Hi Richard, I have to admit I am slightly confused by your response and wonder if what we are both referring too as time alignment and even DBAP are the same thing. However I am quite distracted at the moment I am currently working on my next installation so don't really have time to giver this the concentration it deserves - perhaps we could have a god chat about this early September as it is of obvious interest. PS I will also be PMing you about another matter, all the best, Augustine
On Mon, 19 Aug 2019 at 18:26, Richard Foss <r.f...@ru.ac.za> wrote: > Just catching up on your comment about time alignment with DBAP, Gus. > > I do think its useful to use delays - so for a particular real source > channel, delay its play out from a speaker far from the virtual source > longer than from a speaker close to the virtual source. With DBAP the > source channel will play from all speakers, albeit with different > amplitudes. For a person in an installation standing close to a further > speaker, the precedence effect could well come into play without > appropriate delays, as I see it. > > On 2019/08/18 1:26 PM, Augustine Leudar wrote: > > also you could use rew to eq each individual speaker. There's not much > > point time aligning DBAP because time align to where ? The beuaty of > using > > amplitude panning with irregualr speaker arrays is that there's no sweet > > spot, especially for walk through installations. > > > > On Sun, 18 Aug 2019 at 12:23, Augustine Leudar < > augustineleu...@gmail.com> > > wrote: > > > >> *should say "the software doesn't know you've placed the speakers in a > >> line not a circle" > >> Its a crude work around - but it works if you dont have time to learn > >> ICST. You can also try jamona. > >> > >> On Sun, 18 Aug 2019 at 12:21, Augustine Leudar < > augustineleu...@gmail.com> > >> wrote: > >> > >>> I use ICST in MAx MSP for irregular speaker arrays and it works fine > even > >>> though it says its "Ambisonics equivelant panning" if you reduce the > >>> directivity it basically works like a form of DBAP. It works really > well, > >>> Ive made sound sfly through mazes and up and down buildings with it. > You > >>> can even use a normal octaphonic panner to make things fly in a > straight > >>> line - at the end of the day the sound is traveling from one speaker > to the > >>> next - the software doesnt know youve placed the software in a line > rather > >>> than a circle. > >>> > >>> On Sat, 17 Aug 2019 at 23:33, Jonathan Kawchuk < > >>> jonathan.kawc...@gmail.com> wrote: > >>> > >>>> Hey everyone, > >>>> > >>>> I’m having a bit of trouble setting up a SPAT Revolution session for > an > >>>> irregular speaker array. > >>>> > >>>> > >>>> 1. I am working with an irregular array of speakers for an > installation > >>>> (see attached, speakers numbered 1-12). The speakers are in a long > hallway > >>>> and are irregularly placed in the x, y, and z planed though always > >>>> overhead. I would like to have sound move with each walker as they > pass > >>>> through the hallway by automating sound to move at average human > walking > >>>> speed. I am using Speaker 7 as an origin point (0, 0, 0). > >>>> > >>>> A. Which is the correct pan law to use? I have tried DBAP and KNN > but > >>>> the diagram of each speaker seems to be pointing in the wrong > direction, > >>>> esp. at the origin. I would like the speakers to point down towards > the > >>>> floor. > >>>> > >>>> B. Is it advised to select a single speaker as the origin point? > >>>> > >>>> 2. I have taken surround impulse responses from an array of 7 speakers > >>>> in a surround setup approx 19m from the origin. The microphone array > was > >>>> 7+4 (height) at 1m from the origin. If spatializing in SPAT, would I > make > >>>> the convolved signal 19m from the origin (where the speakers played > the > >>>> sweep) or 1m (where the microphone array was). > >>>> > >>>> 3. In either case, would I compute speaker alignment or normalize? > >>>> > >>>> 4. Are you aware of any products that can calculate multichannel > >>>> irregular speaker distances/correction curves from a test signal? > Something > >>>> like sonarworks or genelec SAM but not proprietary and with the > ability to > >>>> calculate actual speaker positions from test signals rather than > having to > >>>> scan the room (which I currently do using matterport) or measure by > hand. > >>>> > >>>> Thanks so much, > >>>> > >>>> Jon > >>>> > >>>> > >>>> -------------- next part -------------- > >>>> An HTML attachment was scrubbed... > >>>> URL: < > >>>> > https://mail.music.vt.edu/mailman/private/sursound/attachments/20190817/6e4ed719/attachment.html > >>>> -------------- next part -------------- > >>>> A non-text attachment was scrubbed... > >>>> Name: Arts Common Sound Install.pdf > >>>> Type: application/octet-stream > >>>> Size: 123847 bytes > >>>> Desc: not available > >>>> URL: < > >>>> > https://mail.music.vt.edu/mailman/private/sursound/attachments/20190817/6e4ed719/attachment.obj > >>>> _______________________________________________ > >>>> 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. > >>>> > >>> > >>> -- > >>> Dr. Augustine Leudar > >>> Artistic Director Magik Door LTD > >>> Company Number : NI635217 > >>> Registered 63 Ballycoan rd, > >>> Belfast BT88LL > >>> www.magikdoor.net > >>> +44(0)7555784775 > >>> > >>> > >> -- > >> Dr. Augustine Leudar > >> Artistic Director Magik Door LTD > >> Company Number : NI635217 > >> Registered 63 Ballycoan rd, > >> Belfast BT88LL > >> www.magikdoor.net > >> +44(0)7555784775 > >> > >> > -- > Professor Richard Foss > Computer Science Department > Rhodes University > Grahamstown 6140 > South Africa > > Tel: +27 46 6038294 > Cell: +27 83 288 9354 > email: r.f...@ru.ac.za > > _______________________________________________ > 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. > -- Dr. Augustine Leudar Artistic Director Magik Door LTD Company Number : NI635217 Registered 63 Ballycoan rd, Belfast BT88LL www.magikdoor.net +44(0)7555784775 -------------- next part -------------- An HTML attachment was scrubbed... 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