Patent ID: 8645127

Claim:
An audio encoding method, comprising: with a computer, transforming an input audio signal block into a set of spectral coefficients, dividing the spectral coefficients into plural bands, coding values of the spectral coefficients of at least one of the bands in an output bitstream, searching the at least one of the bands coded as spectral coefficient values for a portion similar to at least one other band of the plural bands, and coding the at least one other band in the output bitstream as a scaled version of a shape of the portion of the at least one of the bands coded as spectral coefficient values, wherein the coding the at least one other band comprises coding the at least one other band using a scale parameter and a shape parameter, the shape parameter comprising a motion vector based on results of the searching that indicates the portion of the at least one of the bands coded as spectral coefficient values, and wherein the scale parameter is a scaling factor to scale the portion.