Speech message code modifying arrangement

Details Speech message code modifying arrangement Speech message code modifying arrangement

G - Physics

10

L

354/54

G10L 21/04 (2006.01)

Patent

CA 1226676

- 39 - Abstract An arrangement for coding a speech pattern includes generating a time frame sequence of speech parameter signals for the pattern. Each time frame speech parameter signal comprises a set of spectral representative signals such as reflection coefficient signals and a multipulse excitation signal. Voiced excitation intervals of the speech pattern are identified and the excitation signals of selected voiced intervals are modified. Such modification includes substituting the excitation signal of one of a sequence of voiced intervals for the excitation signals of the remaining intervals of the sequence to compress the speech pattern coding or selectively modifying voiced interval excitation signals to alter speaking rate or intonation.

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