i think it will work - have heard enough phantom sources in archaeological sites - but ideally your dome should be a hemisphere - that is when you will get precise reflected points. umashankar
i have published my poems. read (or buy) at http://stores.lulu.com/umashankar > Date: Tue, 19 Feb 2013 11:50:04 +0000 > From: augustineleu...@gmail.com > To: sursound@music.vt.edu > 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130219/417987be/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
