[ricccardo]

I might be late to this, but I was wondering, do you use a special audio player for this?

I've dabble with these kind of audio tracks in the past (although without the bone conduction headphones) and a major issue was that i couldn't listen to anything else on the phone without stopping the tinnitus track. Not because it's on the same audio player, but because Android has some sort of system-wide control about which app gets to have audio "focus" at any moment.