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BEAT TRACKING APPARATUS, BEAT TRACKING METHOD, RECORDING MEDIUM, BEAT TRACKING PROGRAM, AND ROBOT

  • US 20100017034A1
  • Filed: 07/15/2009
  • Published: 01/21/2010
  • Est. Priority Date: 07/16/2008
  • Status: Active Grant
First Claim
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1. A beat tracking apparatus comprising:

  • a filtering unit configured to perform a filtering process on an input acoustic signal and to accentuate an onset;

    a beat interval reliability calculating unit configured to perform a time-frequency pattern matching process employing a mutual correlation function on the acoustic signal of which the onset is accentuated and to calculate a beat interval reliability; and

    a beat interval estimating unit configured to estimate a beat interval on the basis of the calculated beat interval reliability.

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