APPARATUS FOR PROVIDING UPMIX SIGNAL REPRESENTATION BASED ON DOWNMIX SIGNAL REPRESENTATION, APPARATUS FOR PROVIDING BITSTREAM REPRESENTING MULTICHANNEL AUDIO SIGNAL, METHODS, COMPUTER PROGRAMME AND BITSTREAM USING DISTORTION CONTROL SIGNALLING Russian patent published in 2016 - IPC G10L19/00 

FIELD: physics, acoustics.

SUBSTANCE: invention relates to providing an upmix signal representation based on a downmix signal representation and object-related parametric information, which are included in a bitstream representation of audio content, and rendering information. The technical result is achieved through an apparatus for providing an upmix signal representation based on a downmix signal representation and object-related parametric information, which are included in a bitstream representation of audio content which, depending on rendering information, includes a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit audible distortions which are caused by an inappropriate choice of rendering parameters. The distortion limiter is configured to obtain a distortion limitation control parameter, which is included in the bitstream representation of the audio content, and to adjust a distortion control scheme depending on the distortion limitation control parameter.

EFFECT: improving intelligibility of the speech of a speaker through multichannel audio playback.

18 cl, 11 dwg