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Method and device for acoustic management control of multiple microphones

DC CAFC
  • US 8,315,400 B2
  • Filed: 06/09/2008
  • Issued: 11/20/2012
  • Est. Priority Date: 05/04/2007
  • Status: Active Grant
First Claim
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1. An earpiece comprising:

  • at least one Ambient Sound Microphone (ASM) configured to convert an ambient sound to an ambient sound signal;

    at least one Ear Canal Microphone (ECM) configured to convert an internal sound from an ear canal of a user to an internal sound signal and where the internal sound signal includes an internal voice of the user; and

    a processor operatively coupled to the at least one ASM and the at least one ECM and which receives the ambient sound signal and the internal sound signal, and where the processer is configured to;

    determine a background noise level from at least one of the ambient sound signal or the internal sound signal, and to adjust an amplitude of one or more frequencies of the internal sound signal and the ambient sound signal based on the background noise level, to filter the internal sound signal relative to the ambient sound signal.

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