METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL

摘要

A method of processing an audio signal, the method including receiving a downmix signal including at least one object signal, and object information extracted when the downmix signal is generated, the at least one object signal including a background object and at least one independent object; receiving mix information including mode selection information, the mix information for controlling the at least 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 downmix processing information by using the object information and the mix information; generating an output signal by applying the downmix processed information to the downmix signal; and extracting the background object and the at least one independent object from the downmix signal, by using the enhanced object information.

主权项

1. A method of processing an audio signal, the method comprising:
receiving a downmix signal including at least one object signal, and object information extracted when the downmix signal is generated, the at least one object signal including a background object and at least one independent object; 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; when the mode selection information indicates a normal mode:
generating downmix processing information by using the object information and the mix information, the downmix processing information for controlling the downmix signal; andgenerating a output signal by applying the downmix processed information to the downmix signal; and when the mode selection information indicates a mode for controlling the background object or a mode for controlling the at least one independent object:
extracting the background object and the at least one independent object from the downmix signal, by using the enhanced object information; andrendering one of the background object and the at least one independent object based on the mix information, wherein the downmix signal and the output signal correspond to a mono signal.