Room treatments


Hi

i was watching YouTube vids on "the quietest room on earth" and am wondering how I might get close without screwing up the aesthetics/functionality of my room. I made skyline diffusers (24"x24") and they definitely help. I’m going to make a giant one (48"x96") and bass traps next. Anyone have more suggestions? More diffusers? Foam panels? See my profile pic for what I currently have if you want. Suggestions are appreciated!
128x128masterplan
read the Master Handbook of Acoustics

and BTW, you don't want the quietest room...
Thanks for the heads up on both. I know I can't get my room super quiet but I'm going for as quiet as possible Ima 117 year old highwater craftsman home with 10ft coved ceilings that is really noisy. I'd like to try to get it as quiet as I can and work backwards. So, I'll check out that book and see what's up.  Thanks
Just echoe-y. I guess I'm just trying to get the most out of what I have. I can look past traffic and other outside noises but as my system is pretty exceptional (to me) I'm moving toward maximizing the room.