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Journal Article Open Access

MPEG-I Immersive Audio -- Reference Model For The Virtual/Augmented Reality Audio Standard

Authors: Herre, Jürgen; Disch, Sascha

Journal of the Audio Engineering Society · Volume 71 · Issue 5 · pp. 229–240 · May 2023

Abstract

MPEG-I Immersive Audio is a forthcoming standard that is under development within the MPEG Audio group (ISO/IEC JTC1/SC29/WG6) to provide a compressed representation and rendering of audio for Virtual and Augmented Reality (VR/AR) applications with six degrees of freedom (6DoF). MPEG-I Immersive Audio supports bitrate-efficient and highquality storage/transmission of complex virtual scenes including sources with spatial extent and distinct radiation characteristics (like musical instruments) as well as geometry description of acoustically relevant elements (e.g., walls, doors, occluders). The rendering process includes detailed modeling of room acoustics and complex acoustic phenomena such as occlusion and diffraction due to acoustic obstacles and Doppler effects as well as interactivity with the user. Based on many contributions, this paper reports on the state of the MPEG-I Immersive Audio standardization process and its first technical Reference Model architecture. MPEG-I Immersive Audio establishes the first long-term stable audio format specification in the field of VR/AR and can be used for many consumer applications such as broadcasting, streaming, social VR/AR, or Metaverse technology.

Details

Publication
Journal of the Audio Engineering Society
Volume
71
Issue
5
Pages
229–240
Publication date
May 6, 2023
Affiliation
International Audio Laboratories Erlangen, Erlangen, Germany - A Joint Institution of Friedrich-Alexander-Universität Erlangen-Nürnberg and Fraunhofer IIS; Fraunhofer IIS, Erlangen, Germany (See document for exact affiliation information.)
Type
Journal Article