It's not known where they get all the material for these suits, but considering the variety in design, it seems like they're made on the spot, Makes sense, every toomily varies wildly in size and shape, there'd not be a one-size-fits-all. Unless the suits were made via nanomachines that spread over the surface... But that's mere science fiction! Now lets get back to talking about sound that takes over your mind.

Theoretically if you just took off their mask the wearer would be free, altho they might have residual noise ringing in their ears. A dazed state of thinking they're still under. And who knows about the long-term effects...