Apparatus for absorbing acoustical energy and use thereof

  • US 8,191,678 B2
  • Filed: 01/12/2007
  • Issued: 06/05/2012
  • Est. Priority Date: 01/19/2006
  • Status: Active Grant
First Claim
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1. composite acoustic panel for absorbing acoustical sound waves directed at a microphone located proximate to the composite acoustic panel, the composite acoustic panel comprising:

  • a rear solid layer structure comprising a rear diffusion layer, a first solid sound-absorptive layer and an aluminum layer, the rear diffusion layer being in contact with a first side of the first solid sound-absorptive layer and the aluminum layer being in contact with a second side of the first solid sound-absorptive laver, the second side of the first solid sound-absorptive layer being opposite to the first side of the first solid sound-absorptive layer;

    a front solid layer structure configured to be substantially parallel to the rear solid layer structure, the front solid layer structure comprising a second solid sound-absorptive layer and a front diffusion layer, the second solid sound-absorptive layer being in contact with a first side of the front diffusion layer; and

    an air gap layer located between the rear solid layer structure and the front solid layer structure, the air gap being in contact with the aluminum layer of the rear solid layer structure and the second solid sound-absorptive layer of the front solid layer structure;

    and wherein the composite acoustic panel is configured for attachment to a stand or boom of the microphone.

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