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What Is This???
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BenWils
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Joined: 08 May 2006
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PostPosted: Fri Jul 23, 2010 1:24 pm    Post subject: What Is This??? Reply with quote

Okay, I thought I knew what OC 703 looked like until today. I looked at a picture online to see if the panels I had in my basement were the stuff and it turns out I have something else.

Here is what I have:





Another angle:





Does anyone know what it is that I have here and will it work as well as OC703? It is in 2x4 sheets that are 1" thick. Any ideas? I wanted to add some to my 4x4 booth after covering with black burlap. Should I just order some OC703?


Thanks!
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Moe Egan
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PostPosted: Fri Jul 23, 2010 2:10 pm    Post subject: Reply with quote

Silly Ben.

Those are obviously very large Rice Crispy treats.

Yum.
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ricevoice
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PostPosted: Fri Jul 23, 2010 2:12 pm    Post subject: Reply with quote

I was thinking more along the lines of Frosted Not-So-Mini Wheats. Gonna need a bigger spoon....
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TQuinn
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PostPosted: Fri Jul 23, 2010 2:15 pm    Post subject: Reply with quote

Graham crackers? But you'll need quite a few marshmallows and reallllly big chocolate bars.
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asnively
Triple G


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PostPosted: Fri Jul 23, 2010 2:26 pm    Post subject: Reply with quote

Wheat Thicks?
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Jacob Ekstroem
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PostPosted: Fri Jul 23, 2010 2:28 pm    Post subject: Reply with quote

I can tell you what they're called in Denmark... but that wouldn't really help you, would it Laugh (sorry, don't know what they call them in your part of the World).

But what you have usually goes in ceilings. They are definitely not an alternative to OC703. They arent' completely useless, but are not suitable for bass-trapping.
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bransom
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PostPosted: Fri Jul 23, 2010 3:16 pm    Post subject: Reply with quote

It looks like the World's Largest Ball of Twine has been sliced into slabs.
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Edo
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PostPosted: Fri Jul 23, 2010 5:20 pm    Post subject: Reply with quote

I recognize these as boards of straw. They're made with some very heavy glue or paint under high pressure. It does not absorb sound the way 703 does, it is however a common thing on the inside of voicebooths in nearly every television studio post production room to date I've spent time doing VO in... Its open yet sturdy structure does dampen reflections quite a bit without making the room sound too dead. I do hate the look of it though, and it is also my experience that you can get some nasty scratches from the stuff. I used to always cover them with cloth or burlap.
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Bailey
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PostPosted: Fri Jul 23, 2010 5:21 pm    Post subject: Reply with quote

Ben... That stuff reminds me of the packing they used in shipping crates when I worked at the DOD. Large aircraft parts, air surfaces, landing gears... stuff like that. Sometimes the material was preformed for more protection during shipping. I don't know if it has applications for sound reduction or absorption, but I also saw it being used to insulate exterior walls from the cold weather.
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Mike Sommer
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PostPosted: Fri Jul 23, 2010 7:27 pm    Post subject: Reply with quote

It's the stuff my little honey puts in my lunch box everyday.

Amazing what one can do with a Hello Kitty cookie cutter.


As Edo stated, it is a sound board material, knocks down refections.
I've seen it used more in colleges and schools. It's pretty durable stuff which is why it's used there more.

Side note: I was at the USC Keck School of Medicine a few months back, and I was surprised to see that the lecture rooms were actually using 703 soft walls. The rooms sounded very nice.
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Last edited by Mike Sommer on Sun Jul 25, 2010 9:14 am; edited 1 time in total
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Triple G


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PostPosted: Fri Jul 23, 2010 7:36 pm    Post subject: Reply with quote

Mike, that is awesome!
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Deirdre
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PostPosted: Fri Jul 23, 2010 9:06 pm    Post subject: Reply with quote

I know OC 703, and that's no OC 703.
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Lee Gordon
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PostPosted: Sat Jul 24, 2010 12:33 am    Post subject: Reply with quote

At the radio station where I used to work, the walls of all the studios and the newsroom were lined with this stuff. It had a name rather than a number, but I can't recall what the engineers who built the studios called it. In the studios it served as an underlayment over which was glued an additional treatment. Below chair rail height it was acoustic carpet, above chair rail height was Sonex foam.
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Jacob Ekstroem
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PostPosted: Sat Jul 24, 2010 4:23 am    Post subject: Reply with quote

Lee Gordon wrote:
At the radio station where I used to work, the walls of all the studios and the newsroom were lined with this stuff. It had a name rather than a number, but I can't recall what the engineers who built the studios called it. In the studios it served as an underlayment over which was glued an additional treatment. Below chair rail height it was acoustic carpet, above chair rail height was Sonex foam.


Did he by any change call them "Troldtek" or something? Thats what they are called in Scandinavia. As I said earlier it's usually something you put up as ceiling acoustic treatment. I guess you could use them on the walls, but only for hi-band absorbtion, they won't do diddly squad in the low bands. Not completely useless, but again, not an alternative to OC703.
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Edo
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PostPosted: Sat Jul 24, 2010 5:51 am    Post subject: Reply with quote

So this morning I made a phone call with an engineer of one of the tv stations in The Netherlands I used to narrate news broadcasts for. The material used is a combination of hemp and vlax fibers, coated and glued together with a type of paint containing gypsum. It helps making the panels fire proof. Underneath a picture of said voice booth at RTL Television. You can clearly see the fiber panels on the inner walls.

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