Which decoder configuration for FOA and TOA in to binaural is the best? Any references?
Bo-Erik Den ons 15 maj 2019 07:20Fernando Lopez-Lezcano <na...@ccrma.stanford.edu> skrev: > On 5/14/19 6:56 PM, Aaron Heller wrote: > > Hi Sean, > > The problem with feeding first-order program material into a third-order > > decoder is that the per-degree max_rE gains will be wrong. > > For 2D: 1, 0.707 vs. 1, 0.924 (, 0.707, 0.383) > > For 3D: 1, 0.577 vs. 1, 0.861 (, 0.612, 0.305) > > Maybe you could expand on what perceptual effect that has? [*] > > Even better would be graphs that show how the soundfield is distorted by > doing that. I don't remember seeing something like that, but maybe you > have a reference... > > > I'll also point out that for first-order program material, listening > tests > > show that dual-band decoding and NFC filters make a substantial > difference. > > Still important at third-order, less so for fifth-order and above. See > > http://www.ai.sri.com/~heller/ for further details. > > > > We're planning a new set of HOA listening tests on CCRMA's new 56-speaker > > array. > > Party party! > -- Fernando > > [*] in my experience piping first order through a third order decoder > sounds "reasonable" (I have done it, mea culpa), that is, until you use > a proper first order decoder for the same speaker array with the same > materials - then it sounds better. > > > > > On Tue, May 14, 2019 at 12:51 PM Sean Devonport < > rsdevonport1...@gmail.com> > > wrote: > >> > >> Hey there everyone, > >> > >> Want to ask if anyone has any thoughts on decoding first order > ambisonics > >> to higher order decoders? > >> > >> I've been experimenting with decoding first order on third order > decoders > >> and I still feel like they work relatively well in my setting (a > >> hemispherical dome-like configuration of 14 speakers using AllRAD maxRE > >> decoders). > >> > >> I do know there is some upmixing software in the works ( > >> http://research.spa.aalto.fi/projects/compass_vsts/), but so far, > >> unfortunately, I haven't been too happy with the quality of it (however > I > >> do really like the other plugins in SPARTA). Maybe I'm not using it > >> correctly but I find the upmix generally comes out too sharp. > >> > >> I'm hoping someone may have experimented a bit more with this and could > >> give me their opinions, tips, tricks, or point me in the direction of > some > >> research that could give me a solid answer. > >> > >> Many thanks in advance! > >> > >> -- > >> Sean Devonport > >> -------------- next part -------------- > >> An HTML attachment was scrubbed... > >> URL: < > > > https://mail.music.vt.edu/mailman/private/sursound/attachments/20190514/ee0e2bde/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/20190514/38c97712/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. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20190515/8194c744/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.
