Speech recognition based on HMMs
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United States of America Patent
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Aug 24, 1999
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N/A
app pub date -
Jun 5, 1997
filing date -
May 30, 1994
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Expired
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Abstract
A speech recognition method that combines HMMs and vector quantization to model the speech signal and adds spectral derivative information in the speech parameters. Each state of a HMM is modeled by two different VQ-codebooks. One is trained by using the spectral parameters and the second is trained by using the spectral derivative parameters.
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