Audio signal encoding method, audio signal decoding method,...

Details Audio signal encoding method, audio signal decoding method,... Audio signal encoding method, audio signal decoding method,...

G - Physics

10

L

G10L 19/14 (2006.01)

Patent

CA 2754404

When a frame immediately preceding an encoding target frame to be encoded by a first encoding unit operating under a linear predictive coding scheme is encoded by a second encoding unit operating under a coding scheme different from the linear predictive coding scheme, the encoding target frame can be encoded under the linear predictive coding scheme by initializing the internal state of the first coding unit, Therefore, encoding processing performed under a plurality of coding schemes including the linear predictive coding scheme and a coding scheme different from the linear predictive coding scheme can be realized.

Lorsque la trame précédant immédiatement une trame à coder par une première unité de codage (13) au moyen du codage à prédiction linéaire est codée par une seconde unité de codage (14) au moyen d'un codage différent du codage à prédiction linéaire, l'état interne de la première unité de codage (13) est initialisé, et la trame codée est donc codée au moyen du codage à prédiction linéaire. Ce faisant, le traitement de codage comprenant le codage à prédiction linéaire et un autre codage différent du codage à prédiction linéaire peuvent être réalisés.

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