Sampo Syreeni wrote:
On 2014-11-12, Braxton Boren wrote:
Our lab is working on some audio spatialization techniques that we'd
like to sync up with visual content over the Oculus Rift. We would
like to process the Ambisonic audio content separately (using
head-tracking data from the Oculus) for binaural rendering while the
interactive VR visuals are running on the Oculus.
What is this, a sudden landslide? I *just* got a demo from Ville
Pulkki on this precise stuff at Aalto, here. I'm betting you'd want to
contact him directly on this one.
Well, but I < did > write to Ville Pulkki during last week about VR and
other applications of Ambisonics and DirAC (or in general: Ambisonics
and parametric Ambisonics decoders). Which is probably just a further
coincidence...
Still waiting for the master's answer, though... :-D
--------------------------------------------------
"
See Bo-Erik Sandholm's recent posting on sursound (on "VR applications")
http://permalink.gmane.org/gmane.comp.audio.sursound/6227
...
... The combination of Ambisonics, DirAC and head-tracking (for
binaural decoders) could be a real game-change development.
"
In any case, the VR people have already discovered Ambisonics some while
ago - I remember that I myself have suggested to some representant of
Jaunt VR (obviously Jaunt VR is connected with the Oculus Rift train) to
consider the use of Harpex. (thread retrievable via sursound archives)
The bigger picture is of course that head-tracked Ambisonics seems to be
a natural fit for VR audio - VR includes HT "by definition", and needs
obviously some 3D audio infrastructure for the sound. Ambisonics offers
both an established 3D audio framework and (importantly, too...) 3D
audio capture!
Rotation of sound fields according to positional head data can be
realized in a straightforward and simple fashion - before the decoding
stage.
Best,
Stefan
I was just wondering if there are any freely available demos that
include both VR visuals for Oculus as well as Ambisonic sound files.
Dunno how freely available they are, they they exist. *Oh* do they
exist! :)
- VR visual content *integrated *with the Oculus Rift
- *Raw *Ambisonic recordings that go along with the VR simulation
The latter were played, at first order. Multiple clips too. I'm
betting the A-format has been entombed as well, because I seem to
remember at least one paper might be hanging on it. But let Ville fill
out the details. And of course Archontis Politis, who's working on his
PhD at Aalto -- and who demonstrated even wilder ambisonic minded
stuff to me on the same visit... 8)
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