Adaptive energy limiting for transient noise suppression

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United States of America Patent

PATENT NO 11694706
SERIAL NO

17566950

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Abstract

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The present disclosure describes aspects of adaptive energy limiting for transient noise suppression. In some aspects, an adaptive energy limiter sets a limiter ceiling for an audio signal to full scale and receives a portion of the audio signal. For the portion of the audio signal, the adaptive energy limiter determines a maximum amplitude and evaluates the portion with a neural network to provide a voice likelihood estimate. Based on the maximum amplitude and the voice likelihood estimate, the adaptive energy limiter determines that the portion of the audio signal includes noise. In response to determining that the portion of the audio signal includes noise, the adaptive energy limiter decreases the limiter ceiling and provides the limiter ceiling to a limiter module effective to limit an amount of energy of the audio signal. This may be effective to prevent audio signals from carrying full energy transient noise into conference audio.

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Patent Owner(s)

  • GOOGLE LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lindstrom, John Fredric Stockholm, SE 6 10
Sonning, Carl Samuel Stockholm, SE 2 4

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