DEVICE AND METHOD FOR ENCODED SIGNAL PROCESSING AND ENCODER AND METHOD FOR ENCODED SIGNAL GENERATING Russian patent published in 2017 - IPC G10L19/26 G10L19/09 H03M7/30 

FIELD: information technology.

SUBSTANCE: encoded signal comprises an encoded audio signal with information regarding to pitch delay or pitch gain, and a postfilter management parameter for low audio frequencies, comprising: an audio signal decoder for encoded audio signal decoding using information concerning pitch delay or pitch gain to obtain a decoded audio signal; a controlled post-filter of low sound frequencies to filter the decoded audio signal to obtain a processed signal, wherein a controlled post-filter of low sound frequencies has a variable characteristic of post-filter of low sound frequencies controlled by a management parameter of a post-filter of low sound frequencies; and a controller for setting of a variable characteristic of post-filter of low sound frequencies according to a management parameter of a post-filter of low sound frequencies, that is included to an encoded signal.

EFFECT: improved quality of encoded audio signal.

18 cl, 13 dwg