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AUDIO ENCODING DEVICE AND AUDIO DECODING DEVICE

  • US 20130173275A1
  • Filed: 09/14/2011
  • Published: 07/04/2013
  • Est. Priority Date: 10/18/2010
  • Status: Abandoned Application
First Claim
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1. An audio coding apparatus comprising:

  • a first coding section that codes an input signal and generates first coded data;

    a first local decoding section that decodes the first coded data, and generates a first decoded signal;

    a subtractor section that subtracts the first decoded signal from the input signal, and generates an error signal;

    a second coding section that codes only a portion of spectral coefficients of the error signal, and generates second coded data;

    a spectral envelope shaping parameter calculation section that calculates a spectral envelope shaping parameter; and

    a quantization section that quantizes the spectral envelope shaping parameter, and generates third coded data.

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