Time warped modified transform coding of audio signals

Time warped modified transform coding of audio signals

  • CN 102,592,602 A
  • Filed: 10/24/2006
  • Published: 07/18/2012
  • Est. Priority Date: 11/03/2005
  • Status: Active Grant
First Claim
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1. the scrambler of the expression of the sound signal that is used to derive, said sound signal has first frame, follows second frame after said first frame and follows the 3rd frame after said second frame, and said scrambler comprises:

  • Flexible estimator is used to estimate the flexible information of first combination of said first frame and said second frame and the flexible information of second combination that is used to estimate said second frame and said the 3rd frame, the Pitch Information of the flexible said sound signal of information description of said combination;

    Frequency spectrum analyser, use the flexible information of said first combination derive said first frame and said second frame first spectral coefficient and use derive second spectral coefficient of said second frame and said the 3rd frame of the flexible information of said second combination;

    AndOutput interface, the expression that is used to export the said sound signal that comprises said first spectral coefficient and said second spectral coefficient.

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