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Speech and Audio Coding for Wireless and Network Applications : The Springer International Engineering and Computer Science - Bishnu S. Atal

Speech and Audio Coding for Wireless and Network Applications

The Springer International Engineering and Computer Science

By: Bishnu S. Atal (Editor), Vladimir Cuperman (Editor), Allen Gersho (Editor)

Hardcover Published: December 2009
ISBN: 9780792393450
Number Of Pages: 283

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Speech and Audio Coding for Wireless and Network Applications contains 34 chapters, loosely grouped into six topical areas. The chapters in this volume reflect the progress and present the state of the art in low-bit-rate speech coding, primarily at bit rates from 2.4 kbit/s to 16 kbit/s. Together they represent important contributions from leading researchers in the speech coding community. Speech and Audio Coding for Wireless and Network Applications contains contributions describing technologies that are under consideration as standards for such applications as digital cellular communications (the half-rate American and European coding standards). A brief Introduction is followed by a section dedicated to low-delay speech coding, a research direction which emerged as a result of the CCITT requirement for a universal low-delay 16 kbit/s speech coding technology and now continues with the objective of achieving toll quality with moderate delay at a rate of 8 kbit/s. A section on the important topic of speech quality evaluation is then presented. This is followed by a section on speech coding for wireless transmission, and a section on audio coding which covers not only 7 kHz bandwidth speech, but also wideband coding applicable to high fidelity music. The book concludes with a section on speech coding for noisy transmission channels, followed by a section addressing future research directions. Speech and Audio Coding for Wireless and Network Applications presents a cross-section of the key contributions in speech and audio coding which have emerged recently. For this reason, the book is a valuable reference for all researchers and graduate students in the speech coding community.

High Quality Low-Delay Speech Coding at 12 kb/sp. 5
Low Delay Speech Coder at 8 kbit/s with Conditional Pitch Predictionp. 11
Low Delay Coding of Speech and Audio Using Nonuniform Band Filter Banksp. 19
8 kb/s Low-Delay CELP Coding of Speechp. 25
Lattice Low Delay Vector Excitation for 8 kb/s Speech Codingp. 33
Subjective Assessment Methods for the Measurement of Digital Speech Coder Qualityp. 43
Speech Quality Evaluation of the European, North-American and Japanese Speech Coding Standards for Digital Cellular Systemsp. 55
A Comparison of Subjective Methods for Evaluating Speech Qualityp. 59
Delayed Decision Coding of Pitch and Innovation Signals in Code-Excited Linear Prediction Coding of Speechp. 69
Variable Rate Speech Coding for Cellular Networksp. 77
QCELP: A Variable Rate Speech Coder for CDMA Digital Cellularp. 85
Performance and Optimization of a GSM Half Rate Candidatep. 93
Joint Design of Multi-Stage VQ Codebooks for LSP Quantization with Applications to 4 kbit/s Speech Codingp. 101
Waveform Interpolation in Speech Codingp. 111
A Wideband CELP Coder at 16 kbit/s for Real Time Applicationsp. 121
Multirate STC and Its Application to Multi-Speaker Conferencingp. 127
Low Delay Coding of Wideband Speech at 32 Kbps Using Tree Structuresp. 133
A Two-Band CELP Audio Coder at 16 Kbit/s and Its Evaluationp. 141
9.6 kbit/s ACELP Coding of Wideband Speechp. 147
High Fidelity Audio Coding with Generalized Product Code VQp. 153
On Noisy Channel Quantizer Design for Unequal Error Protectionp. 163
Channel Coding Schemes for the GSM Half-Rate Systemp. 171
Combined Source-Channel Coding of LSP Parameters Using Multi-Stage Vector Quantizationp. 181
Vector Quantization of LPC Parameters in the Presence of Channel Errorsp. 191
Error Control and Index Assignment for Speech Codecsp. 203
Efficient Techniques for Determining and Encoding the Long Term Predictor Lags for Analysis-by-Synthesis Codersp. 211
Structured Stochastic Codebook and Codebook Adaptation for CELPp. 217
Efficient Multi-Tap Pitch Prediction for Stochastic Codingp. 225
QR Factorization in the CELP Coderp. 231
Efficient Frequency-Domain Representation of LPC Excitationp. 239
Product Code Vector Quantization of LPC Parametersp. 251
A Mixed Excitation LPC Vocoder with Frequency-Dependent Voicing Strengthp. 259
Adaptive Predictive Coding with Transform Domain Quantizationp. 265
Finite-State VQ Excitations for CELP Codersp. 271
Author Indexp. 277
Indexp. 279
Table of Contents provided by Blackwell. All Rights Reserved.

ISBN: 9780792393450
ISBN-10: 0792393457
Series: The Springer International Engineering and Computer Science
Audience: General
Format: Hardcover
Language: English
Number Of Pages: 283
Published: December 2009
Country of Publication: US
Dimensions (cm): 23.39 x 15.6  x 1.75
Weight (kg): 0.59

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