Voice enhancement system and method

Details Voice enhancement system and method Voice enhancement system and method

H - Electricity

04

M

H04M 3/40 (2006.01) H03G 3/20 (2006.01) H03G 5/22 (2006.01) H04M 3/00 (2006.01)

Patent

CA 2241903

A system (130) for providing enhancement to a voice-band signal in a telecommunications network (138) is provided. The present system (130) includes a power averager (18) for determining the average power of the voice- band signal. The present system (130) also includes an equalizer (132) for attenuating a predetermined portion of the voice-band signal and an output scaler (134) for scaling the equalized voice-band signal with a scaling factor. The system (130) of the present invention also includes an automatic gain enhancer (136) for applying an automatic gain factor to the scaled voice- band signal and wherein the automatic gain factor is dependent upon the average power of the input voice-band signal.

L'invention concerne un système (130) permettant d'améliorer un signal en fréquence vocale dans un réseau de télécommunication (138). Ce système (130) comprend un moyenneur de puissance (18) pour déterminer la puissance moyenne du signal vocal, ainsi qu'un égaliseur (132) pour atténuer une partie prédéterminée du signal vocal, et un dispositif d'étalement de sortie (134) pour étaler le signal vocal égalisé selon un facteur scalaire. Le système de l'invention (130) comprend en outre un dispositif d'amélioration automatique de gain (136) pour appliquer un facteur de gain automatique au signal vocal égalisé, dans lequel le facteur de gain dépend de la puissance moyenne du signal vocal d'entrée.

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