can I use this foam?

[Leeking]

I have a friend who works in a music store that make casing. The casing they make uses "egg-cart" foams on the upper side of the case. The foam is pretty dense.

Are they more or less the same as acoustic foams? can I use them as acoustic treatment for my home studio. I can get them for a fairly cheap price.

I dunno if they are flammable...

here is a pic of a mic casing for your reference that I pick up from studioprojects website (hope you don't mind Alan! )

[incursio]

It isn't so much the "foam" that deadens the noise, as the shape of the foam. Any soft, uneven surface will deaden sound waves to one degree or another. I say give it a shot ...

[atomictoyz]

Go ahead and use the egg cartons, whether they are the closed cell styrofoam or the regurgitated
cardboard ones. Pro studios for years used that stuff primarily because the places like auralex didn't exist.

Peace,
Dennis

[John Sayers]

For your info you can paint spray the foam if you don't like the black. Spray painting it doesn't effect the acoustic property. If you lify it off the wall - say 4" - it also improves it by lowering the frequency response.

hey this post should make my 2000th

cheers
John

[Leeking]

Originally posted by John Sayers
If you lify it off the wall - say 4" - it also improves it by lowering the frequency response.

Thanks John,

what do you mean by lifting it off the wall? hanging the faom on a hanger like a curtain?

Thanks!

[John Sayers]

When a wave reflect off a wall it reflects from zero energy. It hits the top of the wave (highest energy point) at 1/4 wavelength so by lifting off the wall with a timber frame for example the foam moves into the area of highest energy and the frequency is lowered
check this out:



cheers
John