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AUDIO ENCODING DEVICE AND AUDIO ENCODING METHOD

  • US 20090083041A1
  • Filed: 04/27/2006
  • Published: 03/26/2009
  • Est. Priority Date: 04/28/2005
  • Status: Active Grant
First Claim
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1. A speech coding apparatus for encoding a stereo signal comprising a first channel signal and a second channel signal, the apparatus comprising:

  • a monaural signal generating section that generates a monaural signal using the first channel signal and the second channel signal;

    a selecting section that selects one of the first channel signal and the second channel signal; and

    a coding section that encodes the generated monaural signal to obtain core layer encoded data, and encodes the selected channel signal to obtain enhancement layer encoded data corresponding to the core layer encoded data.

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