Linear predictive analysis-by-synthesis encoding method and...

Details Linear predictive analysis-by-synthesis encoding method and... Linear predictive analysis-by-synthesis encoding method and...

G - Physics

10

L

G10L 19/12 (2006.01) G10L 19/08 (2006.01)

Patent

CA 2344302

A linear predictive analysis-by-synthesis encoder includes a search algorithm block (50) and a vector quantizer (58) for vector quantizing optimal gains from a plurality of subframes in a frame. The internal encoder states are updated using (50, 52, 54, 56) the vector quantized gains.

L'invention porte sur un procédé de codage prédictif linéaire à analyse/synthèse, et codeur associé comportant un bloc (50) d'algorithmes de recherche et un dispositif (58) de quantification vectorielle des gains optimaux de l'ensemble des sous trames d'une trame. Les états intérieur du codeur sont actualisés à l'aide (50, 52, 54, 56) des gains vectoriels quantifiés.

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