This is the first one i found, but it will give you an idea.

J

http://www2.spsc.tugraz.at/people/georgios/publications/papers/marentakis_2014c.pdf


On 27 March 2018 at 10:27, Augustine Leudar <augustineleu...@gmail.com>
wrote:

> Sorry Im a bit busy so didnt read all. I did quite a similar project with
> two concentric rings of speakers one inside the other. My advice would be
> to not use ambisonics but Vbap or some form of amplitude panning - sweet
> spot is less of an issue. I do a lot of walk around installations and
> occasionally for museums,
> best,
> Gus
>
> On 27 March 2018 at 08:01, Jack Reynolds <jackreynolds...@gmail.com>
> wrote:
>
> > 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
> > >
> > >
> > >
> > >
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>
> --
> Dr. Augustine Leudar
> Artistic Director Magik Door LTD
> Company Number : NI635217
> Registered 63 Ballycoan rd,
> Belfast BT88LL
> www.magikdoor.net
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