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Systems, methods, and apparatus for indicating direction of arrival

  • US 9,360,546 B2
  • Filed: 03/15/2013
  • Issued: 06/07/2016
  • Est. Priority Date: 04/13/2012
  • Status: Active Grant
First Claim
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1. A method of indicating a direction of arrival of a sound, said method comprising:

  • calculating a first estimate, with respect to an axis of a first microphone array, of the direction of arrival;

    calculating a second estimate, with respect to an axis of a second microphone array that is different than the axis of the first microphone array, of the direction of arrival;

    determining an orientation, with reference to a world reference axis, of a device that includes the first and second microphone arrays; and

    based on the first and second estimates and the determined orientation, calculating a projection of the direction of arrival onto a projection plane that does not include the direction of arrival.

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