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System and method for concealment of data loss in digital audio transmission

  • US 20020133764A1
  • Filed: 01/24/2001
  • Published: 09/19/2002
  • Est. Priority Date: 01/24/2001
  • Status: Active Grant
First Claim
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1. A method for concealing errors detected in an input audio bit stream, the digital audio bit stream configured as a series of packets, said method comprising the steps of:

  • detecting a first beat and a subsequent plurality of beats in the audio bit stream;

    defining a first inter-beat interval extending between said first beat and a (k+1)th subsequent beat;

    storing at least a portion of the audio bit stream occurring within said first inter- beat interval;

    detecting an erroneous audio segment occurring in a second inter-beat interval extending between said (k+1)th beat and a (2k+1)th subsequent beat; and

    replacing at least a first part of said erroneous audio segment with a corresponding part of said stored digital audio bit stream portion.

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