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yet another cloud question
Old 22nd October 2013
  #1
Lives for gear
yet another cloud question

hi all

just a theoretical question for the top of your heads:

my ceiling (plaster-boards) height is 98 inch
wood frames are 47 x 39 x 4 inch / open on the sides
ive got knauf UNIFIT35 Ecose wool, 7,8 inch thick, ~5 kPa s/m²
possible airgap between cloud and ceiling: 2 inch

the absorbtion should work, suprise, as broad and as deep as possible

should i put 2 layers (2x7,8 inch) inside the frame and compress it to 4 inch, or
just 1 layer ?

thing is, i only got 1 attempt :D

thx in advance
Old 22nd October 2013
  #2
Gear Guru
 
Ethan Winer's Avatar
 

Lightbulb

With 8 inches of material, I'd leave it as is with one layer. If it was thinner compression might be useful. But once you get to 8 inches thick (or more) there's less benefit from compression.

--Ethan

The Acoustic Treatment Experts
Old 22nd October 2013
  #3
Lives for gear
thanks a lot !
Old 22nd October 2013
  #4
Gear Guru
 
Glenn Kuras's Avatar
Quote:
wood frames are 47 x 39 x 4 inch / open on the sides
Don't worry about opening the sides. It is not going to make really any difference.
Old 23rd October 2013
  #5
Lives for gear
Quote:
Originally Posted by Glenn Kuras View Post
Don't worry about opening the sides. It is not going to make really any difference.
not that i had to cut some holes in them
the sides are open, because i used stacked pictureframes connected via wood-blocks
but out of interest:
why are open sides helpful on wall-panels, but not on clouds ?

thx
Old 23rd October 2013
  #6
Gear Guru
 
Glenn Kuras's Avatar
We are actually writing a article on this which should be on our website shortly. I will post it once it is up. But basically it would help with upper frequency decay a bit but not with the direct reflection. We have tests to show this.
Old 23rd October 2013
  #7
Lives for gear
Quote:
Originally Posted by Glenn Kuras View Post
We are actually writing a article on this which should be on our website shortly. I will post it once it is up. But basically it would help with upper frequency decay a bit but not with the direct reflection. We have tests to show this.
cool
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