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Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec

Abstract: 

Virtual Reality (VR) audio scenes may be composed of a very large number of audio elements, including dynamic audio objects, fixed audio channels and scene-based audio elements such as Higher Order Ambisonics (HOA).
Potentially, the subjective listening experience may be replicated using a compact spatial format with a set number of dynamic objects and scene-based elements, retaining only the perceptual essence of the audio scene. The compact format would further enable a reduction in the complexity of subsequent compression and rendering. This paper investigates these hypotheses by exploring the use of a compact format that consists of up to four dynamic objects and nine HOA channels, with the Enhanced Voice Services (EVS) codec being applied to a 4-channel down-mix of the compact format.

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Paper Details

Authors:
David McGrath, Stefan Bruhn, Heiko Purnhagen, Michael Eckert, Juan Torres, Stefanie Brown, Dan Darcy
Submitted On:
7 May 2019 - 3:10pm
Short Link:
Type:
Poster
Event:
Presenter's Name:
David McGrath
Paper Code:
3734
Document Year:
2019
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Document Files

VRStream.pdf

(58)

Keywords

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[1] David McGrath, Stefan Bruhn, Heiko Purnhagen, Michael Eckert, Juan Torres, Stefanie Brown, Dan Darcy, "Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec", IEEE SigPort, 2019. [Online]. Available: http://sigport.org/3950. Accessed: Nov. 18, 2019.
@article{3950-19,
url = {http://sigport.org/3950},
author = {David McGrath; Stefan Bruhn; Heiko Purnhagen; Michael Eckert; Juan Torres; Stefanie Brown; Dan Darcy },
publisher = {IEEE SigPort},
title = {Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec},
year = {2019} }
TY - EJOUR
T1 - Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec
AU - David McGrath; Stefan Bruhn; Heiko Purnhagen; Michael Eckert; Juan Torres; Stefanie Brown; Dan Darcy
PY - 2019
PB - IEEE SigPort
UR - http://sigport.org/3950
ER -
David McGrath, Stefan Bruhn, Heiko Purnhagen, Michael Eckert, Juan Torres, Stefanie Brown, Dan Darcy. (2019). Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec. IEEE SigPort. http://sigport.org/3950
David McGrath, Stefan Bruhn, Heiko Purnhagen, Michael Eckert, Juan Torres, Stefanie Brown, Dan Darcy, 2019. Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec. Available at: http://sigport.org/3950.
David McGrath, Stefan Bruhn, Heiko Purnhagen, Michael Eckert, Juan Torres, Stefanie Brown, Dan Darcy. (2019). "Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec." Web.
1. David McGrath, Stefan Bruhn, Heiko Purnhagen, Michael Eckert, Juan Torres, Stefanie Brown, Dan Darcy. Immersive Audio Coding for Virtual Reality Using a Metadata-Assisted Extension of the 3GPP EVS Codec [Internet]. IEEE SigPort; 2019. Available from : http://sigport.org/3950