As far as I know, higher order ambisonics over loudspeakers has a quite confined sweet spot. Higher order spherical harmonics produce an in phase and out of phase signal in opposite speaker pairs. So if you pan a signal towards a particular speaker, the opposite speaker will produce a lower level antiphase signal, which will work when you are positioned equidistant from both speakers, causing a certain amount of nulling of the air pressure at that spot, but positive particle velocity, like a figure 8 mic pattern. So as you move around the room, the sonic image will change because of the opposite pairs of speakers. It’s also very difficult to isolate a sound in a single speaker, unless you are working at seventh order ambisonics, with a 64 channel signal. So I am wondering why you are considering ambisonics over vbap?
I use the Blue Ripple Sound third order ambisonic plug-ins in Reaper and have also been experimenting with the IEM seventh order plugins which could be worth experimenting with. Reaper and Nuendo are the only DAWs which will give you 64 channel busses for 7th order, and IEM have just launched a customisable speaker array decoding plugin. You can also try MATHIAS Kronlachers 7th order ambiX suite for binaural decoding at the same time. They also free, so you could experiment for nothing! PTHD has just updated to 16 channel busses but logic can only do 8, so first order only, which won’t give you much positional accuracy. Hope this helps! Cheers Jack Sent from my iPhone > On 27 Mar 2018, at 00:17, Søren Bendixen <soerenbendi...@gmail.com> wrote: > > Hello > I need some advice! > > I’ve been doing music/sounddesign for museums for a while now (read: > https://www.asoundeffect.com/museum-sound-design/ > <https://www.asoundeffect.com/museum-sound-design/>). My next project could > be the one using ambisonics!… > I have never really used ambisonics but have been reading a lot lately, and > demoing plug ins - up til now only in headphones converting stuff to binaural. > And in the next few days I´ll test some ambisonics over my speakers. I did > that a while back and it sounded very cool. > I have a studio with 8 ch out, 8 speakers (and a sub) - but hope I can get my > hands on 8 more channels and 8 more speakers. > > I have logic Pro x, ableton live 9 (upgrading soon..) and Reaper. I do most > of my work in Logic Pro X, and would like to stay in Logic - the exhibition > opens in less than three months…so digging deep into another DAW is difficult. > > I’m a composer and I compose music and sounddesign.I tend to use standard > technical configurations in odd ways (parallel stereo, some sourround > configs), Mostly it is ways of composing and arranging every sound as a part > of a symphony. It do that in different ways - and I started out working this > way because I was asked to do 3 compositions/sounddesign playing in the same > room - (please read the article from asoundeffect). > > Exhibition rooms are also often odd designs - and so is speaker placement. > But this time I have the possibility to work in 3 circles and this is what > want to do: > > - Inner circle: Speak in headphones + two sounddesigns: one related to the > speak, the other layers from the sounddesign from the two other circles. I > want this sounddesign to be 3D/Binaural. > > - Middle circle: 8 speakers hanging from a rig about 4 - 5 meters up pointing > down into the circle.(45 degrees i guess..). This sounddesign will consist of > music, local sound related to object/themes in this part of the exhibition. > This should be in ambisonics. some of this sounddesign will appear in > headphones as binaural sounds. I can be two different audiofiles (managed by > Qlab). > > - Outer circle: 8 speakers placed on the walls - the room is square but we > will try to create an illusion that it is circular by projecting movies on > the walls. Here I want another sounddesign consisting of mainly season > related sound (spring, summer, winter - storm, rain, wind, and just the sound > of a cold cold morning..). > his sounddesign should be ambisonics too. > If possible I would like sounds from ex. horses (or people walking or wind > blowing) wander from the outer circle into the middle circle and into > headphones. and back. > > The sounddesign/music from the middle circle and the outer circle will blend > (and should blend) and when you put on headphones you will hear layers of the > middle and outer circle designs - so you never leave what I call the overall > sounddesign. > > So how do I do that..? > > First I need to know: Is it true that Ambisonics does not “aim for” a sweet > spot - Paul Virostek says it does > (https://www.creativefieldrecording.com/2017/03/01/explorers-of-ambisonics-introduction/#more-16883 > > <https://www.creativefieldrecording.com/2017/03/01/explorers-of-ambisonics-introduction/#more-16883>) > a lot says it doesn’t..? > It is very importing to find out about, because an exhibition crowd walks > around so a narrow sweet spot is no go. > And my main reason for using ambisonics is that is believe it is the best > format to create space/soundroom where you are ex. in the middle of a storm. > or you walk around inside a composition/orchestra.I also like the idea that > ambisonics is not depending on a fixed speaker configuration..right? > > So I want to create big spaces BUT the same sounddesign needs both overall > sound and local sound (sounds that stays in a specific position)- and > wandering sounds - it seems to be possible too to blend an overall ambisonic > full circle of sound with local placed sounds in the same design…? > > And what software do I need? > I guess I need software that can deal with ambisonics files and make > ambisonics files out of mono, stereo, surround files > and software that can convert ambisonics sound into binaural sound for > headphones. > > I´m testing > Noisemakers ambihead, and Ambipan (good stuff and working in logic too) > DearVR music (and tomorrow testing DearVR pro for ambisonics output) - > (sounds great and the panner is very good) > And Logics own binarual output. (seems ok for binaural but misses some > automation) > Wigware (seems ok but cannot work in logic) > > I’m about to test > Waves ambisonics B360 + NX > Rondo360 > > Everthing will run in sync controlled by Qlab - I guess Qlab can handle > ambisonics, right? > I found this about Qlab and ambisonics but it involves Reaper > https://forum.cockos.com/showthread.php?t=161556 > <https://forum.cockos.com/showthread.php?t=161556> > > I’m used to do the different layers of sound design in different sessions and > combining them afterwards but this time I will try and make all three in the > same session…in logic. > > I also have sound particles but it is stand alone and I might use for some > odd stuff. > > So - what do you recommend? > And what do see as problems/issues? > > I’m sorry for taking your (holliday) time but I need someone to says: Buy or > get this software and do this - and you´re good :-) > And I know I’m addressing my questions to a forum of people how does far more > weird stuff than this :-) > > I hope I’ve made myself clear. If not: tell me. > > Med venlig hilsen/Best regards > > Søren Bendixen > Composer/Sound Designer/Producer > > Winner of Monitor Industry Award 2016 for the exhibition “Gladiator”, At > Moesgaard Museum > > New album Music for exhibitions out 15 January 2017 > > > > > > Company: Søren Bendixen & Anette Krag > soerenbendi...@gmail.com > +45 60624394 > www.soerenbendixen.com > Facebook > Soundcloud > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <https://mail.music.vt.edu/mailman/private/sursound/attachments/20180327/e3c21b73/attachment.html> > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: Musicforexhibitions_2x32cm.jpg > Type: image/jpeg > Size: 61248 bytes > Desc: not available > URL: > <https://mail.music.vt.edu/mailman/private/sursound/attachments/20180327/e3c21b73/attachment.jpg> > _______________________________________________ > 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.
