I don't know if this will help anyone.
I have suffered Tinnitus nearly 60 yrs & it gets louder every so many years.
I decided to try different approaches to give me some comfort & respite to this chronic condition ,I am also profound deaf which makes the Tinnitus stand out above any hearing noises, I bought some new over the ear headphones as I still need to keep both hearing aids in, I connected the headphones to a music stack system, I put this in the radio mode but I disconnected the aerial so that the headphones picked up the crackling sound similar to rain pitta patta which was a totally different noise going into my ears, I found this new idea a really welcome relief as I could increase the volume if needed.
I hope this will help some people, give it a try.