I like the idea of masking the sound at night w/ ambient noise - I already sleep bad-ear-down, but I wonder how a ’white noise’ machine would go over with my wife... might be worth trying.
I’ve seen on other sites that some divers have reported the effect of reduced or eliminated ringing while at depth, although one person reported that it came back like mad as a pre-cursor to getting narc’d. So maybe there’s an upside to this. :-)