G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/00 (2006.01) G11B 20/10 (2006.01) H03M 7/30 (2006.01) H04N 7/24 (2006.01)
Patent
CA 2716817
This invention is aimed at providing an encoding-signal-processing method and a device thereof that are able to compress and restore an audio signal at higher efficiency. For the aim of the invention, the disclosed audio-signal-processing method is characterized by comprising the steps of. judging based on primary information whether or not an audio signal type is a music signal; if not, judging based on secondary information whether the audio signal type is a voice signal or a mixed signal; and restoring the audio signal according to a coding method applied to each frame by using coding identification information when the audio signal type is a music signal, a voice signal or a mixed signal. Only the first type information is received if the audio signal type is a music signal, and both the primary information and the secondary information are received if the audio signal type is a voice signal or a mixed signal. Therefore, various audio signals can be encoded and decoded at higher efficiency.
L'invention concerne un procédé de traitement de signal de codage et un dispositif associé permettant de comprimer et de restaurer un signal audio avec une efficacité élevée. L'objet de l'invention est un procédé de traitement de signal audio caractérisé en ce qu'il comprend les étapes consistant à : juger, en fonction d'informations primaires, si un signal audio est un signal de type musical; si ce n'est pas le cas, juger, en fonction d'informations secondaires, si le signal audio est un signal de type vocal ou un signal de type mixte; et restaurer le signal audio selon un procédé de codage appliqué à chaque trame à l'aide d'informations d'identification de codage, lorsque le signal audio est un signal de type musical, vocal ou mixte. Seules les informations primaires sont reçues, si le type de signal audio est un signal musical; et à la fois les informations primaires et secondaires sont reçues, si le signal audio est un signal vocal ou un signal mixte. Ainsi, des signaux audio variés peuvent être codés et décodés avec une efficacité élevée.
Jung Yang Won
Kang Hong Goo
Lee Chang Heon
Oh Hyen O.
Song Jung Wook
Industry-Academic Cooperation Foundation Yonsei University
Lg Electronics Inc.
Smart & Biggar
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