John Sayers' Recording Studio Design Forum Archive

Hello I made 2 and 4 inch 2'x4' fiberglass absorbers. I would like to make my own scatter plates (diffuser overlays) out of thin pressed wood fiber panels. Kind of like this:
http://www.gikacoustics.com/product/gik ... ter-plate/

Already have the 2'x4' overlay panels. How do I figure out the pattern for cut-outs? Recommendations?

I plan to hang them at 45 deg angle along wall and ceiling.
thanks,
Herman

How do I figure out the pattern for cut-outs? Recommendations?

That's a proprietary design, so you probably can't just cop it directly. Or maybe you could, if you ask Glenn Kuras yourself: he's the owner of Gik Acoustics, and also posts on the forum occasionally. If you talk to him very nicely, he might let you copy that... or not!

But the basic principal is simple: those are not tuned bass traps (gaps way too large, not sealed), so it's just a matter of figuring out how much of the mid and high energy you want to reflect back to the room, and the rough frequency range you want to do it at. So you'd make the slats wide enough to not be acoustically small at the frequencies you want to reflect, and set the ratio of gap-to-slat such that you are reflecting the right amount of energy. EG, if you wanted to reflect half the energy back, then you'd make the gaps exactly as wide as the slats, for a 50% ratio. If you wanted to reflect more energy. If you'd make the gaps smaller. Etc.


- Stuart -

Thank you for the informative posts.

Thank you for the informative posts.