Patent ID: 6341165
Filing Date: 2002-01-22
Classification: G10L,H04B,H04S

Abstract:
A method of coding stereo audio spectral values, to obtain coded stereo audio spectral values, comprising the following steps:grouping the stereo audio spectral values in scale factor bands, with which scale factors are associated; intensity stereo coding the stereo audio spectral values in at least one of the scale factor bands, whereby one channel has intensity stereo coded stereo audio spectral values and another channel has stereo audio spectral values with a value of substantially zero; if the stereo audio spectral values in a scale factor band are intensity stereo coded, intensity stereo decoding the intensity stereo coded stereo audio spectral values of one channel in the scale factor band, to obtain intensity stereo decoded stereo audio spectral values for the other channel; making a first prediction with the intensity stereo decoded stereo audio spectral values of the other channel in the scale factor band, the results of the first prediction not being taken into account when the stereo audio spectral values of the other channel are coded; if the stereo audio spectral values in a scale factor band are not intensity stereo coded, making the first prediction with the stereo audio spectral values of the other channel in the scale factor band, to obtain the coded stereo audio spectral values of the other channel.