Height of Angled roof

Hello, This is my first post so I hope get this right: - My overall goal is to create a space for myself to produce my music (possibly therefore, just a control room). I am right at the start of this process. - I will be pretty loud (approximately between 85-110dB), neighbors aren't an issue, but I would like to keep most sound in, to be considerate of who I live with. - My budget at this point in time is between $4000 - $10,000 AUS - The image included is my first attempt at sketch up, so please don't laugh :oops: - I am not experienced in any way at building, designing or anything like this, but I really want to have a go at this. - Basically I have a tin shed. It's approx. 7170mm (L) x 5700mm (W) x 2190mm (H). This height is on the edge of the room, this angles up to be 2850mm in the middle. This isn't lined at all yet, so I was just going to line with polystyrene foam sheets or drywall, just to get the walls and ceiling flush. The first issue I have is the height and angle of the roof. If possible, I'd like to have this as one big control room as most of the time it will be just me recording. Also, having just one room would keep the cost down as I'd just have 2 solid doors for entry and not have to spend up on thick glass doors or windows. The ratio's I've seen don't really match up with my dimensions though. Also, from what I've read, it's better to have the roof angling up as you go to the rear of the room (this might not be possible for me). I've also read that it may be better to have the control room longer than wider. So if this last point is the case, the roof would remain the same height from front to rear, but decline in height towards the right and left sides. My 2 questions first up are: - With the roof angled the way it is, is it ok to have the roof declining in height as you move to the sides of the control room or will this cause a lot of problems? - With the height issues I have, is there a way to have this as one room or should I look at making a smaller room? I hope I've filled in all that I need to in order for this to be looked at. Any answer to my questions would be greatly appreciated. Thanks in advance, Cameron Brown.

Hi Cameron, With regard to the ceiling. If you face the control room so it is lowerest in the front angling to the highest point behind your head. That will force the sound waves to your absorbent rear wall. Or if you run the room the other way it will be fine as well. 2 solid doors- Unless your planning on doing a 2 leaf system, 2 doors will do nothing. It's normally one door per frame. 2 door= 2 seperate frames. You've already said you don't have neighbours, so I would just worry about sealing up the one leaf and doing some nice acoustic treatment. Have you been reading audio technology mag lately?

Hey, Thanks for getting back to me so fast. That's great then, I think I'll run it long ways. So in terms of the size of the room then, is there a ratio that will work with the low ceiling? and with the angled roof, should I be working with the ratio from the highest point of the ceiling? oh, and no I haven't been reading audio tech mag.. is there some good info in there? Thanks, Cam.

One of the writers is slowly building a barn studio with hay bails. Interesting one large room design. With the ratios- John made a comment once that he's never worked out a ratio! He just uses as much of the space he can. Bigger the better. Higher the better. Why don't you work the other way- choose the LWH and then punch it into the calculator(you've downloaded the calculator, right) If any nasty Freq stick out change the dimension that leads up to the "foyer type" room. But go the highest you can. The easiest way to do an angled dimension is the mid point. the harder way is choose 3 points and do 3 calculations. Hope that helps