- METHOD AND APPARATUS FOR DECOMPOSING A STEREO RECORDING USING FREQUENCY-DOMAIN PROCESSING EMPLOYING A SPECTRAL WEIGHTS GENERATOR

摘要

There is provided an apparatus for generating a stereo side signal having a first side channel and a second side channel from a stereo input signal having a first input channel and a second input channel. The apparatus includes a change information generator 110 for generating change information based on the intermediate-side information. In addition, the apparatus is further configured to manipulate the second input channel based on the change information to obtain a second side channel, and configured to manipulate the first input channel based on the change information to obtain a first side channel 120). The change information generator 110 includes a spectral weight generator 116 that generates change information by generating a first spectral weighting factor based on a mono side signal and a mono intermediate signal of a stereo input signal.