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Method and device for decoding signal

  • US 9,830,914 B2
  • Filed: 03/07/2017
  • Issued: 11/28/2017
  • Est. Priority Date: 12/06/2012
  • Status: Active Grant
First Claim
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1. A method for decoding an audio signal, comprising:

  • decoding a received bitstream to obtain at least a portion of spectral coefficients of a current frame of the audio signal;

    classifying a sub-band of the current frame as a bit allocation un-saturated sub-band, wherein at least one spectral coefficient of the bit allocation un-saturated sub-band has been obtained by decoding the received bitstream and at least one spectral coefficient of the bit allocation un-saturated sub-band has not been obtained by decoding the received bitstream;

    reconstructing the at least one spectral coefficient of the bit allocation un-saturated sub-band that has not been obtained by decoding the bitstream by performing noise filling; and

    obtaining a frequency domain signal according to the obtained at least the portion of spectral coefficients of the current frame of the audio signal and the reconstructed at least one spectral coefficient of the bit allocation un-saturated sub-band.

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