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asnively
Triple G
Joined: 17 Jun 2006
Posts: 3204
Location: Los Angeles
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 Posted: Tue Jan 04, 2011 11:56 am Post subject: |
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Kenny-- which TalkerTees shirt do you want to be available in another color? Sometimes it's just as easy as me turning that option on. For others, I just have to hop into Photoshop and make a tweak or two first.
Mike-- Do I need bass traps? Dad's coming this week to work on my booth a little. Should I start cutting up the yellow stuff for super chunks? Or are you inviting yourself over to stand in my corner? (Either way is fine!)
Also-- I think you said something somewhere about drywall being an effective bass trap. Does that mean you could conceivably put strips of drywall in all 8 tri-corners and call it a day? That doesn't seem possible...but I thought I'd check.  My guess is that this would be a much more specific trap and that a broadband absorber is a better choice for those who aren't experts. Right?
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Mike Sommer
A Hundred Dozen
Joined: 05 May 2008
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Location: Boss Angeles
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| Posted: Tue Jan 04, 2011 7:12 pm Post subject: |
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| asnively wrote: | | Mike-- Do I need bass traps? Dad's coming this week to work on my booth a little. Should I start cutting up the yellow stuff for super chunks? Or are you inviting yourself over to stand in my corner? (Either way is fine!) |
Amy my sweet, all you need to do is call and I am at your door.
But yes, you do need traps in as many of the corners as you can get them in.
How is the Flying Circus coming along?
| Quote: | | I think you said something somewhere about drywall being an effective bass trap. Does that mean you could conceivably put strips of drywall in all 8 tri-corners and call it a day? |
No, not like that. When used in conventional construction methods (such as on walls) drywall (gypsum) has bass absorbing properties.
Because walls are extremely similar to "panel-type" bass traps, which are known to have absorption peaks that correlate directly to the location of the primary "mass-spring" (flexing) resonance of walls. We can expect with our gypsum walls, to have the same low frequency absorption that correlate directly to the low frequency resonance of our studio walls also.
In simple terms, the resonance or "vibration" of the drywall between the stiffness of the frame that it is attached to, along with the insulation in the walls, our wall absorb and convert very low frequency energy into heat. This is a part of why we get noise reduction from sounds outside of the booth. In in very low frequencies, walls can reduce the effect of those very low frequencies, no mater what side of the wall you're on. 
This is very helpful when designing high performance rooms, a wall with low frequency sound absorption properties is desirable, as typical absorption treatments (bass traps, wideband absorbers) have diminished efficiency at very low frequencies.
It's also important to remember that the smaller the room the higher the frequency the room resonates at. Which is why we what to be in the largest room possible.
If i've lost anyone, ask questions.
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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. |
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Living Culture
Contributore Level V
Joined: 14 Oct 2007
Posts: 189
Location: Taipei
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| Posted: Fri Jan 07, 2011 10:26 am Post subject: |
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Mike, is my math correct. For superchunks; One 2x4 sheet should make 32" high, right?
I did use same method in one corner, but I didn't pay any attention to how much I was using. I'm looking at control room now and want to order th whole lot together.
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Living Culture
Contributore Level V
Joined: 14 Oct 2007
Posts: 189
Location: Taipei
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| Posted: Fri Jan 07, 2011 10:38 am Post subject: |
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| asnively wrote: | | Kenny-- which TalkerTees shirt do you want to be available in another color? Sometimes it's just as easy as me turning that option on. For others, I just have to hop into Photoshop and make a tweak or two first. |
Sorry..I didn't get a notification that there were more posts!
Amy; I like the "room with a VU" T-shirt. But wonder if its worth the shipping to Taiwan for a single item.
Mike; What you were saying about how the walls are joined making a difference is interseting. Mine are mostly connected with small metal L brackets, so could be too loose!
If I added wooden strips on the plywood, could that help with the resonance? I'm reluctant to add a complete layer of drywall as I'm not sure how much more weight the floor will hold. My downstairs neighbor irritates me, but I don't want to drop a vocal booth on him (yet!)
