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Extracting classifying data in music from an audio bitstream

  • US 20030040904A1
  • Filed: 08/27/2001
  • Published: 02/27/2003
  • Est. Priority Date: 08/27/2001
  • Status: Active Grant
First Claim
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1. A method of extracting classifying data from an audio signal, the method comprising the steps of:

  • (a) processing said audio signal into a perceptual representation of its constituent frequencies;

    (b) processing said perceptual representation into at least one learning representation of said audio data stream;

    (c) inputting at least one said learning representation into a multi-stage classifier, whereby said multi-stage classifier extracts classifying data from said learning representations and outputs the classification of said audio signal.

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