It's a pleasure and very refreshing seeing a contributor submit decay and ETC measurements, likely two of the most important metrics to determine how "good" a room will sound. Outstanding.
Behind this fabric I want to put the necessary absorbers/diffusers. I don't have an exact plan for this treatment. I'll have to measure and place them iteretatively. This means I place them where they are needed. E.g. this is mostly in height of the ear. There must be left some reflective surfaces, because I don't want to overdamp the room. It shall sound "alive" and "open". RT60 shall not be too low, especially in the highs. Unfurnately many home theaters are overdamped in the highs.
This ^ ^ ^ ... again, spot on.
So important to approach a room's needs via measurement. In these "bass race" times in which we live
(I've got 16kw+
), it's so nice and refreshing to see this approach. I've recommended this approach, but it often falls on deaf ears. Everyone wants a rule of thumb, "just tell me what to do" ... etc. There are a few safe bets
as far as the low hanging fruit
of acoustical treatment. But measurements should guide one's approach to placing treatment, just as you've done.
You're right, some HTs are MF/HF over-damped. But it seems most rooms do need more bass damping/trapping (most are really upper bass traps anyway), and if a room becomes over-damped, it can be brought back with facing/covering of treatment.
Great build. Love everything you've done (maybe I would gone with a cloud), also very cool device you made with the moveable sidewall absorption at the door, nice. I like Rockwool too.
What a screen! My Kung Fu is weak, on the video side ... but my vision is fine
, .. and so is that screen!
Most importantly, congratulations and continued good luck. always great reading your contributions.