![]() ![]() The bulk of its specification is based on Dolby Atmos, but at the same time it also allows other systems to be compatible within this protocol. The film and television industry (The Society of Motion Picture and Television Engineers) SMPTE 2098 series aims at standardizing immersive audio, allowing different providers can exchange their bitstreams. MPEG-H also includes a sophisticated HOA component, allowing SBA audio. ![]() The latest immersive audio systems are mostly object-based, where Dolby Atmos and MPEG-H are dominant commercial brands on the market. It becomes generally agreed that an immersive audio system consists of three categories: channel-based audio (CBA), object-based audio (OBA), and scene-based audio (SBA).Ĭonventional 5.1/7.1 surround sound formats are typical examples of CBA systems. Finally, the review is concluded by a brief touch of industry trend and applications. Then the rendering and playback of immersive audio is explored. This is followed by immersive audio storage and transmission. Secondly, the immersive audio capture and creation is described. First an introduction to immersive audio is provided. ![]() The content is organized as the followings. In this review, the author introduces the acquisition, transmission, and rendering algorithms of immersive audio technologies, touching upon both software and hardware. As the slogan of 2019 AES International Conference on Immersive and Interactive Audio puts it: Creating the next dimension of sound experience. ![]() New developments in 5G, edge computing, smart sensing, and AI create new frontiers for heightened level of immersive experience. The past decade has witnessed a surge in immersive audio systems, ranging from professional systems in cinemas to consumer grade systems for domestic, automotive, VR/AR, and mobile platforms. ![]()
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