AES Los Angeles 2014
Tutorial T2

Thursday, October 9, 9:00 am — 10:30 am (Room 306 AB)


T2 - MPEG-H 3D Audio

Schuyler Quackenbush, Audio Research Labs - Scotch Plains, USA

MPEG-H 3D Audio is the newest MPEG Audio standard. With the move to Ultra-High Definition video and large screens that provide an immersive visual experience, it is compelling to have an equally immersive audio experience. MPEG-H 3D Audio provides both compression and flexible rendering for such immersive audio programs. These can be, for example, 9.1 or 22.2 channel audio programs for presentation on loudspeakers or spatialized for headphones. In addition, programs can include dynamic audio objects or can be Higher Order Ambisonic recordings. The standard makes extensive use of metadata to control the audio presentation and to support user interaction. A very important aspect of 3D Audio is its rendering engine. It is not expected that all consumers would have a 22.2 loudspeaker setup, so the rendering engine is able to adapt the audio program to the loudspeaker configuration of the consumer’s setup. This can include fewer loudspeakers, incorrectly place loudspeakers or non-standard loudspeaker configurations. The tutorial will review example scenarios in which immersive audio can be enjoyed (home theater, tablet TV, smartphone TV); give an overview of the technology; and give a look at compression and rendering performance.

AES Technical Council This session is presented in association with the AES Technical Committee on Coding of Audio Signals

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