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Acoustic Signal Processing for Telecommunication / Edition 1

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The current revolution in electronic switching and transport technologies promises a dramatic increase in the intimacy and satisfaction that users will experience over imminent telecommunications networks. However, unless there is a corresponding improvement in the technologies of the acoustics of telecommunications, this promise will soon prove empty. The sense of presence that people feel when together in a room is largely due to the psycho-acoustic cues they sense from the human binaural hearing system evolved over millennia. Modern acoustic signal processing is just now beginning to be able to deliver that same experience to users remotely located from each other. This includes the ability to communicate in full duplex with wider bandwidths and multiple audio streams (e.g. stereo, 3D audio). It also involves locating and separating audio sources, suppressing noise, and using sound to automatically steer video cameras.
Acoustic Signal Processing for Telecommunication presents digital signal processing techniques for telecommunications acoustics that are both cutting-edge and practical. Each chapter presents material that has not appeared in book form before and yet is easily realizable in today's technology. To this end, both new theory and new implementation techniques are presented. Topics include new adaptive filtering algorithms, multi-channel acoustic echo cancellation, noise control, virtual sound, sound source localization for camera tracking, source separation, and microphone arrays.

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Table of Contents

List of Figures. List of Tables. Preface. Contributing Authors. 1. An Introduction to Acoustic Echo and Noise Control; S.L. Gay, J. Benesty. Part I: Mono-Channel Acoustic Echo Cancellation. 2. The Fast Affine Projection Algorithm; S.L. Gay. 3. Subband Acoustic Echo Cancellation Using the FAP-RLS Algorithm: Fixed-Point Implementation Issues; M. Ghanassi, B. Champagne. 4. Real-Time Implementation of the Exact Block NLMS Algorithm for Acoustic Echo Control in Hands-Free Telephone Systems; B.H. Nitsch. 5. Double-Talk Detection Schemes for Acoustic Echo Cancellation; T. Gänsler, J. Benesty, S.L. Gay. Part II: Multi-Channel Acoustic Echo Cancellation. 6. Multi-Channel Sound, Acoustic Echo Cancellation, and Multi-Channel Time-Domain Adaptive Filtering; J. Benesty, T. Gänsler, P. Eneroth. 7. Multi-Channel Frequency-Domain Adaptive Filtering; J. Benesty, D.R. Morgan. 8. A Real-time Stereophonic Acoustic Subband Echo Canceler; P. Eneroth, S.L. Gay, T. Gänsler, J. Benesty. Part III: Noise Reduction Techniques with a Single Microphone. 9. Subband Noise Reduction Methods for Speech Enhancement; E.J. Diethorn. Part IV: Microphone Arrays. 10. Superdirectional Microphone Arrays; G.W. Elko. 11. Microphone Arrays for Video Camera Steering; Yiteng Huang, J. Benesty, G.W. Elko. 12. Nonlinear, Model-Based Microphone Array Speech Enhancement; M.S. Brandstein, S.M. Griebel. Part V: Virtual Sound. 13. 3D Audio and Virtual Acoustical Environment Synthesis; Jiashu Chen.14. Virtual Sound Using Loudspeakers: Robust Acoustic Crosstalk Cancellation; D.B. Ward, G.W. Elko. Part VI: Blind Source Separation. 15. An Introduction to Blind Source Separation of Speech Signals; J. Benesty. Index.

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