Patent ID: 8254600
Filing Date: 2012-08-28
Classification: G10L,H04S

Abstract:
1. A method for processing an audio signal, comprising: receiving a downmix signal comprising plural objects, and a bitstream including object information and downmix gain information; obtaining level guide flag information indicating whether level guide information is present in the bitstream; obtaining the level guide information representing a limitation of object level applied to at least one object of the plural objects, from the bitstream, based on the level guide flag information; receiving mix information; generating modified mix information by modifying the mix information based on the level guide information and the downmix gain information; and generating at least one of downmix processing information and multi-channel information based on the modified mix information and the object information, wherein the mix information is used for controlling object level for at least one object of the plural objects, and wherein the object information and the downmix gain information are determined when the downmix signal is generated.