APPARATUS AND METHOD FOR DECODING OR ENCODING AN AUDIO SIGNAL USING ENERGY INFORMATION VALUES FOR A RECONSTRUCTION BAND Russian patent published in 2018 - IPC G10L19/02 G10L21/38 G10L19/08 G10L19/18 

FIELD: physics.

SUBSTANCE: invention relates to means for encoding and decoding an audio signal. An apparatus for decoding an encoded audio signal comprising an encoded representation of a first set of first spectral portions and an encoded representation of parametric data indicating spectral energies for a second set of second spectral portions, comprises audio decoder (900) for decoding encoded representation (901b) of the first set of the first spectral portions to obtain first set of first spectral portions (904), and for decoding the encoded representation of the parametric data to obtain decoded parametric data (902) for the second set of the second spectral portions, indicating, for individual reconstruction bands, individual energies; frequency regenerator (906) for reconstructing the spectral values in reconstruction frequency band (920), comprising a second spectral portion (922, 923), using a first spectral portion of the first set of the first spectral portions and an individual energy for the reconstruction band.

EFFECT: technical result is to improve the efficiency of audio coding.

25 cl, 41 dwg