Method and apparatus for removing noise from electronic signals

G - Physics – 10 – L

Patent

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G10L 21/02 (2006.01)

Patent

CA 2465552

A method and system for removing acoustic noise removal from human speech is described. Acoustic noise is removed regardless of noise type, amplitude, or orientation. The system includes a processor coupled among microphones and a voice activation detection ("VAD") element. The processor executes denoising algorithms that generate transfer functions. The processor receives acoustic data from the microphones and data from the VAD. The processor generates various transfer functions when the VAD indicates voicing activity and when the VAD indicates no voicing activity. The transfer functions are used to generate a denoised data stream.

L'invention concerne un procédé et un système permettant d'éliminer des bruits acoustiques (figure 5) de sons vocaux humains. Les bruits acoustiques sont éliminés en dépit du type, de l'amplitude ou de l'orientation des bruits. Ce système comprend un processeur (30) couplé parmi des microphones (1, 2) et un élément de détection d'activation vocale (104). Ledit processeur permet d'exécuter des algorithmes de débruitage qui engendrent des fonctions de transfert. Ce processeur (30) permet de recevoir des données acoustiques à partir des microphones (1, 2) et des données provenant de l'élément de détection d'activation vocale (104). Ledit processeur permet d'engendrer diverses fonctions de transfert, lorsque l'élément de détection d'activation vocale indique l'activité de sons vocaux et lorsque ledit élément n'indique pas d'activité de sons vocaux. Les fonctions de transfert sont utilisées pour générer un flux de données exempt de bruit.

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