LEADER 06882nam 2200709Ia 450 001 9911019568503321 005 20200520144314.0 010 $a9786612237485 010 $a9781282237483 010 $a1282237489 010 $a9780470994443 010 $a0470994444 010 $a9780470994436 010 $a0470994436 024 7 $a10.1002/9780470994443 035 $a(CKB)1000000000790517 035 $a(EBL)454452 035 $a(SSID)ssj0000354769 035 $a(PQKBManifestationID)11925312 035 $a(PQKBTitleCode)TC0000354769 035 $a(PQKBWorkID)10314687 035 $a(PQKB)11006131 035 $a(MiAaPQ)EBC454452 035 $a(CaBNVSL)mat08039632 035 $a(IDAMS)0b00006485f0d6a8 035 $a(IEEE)8039632 035 $a(OCoLC)441875066 035 $a(PPN)251066061 035 $a(Perlego)2775657 035 $a(EXLCZ)991000000000790517 100 $a20090326d2009 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aSound capture and processing $epractical approaches /$fIvan J. Tashev 210 $aChichester, West Sussex, U.K. ;$aHoboken, NJ $cWiley$d2009 215 $a1 online resource (389 p.) 300 $aIncludes index. 311 08$a9780470319833 311 08$a0470319836 320 $aIncludes bibliographical references and index. 327 $aAbout the Author -- Foreword -- Preface -- Acknowledgements -- 1 Introduction -- 1.1 The Need for, and Consumers of, Sound Capture and Audio Processing Algorithms -- 1.2 Typical Sound Capture System -- 1.3 The Goal of this Book and its Target Audience -- 1.4 Prerequisites -- 1.5 Book Structure -- 1.6 Exercises -- 2 Basics -- 2.1 Noise: Definition, Modeling, Properties -- 2.2 Signal: Definition, Modeling, Properties -- 2.3 Classification: Suppression, Cancellation, Enhancement -- 2.4 Sampling and Quantization -- 2.5 Audio Processing in the Frequency Domain -- 2.6 Bandwidth Limiting -- 2.7 Signal-to-Noise-Ratio: Definition and Measurement -- 2.8 Subjective Quality Measurement -- 2.9 Other Methods for Quality and Enhancement Measurement -- 2.10 Summary -- Bibliography -- 3 Sound and Sound Capturing Devices -- 3.1 Sound and Sound Propagation -- 3.2 Microphones -- 3.3 Omnidirectional and Pressure Gradient Microphones -- 3.4 Parameter Definitions -- 3.5 First-order Directional Microphones -- 3.6 Noise-canceling Microphones and the Proximity Effect -- 3.7 Measurement of Microphone Parameters -- 3.8 Microphone Models -- 3.9 Summary -- Bibliography -- 4 Single-channel Noise Reduction -- 4.1 Noise Suppression as a Signal Estimation Problem -- 4.2 Suppression Rules -- 4.3 Uncertain Presence of the Speech Signal -- 4.4 Estimation of the Signal and Noise Parameters -- 4.5 Architecture of a Noise Suppressor -- 4.6 Optimizing the Entire System -- 4.7 Specialized Noise-reduction Systems -- 4.8 Practical Tips and Tricks for Noise Suppression -- 4.9 Summary -- Bibliography -- 5 Sound Capture with Microphone Arrays -- 5.1 Definitions and Types of Microphone Array -- 5.2 The Sound Capture Model and Beamforming -- 5.3 Terminology and Parameter Definitions -- 5.4 Time-invariant Beamformers -- 5.5 Channel Mismatch and Handling -- 5.6 Adaptive Beamformers -- 5.7 Microphone-array Post-processors -- 5.8 Specific Algorithms for Small Microphone Arrays -- 5.9 Summary -- Bibliography -- 6 Sound Source Localization and Tracking with Microphone Arrays. 327 $a6.1 Sound Source Localization -- 6.2 Sound Source Localization from a Single Frame -- 6.3 Post-processing Algorithms -- 6.4 Practical Approaches and Tips -- 6.5 Summary -- Bibliography -- 7 Acoustic Echo-reduction Systems -- 7.1 General Principles and Terminology -- 7.2 LMS Solution for Acoustic Echo Cancellation -- 7.3 NLMS and RLS Algorithms -- 7.4 Double-talk Detectors -- 7.5 Non-linear Acoustic Echo Cancellation -- 7.6 Acoustic Echo Suppression -- 7.7 Multichannel Acoustic Echo Reduction -- 7.8 Practical Aspects of the Acoustic Echo-reduction Systems -- 7.9 Summary -- Bibliography -- 8 De-reverberation -- 8.1 Reverberation and Modeling -- 8.2 De-reverberation via De-convolution -- 8.3 De-reverberation via Suppression -- 8.4 De-reverberation with Multiple Microphones -- 8.5 Practical Recommendations -- 8.6 Summary -- Bibliography -- Index. 330 $aSound Capture and Processing: Practical Approaches, Ivan Tashev, Microsoft Research, USA Provides state-of-the-art algorithms for sound capture, processing and enhancement Sound Capture and Processing: Practical Approaches covers the digital signal processing algorithms and devices for capturing sounds, mostly human speech. It explores the devices and technologies used to capture, enhance and process sound for the needs of communication and speech recognition in modern computers and communication devices. This book gives a comprehensive introduction to basic acoustics and microphones, with coverage of algorithms for noise reduction, acoustic echo cancellation, dereverberation and microphone arrays; charting the progress of such technologies from their evolution to present day standard. Sound Capture and Processing: Practical Approaches . Brings together the state-of-the-art algorithms for sound capture, processing and enhancement in one easily accessible volume . Provides invaluable implementation techniques required to process algorithms for real life applications and devices . Covers a number of advanced sound processing techniques, such as multichannel acoustic echo cancellation, dereverberation and source separation . Generously illustrated with figures and charts to demonstrate how sound capture and audio processing systems work . An accompanying website containing Matlab code to illustrate the algorithms This invaluable guide will provide audio, R&D and software engineers in the industry of building systems or computer peripherals for speech enhancement with a comprehensive overview of the technologies, devices and algorithms required for modern computers and communication devices. Graduate students studying electrical engineering and computer science, and researchers in multimedia, cell-phones, interactive systems and acousticians will also benefit from this book. 606 $aSpeech processing systems 606 $aSound$xRecording and reproducing$xDigital techniques 606 $aSignal processing$xDigital gechniques 615 0$aSpeech processing systems. 615 0$aSound$xRecording and reproducing$xDigital techniques. 615 0$aSignal processing$xDigital gechniques. 676 $a621.382/8 686 $aST 306$2rvk 700 $aTashev$b Ivan J$g(Ivan Jelev)$01628692 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9911019568503321 996 $aSound capture and processing$93965943 997 $aUNINA