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Mike Sommer
A Hundred Dozen
Joined: 05 May 2008
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| Posted: Fri Jan 07, 2011 10:40 am Post subject: |
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If you cut the material the way I illustrated, one 2'x4'x2" panel should yield eight triangles. [ 8x2"=16" ]
So, to build a superchunk that fills a corner 8-feet high, you need six panels. The same number of panels that's required to make a 6-inch thick standing bass trap. Which is why I say just build the superchunk.
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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. |
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asnively
Triple G
Joined: 17 Jun 2006
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| Posted: Fri Jan 07, 2011 10:56 am Post subject: |
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(I went to go see what the shipping would be to Taiwan and serendipitously found an option I'd never noticed before that allows me to change the prices of everything in the store at once! So, I just put everything at TalkerTees.com on sale! Woo hoo! Maybe that'll make up for the crazy shipping cost.)
I'm buying the yellow stuff for my superchunks today. Thanks for letting me eavesdrop, gentlemen!
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Mike Sommer
A Hundred Dozen
Joined: 05 May 2008
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Location: Boss Angeles
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| Posted: Fri Jan 07, 2011 11:21 am Post subject: |
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| Living Culture wrote: |
Mike; What you were saying about how the walls are joined making a difference is interseting. Mine are mostly connected with small metal L brackets, so could be too loose! |
We like walls that float. But you're beyond that point now
| Quote: | | If I added wooden strips on the plywood, could that help with the resonance? |
No.
| Quote: | | I'm reluctant to add a complete layer of drywall as I'm not sure how much more weight the floor will hold. |
"?" A sheet of 4x8x 5/8 drywall weights 73.6 pounds. If your floor can not handle that kind of load, you've got bigger problems.
If your living in a building that is built with modern construction, your floor should easily handle 500 pounds per square foot or more. You're not anywhere close to that. Let's look at it this way: a 5 gallon jug of water weighs 40-pounds.
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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. |
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asnively
Triple G
Joined: 17 Jun 2006
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| Posted: Fri Jan 07, 2011 12:03 pm Post subject: |
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(Is there anything this man doesn't know?)
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Bailey
4 Large
Joined: 04 Jun 2005
Posts: 4336
Location: Lake San Marcos... north of Connie, northwest of the Best.
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| Posted: Sat Jan 08, 2011 8:21 pm Post subject: |
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| asnively wrote: | | (Is there anything this man doesn't know?) |
He doesn't know if that trampoline will ever break.
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"Bailey"
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Living Culture
Contributore Level V
Joined: 14 Oct 2007
Posts: 189
Location: Taipei
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| Posted: Tue Jan 11, 2011 9:35 am Post subject: |
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| asnively wrote: | (I went to go see what the shipping would be to Taiwan and serendipitously found an option I'd never noticed before that allows me to change the prices of everything in the store at once! So, I just put everything at TalkerTees.com on sale! Woo hoo! Maybe that'll make up for the crazy shipping cost.)
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Cool! I didn't take note of the original prices...but looks well priced. I tried ordering but only white option in checkout (pre-selected)
| Quote: | | We like walls that float. But you're beyond that point now |
Sure. I would have done that if I needed more isolation, but didn't think it would affect the acoustic properties of the room itself.
| Quote: | A sheet of 4x8x 5/8 drywall weights 73.6 pounds. If your floor can not handle that kind of load, you've got bigger problems.
If your living in a building that is built with modern construction, your floor should easily handle 500 pounds per square foot or more. You're not anywhere close to that. Let's look at it this way: a 5 gallon jug of water weighs 40-pounds. |
I'm probably just being paranoid (too many hollywood movies with fight scenes smashing through floors). I have no idea about construction, but worried because all the weight is on a concentrated area (the four walls).
I want to finish the clouds and corner trap soon. Just planning control room first, so I can order materials together.
Would there be a difference between putting in a 4" inch cloud as opposed to just adding 4" to the existing ceiling. I didn't want to tear it apart, but may be easier to dismantle ceiling partially than to try get cloud and lights to play nice.
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Mike Sommer
A Hundred Dozen
Joined: 05 May 2008
Posts: 1222
Location: Boss Angeles
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| Posted: Wed Jan 12, 2011 6:09 pm Post subject: |
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Adding thickness to the material that is already there should be fine.
Normally a cloud is (4-inches thick) suspended from the ceiling (4-inches or more).
Adding the corner traps should make a big change in the way the room sounds.
I hope this answers your questions.
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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. |
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