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Acoustic Fabric
Old 1st June 2019
  #1
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chrismeraz's Avatar
 

Acoustic Fabric

I know the best is Guilford, but it isn't easy to get in Europe.

I am installing 40cm of fiberglass to cover the whole ceiling and two walls of my studio right now. I have all the material here and I'm ready to start, I just have one nagging doubt...

The fabric I chose is a thin cotton with a closed weave... but now I'm wondering if I should change the fabric. It doesn't have visible holes between the fibers like the FR701 has. I can't imagine a thin piece of fabric would change the behaviour of bass energy in the room, but I'm worried because it's a big project. Do you think fabric can change the performance of fiberglass traps?
Old 2nd June 2019
  #2
Lives for gear
Hello,

The best ?


All frabrics with a grammage <= to 300g/m² can do the job.

One exemple

White absorbers, impossible?
Old 2nd June 2019
  #3
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AudioWonderland's Avatar
 

Quote:
Originally Posted by dinococcus View Post
Hello,

The best ?


All frabrics with a grammage <= to 300g/m² can do the job.

One exemple

White absorbers, impossible?
I was wondering about that. I just picked up fabric for a build. The inexpensive polycotton options were all 140gsm
Old 3rd June 2019
  #4
Gear Addict
 

For low frequency (how low?) it should be ok at that weight.

However, in principle, if you can easily blow air through it, then sound can easily pass through it, into the absorption material, hence the oft-mentioned "blow-through" test for acoustically transparent fabric.
Old 3rd June 2019
  #5
Gear Nut
 
Ultrasonic_UK's Avatar
 

Breathable fabric isn't a requirement for bass traps as far as I can tell. Some will deliberately use panels with a foil layer on the front (FRK) and you definitely can't breath through that.

It's RFZ panels where this is critical since denser fabrics will reflect more higher frequency sound.
Old 5th June 2019
  #6
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The benefit of the Guilford stuff is the fire rating. Commercial builds may require it.
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