Audio channel translation

H - Electricity – 04 – S

Patent

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Details

H04S 3/00 (2006.01)

Patent

CA 2437764

A process for translating M audio input channels representing a soundfield to N audio output channels representing the same soundfield, wherein each channel is a single audio stream representing audio arriving from a direction, M and N are positive whole integers, and M is at least 2, generates one or more sets of output channels, each set having one or more output channels. Each set is associated with two or more spatially adjacent input channels and each output channel in a set is generated by a process that includes determining a measure of the correlation of the two or more input channels and the level interrelationships of the two or more input channels.

L'invention porte sur un procédé de modulation de canaux d'entrée audio M représentant un champ acoustique pour les convertir en canaux de sortie audio N représentant le même champ acoustique, chaque canal étant un flot de données audio simple représentant un son provenant d'une direction, M et N étant des entiers positifs et M étant au moins égal à 2. Chaque canal a pour mission de générer un ou plusieurs ensemble(s) de canaux de sortie, chaque ensemble comportant un ou plusieurs canaux de sortie et étant associé à au moins deux canaux d'entrée adjacents dans l'espace. Chaque canal de sortie contenu dans un ensemble est obtenu par un procédé qui consiste à déterminer une mesure de la corrélation de deux canaux d'entrée au moins et le niveau de rapport entre deux canaux d'entrée au moins.

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