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.
|Patent number||US8756066 B2|
|Publication status||Published - 17 Jun 2014|
Kim, D. S., Pang, H. S., Lim, J. H., Yoon, S. Y., & Lee, H. (2014). Methods and apparatuses for encoding and decoding object-based audio signals. (Patent No. US8756066 B2). http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8756066.PN.&OS=PN/8756066&RS=PN/8756066