Rooms suggestions/advices

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ShagWill

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Ok... I have to "treat" my control room, my vocal booth (a closet) and my bigger booth (my garage)

Since I don't have A LOT of money I have to find out solutions :)

For my garage (bigger booth), I don't need ALL the space, only a part in the center... so I tough about installing a carpet on the floor (the floor is acutally in cement) and suspend four floating walls. Two of them would be in sonopan+bublewrap and the two others would be in wood. Since they will be suspended from the ceiling, there will be about 6 inch of space under and over the wall. Also, I tough about building myself big foam corner for the corners. And no, the walls would not be parralel.

For the closet, I would isolate 2 walls with Sonopan and 2 others with wood.

And for my control room, everything in sonopan/bublewarp/carpet.

What do you think of this cheap solution ? What kind of sound I will achieve with this ?

Thank you !

William Simard
wsimard@yahoo.com
 
William, is this the Sonopan you're referring to?

http://www.pirobouw.com/pages/EN/

If so, it seems to be a slurry, not a solid sheet - how would you use it? Also, this company is based in Poland, are you somewhere near? Just curious, this is the first I've ever heard of that particular product, and it doesn't seem to be well-suited for what I believe you're trying to do... Steve
 
The SONOPAN I'm referring to is made by Cascades in Quebec City/Canada. It's sold in 4' x 8' sheets and they're solid... they are easy to broke but I will fix them into a 2"x2" wood frame. I will also paint them :)

They are something like 5/8" wide and green.

William
 
OK, new thought - were you intending to COAT the bubblewrap with the Sonopan slurry, let it dry, and use it for acoustic panels?

If so, that might work for a larger room but for smaller rooms you need mainly ABSORPTION, which I'm not sure if the Sonopan gives. From the description on their website, it does NOT sound like it's absorptive.

Do you have access to Knauf products where you are? If so, this is one of the best products for wall treatment you can find -

http://www.knauffiberglass.com/index.cfm?fuseaction=prd.dspProdDetail&ID=12

scroll down near the bottom of the page; the 76mm would be pretty good, but the 102mm will give more even absorption if you can afford it. If not, you can use the 76mm and space it off the wall by 50-100mm, it will be almost as good. Here are the two best choices -

3.0 PCF
(48 kg/m3) Plain 2"
(51 mm) .29 .65 1.11 1.13 1.06 1.03 1.00
3.0 PCF
(48 kg/m3) Plain 3"
(76 mm) .54 1.01 1.18 1.07 1.07 1.04 1.10
3.0 PCF
(48 kg/m3) Plain 4"
(102 mm) .95 1.11 1.17 1.07 1.07 1.06 1.10


The first #'s are the density in pounds per cubic foot, then in parentheses are the density in kilograms per cubic meter, and finally the row of numbers are the absorption rate per octave, starting at 125 hZ. 1.00 is theoretically perfect, but testing methods typically exceed that due to "edge effect" of the samples.

Note that the 102mm stuff has as good absorption at 125 hZ as it does at higher frequencies - if you can't afford that, use the 50 or 75mm and space it off the wall by a few cm.

I'm not sure what pricing will be like in your area, if you can find this product - I do know that it is one of the higher recommended acoustic treating products in the European market.

Post back if I only confused the issue, or you want to know more... Steve
 
Like I said, the SONOPAN is like big TICK green paperboard. I was thinking about wrap it into bubleswrap :) Any tough ?
 
Yeah, I don't think it would work very well - nor would anything else, if you are trying to get any degree of sound ISOLATION with that method. Sound proofing requires airtight seals in rooms, or you lose a lot of performance -

If all you want is to improve the acoustics WITHIN the room, then your idea should work. Just be sure to NOT put opposite floated walls parallel to each other, or you'll have flutter echo problems... Steve
 
I have a bunch of home made sonopan diffusors. THat stuff is evil to work with, the green dust get's everywhere and doesn't like coming out.

wrapping it in bubblewrap may work if it's out of the way, but sonopan is very brittle and flaky. You might want to frame and cover it.

The stuff is mostly for putting inside walls for sound proofing, so it may or may not have favourable accoustic properties. I can't really tell with the few diffusors I have hanging on walls.
 
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