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Noise characterization and attenuation using linear predictive coding

  • US 10,251,002 B2
  • Filed: 03/21/2016
  • Issued: 04/02/2019
  • Est. Priority Date: 03/21/2016
  • Status: Active Grant
First Claim
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1. A method of operating a hearing assistance device, the method comprising:

  • receiving an audio signal using a microphone of the hearing assistance device;

    identifying and isolating a transient in the audio signal using at least a calculated dynamic threshold value and a pre-set threshold value;

    using linear predictive coding (LPC) to isolate speech segments and non-speech segments of the transient in the audio signal; and

    attenuating the non-speech segments of the transient to reduce annoyance of noise and maintain audibility of perceptually important transients in speech, wherein the calculated dynamic threshold value and the pre-set threshold value are used to set attenuation gain value.

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