FIELD: information technology.
SUBSTANCE: invention relates to comfortable noise generating devices. Buffer of a predetermined size is configured to store CN parameters for SID frames (Silence Insertion Descriptor) and active tightening frames. Subset selection device is configured to determine a subset of CN parameters relevant for SID frames based on the age of the stored CN-parameters and based on the residual energies. Comfort noise control parameter extraction unit is configured to use a specific subset of the CN parameters to determine CN control parameters for the first SID frame following the active frame of the signal.
EFFECT: technical result consists in increase in perceptible sound quality.
12 cl, 12 dwg
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