Ceva D.s.p. Ltd.

Aviv David

Ofer Shahen Tov

Ofer Schwartz

In a system and method for voice activity detection (VAD) including: obtaining audio frames from a multi-microphone array; calculating steered response power (SRP) values of the audio frames; calculating entropy levels based on the SRP values; detecting a sequence of audio frames in which the entropy levels are substantially constant across the sequence of frames and denoting an entropy level of the sequence as a background entropy; identifying an incoming audio frame as containing voice activity if the difference between a level of entropy of the current audio frame and the background entropy is larger than a first threshold, and as not containing voice activity otherwise.

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Hod-Hasharon, Israel

Aviv David