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SlatWall Frequencies
Posted: Fri Apr 02, 2004 10:34 pm
by Harper
Hey All
My Control room is coming along (SLOW)
I'm onto the slat walls now.
But I want to know what frequencies I should aim for, when building the Slats.
I know that there is a calculator, but I already have my angled walls up
so how do I calculate the frequencies?
Posted: Tue Apr 06, 2004 7:07 am
by cfuehrer
bump
Posted: Thu Apr 08, 2004 5:43 am
by Aaronw
Have you analized your room yet for any potential spikes in frequencies?
Just a thought...
Posted: Fri Apr 09, 2004 3:25 pm
by AndrewMc
Analized the room? - sorry couldn't resist
Posted: Fri Apr 09, 2004 9:46 pm
by Harper
No I haven't checked for frequency spikes
I don't know how to do that with the angled walls up.
Posted: Sat Apr 10, 2004 2:14 am
by knightfly
The best you can do using calculations instead of actual measurements is to take the average dimensions of the room in each axis, and plug them into either roomtune (construction forum download on this site) or ModesV2, available at studiotips.com, or something similar.
For real response, you'd need something like ETF, a software analyzer for around $150 (basic software) to $550 (total package, including omni mic and preamp and test CD and all plug-in options) - it's available at etfacoustic.com -
As far as calculating your slats (once you determine what Fo you need) you can also take the average depth of the cavity. It's been discussed that (theoretically)in order to get the full effect of varying depth, a slat wall would need to have vertical slats and individual separators inside (making several "mini-slat absorbers", each of a differing depth) - however, it's my feeling (no proof, just gut feel) that the varying depth would broaden the peak response and smooth out the absorber's effect (a good thing)
Hope that helped... Steve
Posted: Tue Apr 20, 2004 9:16 am
by jazzmania
Actually, Steve, BBC 1992-10 gives us reason to believe that you don't have to subdivide a slat absorber into separate chambers to broaden the bandwidth. Their study revealed that even without subdivision of the air space, the response was NOT the average but in fact more specific to each area. They were talking about different size slots, but I wouldn't be surprised if it also applied to the varying depth of the air space you get in a corner.
Lee