D.s.p.c. Technologies Ltd.

Rafael Zack

A noise suppressor is provided which includes a signal to noise ratio (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 &ggr;,(i) per the ith channel. The gain smoother produces a smoothed gain {overscore (&ggr;,+L (i,m))} per the ith channel and the multiplier multiplies each channel of the input signal by its associated smoothed gain {overscore (&ggr;,+L (i,m))}.

Noise suppressor having weighted gain smoothing

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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Giv′at-Shmuel, Israel

Rafael Zack