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Method and an Apparatus for Decoding an Audio Signal

  • US 20100014680A1
  • Filed: 10/02/2009
  • Published: 01/21/2010
  • Est. Priority Date: 12/07/2006
  • Status: Active Grant
First Claim
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1. A method for processing an audio signal performed by an audio coding system, comprising:

  • receiving a downmix signal comprising at least one object signal, and object information determined when the downmix signal is generated;

    receiving mix information for controlling the least one object signal; and

    , bypassing the downmix signal if the downmix signal corresponds to a mono signal;

    generating multi-channel information including at least one gain modification factor using the object information and the mix information if the downmix signal corresponds to a mono signal,wherein the gain modification factor corresponds to a time-subband-variant factor for controlling gain of the downmix signal.

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