Well, I’ve had tinnitis 24x7 since I was 14, but flash forward to the point of it is that YES, my Phonak Lumity Life 312-battery aids mask that persistent sound unless I’m in a completely silent room. And even then, the house will creak, or a car will go by outside, so I feel that wearing these aids helps HUGELY with any kind of annoying tinnitus tone.
I’m lucky in that my tinnitus is pretty much on a single tone; only when the pressure changes (weather-related) do I get some really tuneful BONGING notes. Even the aids don’t compensate for that.