[LAD] A Cathedral in your backyard

torbenh at gmx.de torbenh at gmx.de
Tue May 8 12:46:46 UTC 2007

On Wed, Apr 25, 2007 at 10:02:29AM +0200, Fons Adriaensen wrote:
> On Wed, Apr 25, 2007 at 09:15:35AM +0200, Jens M Andreasen wrote:
> > What I think would be possible as an experiment though (without
> > involving a budget the size of the Pope or TU-Berlin), is to place a
> > large amount of uniform speakers in a circle and then feed them with the
> > same monophonic signal. If everything works as expected, it should then
> > appear like the sound emerges from the center of the circular array of
> > speakers.
> > ...
> > Would that work? 
> It probably would, *if* you can get all speakers to be exactly in phase
> over the entire frequency band. This will be difficult at HF, and having
> part of the range  not focused will destroy the effect and identify the
> radios as the source of the sound. 
> You don't even need a full circle or sphere. I'm currently involved in
> a project using an array of 228 speakers / 64 channels suspended as a 3m
> diameter 'chandelier' from the ceiling. It will create sound sources moving
> above and around the listener's head. 

are you writing your own software to do this ?
mine still needs some minor fixes to handle this sort of setup.

how are the speakers connected to the channels ?

> FA
> Follie! Follie! Delirio vano ? questo !
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torben Hohn
http://galan.sourceforge.net -- The graphical Audio language

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