CONTROLLING LOUDNESS OF SPEECH IN SIGNALS THAT CONTAIN SPEECH AND OTHER TYPES OF AUDIO MATERIAL

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 loudnes...

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Bibliographische Detailangaben
1. Verfasser: RIEDMILLER, JEFFREY, CHARLES
Format: Patent
Sprache:eng ; spa
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Zusammenfassung: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. Una indicacion de la sonoridad de una senal de audio que contiene voz y otros tipos de material de audio, se obtiene clasificando segmentos de informacion de audio, ya sea como voz se estima y este estimado se usa para derivar la indicacion de la sonoridad. La indicacion de la sonoridad puede ser usada para controlar niveles de la senal de audio, de manera tal que se reduzcan las variaciones en la sonoridad de la voz entre diferentes programas. Se describe un metodo de la voz entre diferentes programas. Se describe un metodo preferido para clasificar segmentos de voz.