Apparatus and method for speech signal analysis

Details Apparatus and method for speech signal analysis Apparatus and method for speech signal analysis

1994-12-29

1997-10-21

Zele, Krista M.

Telephonic communications

Special services

Anonymous party

395 22, 395 226, 395 228, 395 263, 395 265, 379 58, G10L 302, G10L 914, G10L 506

Patent

active

056805063

ABSTRACT:
The present invention provides a novel method of analyzing speech signals in order to reduce the computational power required to perform both speech compression and voice recognition operations. Digital speech signals are provided to a speech analyzer which generates a linear predictive coded (LPC) speech analysis signal that is compatible for use in both the voice recognition circuit and the speech compression circuit. The speech analysis signal is then provided to the compression circuit, which further processes the signal into a form used by an encoder and then the encoder encodes the processed signal. The same speech analysis signal is also provided to a voice recognition circuit, which further processes the signal into a form used by a recognizer and then the recognizer performs recognition on the processed signal.

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