Speech parameter coding and decoding methods, coder and...

Details Speech parameter coding and decoding methods, coder and... Speech parameter coding and decoding methods, coder and...

G - Physics

10

L

G10L 19/00 (2006.01) G10L 19/12 (2006.01)

Patent

CA 2430111

In vector coding and decoding of LSP parameters of moving average type speech, it is structured that a vector of a spectrum corresponding to a stationary noise interval, or, further, a vector from which a mean vector found in advance is subtracted, is stored as one vector C0 in a vector codebook 14A, so that a spectrum corresponding to a silent interval or stationary noise can be outputted as one of code vectors.

Lors du codage et décodage d'un paramètre acoustique, un vecteur pondéré est obtenu par multiplication d'une sortie de vecteur code d'une trame passée et d'un vecteur code sélectionné dans la trame présente par pondération des facteurs respectivement sélectionnés dans un livre de codes facteurs et par addition des produits les uns aux autres.

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