exciting new studio room for me! help?

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corban

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I have a room I can set up as a studio in a church basement. It’s pretty much a big weird storage room, some areas of the ceiling are lower than others to accommodate an airflow duct. At its largest it’s 26 ½ x 35 1/3 x 7 2/3. The ceiling is some sort of suspended corkboard or something, it’s quite rigid but can be pressed into with your fingernail. I imagine it’s somewhat absorptive. I’m sitting in school right now and the ceiling is the same material. Above that ceiling there’s 16” before things get solid. There’s all sorts of pipes and such up there.

studio.png


As you can see it has some pretty sweet dimensions considering it's a church basement, with the walls angled away from what seems like an ideal mixing spot. At the back of the room, behind that mixing spot is some sort of wooden structure that I’ve realized I could slip fibreglass into and make into a basstrap of sorts. The fibreglass would be facing outwards, and I would hope that this system would benefit from some empty space behind it for eliminating lower frequencies. Behind it is about 4 feet of storage space with a low ceiling.

The problem is there are stacks of shitty old chairs and some doors that need to be stored in there. I could maybe make a stink and get rid of some, but I don’t wanna push my luck as I’m using this for free. I’ve organized most of them into the corner and separated that area with a big bookshelf, and I figured I could also put my computer behind there for noise separation. The other options for computer placement would be in one of the closets I guess. Unfortunately with this bookshelf setup I can’t really take advantage of that sweet mixing spot. Instead I’m forced into the setup I’ve outlined in the picture, with a mixing position that isn’t quite ideal, since the angles of the left wall and right bookshelf would give me some inconsistent reflections and probably mess up my stereo imaging.

I have some portable fibreglass panels for absorption that I could place on the sides to cut down on side reflections skewering my response. Any thoughts on this? Is that a decent mix position or should I work hard to get the better one to work? I could spread those chairs out around the walls of the room where they could act as diffusers, it would just be uglier than it is already, and I will have clients down there.

As it is set up right now I plan on throwing a whole bag of rigid fibreglass into the corner with all the chairs to absorb some bass back there, as well as in the corner by the door in the top right. There’s a fair amount of diffusing type things in the room and very few parallel reflective surfaces but I suspect I could use a little more broadband absorption. I’m not handy at all when it comes to building things so I'm trying to avoid building any wooden traps but I’m open to other suggestions, and appreciate any feedback.
 
:D :D but not as close as China is.

Seriously folks, I spent forever drawing that picture! Feedbacks!
 
Seriously folks, I spent forever drawing that picture! Feedbacks!
Ok, nice drawing corban.:D. Seriously, without knowing what you are recording in there, what your isolation goals are, no idea of what you are allowed to do in there, and your lack of DIY skills....well, what do you want us to tell you?

I CAN tell you this though. The gobo will do little for isolating anything because of its size and lack of other ones to use "ensamble" to create a quasi barrier around instruments and or vocalists. As for the "diffusing" elements in the room...my guess is they'll likely act as specular reflectors...just like a wall. Diffusion is very difficult at best to predict. There isn't even a standard or test for it. Scattering of sound is more like it. Diffusion has to do with equal decay of all frequencies.

As for bass trapping...what did you have in mind to use as the absorption material? And how much? I think your biggest problems are going to be from the concrete walls and tile floor. But thats only a guess.

In reality, I don't even see an "ideal" mixing position. There is NO symetry to the side walls. At this point, I'd suggest doing some recording and PLAYBACK IN ANOTHER SPACE AND SYSTEM. This will tell you whats happening in your room as far as acoustics. This is why...

There is NO way to monitor a live recording over your speakers, as you are recording in the same room as the music is being produced. That means headphone monitoring, which is a terribly unreliable monitoring situation. That means you are literally guessing what its going to sound like at playback.
And if that situation LIES to you while recording, your ROOM may lie to you again while mixing. That only leaves TRANSLATION on other systems/rooms
to give you feedback...and then you have to guess again. That is the point of TREATING a control room ...so it doesn't lie to you. But like I said, we have no idea how to offer help because of the limitations on skills, budgets, landlords, existing conditions etc.
fitZ:)
 
Thanks so much Rick, especially for appreciating my picture. :) I've worked in a few one room studios that do great work, and Ethan here swears by it, but I definitely agree on the importance of getting a reliable sounding room so I'm willing to put money and effort into it. If it means I have to figure out building some traps, so be it.

For bass traps and absorption I use Roxul Safe'n'Sound fibreglass, which is what's available in Canada and has similar specs to 703. I have five 4'x2' cloth bags/panels filled with 2 sheets each that I hang on mic stands so I can move them around easily and create some separation, in conjunction with the gobo. I'm willing to buy as much insulation as I have to. Safe'n'Sound is only 40 bucks for a bag of 8 sheets.

