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Signal processing apparatus and method, recording medium, and program

  • US 20030091323A1
  • Filed: 07/12/2002
  • Published: 05/15/2003
  • Est. Priority Date: 07/17/2001
  • Status: Active Grant
First Claim
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1. A signal processing apparatus comprising:

  • amplitude extraction means for extracting the amplitude of an input audio signal, the audio signal having a plurality of contents in a time-division manner; and

    change-point detection means for detecting a change point of content in the input audio signal based on the temporal change of the amplitude extracted by said amplitude extraction means.

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