Digital Speech – Coding for Low Bit Rate Communication Systems 2e : Coding for Low Bit Rate Communication Systems

Covers various aspects of digital speech coding, from an introduction to the background, sampling and analysis, quantization methods, and coders through to the research in areas such as voice activity detection and speech enhancement.

Building on the success of the first edition Digital Speech offers extensive new, updated and revised material based upon the latest research. This Second Edition continues to provide the fundamental technical background required for low bit rate speech coding and the hottest developments in digital speech coding techniques that are applicable to evolving communication systems. Features new chapters on Pitch Estimation and Voice-Unvoiced Classification of Speech, Harmonic Speech Coding and Multimode Speech CodingPresents a comprehensively revised chapter entitled Analysis by Synthesis LPC Coding including specific examples of popular speech coders such as CELP (Code-Excited Linear Predictive) CodingContains an updated chapter on Efficient LPC Quantization Methods including MSVQ and anti-aliasing filteringDiscusses Voice Activity Detection (VAD) methodsOffers expanded coverage of speech enhancement techniques such as echo cancellation and noise suppression Written by a well-known, highly respected academic, this authoritative volume will be invaluable to practising engineers, network designers, computer scientists and advanced students in communications, electrical and electronic engineering.