Recording Area need advice

  • Thread starter Thread starter Dracon
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Not that I'm a smoker or that I'm going to light a fire in my spare bedroom. But, if I can get a fire retardant foam, I'd probably go with that. So I guess as far as foam (for the highs) I'll end up at GC.

I've looked on line and in the Yellow pages for my area, and no one seems to carry this stuff. What the heck did you guys look under. I've looked under insulation (added commercial to it), Building Materials, and Construction Supplies.
Any suggestions? All I find is Lumber Yards, Hardware Stores, and concrete.
 
Call this number to find who a local dealer might be in your area: 303-978-4900. This is the Johns Manville number.


Well, I have to say, all of the foam in my studio is Auralex. As I stated before, I get a hell of a deal on it at GC.

But if I couldn't afford it, I would probably be using something such as Foam By Mail. Acoustically, I think it probably performs reasonably similar.

*On edit - This is my first experience into owning my own studio but did spend 8 years in Nashville as a session player. Worked in some extremely high end facilities there. I watched and learned a lot.

Peace.
 
Okay!

I've found some local guys, that sell insulation. I don't know if they have the Corning 703 or not. I have a question I was at the SAE website reading and stuff, and I used the RT60 Calculator I get the following results

125Hz - .62
250Hz - .87
500Hz - 1.45
1000Hz - 1.74
2000Hz - 2.17
4000Hz - 2.86

So my biggest problem according to the RT60 calculator and what I've read is the 500Hz and above range. Supposedly I'd want anything between .4 and .5, which I don't have anywhere.
Is this foam that I need, or some carpets and the bass traps?

Hey Thanks pdlstl!
 
Two more silly questions.
1. Is Rockwool only for Europe?
2. I've heard the the Pink Stuff can be used for noise reduction as well?
 
I've heard the the Pink Stuff can be used for noise reduction as well?
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Noise reduction? Only within a two leaf assembly, such as a wall, or ceiling. It does nothing for transmission loss by itself. For absorption, it is not dense enough. Use RIGID fiberglass(like Owens Corning 703 panels) for that purpose. The absorption is via RESISTANCE to air molecule movement within the fibers of the fiberglass. This resistance turns molecular movement energy into heat.(but don't try to heat your house with it :D ) Although Pink fiberglass DOES absorb to a certain degree, it doesn't have the density to "resist" this movement of air molecules to the degree that rigid fiberglass does, so it has a lower absorption coefficient. I believe Pink is in the 2lb per cubic foot range and rigid fiberglass is about 6lb per cubic foot, but I could be off a little.
So my biggest problem according to the RT60 calculator and what I've read is the 500Hz and above range. Supposedly I'd want anything between .4 and .5, which I don't have anywhere.
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Don't count on that calculator to give you true results. Small room RT-60 is filled with all kinds of misnomers. For one, modes decay at different rates, especially in small rooms. Even measuring it in small rooms is difficult. The best approach to SMALL rooms is absorption up the ying yang, then signal process to taste. But as usual, my disclaimer is in full force in this regard.( MY .02 is NOT EXPERT ADVICE)
fitZ
 
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RICK FITZPATRICK said:
I believe Pink is in the 2lb per cubic foot range and rigid fiberglass is about 6lb per cubic foot, but I could be off a little.
Don't count on that calculator to give you true results. Small room RT-60 is filled with all kinds of misnomers.
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I don't know what is considered a small room. By bedroom standards it really more like a medium size bedroom (12 x 14 x 9 - Feet), but I have a bunch of stuff in there as well. I have two bookshelfs by the window sitting in an L-Pattern, I have a upright piano, the corner desk with the computer, and the room has a carpet on pad on plywood or chipboard (I'm not sure which). In addition, I have a small rug in the center of the room. There are also two guitars with cases, and a violin with a case, as well as a music stand.
The room does have a 9' ceiling which causes echo in the high and mid ranges, due to all the empty large sheetrock walls (drywall). As you see the diagram it does have a strange shape.
The 703 rigid fiber board, seems kinda hard to find on-line. I'll be calling today to find out if any of the local outfits carry it.
 
I finally found someone who actually carries the Owens Corning 703 Stiff Fiberglass Sheets. Now the stupid question.
Since they will only sell me a packet at a time (96 square feet 2-inch or 192 square feet 1-inch) that gives me either 12 or 24 2x4 sheets. After I build all of my Bass traps. I figured I could make a like a movable partition with the leftover sheets (something that folds up).
My question, is how stiff is this stuff? Do I basically have to build a frame around each sheet to get a 6' wall or can I put 1 1/2 sheets together in one frame to make a 2x6 sheet?


Pro Tools User said:
www.foambymail.com is gonna a cheaper alternative then GC or any other place around.
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Hey Thanks for the information! I'll look into that website!
 
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