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Method and apparatus for processing audio signal and audio playback system

  • US 9,154,879 B2
  • Filed: 03/15/2013
  • Issued: 10/06/2015
  • Est. Priority Date: 05/31/2012
  • Status: Active Grant
First Claim
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1. A method for processing an audio signal, the method comprising:

  • generating a beamforming signal on a horizontal plane related to a sound source in a three-dimensional (3D) space; and

    modulating the beamforming signal to be directed to a listener in the 3D space from the sound source,wherein the modulating of the beamforming signal comprises;

    modulating the beamforming signal using the beamforming signal on the horizontal plane and a beam angle in relation to the sound source and the listener, andapplying a difference value based on the beamforming signal on the horizontal plane and the beam angle.

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