Envelope-invariant speech coding based on sinusoidal analysis of

Details Envelope-invariant speech coding based on sinusoidal analysis of Envelope-invariant speech coding based on sinusoidal analysis of

1997-11-14

1999-11-09

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704208, 704214, 704262, G01L 302, G01L 914

Patent

active

059831731

ABSTRACT:
To conduct pitch control of a voiced speech signal that is to be coded or decoded, the voiced signal is subjected to sinusoidal analysis coding for each coding unit obtained by dividing the voiced signal on the time axis at a predetermined coding unit. A linear predictive residual of the voiced signal is taken out, and resultant voiced signal coded data are processed. A pitch component of the voiced signal coded data coded by the sinusoidal analysis coding is altered without changing the phonemes by a predetermined computation processing in a pitch conversion unit.

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T.F. Quatieri et al., IEEE Trans. Signal Process., 40(3), 497-510 (1992).

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