Was going to post this too, I bookmarked it after seeing it on HN and I use it often. Yeah it seems to help me a bit. It seems handy just to identify tinnitus tones, when you have clear tones (I not not everyone with tinnitus does). I’d be interested to hear from anyone who’s had more than moderate success with ACRN.

I already posted another comment, but will mention here for GP that the ