FIELD: audio processing means.
SUBSTANCE: generating a time sequence of blocks of audio signal values. Characteristic of the current audio signal block is determined, and the variability of the characteristic in the group of blocks containing at least two blocks from said sequence of blocks is determined. Current block is divided into a background part and a foreground part. Threshold value of separation is determined based on said variability. Current unit is divided into background component signal and foreground component signal, when the characteristic of the current unit is in a predetermined relationship with the threshold value of separation. Or, the full current block is determined as the foreground component signal, when the characteristic of the current unit is in a predetermined relationship with the threshold value of separation. Or, determining that the full current block is determined as the background component signal, when the characteristic of the current unit is not in a predetermined relationship with the threshold value of separation.
EFFECT: technical result is higher efficiency of audio processing.
21 cl, 15 dwg
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