Chris Griffith wrote on Wed, 14 January 2009 19:52 |
I'm about to begin framing tomorrow and plan on building a 10x14x19 foot rectangle and figuring out the treatment afterwards. The doors will be placed in the middle back of the room so they won't be in the way of any corner trapping. Stop me if I'm doing anything wrong! |
Adam The Truck Driver wrote on Wed, 04 February 2009 14:54 |
Are square rooms a bad thing? |
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What if the tracking room and the control room are the exact same size and both are square? |
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Should each be acoustically treated the same |
Adam The Truck Driver wrote on Wed, 04 February 2009 17:42 |
The size and shape of the control room and the live room I can eaily make into rectangle floor space shapes if that would be better than square. |
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I would find it considerably easier to use 90 degree corners and parallel walls and utilize acoustic treatments rather than build those odd angled walls. |
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is that spray in foam insulation any good for acoustic isolation of adjacent rooms/spaces, double wall of course with about 4" space between? |
andrebrito wrote on Thu, 05 February 2009 05:05 |
Thomas, when you talk about LF surfacic behaviors what do you mean by that ? modal behavior ? In a shaped room modal behavior in terms of axial modes would actually be lower than in a rectangular room. I think I'm not understating that term. Are you talking about re-emission of sound ? |
Adam The Truck Driver wrote on Thu, 05 February 2009 14:53 |
I tried that room calculator link thing, but couldn't get it to work for me. |
franman wrote on Sat, 07 February 2009 21:36 |
In our experience, all rooms, even multi-sided odd shaped geometry exhibit modal behavior. It just becomes much more complex (difficult) to predict the modal behavior in these odd shaped rooms. We have worked through many projects with odd shaped hard shells and found some methodology that works for us in determining (predicting) modal response. four sides, six sides, eight sides even round rooms have modes. Predicting the axial modes will just become a complicated exercise, thus being another reason (IMO) to leave shaped rooms to the professionals. It's totally possible to build a great sounding control room in a properly designed and treated rectangle. It's much easier to predict and there's nothing wrong with it. IMO this is the way to go for most (if not all) DIY projects unless you are willing to do a little 'imperical' building (build it, try it, tear it down, repeat)... not many have the stomach or dollars for that!! Cheers.... FM |
Chris Griffith wrote on Sat, 28 February 2009 18:00 |
I'll be buying some software to run real tests next week[...] |
Thomas Jouanjean wrote on Thu, 05 February 2009 20:25 |
To make the long story short - within certain conditions (freq is low enough, change of impedance between air and the surface X is high enough, incidence of wave is within certain boundaries) then the energy will literally start sliding on the surface X instead of being transmitted to it. When this happens, virtually no energy is lost while the enregy "slides" on that surface. That blurs a lot of the variables in real life. |