G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 11/00 (2006.01) G10L 19/14 (2006.01)
Patent
CA 2491570
An indication of the loudness of an audio signal containing speech and other types of audio material is obtained by classifying segments of audio information as either speech or non-speech. The loudness of the speech segments is estimated and this estimate is used to derive the indication of loudness. The indication of loudness may be used to control audio signal levels so that variations in loudness of speech between different programs is reduced. A preferred method for classifying speech segments is described.
On obtient une indication de l'intensité sonore d'un signal audio contenant de la parole et d'autres types de données sonores en classifiant les segments d'informations sonores soit en tant que parole soit en tant que non-parole. L'intensité sonore des segments de parole est estimée et l'estimation est utilisée pour dériver l'indication d'intensité sonore. Cette indication d'intensité sonore peut être utilisée pour régler les niveaux des signaux sonores de manière à réduire les variations d'intensité sonore de la parole entre différentes émissions. L'invention se rapporte à un procédé préféré de classification des segments de parole.
Gundry Kenneth James
Riedmiller Jeffrey Charles
Robinson Charles Quito
Venezia Steven Joseph
Vinton Mark Stuart
Dolby Laboratories Licensing Corporation
Smart & Biggar
LandOfFree
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