im looking for a way to absorb sound in my iso booth. roughly the room is 8'x7' and 7.5' in height. the walls are made of normal drywall and there is a 2'x3' window on one wall and a door in the next wall. im thinking about using heavy drapes as one method or im thinking about building my own sound absorbers using rigid fibre glass. since the room is small and there are many corners with 90degree angles i will need bass traps as well and im looking for methods to control bass frequencies. this booth will mainly be used for rap vocals and some r&b recording.
please respond with any suggestions, methods i can use to acheive my goal of deadening the sound in the room and controling bass, thanks.
sound absorber ideas
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dymaxian
- Senior Member
- Posts: 357
- Joined: Tue Dec 02, 2003 7:21 am
- Location: Madison, Wisconsin
If you don't mind losing some floor space around the perimeter of the room, here's what I'd do...
If you want to just kill off most of the reflections, you can take 2" or 4" rigid fiberglass, just cover it with fabric, and hang it on the walls. The more of them you hang, the deader it gets.
If you want it really dead, cover all the walls with 4" rigid fiberglass spaced 4" off the walls (use 2x4s to frame the offset).
In the iso booth I'm planning to build, I'm going way over the edge, but I plan on using it for isolating heavy metal guitar amps, so it'll need a lot of low freq absorption, too... So for the deader-than-dead iso booth, I'll be building all the walls inside-out (with the drywall on the back-side of the stud) and I'll be putting panel traps in the stud spaces. Then I'm going to build a false-wall out of 2x4s, but spaced with 24" between the studs instead of 24" on center, so that 24" wide rigid fiberglass panels fit neatly between them. This will be set 2" or so from the face of the panel traps, to keep them free to vibrate, and the face of this wall will be covered with fabric.
I'll have the lows covered by all kinds of different panel traps, and everything else will get sucked up by the rigid fiberglass wall.
This is pretty extreme, tho- like I said, this will be the deader-than-dead room that I can turn a marshall stack up to 11 in. I doubt you'll need this for rap vocals. =)
If you want to just kill off most of the reflections, you can take 2" or 4" rigid fiberglass, just cover it with fabric, and hang it on the walls. The more of them you hang, the deader it gets.
If you want it really dead, cover all the walls with 4" rigid fiberglass spaced 4" off the walls (use 2x4s to frame the offset).
In the iso booth I'm planning to build, I'm going way over the edge, but I plan on using it for isolating heavy metal guitar amps, so it'll need a lot of low freq absorption, too... So for the deader-than-dead iso booth, I'll be building all the walls inside-out (with the drywall on the back-side of the stud) and I'll be putting panel traps in the stud spaces. Then I'm going to build a false-wall out of 2x4s, but spaced with 24" between the studs instead of 24" on center, so that 24" wide rigid fiberglass panels fit neatly between them. This will be set 2" or so from the face of the panel traps, to keep them free to vibrate, and the face of this wall will be covered with fabric.
I'll have the lows covered by all kinds of different panel traps, and everything else will get sucked up by the rigid fiberglass wall.
This is pretty extreme, tho- like I said, this will be the deader-than-dead room that I can turn a marshall stack up to 11 in. I doubt you'll need this for rap vocals. =)