APPARATUS AND METHOD REALISING FADING OF MDCT SPECTRUM TO WHITE NOISE PRIOR TO FDNS APPLICATION Russian patent published in 2018 - IPC G10L19/05 G10L19/12 G10L19/22 

FIELD: data processing.

SUBSTANCE: invention relates to means for encoding and decoding an encoded audio signal. One or more frames containing information about a plurality of samples of an audio signal of an audio signal spectrum of the encoded audio signal are received. Reconstructed audio signal is generated. Generation of the reconstructed audio signal is conducted by fading a modified spectrum to a target spectrum, if a current frame is not received or if the current frame is received but is corrupted. Modified spectrum comprises a plurality of modified signal samples. For each of the modified signal samples of the modified spectrum, an absolute value of said modified signal sample is equal to an absolute value of one of the audio signal samples of the audio signal spectrum.

EFFECT: higher efficiency of coding an audio signal.

20 cl, 2 tbl, 17 dwg