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Signal conditioning apparatus

  • US 5,839,099 A
  • Filed: 06/11/1996
  • Issued: 11/17/1998
  • Est. Priority Date: 06/11/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for producing a spectrally normalized human voice signal from a human voice input, said spectrally normalized human voice signal being sent to a voice recognition system, said apparatus comprising:

  • a pitch altering circuit receiving said human voice input and producing an intermediate analog output;

    a frequency bandwidth limiting circuit receiving said intermediate analog output and producing said spectrally normalized human voice signal; and

    a means for receiving a control signal from the voice recognition system to control a characteristic of said normalized human voice signal.

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