G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/00 (2006.01)
Patent
CA 2645911
The present invention relates to a method and apparatus for encoding and decoding object- based audio signals. This audio decoding method includes extracting a first audio signal and a first audio parameter in which a music object are encoded on a channel basis and a second audio signal and a second audio parameter in which a vocal object are encoded on an object basis, from an audio signal, generating a third audio signal by employing at least one of the first and second audio signals, and generating a multi-channel audio signal by employing at least one of the first and second audio parameters and the third audio signal. Accordingly, the amount of calculation in encoding and decoding processes and the size of a bitstream that is encoded can be reduced efficiently.
La présente invention concerne un procédé et un appareil permettant de coder et de décoder des signaux audio basés sur des objets. Le procédé de décodage audio selon l'invention consiste : à extraire d'un signal audio un premier signal audio et un premier paramètre audio contenant un objet musical faisant l'objet d'un codage par canal, et un deuxième signal audio et un deuxième paramètre audio contenant un objet vocal faisant l'objet d'un codage par objet; à générer un troisième signal audio à l'aide du premier signal audio et/ou du deuxième signal audio; et à générer un signal audio multicanal à l'aide du premier paramètre audio et/ou du second paramètre audio et du troisième signal audio. Ainsi, l'invention permet de réduire efficacement le nombre de calculs nécessaires aux processus de codage et de décodage, ainsi que la taille d'un train de bits codé.
Kim Dong Soo
Lee Hyun Kook
Lim Jae Hyun
Pang Hee Suk
Yoon Sung Yong
Lg Electronics Inc.
Smart & Biggar
LandOfFree
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