Method and apparatus for detecting speech activity using cepstrum vectors
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United States of America Patent
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Jan 21, 1997
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N/A
app pub date -
Dec 31, 1992
filing date -
Dec 31, 1992
priority date (Note) -
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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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