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hello all,
i have a small room for rec vocals (10/8 feet & 9.5 feet hight)... everything is fine except when sing/play Note C3 at 440hz tune. got a bass ring like booooooo
can anyone help how to get rid of this wired bass ring.
thanks

Try to avoid 90 degree wall corners. I know it's very generous advise but there are so many ways to do it...

http://www.acoustics101.com/
(good info if it does come from the manufacturer... )

or just buy their products...

http://www.auralex.com/
http://www.tubetrap.com/

Maybe a dumb question, but just to be sure... Are there monitors in the vocal room? (As opposed to headphones.)

Thanks samplaire, Garyb. acoustic is most difficult thing to measure... long way to go
@blazesboylan.. no,i don't have monitors in the vocal room. just a headphnoe & mic.

**Guys how do done your acoustics in your voacl room?
Thanks

just put up a curtain on the problematic wall.. or evena blanket. whichever is cheaper. It seems all you need is something that absorbs the sound and not reflect it.

Also, from personal experience, I've been in a room where if you sang a certain tone at a certain place, it'll cause a low buzzing hum. It that case, it was the height of the cieling. So, using a carpet on the floor, or padding the cieling may be good.

Either way, you should find out where exactly your hum occurs, and look around to see what's causing it. Sing in different directions and stuff.

<font size=-1>[ This Message was edited by: kensuguro on 2004-06-10 22:33 ]</font>

just put up a curtain on the problematic wall.. or evena blanket. whichever is cheaper. It seems all you need is something that absorbs the sound and not reflect it.

The drapes idea is probably best, but "on the wall" is not necessarily the ideal placement. In fact, the most potent placement for a sound absorber like drapes would be at a standing node in the room -- where the air pressure is lowest and the particle velocity is highest. You can theoretically calculate this based on your room dimensions, but your best bet is just to tweak the curtain position by ear.

An addition which could also help: patches of carpet attached to the wall at mouth-height. If the standing wave is horizontal then this will help a little.

I saw a photo a while back of a control room in which a guy had "curved" a 4x8 sheet of plywood (by brute force) as a sound deflector. Looked kind of cool, but rather labour intensive if you ask me...

Johann

You can theoretically calculate this based on your room dimensions, but your best bet is just to tweak the curtain position by ear.

Ya, definitely.

D'you check out the acoustic101 site by the way? It kinda blew me away cuz they start off by telling you how to build your floor and cieling! That's a bit too, uh.. hardcore for me.

Ken: I agree. I have immense respect for people who meticulously build and maintain their studios. If you're getting paid the big bucks to create music, then great.

But most of us are either doing music for the love of it, or just trying to break even. We have to cut corners -- otherwise we'll never get anything done. The hard part is choosing which corners to cut!

If I had the big bucks, I'd have a ranch somewhere in Toscani with an 80 channel SSL console and tons of microphones and outboard gear and hardwood floors and perfect acoustics and a supermodel wife and... bla bla bla drool...

Meanwhile, back at the batcave, I can't even figure out why my mic sounds like Edgar Allan Poe's "The Telltale Heart". Bump...hisssss...bump bump.... Bump...hisssss...bump bump....

Johann

you guys are great ya got some new idea.
first i have to damp the cieling. using 8" foam might help but i'll have to cut those foam like a bass trap. god knows what will happen i had padup all three walls and one side is a slide door. also have a carpet in floor but need more carpet under the mic stand.
Thanks all