NOISE FILLING WITHOUT SIDE INFORMATION FOR CELP-LIKE CODERS Russian patent published in 2018 - IPC G10L19/28 G10L19/12 G10L19/87 

FIELD: physics.

SUBSTANCE: invention relates to means for encoding audio. Audio decoder for providing decoded audio information on the basis of encoded audio information comprising linear prediction coefficients, comprises a tilt adjuster configured to adjust a tilt of background noise using tilt information; a decoder core configured to decode the audio information of the current frame using the linear prediction coefficients of the current frame to obtain the decoded main output of the encoder; and a noise inserter configured to add the adjusted background noise to the current frame in order to perform noise filling, wherein the tilt adjuster is configured to obtain tilt information by calculating the increment g of the linear prediction coefficients of the current frame.

EFFECT: technical result is improved quality of audio coding.

17 cl, 11 dwg