You can try Spats Transaural thing. I honestly think you'd be better off building a quadraphonic installation from scratch rather than trying to convert things. By all means use your binaural recording s in it - but be aware the interaural time differences can cause a slight phase difference between speakers which can lead to comb filtering and a kind "weakening " of the sound - I've never liked any of my binaural recordings over speakers (I used those little soundman things) Good luck!
On Fri, 5 Mar 2021 at 13:01, Marc Lavallée <m...@hacklava.net> wrote: > That's what I'm looking for: a simple bodge, to be able to use stereo > and/or binaural recordings that could be available instead of FOA > recordings; I don't want to miss opportunities to record something > interesting because I don't have a 5th order microphone, only for some > interactive entertainment... > > Transaural can be amazing, and it could work for my use case... > > Thanks for the tips. I may fail miserably, but it's worth a try. > > Marc > > Le 21-03-05 à 06 h 44, Dave Hunt a écrit : > > Hi Marc, > > > > Yes, this is very difficult to do properly but a simple bodge is > surprisingly effective. Undoing the built in binaural encoding from the > original recording is next to impossible. > > > > I have done what is suggested in the ambisonic.net sources in Max. XY > or polar coordinates place the left and right channels at variable points > on a circle in a 1st order ambisonic encoder, giving a basic B-format > output. This image can then be rotated by fairly simple maths to alter the > coordinates of both channels together, or by rotating the B-format signal. > The rest is done by an ambisonic decoder. > > > > Once in B-format, the WXY components can be manipulated; gain, eq, > directional dominance. You can also apply a Z coordinate to move the image > up and down. > > > > The result is undeniably diffuse, but usable. Generally binaural > recordings sound OK as normal stereo, obviously without the proper spatial > impression. > > > > Interesting effects are also achieved by treating stereo as UHJ and > deriving B-Format from that. I think there is something on that on > ambisonic.net, as well as super stereo and Dolby stereo. > > > > Transaural crosstalk cancellation only works over a very small area, and > becomes more complex for quad. Many such systems go for some form of > closely spaced dipole speaker layout, possibly with extra speakers. The > University of Southampton had something like that, but references might > take some finding. > > > > Ciao, > > > > Dave Hunt > > > > > >> On 4 Mar 2021, at 17:00, sursound-requ...@music.vt.edu wrote: > >> > >> From: Marc Lavallée <m...@hacklava.net> > >> Subject: [Sursound] binaural to FOA? > >> Date: 4 March 2021 at 13:55:42 GMT > >> To: Surround Sound discussion group <sursound@music.vt.edu> > >> > >> > >> I have a "back to the basics" question. > >> > >> For a simple project I planned to record in FOA or HOA, but the final > render would be in simple quad (horizontal). So I don't need a lot of > resolution. I enjoy recording with binaural microphones (the kind that > looks like cheap earbuds), so I can record continuously without being > noticed. > >> > >> So I wondered; is there a method to "convert" binaural to > horizontal-only FOA? Apparently there is: > >> > >> https://www.ambisonic.net/quaduhj.html > >> > >> http://www.ambisonic.net/ambimix.html > >> > >> I guess my question is: what would be the software equivalent of a > pan-rotate device? > >> > >> Marc > > _______________________________________________ > > 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. > -- Artist website: www.augustineleudar.com Business website: www.magikdoor.net -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20210305/fe6aac73/attachment.htm> _______________________________________________ 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.
