Noise suppressor having weighted gain smoothing

Details Noise suppressor having weighted gain smoothing Noise suppressor having weighted gain smoothing

1998-06-22

2000-07-11

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

381 943, 704226, G10L 2102

Patent

active

060886684

ABSTRACT:
A noise suppressor is provided which includes a signal to noise ration (SNR) determiner, a channel gain determiner, a gain smoother and a multiplier. The SNR determiner determines the SNR per channel of the input signal. The channel gain determiner determines a channel gain .gamma..sub.ch (i) per the ith channel. The gain smoother produces a smoothed gain .gamma..sub.ch (i,m) per the ith channel and the multiplier multiplies each channel of the input signal by its associated smoothed gain .gamma..sub.ch (i,m).

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