This is a specific question that might not be pertinent to many other users.
The walls of my recording/mixing room are brick & concrete, so the reflections are a bit of a nightmare at present. I'm building floor-to-ceiling stackable "superchunk"s (with fluffy fiberglass inside/ 4" rigid fiberglass-FRK on the face) for all four corners, besides other broadband panels with OC703.
Don't ask how but I've got around 40+ of these "softboard" tiles in my garage - they're incredibly heavy, they're tackable with thumb tacks, and they're just lying around. This is what they're made of: 18 mm thick particle board, whose 2 faces are pasted with 5 mm EVA (ethylene vinyl acetate) foam and then upholstered with fabric (total thickness 28 mm or just over an inch). This is the stuff of modular office furniture
. I did a little research and it turns out that 'EVA' has somewhat useful absorption properties - I'm not entirely sure about the properties of particle board, especially when all its faces are covered with EVA.
I had an idea to paste these "softboard" tiles on the two intersecting faces of each corner - like in the photos here:
but all the way from from floor to ceiling - I figured that for whatever it was worth, the corners might at least not reflect as well as the bare concrete-plaster corners presently do.
So.. will this be useful, in combination with my planned "superchunk"s which I will be stacking into the same corners? Or even if it doesn't, it can't possibly hurt, can it??
I am aware that this isn't a greatly educational question
. I'm just trying to figure out if these tiles, that are otherwise going to just lie in my garage taking up space can be useful in any way to my room treatment.