Hi Antoine, I don't know of any out-of-the-box solutions for that, maybe other people on the list do, but a DiY solution is to use one of the audio programming environments that can stream audio, and they have modules for ambisonic decoding and rotation.
Puredata (Pd) has such objects from where you can stream the audio, and then on the client side, have a predate patch that takes head tracking input, rotates the B-format, and does the binaural decoding. Objects from IEM, Graz, do all these operations, and it is easy to integrate head-tracking in Pd at present (e.g. using the Razor IMU). This is a solution that needs though some development from your side, using Pd's visual programming style. One correction, you do not need to convert to stereo if you are using head tracking and headphones, but to binaural audio, so you have to get some HRTFs involved at the last stage. Best regards, Archontis Politis ________________________________________ From: Sursound [sursound-boun...@music.vt.edu] on behalf of Antoine Simon [anto...@oxygenstream.fr] Sent: 02 June 2016 19:13 To: sursound@music.vt.edu Subject: [Sursound] Using Ambisonic for a live streaming VR project Hello, We would like to use an ambisonic microphone + a 360° camera for live streaming VR projects. I know how to stream the 360° video in live for a VR headset like GearVR or > a Cardboard. > But I would like to understand more about how to stream the ambisonic > audio. *This is what I understood so far (maybe I'm wrong):* - Ambisonic audio equals to 4 channels in "B" format (W, X, Y and Z) - The player (client side) need to interpret those 4 channels in "B" format into a stereo, depending on the VR Headset position into the 3d space. *My basic Question:* Do you know an exemple or a way to stream that ambisonic audio + a player to interpret the stereo depending on the VR Headset position in realtime? *My further questions:* - Can we transform those 4 channels in "B" format into a 4.0 AAC for the streaming without loosing too much data compared to a WAV PCM? - How to interpret those 4 channels in "B" format into a stereo, depending on the VR Headset position into the 3d space? Thanks in advance for your answers... Best regards, *Antoine SIMON* Live Events Manager, OxygenStream Mob: +33 698 171 875 | Tel: +33 954 826 133 anto...@oxygenstream.fr | http://oxygenstream.fr [image: OxygenStream Website] <http://oxygenstream.fr/> -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20160602/b16e9f8a/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on. _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
