Device and method for generating an encoded stereo signal of...

H - Electricity – 04 – S

Patent

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H04S 3/00 (2006.01) G10L 19/00 (2006.01)

Patent

CA 2599969

Disclosed is a device for generating an encoded stereo signal from a multichannel representation. Said device comprises a multichannel decoder (11) which creates three or more multichannels from at least one base channel and parameter data. The three or more multichannels are subjected to headphone processing (12) in order to create an uncoded first stereo channel and an uncoded second stereo channel which are then fed to a stereo encoder (13) so as to generate an encoded stereo file at the output end. The encoded stereo file can be fed to any suitable playback unit in the form of a CD player or a hardware player such that a user of a playback unit obtains a multichannel impression as well as a normal stereo impression.

Dispositif de production d'un signal stéréo codé à partir d'une représentation multivoie, qui comporte un décodeur multivoie (11) produisant trois multivoies ou plus à partir d'au moins une voie de base et d'informations de paramètres. Les trois multivoies ou plus sont soumises à un traitement (12) de signaux d'écouteur pour produire une première voie stéréo non codée et une seconde voie stéréo non codée qui sont ensuite envoyées à un codeur stéréo (13) pour produire du côté de la sortie un fichier stéréo codé. Le fichier stéréo codé peut être envoyé à tout appareil de reproduction approprié sous forme d'un lecteur de CD ou d'un lecteur matériel, si bien qu'un utilisateur de l'appareil de reproduction obtient non seulement une impression stéréo normale, mais aussi une impression multivoie.

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