Patent ID: 8463413

Claim:
A method of processing an audio signal with an object decoder, the method comprising: receiving a downmix signal including at least one object, and a bitstream including object information and meta information; obtaining correlation information indicating whether an object is grouped with other objects from the object information of the bitstream; receiving mix information; obtaining the meta information associated with the at least one object based on the correlation information, the meta information being a description for indicating attribute information of the at least one object; and generating at least one of downmix processing information and multi-channel information based on the object information and the mix information, wherein the object information includes at least one of object level information, object correlation information, and object gain information, and wherein the meta information includes object name information, an index indicating an object, detailed attribute information for an object characteristic, information on the number of objects, description information on the meta information for the objects, information on the number of characters of the meta information indicating the number of characters used for description information on the meta information of a single object, and character information indicating each character of meta information of a single object.