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Coding method, decoding method, coder, and decoder

  • US 10,153,780 B2
  • Filed: 01/25/2018
  • Issued: 12/11/2018
  • Est. Priority Date: 04/29/2007
  • Status: Active Grant
First Claim
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1. A method for coding an audio signal sample, comprising:

  • obtaining, by a coder, a pulse distribution of pulses to be encoded on a track of the audio signal sample, wherein the pulse distribution comprises a quantity of pulse positions N, a vector P(N)={p(0), p(1), . . . , p(N−

    1)} indicating a distribution of the pulse positions on the track, and a quantity of the pulses in each of the pulse positions;

    determining, by the coder, a first index according to the quantity of the pulse positions N;

    determining, by the coder, a second index by using the following permutation formula;

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