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Method and an apparatus for processing an audio signal

  • US 8,892,427 B2
  • Filed: 07/27/2010
  • Issued: 11/18/2014
  • Est. Priority Date: 07/27/2009
  • Status: Active Grant
First Claim
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1. A method for processing an audio signal, comprising:

  • receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme, wherein the rectangular coding scheme is to encode or decode with rectangular window and the non-rectangular coding scheme is to encode or decode with non-rectangular window;

    generating an output signal for the first block using the first data of the first block based on the rectangular coding scheme;

    receiving a compensation signal corresponding to the second block;

    obtaining a prediction of an aliasing part by applying the non-rectangular window to the output signal for the first block; and

    ,obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.

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