A method and an apparatus for processing an audio signal

G - Physics – 10 – L

Patent

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G10L 19/02 (2006.01)

Patent

CA 2708861

A method of processing an audio signal is disclosed. The present invention includes receiving spectral data corresponding to a first band in a frequency band including the first band and a second band, determining a copy band based on frequency information of the copy band corresponding to a partial band of the first band, and generating spectral data of a target band corresponding to the second band using the spectral data of the copy band, wherein the copy band exists in an upper part of the first band.

L'invention concerne un procédé pour traiter un signal audio. Le procédé de l'invention consiste : à recevoir des données spectrales correspondant à une première bande dans une bande de fréquences comprenant la première bande et une deuxième bande; à déterminer une bande de copie en fonction d'informations de fréquence de la bande de copie correspondant à une bande partielle de la première bande; et à générer des données spectrales d'une bande cible correspondant à la deuxième bande au moyen des données spectrales de la bande de copie, cette dernière existant dans une partie supérieure de la première bande.

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