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Method and device for analyzing a wave signal and method and apparatus for pitch detection

  • US 7,251,596 B2
  • Filed: 12/23/2002
  • Issued: 07/31/2007
  • Est. Priority Date: 12/31/2001
  • Status: Expired due to Fees
First Claim
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1. A method for analyzing a wave signal, comprising:

  • an inputting step of inputting a wave signal representing a sound signal;

    an acme detecting step for detecting a set of acmes of a waveform of the wave signal representing the sound signal; and

    a trigon extracting step for extracting a set of trigons in accordance with the set of acmes detected by the acme detecting step.

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