Cheap Sound Dampening?
Cheap Sound Dampening?
Out of context: Reply #19
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things like foam and carpet will mostly handle just the higher frequencies.
if you want broad spectrum control all the way down to the lows, you need structures of varying depths to absorb waves of varying lengths.
i suggest building large wood frames, from an inch up to a foot in depth, and a few in between. fill the space inside with rigid fiberglass insulation boards, and cover with stretched fabric.