When thinking about acoustics and how they function in
theaters it’s important to understand that even though you have speakers and
amps, the theatrical space for sound is still important. Sound doesn't all come
from one place, there is a dynamic about it, which is why sound is used to be
able to locate the position of an object in space, based on what ear you hear
things from and how far away the sound was made. In theaters speakers are set
up so that you have voices and the main dialogue coming at you from the front
of the theater while all the background noise and other sound effect hit you
from the side. In scary movies the switch it up which is why you feel a sense
of being watched because the noise is coming from behind you. The same thing
happens in headphones, the bass and tenor will be split between the right and
left headphone. (When you listen to duet both voices don’t come out the same
ear). This is important to recognize because it means that in theaters you can’t
have point direction when it comes to acoustics. Point direction is what
happens when you have a funnel type room or a concave shape. It points all the sound
particles into one specific point. In theaters you want an equal spread of the
noise, so that every seat is the best seat. The best way to do this is to have
no parallel walls, floors, or ceilings. And if you want to be really fancy you
should have them curved even. My acoustic tiles are all curved tiles stuck
against a circular room in to absorb and diffuse sound evenly.
Convex curves spread sound evenly
Concave curves spread sound with a point-source
A diagram about concave and convex curves
The Curved acoustic tiles pinned against the curved wall
The curved wall of the theater space and the acoustic effect on it
A picture of the .STL file
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