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Masking of pure tones within sound from a noise generating source

  • US 8,223,985 B2
  • Filed: 04/22/2009
  • Issued: 07/17/2012
  • Est. Priority Date: 04/22/2009
  • Status: Active Grant
First Claim
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1. A method for masking pure tones within sound generated from a noise generating source, the method comprising:

  • detecting one or more pure tones within sound being generated from the noise generating source; and

    generating a masking spectrum that includes sound levels at frequencies in bands that are adjacent to each of the one or more pure tones within the sound wherein the sound levels are at frequencies selected based on respective locations of each of the one or more pure tones.

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