Voice Compression and Communications: Principles and Applications for Fixed and Wireless Channels

In stock
Author : Lajos Hanzo, F.Clare A.Somerville, Jason P.Woodward
ISBN 13 : 9788126541195
Pages : 672
Type : Hardbound



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 Linear 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.
Author Index.


Lajos Hanzo has coauthored five books on mobile radio communications and published more than 300 research papers on a variety of topics in wireless multimedia communications. He holds a chair in telecommunications at the Department of Electronics and Computer Science, University of Southampton, UK and he is an IEEE Distinguished Lecturer.

F. Clare A. Somerville is with the Global Wireless Systems Research Department, Bell Laboratories, Swindon, UK. His current research involves real-time techniques for transmission of voice over GPRS and the resultant speech quality attained.

Jason P. Woodard is with UbiNetics Ltd. where he is responsible for the development and implementation of various algorithms for third-generation mobile communications products.



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