FIELD: data processing.
SUBSTANCE: invention relates to audio data processing. Technical result is achieved by forming a first group of two or more processed channels based on a first selected pair of two decoded channels to obtain an updated set of three or more decoded channels; wherein before the first group of two or more processed signals is generated based on the first selected pair of two decoded channels, the following steps are performed, at which: identifying, with respect to at least one of two channels from a first selected pair of two decoded channels, one or more frequency bands within which all spectral lines are quantized to zero, and forming a mixing channel using two or more, but not all, of three or more previous audio output channels and spectral lines of one or more frequency bands are filled, within which all spectral lines are quantized to zero, noise generated using spectral lines of the mixing channel.
EFFECT: high accuracy of processing audio data.
18 cl, 17 dwg
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