Hi Adam Do you know these guys ? http://twobigears.com
Guillaume > On 13 nov. 2014, at 04:52, Adam Somers <a...@jauntvr.com> wrote: > > To clarify, as a bunch of Stanford alumni (one of CCRMA myself), ambisonics > was well known to us at Jaunt VR when we got started. Through our dealings > with Len at CoreSound we get connected to David who has provided immensely > useful tools for A->B conversion, head-tracking, and real-time binaural > downmix. > > VR video (or as we call it, Cinematic VR) is in some ways the perfect > use-case for ambisonics. This year we've created hundreds, if not > thousands, of b-format recordings with accompanying 360º 3D video. > > Still, I've yet to find a solution for b-to-binaural which is as convincing > as some of the BRIR-based object-sound spatialization packages (e.g. DTS > HeadphoneX and Visisonics Realspace). I think what's primarily lacking is > externalization, which perhaps can be 'faked' with BRIRs. I'm thinking of > a 'virtual listening room' where the b-format recording is played through > BRIRs instead of anechoic HRTFs. Anyone have experience with that? > > Cheers, > > Adam Somers > Jaunt, Inc. > http://jauntvr.com > > On Wed, Nov 12, 2014 at 5:59 PM, Stefan Schreiber <st...@mail.telepac.pt> > wrote: > >> David McGriffy wrote: >> >> There does seem to be a lot of interest in ambisonics to binaural these >>> days. It certainly seems that way to me since I’ve been immersed in it of >>> late. >>> >>> Stefan, if your suggestion to the folks at JauntVR is what turned them on >>> to ambisonics, then I must thank you as I have been having a great time >>> working with them to provide custom ambisonics code, including binaural >>> conversion. >> - They (JauntVR) have used Ambisonics before I even heard about them, so >> Ambisonics didn't need my help to be "discovered" by the JauntVR >> development team... if there was any decisive "suggestion" to use >> Ambisonics in this context, it was probably the fact that Ambisonics is an >> established and very usable 3D audio format/framework. And further that we >> have microphones to record FOA (soundfield mic) or even HOA fields >> (spherical array microphones, eigenmike etc.). >> >> Binaural recordings would be another choice for "3D audio capture" - >> binaural recordings are "colored" or personalised from the very start, >> though. Even worse: How would you apply HT to binaural recordings? This >> doesn't seem to work at all... >> >> - In my (short) contact with JauntVR, I suggested (only) to consider the >> use of some parametric decoder. (for example Harpex) >> >> I expect that I will also have some level of binaural conversion out in >>> general purpose plugins eventually. >> >> Great news. Hopefully this won't take very long. The demand for this is >> already there - and probably will increase. >> >> >> Best, >> >> Stefan >> >> >> David McGriffy >>> VVAudio.com >>> >>> On Nov 12, 2014, at 5:10 PM, Stefan Schreiber <st...@mail.telepac.pt> >>> wrote: >>> >>> >>> >>>> 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) >>>> _______________________________________________ >>>> 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. >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: <https://mail.music.vt.edu/mailman/private/sursound/ >> attachments/20141113/84820105/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. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <https://mail.music.vt.edu/mailman/private/sursound/attachments/20141112/f39ab14a/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.
