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Acoustic Treatment Optimise acoustics in your studio environment for accurate mixing - the best advice here..

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Old 26th February 2009 , 04:10 PM
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well all is in even the RS60, i got 2 5 slab packs of each. iv had a re think. should i frame them or wrap them in material alone?

also if i frame them what should it be framed in? i will be posting day by day pics of my progress.

i will either way be wrapping them in Hessian material



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Old 26th February 2009 , 04:13 PM
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QUESTIONS

i will have loads of questions for the more experienced guys here so please bare with me.

im also curious about Bass traps, can i attach 2 rail type beams in the corners and just slot the RS60 in so that either side touches a wall corner each forming a triangle shape and if so do i have to fill the void with something or leave it empty?
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Old 26th February 2009 , 04:20 PM
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Quote:
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well all is in even the RS60, i got 2 5 slab packs of each. iv had a re think. should i frame them or wrap them in material alone?

also if i frame them what should it be framed in?

i
These pics from a friend of mine's work on his studio acoustics may help?


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Old 26th February 2009 , 04:20 PM
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For your panels, I'd say definitely have to frame them, with 4" x 3/4" softwood planks... that's how I did my ceiling mounted panel and then wrapped the whole framed item with material. When making the frame, glue and screw the butt-jointed corners (and any intermediate "cross-bar" planks adde for rigidity). The rockwoll alone would break up fairly quickly if just wrapped without the protective (and shape-holding!) frame... the frame is also the anchor point for the fixings for hanging them on the wall.
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Old 26th February 2009 , 04:21 PM
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Bingo... Modz' pictures explain it much better!
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Old 26th February 2009 , 04:23 PM
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.. and deffo go for Dave's suggestion of using hooks to hang the panels 'off' the wall by about an inch approx.
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Old 26th February 2009 , 04:24 PM
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thanks Modz1 and Dave, Modz1 what is the second picture showing? and why has the rocksilk been wrapped in what looks like grease proof paper? doesn't that defeat the absorption qualities a little for lower end freq's?
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Old 26th February 2009 , 04:28 PM
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thanks Modz1 and Dave, Modz1 what is the second picture showing? and why has the rocksilk been wrapped in what looks like grease proof paper? doesn't that defeat the absorption qualities a little for lower end freq's?
Ignore that greaseproof paper looking layer (of corse, you're right, it would if used defeat the object), it looks like he was just forming the frame.. he lives in Greece and I think that's how each layer was delivered..

As for the second pic, that shows the rear of the panel with a thin layer of muslim or burlap (I think) holding the rear of the rockwool in, and the blue fabric is the slightly better quality material (or just the 'right' colour), for the front facings..

As always, if Frank, Trev or Dave maybe spot anything which may be a mis-indication here, I guess they'll point it out - I am no expert, but just passing on pics and info I've acquired - HTH
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Old 26th February 2009 , 04:29 PM
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Quote:
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thanks Modz1 and Dave, Modz1 what is the second picture showing? and why has the rocksilk been wrapped in what looks like grease proof paper? doesn't that defeat the absorption qualities a little for lower end freq's?
If you want to wrap the rockwool in anything inside the panel, in order to make it easier to handle... either use more Hessian, or possibly at a pinch to save on costs, use a cotton dust sheet. Using paper will defeat the effectiveness of the trap as it will form a barrier to airflow into the rockwool which is actually the active part of the sound attenuation.
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Old 26th February 2009 , 04:31 PM
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Blimey... talk about a double act... so Modz, do you want to be Laurel or Hardy??
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Old 26th February 2009 , 04:34 PM
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Well I'm gonna be the skinny one scratching his head eh Dave lol..
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Old 26th February 2009 , 04:41 PM
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sorry Modz1 to me it looks thinner then the rockwool frame? are you sure its the frame? im getting confused now, as far as im aware i will frame the rockwool in the wood dave suggests then stretch the material over it? does the frame have to have some type of backing ?
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Old 26th February 2009 , 04:51 PM
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Quote:
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Well I'm gonna be the skinny one scratching his head eh Dave lol..
Well then that's another fines mess you've got me into, Stanley... mm, mm, mmmm.

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sorry Modz1 to me it looks thinner then the rockwool frame? are you sure its the frame? im getting confused now, as far as im aware i will frame the rockwool in the wood dave suggests then stretch the material over it? does the frame have to have some type of backing ?
Simple 4 sided frame, sit rockwool inside frame, wrap it all in the material and staple to the back-side of the frame. The frame should be rigid enough without needing any kind of solid backing (which would only reduce it's effectiveness anyway). If the frame doesn't feel rigid enough to you, add one or two cross-pieces (like a ladder) or put some steel "L" brackets on the corners to stiffen them up (nearly all DIY stores will stock them).
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Old 26th February 2009 , 04:53 PM
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Well then that's another fines mess you've got me into, Stanley... mm, mm, mmmm.



Simple 4 sided frame, sit rockwool inside frame, wrap it all in the material and staple to the back-side of the frame. The frame should be rigid enough without needing any kind of solid backing (which would only reduce it's effectiveness anyway). If the frame doesn't feel rigid enough to you, add one or two cross-pieces (like a ladder) or put some steel "L" brackets on the corners to stiffen them up (nearly all DIY stores will stock them).
great, im sorted off to get the wood tonight then, as for the material????
any suggestions?

cheers guys

im dreading i get all this done and not even notice a difference
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Old 26th February 2009 , 05:05 PM
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great, im sorted off to get the wood tonight then, as for the material????
any suggestions?
Burlap or Hessian would be good choices. You'll want something that lets air flow through it, so a reasonable test is to hold some over your mouth, blow through it and see how much movement of air you feel with your hand on the other side of the material.
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