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Method and Apparatus for Processing Audio Frames to Transition Between Different Codecs

  • US 20130173259A1
  • Filed: 01/03/2012
  • Published: 07/04/2013
  • Est. Priority Date: 01/03/2012
  • Status: Active Grant
First Claim
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1. A method for processing audio frames comprising:

  • producing, using a first coding method, a first frame of coded output audio samples by coding a first audio frame in a sequence of frames wherein the coded output audio samples are sampled at a first sampling rate;

    forming an overlap-add portion of the first frame using the first coding method;

    generating a combination first frame of coded audio samples based on combining the first frame of coded output audio samples with the overlap-add portion of the first frame;

    initializing a state of a second coding method based on the combination first frame of coded audio samples; and

    constructing an output signal based on the initialized state of the second coding method.

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