The system and method of the invention relates to voice detection technology for determining instants of time at which a snapshot of noise characteristics results in improved adaptation of noise floors used in voice detection. The approach is based on the "lower envelope" of the smoothed input signal...http://www.google.fr/patents/US5991718?utm_source=gb-gplus-shareBrevet US5991718 - System and method for noise threshold adaptation for voice activity detection in nonstationary noise environments
System and method for noise threshold adaptation for voice activity ...
