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Vector joint encoding/decoding method and vector joint encoder/decoder

  • US 9,881,626 B2
  • Filed: 04/13/2017
  • Issued: 01/30/2018
  • Est. Priority Date: 01/26/2011
  • Status: Active Grant
First Claim
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1. A method for vector joint encoding for a voice signal, comprising:

  • calculating, by a processor of a computer, an encoding index Indt of each vector from a plurality of vectors, wherein the each vector is obtained by dividing the voice signal, wherein a subscript t denotes a tth vector and t∈

    [0, T−

    1], and wherein T represents number of vectors and is an integer greater than or equal to 2;

    splitting at least one Indt at least once into at least two sections, wherein the splitting at least once is equivalent to splitting the Indt into two split indexes Indt0 and Indt1 according to a set factor SLFt, wherein the set factor SLFt is a set split factor SLF for the tth vector that varies according to the tth vector, wherein the SLFt is a positive integer, wherein the Indt0 denotes a serial number of an interval to which the Indt belongs, wherein the Indt0 denotes a serial number of the Indt in the interval to which the Indt belongs, wherein a length of the interval is not greater than the SLFt, and wherein Indt

    Indt0×

    SLFt+Indt1;

    obtaining a combined index Indsu based on a split index of at least one vector and a split indexe of other vector for a further splitting if any of the Indt0 and Indt1 is uncombined; and

    encoding if all of the Indt0 and Indt1 is combined.

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