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APPARATUS FOR PROVIDING AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF A DOWNMIX SIGNAL REPRESENTATION, APPARATUS FOR PROVIDING A BITSTREAM REPRESENTING A MULTICHANNEL AUDIO SIGNAL, METHODS, COMPUTER PROGRAM AND BITSTREAM USING A DISTORTION CONTROL SIGNALING

 
: Engdegard, J.; Purnhagen, H.; Herre, J.; Terentiev, L.; Falch, C.; Hellmuth, O.

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Frontpage ()

US 20090253237 P: 20091020
WO 2010EP65671 A: 20101019
WO 2011048067 A1: 20110428
Englisch
Patent, Elektronische Publikation
Fraunhofer IIS ()

Abstract
An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, and in dependence on a rendering information, comprises 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 in dependence on the distortion limitation control parameter.

: http://publica.fraunhofer.de/dokumente/N-201663.html