I was talking about a whole lot cruder approach - not actually rendering into WFS - let the dome physically do that. Position a sound at point A, get an image at point B. for more image-locations, use more speakers, to move the image, pan from one to t'other, and live with the slight imprecision during movement.
Oh, the point was, especially at HF, - point the speaker at the dome, let the dome do the rest... ;) - cheap to try out Dr. Peter Lennox School of Technology, Faculty of Arts, Design and Technology University of Derby, UK e: p.len...@derby.ac.uk t: 01332 593155 -----Original Message----- From: sursound-boun...@music.vt.edu [mailto:sursound-boun...@music.vt.edu] On Behalf Of Augustine Leudar Sent: 19 February 2013 11:50 To: Surround Sound discussion group Subject: Re: [Sursound] Any experience with dome acoustics? You need LOTS of very closely aligned speakers and the software will take a while to install/learn, then rendering the channels also takes time if you do it that way. The "holosonic" point source next to the ear is my holy grail - I havent got it yet - but I am told IRcams system can do this. I have heard stories of weird phase effects next to the ear in other systems, and have got that working - but thats not quite the same. The truth is you could probably get something more spectacular going with quarter the amount of speakers and Vbap. On 19 February 2013 11:39, Peter Lennox <p.len...@derby.ac.uk> wrote: > Just a quick one: > > It seems to me that a dome could be interesting used as a kind of > wavefield synthesis device. > > Domes have the interesting property of focussing sound at a point that > is opposite the source, as it were. So you can create a 'holosonic' > point source right next to someone's ear > > Dr. Peter Lennox > > School of Technology, > Faculty of Arts, Design and Technology University of Derby, UK > e: p.len...@derby.ac.uk > t: 01332 593155 > > > -----Original Message----- > From: sursound-boun...@music.vt.edu [mailto:sursound-boun...@music.vt.edu] > On Behalf Of Neil Waterman > Sent: 18 February 2013 16:47 > To: Surround Sound discussion group > Subject: [Sursound] Any experience with dome acoustics? > > Greetings, > > Does anyone on the list have prior experience installing ambi-based 3D > sound into 'dome' shaped replay environments? > > Any tips, specifically on speaker placement, approaches, etc. > > The problems I am facing include a 12 foot 240 degree partial dome made of > fabric, an 18 foot 240 degree partial dome using fiberglass and a much > bigger 40 foot 360 degree full dome in fiberglass. > > All of the above will actually be 1/2 domes in the sense they are not full > spheres, but 1/2 a sphere resting on the ground. > > My only prior experience was with a full sphere, fibre dome that was a > nightmare to put sound into... > > One option for the 40 foot dome is to use a central cluster of directional > speakers, hung in a "chandelier" that would use the dome surface as a > virtual speaker through reflection, but I have never tried this. My concern > with this is that the listeners (who will be roughly central in all these > dome areas) will hear both the direct sound and reflected sound and end-up > with a confused mess. > > For all of these domes there will be an 18" skirt area below the dome that > could be used for loudspeakers around the periphery - is it better to try > to beam the sound directly at the listeners position, or perhaps use a more > diffuse speaker, facing up into the dome face? There will be space to get > at least one speaker overhead for all configurations. > > Regards, Neil > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > > _____________________________________________________________________ > The University of Derby has a published policy regarding email and > reserves the right to monitor email traffic. If you believe this email was > sent to you in error, please notify the sender and delete this email. > Please direct any concerns to info...@derby.ac.uk. > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > -- 07580951119 augustine.leudar.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130219/d21ed42b/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound _____________________________________________________________________ The University of Derby has a published policy regarding email and reserves the right to monitor email traffic. If you believe this email was sent to you in error, please notify the sender and delete this email. Please direct any concerns to info...@derby.ac.uk. _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
