MPEG-H 3D Audio [wikipedia]
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MPEG-H 3D Audio, specified as ISO/IEC 23008-3 (MPEG-H Part 3), is an audio coding standard developed by the ISO/IEC Moving Picture Experts Group (MPEG) to support audio channels, audio channels and audio objects, or higher order ambisonics (HOA). MPEG-H 3D Audio can support up to 64 loudspeaker channels.
Read more at http://en.wikipedia.org/wiki/MPEG-H_3D_Audio
