Method and system for speech processing with greatly reduced har

Details Method and system for speech processing with greatly reduced har Method and system for speech processing with greatly reduced har

1997-04-29

1999-12-14

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704205, 704209, 704220, G10L 302

Patent

active

060030003

ABSTRACT:
A method and system for representing speech with greatly reduced harmonic and intermodulation distortion using a fixed interval scale, known as Tru-Scale. Speech is reproduced in accordance with a frequency matrix which reduces intermodulation interference and harmonic distortion (overtone collision). Enhanced speech quality and reduced noise results from increasing the signal-to-noise ratio in the processed speech signal. The method and system use an Auto-Regressive (AR) modeling technique, using, among other approaches, Linear Predictive Coding (LPC) analysis. In accordance with another aspect of the invention, a Fourier transform-based modeling technique also is used. The application of the system to speech coders also is contemplated.

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