Method for preparation of source-coded data, and transmitter...

H - Electricity – 04 – H

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H04H 20/72 (2008.01) G10L 21/00 (2006.01)

Patent

CA 2379017

Audio data from a useful signal source (1) are separated (2) into a main data stream (HD) and an auxiliary data stream (ZD). The main data stream (HD) contains at least the amount of information that is required for a comprehensive reproduction of at least one useful signal source (1). Main- and auxiliary data stream are transmitted in different channels (K1, K2) within a predetermined channel raster. It is possible to increase the reproduction quality of the audio signal within a predetermined channel raster.

L'invention concerne un procédé dans lequel des données audio d'une source de signaux utiles (1) sont séparées (2) en un flux de données principal (HD) et un flux de données secondaire (ZD). Le flux de données principal (HD) contient au moins autant d'informations que nécessaire pour une restitution compréhensible d'au moins une source de signaux utiles (1). Les flux de données principal et secondaire sont transmis dans des canaux différents (K1, K2) à l'intérieur d'une plage d'attribution de canaux prédéfinie. La qualité de restitution du signal audio peut ainsi être augmentée à l'intérieur d'une plage d'attribution de canaux prédéfinie.

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