Method and apparatus for detecting speech activity using cepstru

Details Method and apparatus for detecting speech activity using cepstru Method and apparatus for detecting speech activity using cepstru

1992-12-31

1997-01-21

MacDonald, Allen R.

395 259, 395 262, 395 264, G10L 506, G10L 900

Patent

active

055966802

ABSTRACT:
A method and apparatus for detecting speech activity in an input signal. The present invention includes performing begin point detection using power/zero crossing. Once the begin point has been detected, the present invention uses the cepstrum of the input signal to determine the endpoint of the sound in the signal. After both the beginning and ending of the sound are detected, the present invention uses vector quantization distortion to classify the sound as speech or noise.

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