Hi there - I did several large (about 4 acres) walk through sound installations in the dome shaped tropical biome at the Eden project in Cornwall . I guess my application would be very different from yours. I designed the sound installation in an adjacent dome first - there were the weirdest reflections ever - for example at certain frequencies the sound pooled and was louder in one tiny patch on the other side of the building than 3 m away from the speaker etc etc. When I got it in the main biome it sounded completely different of course. The only thing I can advise you is not to go in with a set idea of how your going to do it but to try different configurations and see what sounds best once your in there - I know its a pain in the neck but these things usually need to be tuned to acoustic peculiarities that are impossible to predict. Its why I always like to have at elast three days before an event to do this. You can read about some the installations here<http://web.archive.org/web/20110719132826/http://www.edenproject.com/come-and-visit/whats-on/heart-of-darkness.php> Hope this helps !
On 18 February 2013 16:47, Neil Waterman <neil.water...@asti-usa.com> wrote: > 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 > -- 07580951119 augustine.leudar.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130218/2c95516e/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
