APPARATUS AND METHOD FOR MULTI-CHENNEL PARAMETER TRANSFORMATION

摘要

5 6 APPARATUS AND METHOD FOR MULTI-CHANNEL PARAMETER TRANSFORMATION 5 ABSTRACT A R)ARAMETER TRANSFORMER GENERATES LEVEL NARAMETERS, INDICATING AN ENERGY RELATION BETWEEN A FIRST AND A SECOND AUDIO CHANNEL OF A MULTI-CHANNEL AUDIO SIGNAL ASSOCIATED TO 10 A MULTI-CHANNEL LOUDSIDEAKER CONFIAURATION. THE LEVEL PARAMETER ARE GENERATED BASED ON OBJECT PARAMETERS FOR A PLURALITY OF AUDIO OBJECTS ASSOCIATED T O A DOWN-MIX CHANNEL, WHICH IS AENERATED USINQ OBJECT AUDIO SIGNALS ASSOCIATED TO THE AUDIO OBJECTS. THE OBJEC7@ PARAMETERS 15 COMPRISE AN ENERGY PARAMETER @NDICATING AN ENERGY OF THE OBJECT AUDIO SIGNAL. TO DERIVE THE COHERENCE AND THE LEVEL PARAMETERS, A PARAMETER AENERATOR IS USED, WHICH COMBINES THE ENERGY PARAMETER AND OBJECT RENDERING PARAMETERS, WHICH DEPEND ON A DESIRED RENDERING CONFIGURATION. 20