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Enhanced error concealment for spatial audio

  • US 20040039464A1
  • Filed: 06/13/2003
  • Published: 02/26/2004
  • Est. Priority Date: 06/14/2002
  • Status: Abandoned Application
First Claim
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1. An error concealment method for multi-channel digital audio, the method comprising the steps of receiving an audio signal having audio data forming a first audio channel and a second audio channel included therein, said first and second audio channels being correlated with each other in a manner so that a spatial sensation is typically perceived when listened to by a user;

  • detecting erroneous first-channel data in the first audio channel;

    obtaining second-channel data from the second audio channel;

    determining, upon detection of the erroneous first-channel data, a spatially perceivable inter-channel relation between the first and second audio channels; and

    correcting the erroneous first-channel data of the first audio channel by using the second-channel data and the determined inter-channel relation so as to preserve the spatial sensation perceived by the user.

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