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Device and method for processing audio information

  • US 20020095297A1
  • Filed: 01/17/2002
  • Published: 07/18/2002
  • Est. Priority Date: 01/17/2001
  • Status: Abandoned Application
First Claim
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1. An audio information processing device comprising:

  • a subband dividing section dividing inputted audio information including a sound signal into a plurality of frequency bands;

    a scaling section calculating a scaling factor, which indicates a multiplying power to a reference value, of each subband divided by the subband dividing section into each of the frequency bands, and aligning each dynamic range; and

    a coding processing section compressing and coding an output signal from the scaling section by using a MPEG system to output as coded bit stream data;

    further including a feature detection processing section extracting features of the audio information on the basis of the scaling factors outputted from the scaling section.

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