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Method and apparatus for reconstructing voice information

  • US 7,013,267 B1
  • Filed: 07/30/2001
  • Issued: 03/14/2006
  • Est. Priority Date: 07/30/2001
  • Status: Active Grant
First Claim
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1. A method for reconstructing voice information communicated from a source to a destination, comprising the following steps performed at the destination:

  • receiving a plurality of first voice samples communicated from a source;

    receiving a voice parameter communicated from the source, the voice parameter characterizing the first voice samples, wherein the voice parameter comprises a pitch period;

    determining a loss of a packet communicated from the source; and

    generating a plurality of second voice samples using the first voice samples and the voice parameter, wherein generating the plurality of second voice samples comprises;

    determining a silence interval represented by the packet loss;

    determining a start point in a buffer storing the first voice samples that is one or more integer pitch periods before the beginning of the silence interval; and

    copying first voice samples from the buffer beginning at the start point to generate the second voice samples associated with the silence interval.

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