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System and method for characterizing synthesizing and/or canceling out acoustic signals from inanimate sound sources

  • US 6,542,857 B1
  • Filed: 12/02/1998
  • Issued: 04/01/2003
  • Est. Priority Date: 02/06/1996
  • Status: Expired due to Fees
First Claim
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1. A method for characterizing an inanimate sound source, comprising the steps of:

  • generating a measured primary excitation function from excitations of the inanimate sound source;

    generating a parameterized primary excitation function from the measured excitation function;

    subtracting the parameterized primary excitation function from the measured primary excitation function to create an estimated secondary excitation function;

    selecting a chaotic excitation function from a set of chaotic excitation functions which best fits the estimated secondary excitation function;

    identifying the chaotic excitation function as a parameterized secondary excitation function;

    characterizing acoustic emissions from the inanimate sound source; and

    generating, from the parameterized primary excitation function, from the parameterized secondary excitation function, and from the acoustic emissions, a function which represents the inanimate sound source.

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