Patent ID: 8654994
Filing Date: 2014-02-18
Classification: G10L,G11B,H04S

Abstract:
1. A method of processing an audio signal, comprising: receiving a downmix signal including at least one object signal, and object information extracted when the downmix signal is generated; receiving mix information including mode selection information, the mix information for controlling the at least one object signal; receiving enhanced object information corresponding to a residual signal generated when the at least one object signal is downmixed to the downmix signal; generating a stereo output signal based on the mode selection information, comprising: extracting a background object and at least one independent object from the downmix signal by using the enhanced object information, based on the mode selection information; and when the background object and the at least one independent object are extracted, rendering one of the background object and the at least one independent object based on the mix information, wherein the downmix signal corresponds to a mono signal, and wherein the mode selection information includes information indicating one of modes including a normal mode, a mode for controlling the background object, and a mode for controlling the at least one independent object.