What do you mean about my isolation goals? Sound-proofing is not much of a problem as the concrete walls are quite soundproof and it's quiet in there. I will probably stay away from recording two audio sources at once and just track instruments separately. I will be recording drums. My clients for the new year are a roots/bluegrass band, a somewhat emo-ish acoustic act, and a female folk singer. I also do my own music, indie rock of sorts. examples of an old band of mine and a folk singer I've recorded:
www.myspace.com/edmundband
www.myspace.com/eidsevanessa

I can basically do whatever I want with the room, besides permanent changes like building walls, and the filing cabinets need to be easily accessible. I've since found out that I CAN get rid of the chairs and junk in that corner. But you don't see that middle spot as being ideal because of the side walls being so asymmetrical? I just figured they were far enough away from me to minimize the influence of reflections. The room's 35 feet wide.

And to clarify, you think I should record in there and then listen elsewhere to see what's going on? Not a bad plan.
 
If you were able to build walls, there's quite a good control room with angled walls ready for you. Something a bit like this:
 

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I don't really have anything to add (lack of knowledge), I just wanted to say I'm impressed with the drawing.
 
I don't have anything to add either, but what software did you use to make the drawing?
 
Google's sketchup. Free, and not too hard to learn. I had never used it before or really done any kind of sketching, which is primarily why it took me quite a long time.
 
ok the room is now set up pretty much as shown. I have 5 bags filled with 24x48x3 Roxul Safe/n/Sound semi-rigid, which has similar coefficients to OC 703. I can fit two of those panels in each of those bags, which makes them pretty rigid. I can also fit one panel along with an extra one of those ceiling tiles I mentioned, which is obviously much more rigid. But I don't know anything about the absorption cooefficients of that material.

I've noticed at the back of the room the section with a lower, wooden ceiling (in front of the closets at the top right and top left) resonates a lot, there's some air ducts in there that just hum when I clap. It's not noticeable if I play guitar or piano in my recording spot, but I don't know what'll happen when I get drums in there.

Here's what I'm thinking for each of my bags.
1) Hung horizontally on the wall behind my monitors, to cut down on primary reflections for my mix position, although I could space it a foot out from the wall to help with bass frequencies as well.
2) Hung above my mix position, angled outwards, again for mix position reflections.
3-5) Mounted flush to the wood ceiling that resonates to dampen vibrations OR angled against the adjacent corner to help act as a bass trap as well, which would not dampen vibrations as much because of significantly less contact with the wood

I was also thinking of placing one bag each to the right and left of my mix position, between me and the monitors, to cut down on wall reflections, especially since I have irregular walls and cannot treat them directly because of filing cabinets, etc. I could conceivably construct some wooden gobos to do this though. I am hoping I can construct two similar panels to place in the top right corner and top left corner as bass traps, although I have the space to just throw a bag of insulation in the corner like Ethan suggests.

Then there's that blue and white contraption at the top middle, made with some thin plywood and 2x4s in between. I have 3inch Roxul sheets slid between the plywood and the planks, and then there's about five feet behind it before the actual wall. Can't move it cause of the lowered ceiling. Is this going to operate as a bass trap at all, or is it too far from the wall? Should I face the wood into the room, or the insulation? Similarly I've found another thing like it, just one sheet wide, that I've placed in the bottom right corner as a bass trap. Wood in or wood out?

Many many thanks to anybody who can help give me some advice.
 
the section with a lower, wooden ceiling (in front of the closets at the top right and top left) resonates a lot
Can you throw something above there to damp the resonance?

Hung horizontally on the wall behind my monitors, to cut down on primary reflections for my mix position

The primary reflection are not the wall behind your speakers because the speakers don't face that way.

Hung above my mix position, angled outwards, again for mix position reflections.

The ceiling reflection points are about half-way between your head and each speaker.

Other than it sounds like you're on the right track.

--Ethan
 
thanks a ton, ethan. I did mean between my head and the monitors for the ceiling spot. I've also heard it's a good idea to have something between the head and the monitors on the wall behind the monitors, since some sound is invariably sent backwards from the monitors as well, but I see what you mean, they wouldn't be primary reflections.

My question is: by saying that were you simply correcting my inaccuracy, or do you see that treatment as an unnecessary step? I could certainly use that bag elsewhere if that's not a very important place for it.
 
I've also heard it's a good idea to have something between the head and the monitors on the wall behind the monitors, since some sound is invariably sent backwards from the monitors as well

See this:

Front Wall Absorption

or do you see that treatment as an unnecessary step?

Yes, absorption on the front wall is usually not needed. It's not a bad place! But once the better places are treated, the front wall does not usually need treating.

--Ethan
 
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