
language : en
Publisher: Springer Science & Business Media
Release Date : 2001-04-10
Advances In Network And Acoustic Echo Cancellation written by J. Benesty 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 2001-04-10 with Computers categories.
This book brings together many advanced topics in network and acoustic echo cancellation aimed towards enhancing the echo cancellation performance of next-generation telecommunication systems. The resulting compendium provides a coherent treatment of such topics not found otherwise in journals or other books.
Acoustic Echo Sounding As Related To Air Pollution In Urban Environments
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Author : W. R. Simmons
language : en
Publisher:
Release Date : 1971
Acoustic Echo Sounding As Related To Air Pollution In Urban Environments written by W. R. Simmons and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Air categories.
The feasibility of operating an acoustic echo sounder in an urban or industrial environment, without serious degradation in performance and without contributing to noise pollution, is confirmed. Anechoic absorbers placed about the acoustic antenna are the key to improving the sounder performance. Optimum operating frequencies are between 1 and 2 kHz. The design and operation of the all solid state circuitry is described.
Speech And Audio Processing In Adverse Environments
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Author : Eberhard Hänsler
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-07-22
Speech And Audio Processing In Adverse Environments written by Eberhard Hänsler 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 2008-07-22 with Technology & Engineering categories.
Users of signal processing systems are never satis?ed with the system they currently use. They are constantly asking for higher quality, faster perf- mance, more comfort and lower prices. Researchers and developers should be appreciative for this attitude. It justi?es their constant e?ort for improved systems. Better knowledge about biological and physical interrelations c- ing along with more powerful technologies are their engines on the endless road to perfect systems. This book is an impressive image of this process. After “Acoustic Echo 1 and Noise Control” published in 2004 many new results lead to “Topics in 2 Acoustic Echo and Noise Control” edited in 2006 . Today – in 2008 – even morenew?ndingsandsystemscouldbecollectedinthisbook.Comparingthe contributions in both edited volumes progress in knowledge and technology becomesclearlyvisible:Blindmethodsandmultiinputsystemsreplace“h- ble” low complexity systems. The functionality of new systems is less and less limited by the processing power available under economic constraints. The editors have to thank all the authors for their contributions. They cooperated readily in our e?ort to unify the layout of the chapters, the ter- nology, and the symbols used. It was a pleasure to work with all of them. Furthermore, it is the editors concern to thank Christoph Baumann and the Springer Publishing Company for the encouragement and help in publi- ing this book.
Acoustic Mimo Signal Processing
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Author : Yiteng Huang
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-11-22
Acoustic Mimo Signal Processing written by Yiteng Huang 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 2006-11-22 with Technology & Engineering categories.
Telecommunication systems and human-machine interfaces have begun using multiple microphones and loudspeakers to render interaction more lifelike, and more efficient. This raises acoustic signal processing problems under multiple-input multiple-output (MIMO) scenarios, encompassing distant speech acquisition, sound source localization and tracking, echo and noise control, source separation and speech dereverberation, and many others. The book opens with an acoustic MIMO paradigm, establishing fundamentals, and linking acoustic MIMO signal processing with classical signal processing and communication theories. The second part of the book presents a novel analysis of acoustic applications carried out in the paradigm to reinforce the fundamentals of acoustic MIMO signal processing.
Acoustic Signal Processing For Telecommunication
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Author : Steven L. Gay
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Acoustic Signal Processing For Telecommunication written by Steven L. Gay 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 Technology & Engineering categories.
158 2. Wiener Filtering 159 3. Speech Enhancement by Short-Time Spectral Modification 3. 1 Short-Time Fourier Analysis and Synthesis 159 160 3. 2 Short-Time Wiener Filter 161 3. 3 Power Subtraction 3. 4 Magnitude Subtraction 162 3. 5 Parametric Wiener Filtering 163 164 3. 6 Review and Discussion Averaging Techniques for Envelope Estimation 169 4. 169 4. 1 Moving Average 170 4. 2 Single-Pole Recursion 170 4. 3 Two-Sided Single-Pole Recursion 4. 4 Nonlinear Data Processing 171 5. Example Implementation 172 5. 1 Subband Filter Bank Architecture 172 173 5. 2 A-Posteriori-SNR Voice Activity Detector 5. 3 Example 175 6. Conclusion 175 Part IV Microphone Arrays 10 Superdirectional Microphone Arrays 181 Gary W. Elko 1. Introduction 181 2. Differential Microphone Arrays 182 3. Array Directional Gain 192 4. Optimal Arrays for Spherically Isotropic Fields 193 4. 1 Maximum Gain for Omnidirectional Microphones 193 4. 2 Maximum Directivity Index for Differential Microphones 195 4. 3 Maximimum Front-to-Back Ratio 197 4. 4 Minimum Peak Directional Response 200 4. 5 Beamwidth 201 5. Design Examples 201 5. 1 First-Order Designs 202 5. 2 Second-Order Designs 207 5. 3 Third-Order Designs 216 5. 4 Higher-Order designs 221 6. Optimal Arrays for Cylindrically Isotropic Fields 222 6. 1 Maximum Gain for Omnidirectional Microphones 222 6. 2 Optimal Weights for Maximum Directional Gain 224 6. 3 Solution for Optimal Weights for Maximum Front-to-Back Ratio for Cylindrical Noise 225 7. Sensitivity to Microphone Mismatch and Noise 230 8.