Patent ID: 9460724
Filing Date: 2016-10-04
CPC Classification: G10L,H04S

Claim Text:
1. An audio signal decoder for providing an upmix signal representation based on a downmix signal representation and an object-related parametric information, and depending on a rendering information, the audio signal decoder comprising: an object parameter determinator configured to acquire inter-object-correlation values for a plurality of pairs of audio objects, wherein the object parameter determinator is configured to evaluate a bitstream signaling parameter in order to decide whether to evaluate individual inter-object-correlation bitstream parameter values, to acquire inter-object-correlation values for a plurality of pairs of related audio objects, or to acquire inter-object-correlation values for the plurality of pairs of related audio objects using a common inter-object-correlation bitstream parameter value; and a signal processor configured to acquire the upmix signal representation based on the downmix signal representation and using the inter-object-correlation values for the plurality of pairs of related audio objects and the rendering information; wherein the object-related parametric information comprises the bitstream signaling parameter and the individual inter-object-correlation bitstream parameter values or the common inter-object-correlation bitstream parameter value; wherein the object parameter determinator is configured to evaluate an object-relationship-information, describing whether two audio objects are related to each other; and wherein the object parameter determinator is configured to selectively acquire inter-object-correlation values for pairs of audio objects, for which the object-relationship-information indicates a relationship, using the common inter-object-correlation bitstream parameter value and to set inter-object-correlation values for pairs of audio objects, for which the object-relationship information indicates no relationship, to a predefined value.