AUDIO SIGNAL DECODER, METHOD OF DECODING AUDIO SIGNAL AND COMPUTER PROGRAM USING CASCADED AUDIO OBJECT PROCESSING STAGES Russian patent published in 2015 - IPC G10L19/00 H03M7/30 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to an audio signal decoder which generates at the output an upmix signal representation based on a downmix signal representation and object-oriented parametric information. The audio signal decoder comprises an object separator configured to decompose the downmix signal representation into first audio information describing a first set of one or more audio objects of a first type and second audio information describing a second set of one or more audio objects of a second type, depending on the downmix signal representation and using at least part of the object-oriented parametric information, an audio signal processor configured to receive the second audio information and to process the second audio information based on the object-oriented parametric information, to obtain a processed version of the second audio information, an audio signal combiner configured to combine the first audio information with the processed version of the second audio information, to obtain the upmix signal representation at the output.

EFFECT: high accuracy of reproducing back audio signals.

39 cl, 22 dwg