My mom has a problem with me using foam, even though we have some old
foam sitting around: its very flammable. And I dont blame her, my
studio is right next to the furnace room. But I do wanna get some
absorbtion in there!!! What's a good alternative to foam that's not at
all flammable and easy to come by (and something that a junior in high
school can afford!!!)

"Matt" wrote in message
om

My mom has a problem with me using foam, even though we have some old
foam sitting around: its very flammable. And I dont blame her, my
studio is right next to the furnace room. But I do wanna get some
absorbtion in there!!! What's a good alternative to foam that's not at
all flammable and easy to come by (and something that a junior in high
school can afford!!!)

Fiberglas board, Fiberglas batts , Tectum

Try and get some panels of Owens Corning 703. This is compressed rigid
fiberglass boards about 2" thick and 2'x4' It is kind of hard to come
by, you will have to do some searching in your area, most likely if you
call Owens corning they can tell you were to get it in your area. There
are also rigid panels of rockwool available which are some what
cheaper(like 1/2 the price) and usually stocked at the same places that
have the 703 both are good candidates. Both need to be covered with
some kind of framework and cloth, but they are relatively cheap, much
cheaper than foam, and work better over a broader spectrum of sound.

2 places you can get some good information are, the acoustics group in
yahoo groups, and the acoustics forum at recording.org. Also I think
there is a good acoustics primer on the Auralex site(If my memory is
correct thats where it was) called acoustics 101. Download that and
study it, theres tons of good info there.



Twist Turner
http://tinyurl.com/ul70

Matt,

You want rigid fiberglass. It's 2-4 times better than foam, yet it costs
less! Go figure. But you'll want to wrap it in burlap or some other fabric
for appearance and to keep the fibers in place. For the complete story see
the Acoustics FAQ, second in the list on my Articles page:

www.ethanwiner.com

Also note that my Acoustics forum has moved from recording.org to the much
classier EQ Magazine site:

http://www.musicplayer.com/ubb/ultim...ubb=forum;f=26

--Ethan

But where can I get that rigid fiberglass? It's not available in my
local hardware store. Can I get it at home depot or do I have to order
it from somewhere? Also, even though it's cheaper than foam, it still
may push my limits for the amount of money i can budget to absorbtion.
How much would it be?

Actually before you answer that can you tell me one thing: in a room
thats 12Lx8Wx7H, should I only focus on absorbtion, or should I use
some diffusion? This is a room for tracking AND mixing FYI.
Thanks--Matt

"Ethan Winer" ethanw at ethanwiner dot com wrote in message ...
Matt,

You want rigid fiberglass. It's 2-4 times better than foam, yet it costs
less! Go figure. But you'll want to wrap it in burlap or some other fabric
for appearance and to keep the fibers in place. For the complete story see
the Acoustics FAQ, second in the list on my Articles page:

www.ethanwiner.com

Also note that my Acoustics forum has moved from recording.org to the much
classier EQ Magazine site:

http://www.musicplayer.com/ubb/ultim...ubb=forum;f=26

--Ethan

I already told you how to find rigid fiberglass, call Owens Cornings 800
number and ask for dealers in your area. I live in Chicago which is a
big city and it took me a couple weeks to find a source, had I called
Owens corning in the first place I would have found it right away.

Home depot does not sell it and neither do most building supply places.
I forget the name of the place I got mine from but it is a national
chain, Specialty Sales or something like that. Do a search on
groups.google.com, you'll find it.



Twist Turner
http://tinyurl.com/ul70

Matt,

Besides Twist's good advice to call 800-GET-PINK you should look in your
Yellow Pages under Insulation Suppliers and Insulation Contractors, and also
Heating & Air Conditioning Supplies.

in a room thats 12Lx8Wx7H, should I only focus on absorbtion, or should I
use some diffusion?

For a room that small I wouldn't worry about diffusion. You need absorption,
plenty of it, and it must work well down to low frequencies.

--Ethan

In article writes:

But where can I get that rigid fiberglass? It's not available in my
local hardware store. Can I get it at home depot or do I have to order
it from somewhere?

You need to find an industrial building materialssupplier, not a home
supplier, because it's not used in homes. Call Owens Corning, ask for
the sales department, tell them where you live, and ask for the name
and address of some nearby distributors. If you're really out in the
sticks, it may not be right around the corner and you'll have to drive
an hour or two.

Actually before you answer that can you tell me one thing: in a room
thats 12Lx8Wx7H, should I only focus on absorbtion, or should I use
some diffusion?

In a room that small, you really don't have room for planned
diffusors. If there's a book case, arrange the books so that they're
not all in a neat row all the same depth.




--
I'm really Mike Rivers - )
However, until the spam goes away or Hell freezes over,
lots of IP addresses are blocked from this system. If
you e-mail me and it bounces, use your secret decoder ring
and reach me he double-m-eleven-double-zero at yahoo