Method and apparatus for processing audio information using...

Details Method and apparatus for processing audio information using... Method and apparatus for processing audio information using...

H - Electricity

04

N

H04N 5/04 (2006.01) H04N 7/52 (2006.01)

Patent

CA 2323564

An audio signal processor forms gaps or guard bands in sequences of blocks conveying encoded audio information and time aligns the guard bands with video information. The guard bands are formed to allow for variations in processing or circuit delays so that the routing or switching of different streams of video information with embedded audio information does not result in a loss of any encoded audio blocks.

La présente invention consiste à faire ménager par un processeur de signal audio des intervalles ou des bandes de garde dans des séquences de blocs véhiculant des informations audio codée. L'invention consiste ensuite à faire réaliser par ce processeur de signal audio un calage temporel des bandes de garde sur l'information vidéo. On ménage ces bandes de garde pour laisser une certaine marge en raison des variations affectant les temps de traitement ou de circuit. On recherche à cet effet à éviter que l'acheminement ou la commutation de différents flux d'information vidéo dans lesquels se logent des informations audio n'aboutisse à la perte de blocs audio codés.

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