METHOD FOR DETECTION OF COMPLICATED SIGNAL ACTIVITY FOR IMPROVED CLASSIFICATION OF SPEECH/NOISE IN AUDIO-SIGNAL Russian patent published in 2005 - IPC

FIELD: audio signal compression technologies.

SUBSTANCE: method includes first determining of whether current audio signal contains information in form of speech or noise, while second determining stage is performed, whether signal contains non-speech data, being important for sensing by listener, and selective cancellation of result of first determination is performed, appropriate for noise, in response to result of second determination, appropriate for non-speech data, being important for sensing by listener.

EFFECT: higher efficiency.

3 cl, 13 dwg