Methods and apparatuses for encoding and decoding...

G - Physics – 10 – L

Patent

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G10L 19/00 (2006.01)

Patent

CA 2645909

Provided are an audio encoding method and apparatus and an audio decoding method and apparatus in which audio signals can be encoded or decoded so that sound images can be localized at any desired position for each object audio signal. The audio decoding method includes extracting a downmix signal and object-based side information from an input audio signal; generating rendering information based on input control data; and generating spatial information based on the rendering information and the object-based side information.

L'invention concerne un procédé et un appareil de codage audio et un procédé et un appareil de décodage audio, dans lesquels les signaux audio peuvent être codés ou décodés de manière à ce que les images de sons puissent être localisées dans n'importe quelles positions désirées pour chaque signal audio d'objet. Le procédé de décodage audio consiste à extraire un signal de mixage réducteur et des informations annexes basées sur l'objet d'un signal audio d'entrée; à générer des informations de rendu sur la base de données de commande d'entrée; et à générer des informations spatiales sur la base des informations de rendu et des informations annexes basées sur l'objet.

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