FIELD: data processing.
SUBSTANCE: invention relates to means of audio signal processing. Time sequence of blocks of audio signal values is generated (110). Determining (120) the block characteristic of the current audio signal block and determining the average characteristic for the group of blocks, wherein the group of blocks comprises at least two blocks. Current block is divided (130) into a background portion and a foreground portion in response to the ratio of the block characteristic of the current block and the average block group characteristic. Background component signal (140) comprises the background portion of the current block and the foreground component signal (150) comprises a portion of the foreground of the current block.
EFFECT: technical result is higher efficiency of processing an audio signal.
23 cl, 15 dwg
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