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Parametric audio system for operation in a saturated air medium

  • US 20050281413A1
  • Filed: 07/13/2005
  • Published: 12/22/2005
  • Est. Priority Date: 08/26/1999
  • Status: Active Grant
First Claim
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1. ) A method for reducing distortion in a decoupled audio wave, comprising:

  • a) creating a double sideband parametric ultrasonic signal that substantially approximates a non-square-rooted modulation envelope; and

    b) emitting a parametric ultrasonic wave that corresponds to the double sideband parametric ultrasonic signal from a parametric loudspeaker at a sufficient amplitude to drive the surrounding air into saturation.

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