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Active Noise Reduction Adaptive Filter Leakage Adjusting

  • US 20080095383A1
  • Filed: 06/26/2006
  • Published: 04/24/2008
  • Est. Priority Date: 06/26/2006
  • Status: Active Grant
First Claim
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1. A method for operating an active noise reduction system comprising:

  • providing filter coefficients for an adaptive filter in response to a noise signal;

    determining leakage factors;

    smoothing the leakage factors to provide smoothed leakage factors; and

    applying the smoothed leakage factors to the filter coefficients to provide modified filter coefficients.

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