Kim, Dong Soo

Lee, Hyunkook

Lim, Jae Hyn

Pang, Hee Suk

Yoon, Sung Yong

An audio decoding method and apparatus and an audio encoding method and apparatus which can efficiently process object-based audio signals are provided. The audio decoding method includes receiving a downmix signal and object-based side information, the downmix signal comprising at least two downmix channel signals; extracting gain information from the object-based side information and generating modification information for modifying the downmix channel signals on a channel-by-channel basis based on the gain information; and modifying the downmix channel signals by applying the modification information to the downmix channel signals

Methods and apparatuses for encoding and decoding object-based audio signals

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