Hi friends
i worked a litle in the CR abd did some pre meassurements without desk or racks inside the room to find the frequencys for the tuned pannel basstraps at the lower back and the lower side of the room.
i found out, that my RT 60 is to short between 150hz and 1,5khz
under 100Hz i have RT60= 0,25s 150 to 1,5khz i have between 0,18s and 0,12s what is to short for my ears.
above 1,5khz i have constant 0,2s waht is ok.
Do you know a material to cover my corner basstraps at the celling which allows waves uner 150hz to pass, and reflect above these frequency?
i play with the idea to cover the basstraps with 9,5mm drywall, since it`s cheap a nd easy to install. I´M not shure if it`s to much mass for this purpose!?!?!?!?!?!?!
here are some graphs from the empty room meassurments an the basstraps i want to cover:
any comments about my ideas and results?
cheers
constantin