A METHOD AND AN APPARATUS FOR PROCESSING A SIGNAL

摘要

A method of decoding an audio signal comprises receiving (a) a downmix signal being generated by downmixing a plurality of modified object signals, the modified object signals being generated by applying downmix gain information to object signal, (b) object information including the downmix gain information applied to the object signal and modified object level information indicating energy level of the modified object signal, and (c) rendering information; obtaining the modified object level information from a frame of the object information and downmix gain information from extension region of the object information; generating downmix processing information by using the modified object level information and the rendering information, the downmix processing information in order to allow object panning and object level control of the downmix signal; generating output signal by modifying the downmix signal with the downmix processing information; and generating object level information by applying the downmix gain information to the modified object level information, in order to obtain the object signal.