CODING AND DECODING METHODS AND DEVICES BASED ON OBJECTS OF ORIENTED AUDIO SIGNALS Russian patent published in 2010 - IPC G10L19/00 

FIELD: information technology.

SUBSTANCE: audio decoding method involves receiving a step-down mixing signal based on additional information objects and control information, where the step-down mixing signal contains at least two step-down mixing channel signals and is generated through step-down mixing of multiple object signals, and control information controls the position or level or the object signal contained in the step-down mixing signal; extraction of the ratio of distribution of the object signals between channels from the object-based additional information; generation of pre-processing information for modifying step-down mixing channel signals based on information on the ratio of distribution between channels and control information; generation of a mutichannel audio signal based on the object-based additional information and control information and modified step-down mixing channel signals.

EFFECT: efficient processing of object-based audio signals.

11 cl, 33 dwg