Excitation vector generating apparatus and speech...

Details Excitation vector generating apparatus and speech... Excitation vector generating apparatus and speech...

2005-08-09

2005-08-09

Ometz, David (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S222000, C704S200000

Reexamination Certificate

active

06928406

ABSTRACT:
The total number of entries of an algebraic codebook is decreased by liming a random code vector generated from the algebraic codebook, and entries of a random codebook with a large number of pulses are assigned to a decreased portion. Further, the number of entries of the decreased portion is adaptively switched according to a mode.

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English tanslation of “Improved Multi-Dispersed-Pulse Based CELP Coding In A Noisy Environment”, Ehara et al.
English translation of JP 2-294700.
English translation of “Low-Bit-Rate Speech Coding With Multi-Dispersed-Pulse-Based Codebook”, Yasunaga et al.
Yasunaga et al., “A Low Bit Rate Speech Coding With Multi Dispersed Pulse Based Codebook” Proceedings of Research Presentation Autumn Meeting in 1998 of the Acoustical Society of Japan (ASJ), 3-2-17 (1998), pp. 281-282 with partial translation.
Yasunaga et al., “Improved Multi-Dispersed-Pulse Based CELP Coding in a Noisy Environment”, Proceedings of Research Presentation Autumn Meeting in 1998 of The Acoustical Society of Japan (ASJ), 3-2-18 (1998), pp. 283-284 with partial translation.

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