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Methods and apparatuses for capturing an audio signal based on a location of the signal

  • US 8,233,642 B2
  • Filed: 05/04/2006
  • Issued: 07/31/2012
  • Est. Priority Date: 08/27/2003
  • Status: Active Grant
First Claim
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1. A method comprising:

  • detecting an initial listening zone wherein the initial listening zone represents an initial area monitored for sounds by a microphone array being positioned at a first location;

    detecting an initial sound within the initial listening zone; and

    adjusting the initial listening zone and forming an adjusted listening zone having an adjusted area monitored for sounds by the microphone array being positioned at the first location, wherein the initial sound emanates from within the adjusted listening zone;

    wherein the initial listening zone is adjusted by modifying a set of finite impulse response filter coefficients for the microphone array.

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