VO-BB - 20 YEARS OLD!

Mike Sommer · Posted: Sun Jan 23, 2011 3:56 pm Post subject:

As stated above.

4-inches on all the walls and ceiling, including the door. You may be able to get away with 2- inches on two walls. Treatment needs to go corner to corner floor to ceiling, with 4-inches on the ceiling.

If you have a Low's near by you maybe able to order John Manville Insul-Shield 300 unfaced through them. Each bale contains 9 2x4' panels, you'll need 3 bales to get your 4-inches on all the walls
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Acoustics are counter-intuitive. If one thing is certain about acoustics, it is that if anything seems obvious it is probably wrong.

todd ellis · Posted: Sun Jan 23, 2011 4:15 pm Post subject:

ok, mike - help me out here - 4" on all sides + 4" more on the ceiling - given the original dimensions of the booth after the treatment he's got 22"x34" at about 6'2" tall to work in? am i completely jacked on the math? that seems like a VERY coffin-like space to me.

no disrespect intended - i'm assuming i'm looking at this wrong.
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Mike Sommer · Posted: Sun Jan 23, 2011 4:43 pm Post subject:

Nope, that's the problem of such a small booth made out of plywood.

You can try 2" but you'll still have resonance.

What's my rule of treatment?? The smaller the room the more treatment you need. Which is why I suggested a 6x6 booth, you need the room for treatment.

Had this been made out of drywall you would get an entirely different set of numbers, and thusly you could possibly get away with 2" on the wall.
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The Blog:
http://voiceoveraudio.blogspot.com/

Acoustics are counter-intuitive. If one thing is certain about acoustics, it is that if anything seems obvious it is probably wrong.

Mike Sommer · Posted: Sun Jan 23, 2011 5:08 pm Post subject:

If you take Chucks file and put a lowpass filter on the file and start lowering the frequency, you'll start to hear the walls resonating-- the low end rumble. That's the stuff that muddies the voice, that's the stuff that makes the voice unintelligible.

Then you're fighting the comb filter ring, these booths are just a mess, and it takes a lot to fix them. Plus being 1:1 in it length and width, you're now bringing in a whole different set of problems to the mix.

Chuck has a rather powerful voice, so I'll bet if you put your hand on the box you'll feel the walls vibrate a little.
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The Blog:
http://voiceoveraudio.blogspot.com/

Acoustics are counter-intuitive. If one thing is certain about acoustics, it is that if anything seems obvious it is probably wrong.