I've moved to a bigger flat where I can finally have a dedicated music room.
I intend to use it for songwriting and creating demos.
Pics attached to this post, please also see the drawings.
Because of this and because of the special shape of the room I don't expect and need this room to have the acoustics of a proper control room.
After moving the desk and speakers around to find the best position it sounds not as bad as it looks.
However, I'd like to treat it a little bit since I can hear a few problems.
Since I'm not the DIY guys and based in Germany I figured I'd go with some basic GIK stuff.
Facing the short wall sounds much better though it is not symmetrical because of the pitch of the roof on the left side of the desk.
Also the window makes a weird shape, I'm especially worried about the part of the roof that faces me near the window.
I figure I'd use some absorbers (242s?)
1. above the listening position
2. left and right wall between listening position and speakers (would I simply use the mirror trick on the left roof side aswell, thus hanging the trap higher?)
3. Bass traps (244s?) into all 4 corners. The ones on the left are not really 90 degree corners, would it be ok to put them there, though?
Tri-traps would work only on the right side corners of the room so I'd probably use just 244s?
4. Monster bass trap on back wall? Or should I put it on that window roof surface in my neck?
This would be to begin with, since I'm on a budget.
Would I need/or prefer to put something on the wall behind the speakers?
Also, I'd like to do something about the window in the long term. Since I want to be able to open it I'm thinking about fitting some wood/styrofoam sheet with absorbers attached to it in there whenever I need.
If buying from an acoustic company, they will surely help you with your placement.
but other than that; besides taking care of first reflection points and corners..
i would "shoot the room" using REW or similar software. Basic acoustic measurement primer v3.0
Find your problem frequencies and get yourself a SPL meter. Play a sine-wave at the problem frequency and walk the room looking for convenient "hot spots" and add treatment there.