Efficient coding of digital media spectral data using wide-sense perceptual similarity

Traditional audio coder a keeps the code bit rate to the whole spectrum the lower-mobility coefficients is code, the capable of the fuzzy low-pass sound in of. Generalized is used for similar audio coder is a code expression is scheduled code the spectra of the zooming plate left of the spectral coefficient the sensor similar plate to improve the quality. Left of spectrum coefficient is divided into particular children wave bands. The sub-wave band is gain of the parameter: A formed on the wave band the energy can parameter; And is formed with a wave band of a parameter. The parameter or the direction of the gain spectra part of the movement vectors and fixing code with the spectra of direction, or a stochastic noise vector form. The invention code represents effectively when spectrum similar extended part of the decoding of coated with scaling plate.