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Microphone Interference Detection Method and Apparatus

  • US 20110317848A1
  • Filed: 06/23/2010
  • Published: 12/29/2011
  • Est. Priority Date: 06/23/2010
  • Status: Abandoned Application
First Claim
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1. A method for detecting microphone interference comprising:

  • receiving a first microphone signal from a first microphone;

    receiving a second microphone signal from a second microphone;

    filtering the first microphone signal to produce a first low-frequency-band signal;

    filtering the second microphone signal to produce a second low-frequency-band signal;

    calculating a low-frequency-band energy value from the first low-frequency-band signal and the second low-frequency-band signal when the first low-frequency-band signal'"'"'s magnitude is above a first predetermined threshold and the second low-frequency band signal'"'"'s magnitude is above a second predetermined threshold; and

    producing a first output signal indicating microphone wind noise when the low-frequency-band energy value exceeds a predetermined low-frequency-band energy threshold.

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