How to treat your practice and control rooms
The main inspiration and last push to do the acoustic treatment DIY and not to buy panels and diffusers from thomann was this video (the first hour of it).
Sound isolation
TBD
Reflection absorption and diffusion
Absorption
Treat your listening position with absorption to prevent early/first reflections from walls and ceiling. Basic formula is depth of panel * absorption material + gap of panel to wall. That means YouTubers’ flat foamy panels are useless for absorption of all frequencies.
European acoustic absorption panel recipe
- ROCKWOOL Rockton Super as its the most absorbing non-toxic mineral wool currently available in eu rockwool.com
- any cheap wood plank that is long and wide enough (I used a 2m long and 12 cm wide raw spruce plank)
- angle reinforcement for corners from the inside (i bought this)
- cloth - it should be breathable based on an idea that if breath is able to go through than air waves should be able to too. (i bought this)
Building images:
rockwool and planks
cut planks (1000mm and 654mm length)
assembled and reinforced frame
rockwool in frame
stapled cloth around frame
Mounting on the wall I fabricated angled wood blocks with a saw. The angle is not important, but helpful for easy and tool-less mounting. Mounting mechanism consists of 3 wood blocks. The first two are cut in an angle (see diagram) and the third is just a spacer (lately I started using just a screw). With one part in the wall, second part screwed to the top of the panel and spacer screwed to the bottom of the panel, I can just lift the panel and put it down on its place. It’s durable enough so it doesn’t just fall off when you snag on it, but it’s very easy to take it off without tools or ladder.
Mounting diagram
panels from the side
Mounting on the ceiling
My room has a quite high ceiling, therefore I tried to put the panels as low as possible (settled on a 30cm air gap). And honestly the ceiling panels made the most dramatic difference. I mounted them with threaded eyelet in the wall and in the panel connected by crimped wire on all 4 corners.
Rehersals space
Controll room tbd
Reflection
TDB