The guys you need to talk to are Dave Worrall and Kimmo Vennonen who
have one a lot of things in Geodesic domes down in Oz. Dave, at least,
was a member of this group- he as a website at
http://www.avatar.com.au/worrall/
Dave
On 18 February 2013 17:35, Augustine Leudar <augustineleu...@gmail.com> wrote:
> 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
>>
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>
>
>
> --
> 07580951119
>
> augustine.leudar.com
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--
As of 1st October 2012, I have retired from the University, so this
disclaimer is redundant....
These are my own views and may or may not be shared by my employer
Dave Malham
Ex-Music Research Centre
Department of Music
The University of York
Heslington
York YO10 5DD
UK
'Ambisonics - Component Imaging for Audio'
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