Hello,
I am about to make some work on the acoustics of my control room.
I was wondering about the differences in performance between membrane basstraps and conventional porous absorbers bass traps. other than the fact that the porous absorber is wide-band by design
and that the membranes take less space, I know very little of the advantages of each and which is adequate in specific cases.
maybe some have nice links to some technical info and numbers?
my studio has a high ceiling (4.5m), with very few bass damping material for now (concrete all over the place).
one last question: is it ok to hang a membrane absorber a few inches from the wall?
I guess that both the surfaces act as membranes in that case and should be of different thickness to provide larger bandwith absorption.
thanks
maxime