boomy room

[farodyssey]

anybody know any effective and cheap ways to lower down the boominess of a recording room in the 200hz - 400hz zone? i have this horrible build-up/resonence in those frequencies in my room and it really ads up to some nasty mudiness in my mixes.

i put in auralex foam, difuser panels, and bass traps in this room and it worked out really well to kill a lof the echoing and reflections. but now i think because it has attenueted the higher frequencie so much, it's left this low boominess.

i want to put in more "padding" or maybe like a couch or some book shelves but i don't know if these kinds of things will make my problem worse. will the just attenuate more higher frequencies? what kinds of things absorb lower frequencies?

any suggestions?

[AlexW]

What kind of bass traps are you using? Where are they placed? More than likely you need additional bass traps in the corners of your room--both where the walls meet each other and where the ceiling meets the walls.

[farodyssey]

i have the auralex corner foam types. two in each corner where the walls meet but none where the walls meet the ceiling. sounds like an alright idea but i haven't really noticed that much of a difference with the existing bass traps anyway.

[Ethan Winer]

Far,

> i think because it has attenueted the higher frequencie so much, it's left this low boominess. <

This is a common problem.

> what kinds of things absorb lower frequencies? <

Rigid fiberglass, or products made from it.

> any suggestions? <

One is my Acoustics FAQ:

www.ethanwiner.com/acoustics.html

There's also a lot of good advice on my company's site, linked under my name below.

--Ethan