SIGNAL ENCODING DEVICE AND METHOD Russian patent published in 2018 - IPC G10L19/12 G10L19/12 

FIELD: data processing.

SUBSTANCE: invention relates to signal processing. Technical result is achieved by determination of the first parameter of each silence frame in T silence frames, wherein the first parameter is used to represent the spectral entropy and T is a positive integer, and determining the first spectral parameter according to the spectral parameter of the first group of silence frames, wherein the first spectral parameter is used to generate a comfort noise, T silence frames are classified into a first group of silence frames and a second group of silence frames, and the spectral entropy represented by the first parameters of the first group of silence frames is larger than the spectral entropy represented by the first parameters of the second group of silence frames.

EFFECT: technical result is to improve the quality of the generated comfort noise of the silence frames.

9 cl, 15 dwg