FIELD: acoustics.
SUBSTANCE: invention relates to the classification of a multi-channel or stereo audio signal for an audio encoder and, in particular, to a multi-channel or stereo audio encoder intended for use in a portable device. Method includes: estimating a value of entropy for a multi-channel audio signal; determining a channel configuration of the multi-channel audio signal based on the value of entropy; and encoding the multi-channel audio signal, wherein the encoding mode depends on the channel configuration.
EFFECT: technical result is to provide an optimal encoding mode for the input audio signal.
21 cl, 6 dwg
