AUDIO SIGNAL DECODER, TEMPORARY DEFORMATION LOOP DATA PROVIDER, METHOD AND COMPUTER PROGRAM Russian patent published in 2014 - IPC G10L21/04 G10L19/02 

FIELD: information technology.

SUBSTANCE: audio signal decoder designed to provide a decoded representation of an audio signal based on an encoded representation of the audio signal, which includes information on evolution of a temporary deformation loop, includes a temporary deformation loop computer, a device for changing the scale of the temporary deformation loop data and a deformation decoder. The temporary deformation loop computer is designed to generate temporary deformation loop data through multiple restarting from a predefined starting value of the temporary deformation loop based on information on evolution of the temporary deformation loop, which describes time evolution of the temporary deformation loop. The device for changing the scale of temporary deformation loop data is designed to change the scale of at least part of temporary deformation loop data to avoid, reduce or eliminate non-uniformity during restart in a scaled version of the temporary deformation loop. The deformation decoder is designed to provide a decoded representation of an audio signal based on an encoded representation of the audio signal and by using the scaled version of the temporary deformation loop.

EFFECT: supporting low bit rate with reliable reconstruction of the required temporary deformation information at the decoder side.

14 cl, 40 dwg