Apparatus for transmitting synthesized speech with high quality

Details Apparatus for transmitting synthesized speech with high quality Apparatus for transmitting synthesized speech with high quality

1996-04-18

1999-12-21

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704221, 704222, G01L 302

Patent

active

060061774

ABSTRACT:
The invention provides a speech coding apparatus wherein a perceptual weighting filter is realized with a comparatively small amount of calculation. The speech coding apparatus includes a weighting circuit which in turn includes a coefficient code book in which weighting coefficients are stored, a coefficient determination section which selects and outputs one of the weighting coefficients which corresponds to a short-term prediction code, and a weighting section for performing weighting calculation of a speech signal with the selected weighting coefficient.

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M.R. Schroeder et al., "Code-Excited Linear Prediction (CELP): High-Quality Speech at Very Low Bit Rates", ICASSP Proceedings 85, 1985, pp. 937-940.

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