Apparatus and method for generating multi-channel...

G - Physics – 10 – L

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G10L 19/14 (2006.01) H04S 5/00 (2006.01)

Patent

CA 2566992

On an encoder-side, a multi-channel audio input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel audio synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.

Côté codeur, un signal d'entrée audio multivoies est analysé pour obtenir une information de commande de filtrage devant servir à la synthèse audio multivoies côté décodeur pour filtrer des paramètres quantifiés transmis ou des valeurs obtenues à partir des paramètres quantifiés transmis dans le but d'obtenir une meilleure qualité audio subjective, en particulier pour les sources ponctuelles à déplacement lent et pour les sources ponctuelles à déplacement rapide qui comportent un matériau tonal, par exemple, les sinusoïdes à déplacement rapide.

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