A Study on Realistic Sound Reproduction for UHDTV

&'()*+,-./01234HDTV5UHDTV 6789:; ?@ABCDEFG. HI>HDTVH5.1JK>LMBLM N O:UHDTV P/:;Q34,R67 STU ŠH ?UHDTV H‹ŒHE2QŽ„St.M/‘’\]*8H/m HgSE“”1‰5Eg•E–G. AbstractOwing to the latest development of component and media processing technologies, UHDTV as a successor of the HDTV is expected that this will be coming soon realization. Accordingly, an audio technology that provides a 5.1-channel surround sound in home should be contemplating on what services should be provided with the advent of UHDTV era. In fact, however, the market of 5.1-channel audio is struggling, due to the difficulty of installation and maintenance of the multi speakers in a home. Meanwhile, the movie sound market for a long time been used in 5.1 and 7.1-channel sound formats, have changed as Dolby ATMOS, IOSONO, AURO3D etc. are launched one after another with the introduction of hybrid audio technologies that include the ceiling and object-based sounds. This very object-based audio technology is assured to be introduced in the home theater and broadcast audio market, and this change in audio technology is expected to be a breath of pioneering technological advances and market growth from the channel-based audio market that lacks flexibility. In this paper, we will investigate a suitable realistic audio solution for UHDTV, and introduce hybrid audio technologies, which is expected to be an audio technology for UHDTV, and we will describe the hybrid audio content format and reproduction methods in a home and consider the future prospects of realistic audio.Keyword : UHD Audio, Realistic Audio, Object-based Audio, UHDTV, Audio Rendering—˜(Special Paper) 20 1 , 2015 1(JBE Vol. 20, No. 1, January 2015)http://dx.doi.org/10.5909/JBE.2015.20.1.68ISSN 2287-9137 (Online) ISSN 1226-7953 (Print)