Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Patent
1998-01-08
1999-12-14
Dorvil, Richemond
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
704255, G10L 708
Patent
active
060030046
ABSTRACT:
A vocoder based voice recognizer recognizes a spoken word using linear prediction coding (LPC) based, vocoder data without completely reconstructing the voice data. The recognizer generates at least one energy estimate per frame of the vocoder data and searches for word boundaries in the vocoder data using the associated energy estimates. If a word is found, the LPC word parameters are extracted from the vocoder data associated with the word and recognition features are calculated from the extracted LPC word parameters. Finally, the recognition features are matched with previously stored recognition features of other words, thereby to recognize the spoken word.
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Hershkovits Yehudah
Ilan Gabriel
Advanced Recognition Technologies Inc.
Dorvil Richemond
Weitz David J.
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