Ceiling, 3 layers of drywall, studs?

[Studion]

Yes, I understood the construction. Still claim that 45x45 would work but it feels weak. Go for 45x70 or 45x95, it's easier to build with 45x95. C14 is more than sufficient for the walls. Skip the noggings, they are not needed considering all the boards, rather go up to 45x95 in that case!

Great!

The noggings are intended to make the construction as rigid as possible, so that it doesn't vibrate (and thus transmit sound) when the sound pressure is at its highest in lower frequencies.

Maybe Björn has some thoughts on that. Is it "necessary" with noggings? If so, should you go as Auralex recommends, i.e., in completely different cc intervals, or as others recommend, in cc600? If so, should I also use noggings in the ceiling? No big cost with noggings, but it does take quite some time to put them in place.

 

[Björn Melander]

I agree with vectrex regarding the sizing. It will work just fine. I almost guessed you had looked at the Auralex website when I saw your drawing with noggins and such. However, you should take their measurement data and concept with a grain of salt. Their products can be considered "low-end" when it comes to studios and such. Noggins should be avoided as they prevent the drywall from flexing (the drywall has both a resonance frequency in the low register and a coincidence frequency higher up in frequency).

When professional studios are constructed, almost all materials can be purchased (except where vibration-damping elements are included) from a regular lumber yard. Avoid foam panels, etc., when you later acoustically treat the room.

 

[Studion]

Brilliant, thanks!

I mix freely between different tips, manufacturers' instructions, and various manuals. It will result in a mid-priced-low-end-hi-risk-studio, but I'll probably be satisfied regardless in the end. I'm one of those "idiots" who likes to think that maybe you do it best yourself anyway. For better or worse.