As i understood it, TRT is the technic or therapy created by Pawel Jastreboff that uses sound therapy to train your brain to lower the volume of tinnitus.It's goal is to help a person habituate, by not focusing in the tinnitus.
It's praticed by audiologists that tune "in ear sound generators" similar to hearing aids that play a sound inside your ear canal.
Some hearing aids also have the feature to play other sounds to mask tinnitus, like white noise, pink noise, and so on.
To me, i don't like it, because i think is dangerous to have a sound played inside your ear for 12 hours straight. Besides, i dislike white or pink noise.
What i do is to play sounds through a sound machine or pc when i'm working or at my home, sounds like crickets, waterfall or a theme that comes in my Oasis Sound machine (Hawaiian Dream).
I prefer sound machines, i never used in ear sound generators. Sound machines are much cheaper and they do the same. Also, some people that use TRT had worsen their tinnitus, although it happens rarely.
For me, TRT is just masking tinnitus, and takes the credit for the normal proccess of habituation (getting to a better place).
In my opinion, TRT helps as much as any sound machine or air purifieronly masking tinnitus, helping us cope till we gradually get ourselves in a better place (by habituation, remission or acceptence).
TRT doesn't cure tinnitus, just help us cope as any other sound generator we use.
Audiologists makes us pay a fortune like 3.000 dolars for each in ear masking device, when by 50 dolars you buy a excelent sound machine from Oasis.
If you have earing loss, like me, use your hearing aids and play a sound machine, thats enough to mask my tinnitus.
Always play the sound machine in a lower volume than your tinnitus.
These are my thoughts