Discrete multichannel audio with a backward compatible mix

Details Discrete multichannel audio with a backward compatible mix Discrete multichannel audio with a backward compatible mix

H - Electricity

04

S

H04S 3/00 (2006.01)

Patent

CA 2406706

A multichannel audio format provides a truly discrete as well as a backward compatible mix for surround-sound, front or other discrete audio channels in cinema, home theater, or music environments. The additional discrete audio signals are mixed with the existing discrete audio channels into a predetermined format such as the 5.1 audio format. In addition these additional discrete audio channels are encoded and appended to the predetermined format as extension bits (120) in the bitstream (124). The existing base of multichannel decoders (140) can be used in combination with a mix decoder (144) to reproduce truly discrete N.1 multichannel audio.

Cette invention concerne un format audio multicanal qui assure un mélange tant discret que compatible en amont pour le son surround, des canaux audio avant et autre canaux audio discrets pour le cinéma, le home-cinéma ou d'autres environnements musicaux. Les signaux audio discrets supplémentaires sont mélangé avec les canaux audio discrets existants dans un format déterminé tel qu'un format audio 5.1. De plus, ces canaux audio discrets supplémentaires sont codés et annexés au format prédéterminé sous forme de bits d'extension (120) dans le train de bits (124). La base existante de décodeurs multicanal (140) peut être utilisée conjointement avec un décodeur mix (144) pour reproduire un son multicanal N1 discret.

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