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Old 2nd May 2020
Lives for gear

does sound absorbtion have to be directly on the wall?


Typically people glue or otherwise fasten sheets of acoustic foam onto walls to reduce echo.

I was wondering: if you had the foam on mobile panels that were a few inches from the wall, would that still work? I was thinking of using room dividers and putting foam on them:

It seems like you would also get some non-scientific diffusion, because the panels from the room dividers would reflect the non-absorbed sound at angles rather than directly back. Maybe perhaps, they also could serve as a bit of a bass trap by trapping the bass in the airspace between the room dividers and the wall.

But I don't know if you lose a lot of absorbtion efficiency if they are "floating" away from the wall like this. And studio acoustics is a complex topic in general. So I'm wondering what the general concerns might be for this wacky idea.