Open-Source Spatial Audio Compression for VR Content

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2016, No. 10, pp. 1–9
Abstract: With the advancements of VR environments and 360-degree video, ambisonics have reemerged as an important technique in providing immersive audio experiences. An alternative to channel based 3D sound, ambisonics represent full-sphere sound independent of loudspeaker location. This paper discusses how open-source compression technologies can efficiently transport audio for next-generation immersive media. Two open source codecs, Vorbis and Opus, are compared to AAC for first-order ambisonics. The presented work shows that open and free audio compression is reasonable and promising for delivery of spatial audio content over Internet.
Publication Date: 2016-10-25
DOI: 10.5594/M001712
ISBN: Print: 978-1-61482-957-7
Link: https://doi.org/10.5594/M001712
Author(s): Jamieson BrettleGoogle, Inc.
Jan SkoglundGoogle, Inc.
Keyword(s): Spatial Audio, 360° Video, VR, Ambisonics
Copyright: © 2016 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

ISO 13818-7:2006 [Active]
Use spatial audio in 360-degree and VR videos. (n.d.). Retrieved September 26, 2016, from https://support.google.com/youtube/answer/6395969?hl=en EXTERNAL
D. Mukherjee, J. Bankoski, A. Grange, J. Han, J. Koleszar, P. Wilkins, Y. Xu, and R. Bultje. "The latest open-source video codec VP9-an overview and preliminary results." Picture Coding Symposium (PCS), 2013. IEEE, 2013. EXTERNAL
Google. (2016). One step closer to reality: Introducing 360-degree live streaming and spatial audio on YouTube. Retrieved September 26, 2016, from https://youtube.googleblog.com/2016/04/one-step-closer-to-reality-introducing.html EXTERNAL
Commons:Project scope/Summary. Retrieved September 27, 2016, from https://commons.wikimedia.org/wiki/Commons:Project_scope/Summary EXTERNAL
VP9 Video Codec. (n.d.). Retrieved September 26, 2016, from http://www.webmproject.org/vp9/ EXTERNAL
WebRTC Home | WebRTC. (n.d.). Retrieved September 27, 2016, from https://webrtc.org/ EXTERNAL
Michael A. Gerzon,”Periphony: With-Height Sound Reproduction”. Journal of the Audio Engineering Society, 1973, 21(1):2–10. EXTERNAL
J.-M. Valin, G. Maxwell, T. Terriberry, and K. Vos, “High-quality, low-delay music coding in the Opus codec,” Proc. AES 135th Convention, New York, no. 8942, October 2013. EXTERNAL
A. Hines, E. Gillen, D. Kelly, J. Skoglund, A. Kokaram, and N. Harte. ViSQOLAudio: An objective audio quality metric for low bitrate codecs. The Journal of the Acoustical Society of America, 137(6):EL449–EL455, 2015. EXTERNAL
Google. (n.d.). Google/spatial-media. Retrieved September 26, 2016, from https://github.com/google/spatial-media/blob/master/docs/spatial-audio-rfc.md EXTERNAL
C. Nachbar, F. Zotter, E. Deleflie, and A. Sontacchi, “AmbiX - A Suggested Ambisonics Format”, Ambisonics Symposium 2011, Lexington (KY) 2011 EXTERNAL
Can I use... Support tables for HTML5, CSS3, etc. (n.d.). Retrieved September 27, 2016, from http://caniuse.com/#search=vp9 EXTERNAL
Draft-ietf-codec-ambisonics-00 - Ambisonics in an Ogg Opus Container. (n.d.). Retrieved September 26, 2016, from https://tools.ietf.org/html/draft-ietf-codec-ambisonics-00 EXTERNAL
R-REC-BS.1387-1 — “Method for objective measurements of perceived audio quality”, Recommendation ITU-R BS.1387-1, Geneva, Switzerland, 1998-2001 EXTERNAL
R-REC-P.863 — "Perceptual objective listening quality assessment", Recommendation ITU-R P.863, Geneva, Switzerland, 2011 EXTERNAL
IETF RFC 6716 [Active*]

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-M001712.json

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Jamieson Brettle and Jan Skoglund; Open-Source Spatial Audio Compression for VR Content, SMPTE Meetings and Conferences ( October 2016); SMPTE, 2016, ISBN: 978-1-61482-957-7. Available at https://doi.org/10.5594/M001712

Snippet:

Jamieson Brettle and Jan Skoglund; Open-Source Spatial Audio Compression for VR Content, SMPTE Meetings and Conferences ( October 2016); SMPTE, 2016, ISBN: 978-1-61482-957-7. Available at https://doi.org/10.5594/M001712

HTML (ISO 690 compliant)

Preview:

Snippet:

<span class="citation">Jamieson Brettle and Jan Skoglund; <cite>Open-Source Spatial Audio Compression for VR Content</cite>, SMPTE Meetings and Conferences ( October 2016); SMPTE, 2016, ISBN: 978-1-61482-957-7. Available at <a href="https://doi.org/10.5594/M001712" target="_blank" rel="noopener">https://doi.org/10.5594/M001712</a></span>

SMPTE's HTML Pub

Preview:

Snippet:

<li>
Jamieson Brettle and Jan Skoglund; <cite id="bib-10-5594-m001712">Open-Source Spatial Audio Compression for VR Content</cite>, SMPTE Meetings and Conferences ( October 2016); SMPTE, 2016, ISBN: 978-1-61482-957-7
<span class="doi">10.5594/M001712</span>
</li>