Patent ID: 8712060
Filing Date: 2014-04-29
Classification: G10L

Abstract:
1. A method for processing an audio signal, comprising: receiving, by a decoding apparatus, a downmix signal having at least two independent objects and a background object downmixed therein, the at least two independent objects including at least a first independent object and a second independent object; receiving, by the decoding apparatus, a side information bitstream comprising object parameters and at least two pieces of enhanced object information, the at least two pieces of enhanced object information including at least a first residual and a second residual; separating, by the decoding apparatus, the downmix signal into the first independent object and a first temporary background object using the first residual; separating, by the decoding apparatus, the first temporary background object into the second independent object and a second temporary background object using the second residual; generating downmix processing information to process the downmix signal using the object parameters; and generating, by the decoding apparatus, a multi-channel audio signal based on at least one of the first independent object, the second independent object, the second temporary background object, and the downmix processing information, wherein a number of the at least two pieces of enhanced object information and a number of the at least two independent objects are equal to one another.