Yep, you nailed it. All brakes make noise- - - -hard linings make a lot more noise, which is a tradeoff for long lining life. Either go to a softer lining material that makes a lot of dust, wears fast, and doesn't squeal as much, or turn off the hearing aid. Since I quit hearing frequencies in the brake squeal range about 25 years ago it isn't an issue for me. Too many jet engines, race cars, and deer rifles, and not enough hearing protection. Of course, the ringing noise in my ears that I hear 24/7 can be a bit distracting!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!