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Frame error concealment method and apparatus, and audio decoding method and apparatus

  • US 9,842,595 B2
  • Filed: 12/12/2016
  • Issued: 12/12/2017
  • Est. Priority Date: 09/24/2012
  • Status: Active Grant
First Claim
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1. A time domain frame error concealment apparatus comprising:

  • at least one processor configured to;

    when a frame is classified as an error frame or a next good frame after the error frame, select one tool from among a plurality of tools including a first tool using phase matching and a second tool using repetition and smoothing, based on a plurality of parameters including stationarity of the frame; and

    perform a corresponding time domain error concealment processing on the frame, based on the selected tool,wherein the frame is obtained from transform from a frequency domain to a time domain,wherein the first tool includes a first mode related to a single error frame, a second mode related to a burst error frame, and a third mode related to the next good frame after the error frame, andwherein the second tool includes a first mode related to the error frame, a second mode related to the next good frame after a single error frame, and a third mode related to the next good frame after a burst error frame.

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