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Waveguide electroacoustical transducing

  • US 8,615,097 B2
  • Filed: 09/28/2012
  • Issued: 12/24/2013
  • Est. Priority Date: 02/21/2008
  • Status: Active Grant
First Claim
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1. A loudspeaker assembly, comprising:

  • an acoustic waveguide;

    an acoustic driver mounted to the waveguide so that a first surface radiates sound waves into the waveguide so that the sound waves are radiated from the waveguide and so that a second surface radiates sound waves to the environment through a path that does not include the waveguide; and

    a closed acoustic volume acoustically coupled to the acoustic waveguide by an opening in the waveguide,wherein the wall and the opening comprise a continuous surface; and

    wherein the opening and the acoustic volume are dimensioned and positioned to increase the amplitude of the sound waves radiated from the acoustic waveguide at a wavelength at which radiation from the waveguide and radiation from the second surface of the acoustic driver destructively interfere.

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