AUDIO/VOICE CODING DEVICE, AUDIO/VOICE DECODING DEVICE, AUDIO/VOICE CODING METHOD AND AUDIO/VOICE DECODING METHOD Russian patent published in 2018 - IPC G10L19/35 H03M7/30 

FIELD: physics.

SUBSTANCE: coding and decoding devices contain an identification block of the dominant frequency ranges, which identifies the range of the dominant frequency with the value of the coefficient of the norm, i.e. the maximum value within the range of the input audio/voice, and blocks of defining dominant groups and blocks of defining redominant groups, which group all the sub-ranges in the dominant group, which contains the range of the dominant frequency, and the redominant group that contains the range of the redominant frequency, a block of distributing bits to the groups which distributes the bits of each group on the basis of the energy and the rule dispersion of each group, and a block of distributing bits to the sub-ranges, which redistributes the bits that were allocated to each group, each sub-range in accordance with the rules for the group energy .

EFFECT: increasing the efficiency of coding and decoding audio and improving the sound quality.

8 cl, 11 dwg