Chapter 12. Signal Enhancement via Spectral Amplitude Estimation

  1. Saeed V. Vaseghi Professor

Published Online: 18 MAR 2009

DOI: 10.1002/9780470740156.ch12

Advanced Digital Signal Processing and Noise Reduction, Fourth Edition

Advanced Digital Signal Processing and Noise Reduction, Fourth Edition

How to Cite

Vaseghi, S. V. (2008) Signal Enhancement via Spectral Amplitude Estimation, in Advanced Digital Signal Processing and Noise Reduction, Fourth Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9780470740156.ch12

Author Information

  1. Department of Electronics & Computer Engineering, Brunel University, London, UK

Publication History

  1. Published Online: 18 MAR 2009
  2. Published Print: 6 FEB 2008

ISBN Information

Print ISBN: 9780470754061

Online ISBN: 9780470740156

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Keywords:

  • spectral amplitude estimation and signal restoration systems;
  • minimum mean squared error (MMSE) cost function;
  • power spectrum subtraction or squared-magnitude spectrum subtraction;
  • SNR-dependent subtraction factor;
  • DFT-based spectral subtraction - block processing algorithm;
  • Bayesian MMSE spectral amplitude estimation;
  • signal to noise ratio estimation;
  • speech restoration and recognition application

Summary

This chapter contains sections titled:

  • Introduction

  • Spectral Subtraction

  • Bayesian MMSE Spectral Amplitude Estimation

  • Estimation of Signal to Noise Ratios

  • Application to Speech Restoration and Recognition

  • Summary

  • Bibliography