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Multi-channel audio encoding and decoding

  • US 20040049379A1
  • Filed: 08/15/2003
  • Published: 03/11/2004
  • Est. Priority Date: 09/04/2002
  • Status: Active Grant
First Claim
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1. In an audio encoder, a computer-implemented method of encoding comprising:

  • receiving multi-channel audio data; and

    performing a pre-processing multi-channel transform on the audio data, wherein the encoder varies the transform during the encoding so as to control quality.

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