G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/12 (2006.01)
Patent
CA 2636684
A high quality speech is reproduced with a small data amount in speech coding and decoding for performing compression coding and decoding of a speech signal to a digital signal. In speech coding method according to a code-excited linear prediction (CELP) speech coding, a noise level of a speech in a concerning coding period is evaluated by using a code or coding result of at least one of spectrum information, power information, and pitch information, and various excitation codebooks are used based on an evaluation result.
Kirby Eades Gale Baker
Mitsubishi Denki Kabushiki Kaisha
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