Speech decoding apparatus and method using prediction and...

Details Speech decoding apparatus and method using prediction and... Speech decoding apparatus and method using prediction and...

2007-09-11

2007-09-11

Opsasnick, Michael N (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Synthesis

C704S264000

Reexamination Certificate

active

10239135

ABSTRACT:
The present invention relates to a data processing apparatus capable of obtaining high-quality sound, etc. A tap generation section121generate a prediction tap from synthesized speech data for 40 samples in a subframe of subject data of interest within the synthesized speech data such that speech coded data coded by a CELP method, and synthesized speech data in which a position in the past from a subject subframe by a lag indicated by an L code located in that subject subframe is a starting point. Then, a prediction section125decodes high-quality sound data by performing a predetermined prediction computation by using the prediction tap and a tap coefficient stored in a coefficient memory124. The present invention can be applied to mobile phones for transmitting and receiving speech.

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