Voice Compression and Communications: Principles and Applications for Fixed and Wireless Channels
暫譯: 語音壓縮與通信:固定及無線通道的原則與應用
Lajos Hanzo, F. Clare A. Somerville, Jason P. Woodward
- 出版商: IEEE
- 出版日期: 2001-09-11
- 售價: $1,127
- 語言: 英文
- 頁數: 672
- 裝訂: Hardcover
- ISBN: 0471150398
- ISBN-13: 9780471150398
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商品描述
Up-to-date, expert coverage of topics in wireless voice
communications
Voice communication is the most important facet of mobile
radio service. Even when the predicted surge of wireless data and Internet
services becomes a reality, voice will remain the most natural means of human
communication.
Voice Compression and Communications details issues in
wireless voice communications and treats compression, channel coding, and
wireless transmission as a joint subject. Part I covers background material,
whereas Part II provides detailed information on both proprietary and
standardized analysis-by-synthesis codecs, including the speech codecs of
virtually all existing wireline-based and wireless systems. Parts III and IV
discuss mainly research-based wideband, audio, as well as very low-rate schemes
likely to find their way into future standards.
Voice Compression and
Communications describes fundamental concepts in a non-mathematical way early in
the book for those with only a background knowledge of signal processing and
communications. More advanced readers will find detailed discussions of
theoretical principles, future concepts, and solutions to various specific
wireless voice communications problems.
Table of Contents
Preface.
Acknowledgments.
PART I: SPEECH SIGNALS AND WAVEFORM CODING.
Speech Signals and Introduction to Speech Coding.
Predictive Coding.
PART II: ANALYSIS BY SYNTHESIS CODING.
Analysis-by-Synthesis Principles.
Speech Spectral Quantization.
Regular Pulse Excited Coding.
Forward-Adaptive Code Excited Lineaar Prediction.
Standard Forward-Adaptive CELP Codecs.
Backward-Adaptive Code Excited Linear Prediction.
PART III: WIDEBAND CODING AND TRANSMISSION.
Wideband Speech Coding.
PART IV: VERY LOW-RATE CODING AND TRANSMISSION.
Overview of Low-Rate Speech Coding.
Linear Predictive Vocoder.
Wavelets and Pitch Detection.
Zinc Function Excitation.
Mixed-Multiband Excitation.
Sinusoidal Transform Coding Below 4 kbps.
Conclusions on Low-Rate Coding.
Comparison of Speech Codecs and Transceivers.
Appendix A: Constructing the Quadratic Spline Wavelets.
Appendix B: Zinc Function Excitation.
Appendix C: Probability Density Function for Amplitudes.
Bibliography.
Index.
Author Index.
商品描述(中文翻譯)
最新的專家覆蓋無線語音通訊主題
語音通訊是行動無線服務中最重要的面向。即使預測中的無線數據和互聯網服務的激增成為現實,語音仍將是人類最自然的溝通方式。
《語音壓縮與通訊》詳細說明了無線語音通訊中的問題,並將壓縮、通道編碼和無線傳輸視為一個聯合主題。第一部分涵蓋背景材料,而第二部分提供有關專有和標準化分析合成編解碼器的詳細信息,包括幾乎所有現有有線和無線系統的語音編解碼器。第三部分和第四部分主要討論基於研究的寬頻音頻以及非常低比特率的方案,這些方案可能會進入未來的標準。《語音壓縮與通訊》在書的早期以非數學的方式描述基本概念,適合那些只有信號處理和通訊背景知識的讀者。更高級的讀者將會發現有關理論原則、未來概念以及各種特定無線語音通訊問題的解決方案的詳細討論。
目錄
前言
致謝
第一部分:語音信號與波形編碼
語音信號與語音編碼簡介
預測編碼
第二部分:分析合成編碼
分析合成原則
語音頻譜量化
正脈衝激勵編碼
前向自適應碼激勵線性預測
標準前向自適應CELP編解碼器
後向自適應碼激勵線性預測
第三部分:寬頻編碼與傳輸
寬頻語音編碼
第四部分:非常低比特率編碼與傳輸
低比特率語音編碼概述
線性預測語音編碼器
小波與音高檢測
鋅函數激勵
混合多頻帶激勵
低於4 kbps的正弦變換編碼
低比特率編碼的結論
語音編解碼器與收發器的比較
附錄A:構建二次樣條小波
附錄B:鋅函數激勵
附錄C:振幅的概率密度函數
參考文獻
索引
作者索引