G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 21/02 (2006.01) G10L 11/02 (2006.01) H04S 3/00 (2006.01)
Patent
CA 2720636
In one embodiment the present invention includes a method of improving audibility of speech in a multi-channel audio signal. The method includes comparing a first characteristic and a second characteristic of the multi-channel audio signal to generate an attenuation factor. The first characteristic corresponds to a first channel of the multi-channel audio signal that contains speech and non-speech audio, and the second characteristic corresponds to a second channel of the multi-channel audio signal that contains predominantly non-speech audio. The method further includes adjusting the attenuation factor according to a speech likelihood value to generate an adjusted attenuation factor. The method further includes attenuating the second channel using the adjusted attenuation factor.
Dans un mode de réalisation, la présente invention concerne un procédé consistant à améliorer laudibilité vocale dans un signal audio à canaux multiples. Le procédé comprend la comparaison dune première caractéristique et dune seconde caractéristique du signal audio à canaux multiples pour générer un facteur datténuation. La première caractéristique correspond à un premier canal du signal audio à canaux multiples qui contient un signal audio vocal et non vocal, et la seconde caractéristique correspond à un second canal dudit signal qui contient de façon prédominante un signal audio non vocal. Le procédé comprend en outre lajustement du facteur datténuation selon une valeur de probabilité vocale afin de générer un facteur datténuation ajusté. Le procédé comprend en outre latténuation du second canal à laide du facteur datténuation ajusté.
Dolby Laboratories Licensing Corporation
Oyen Wiggs Green & Mutala Llp
LandOfFree
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