Thanks for the reference! I'm definitely bookmarking your web site. Thank
you for sharing your knowledge.

It's odd to me: I don't ordinarily think of plywood, no matter how thin, as
being transparent to audio...but I guess at low frequencies it is?
Hmmm...would it be of any benefit at all to try to put some angles on the
plywood, i.e. instead of having a single 2'x8' piece, cut that into 2'
squares, and angle them a little bit from each other to get a bit of
diffusion, too? Looks like you would want to cut the fiberglass, too, so
that it sits on the plywood properly. Or would that create more problems
than it solved?

George Reiswig
Song of the River Music

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

trying to mix in a room that is basically 12'x10'x8' ... These have made
the room a place where I can actually record without hearing the room in
the
mics. But for mixing, I'm not sure.

If you're not miking low frequency instruments then you're probaby okay
recordign in a room treated only with thin foam partitions. But you're
correct to be concerned about mixing accurately, especially in a room that
size.

Have a look at the Acoustics FAQ, second in the list on my Articles page:

www.ethanwiner.com/articles.html

You'll also find several other articles about acoustics on that page.

Is it possible to make a room like this a place that you can get an
accurate mix, particularly in the 50-250Hz range?

Accurate is relative. But with enough bass trapping you can definitely
make
a room that size useable, and create reasonably portable mixes.

--Ethan