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Sound masking system

  • US 20030091199A1
  • Filed: 10/24/2002
  • Published: 05/15/2003
  • Est. Priority Date: 10/24/2001
  • Status: Active Grant
First Claim
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1. A direct field sound making system for providing a direct path sound masking signal to a predetermined area of a building, said predetermined area including a ceiling and a floor, said system comprising:

  • a sound masking signal generator operative to provide two or more mutually incoherent electrical sound masking signals; and

    a plurality of loudspeaker assemblies, each loudspeaker assembly comprising an input coupled to said masking signal generator to receive the electrical sound masking signal from one channel of said generator, wherein each of the plurality of loudspeaker assemblies is operative to emit an acoustic sound masking signal corresponding to said electrical sound masking signal, wherein each of the loudspeaker assemblies has a low directivity index, and wherein each of the plurality of loudspeaker assemblies is constructed and oriented to provide the acoustic sound masking signal in a direct path into said predetermined area.

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