子带频谱分析的语音增强

Journal of Applied Sciences ›› 2006, Vol. 24 ›› Issue (3): 232-235.

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Speech Enhancement Using Sub-band Spectral Analysis

XU Jing-bo, YU Hong-tao, RAN Chong-sen

Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China

Received:2005-01-14 Revised:2005-07-08 Online:2006-05-31 Published:2006-05-31

Abstract

Abstract: This paper describes an efficient algorithm for enhancement of speech signals, which is based on estimation of spectral amplitude using an overlap-add FFT filter bank.It can be adjusted to different kinds of noise by means of two parameters.The speech enhancement system requires neither speech pause detection for noise estimation nor VAD (voice activity detection), and overcomes disadvantages existing in single channel noise suppression algorithms.

Key words: FFT filter, VAD, spectral amplitude estimation, noise estimation

CLC Number:

XU Jing-bo, YU Hong-tao, RAN Chong-sen. Speech Enhancement Using Sub-band Spectral Analysis[J]. Journal of Applied Sciences, 2006, 24(3): 232-235.

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Speech Enhancement Using Sub-band Spectral Analysis

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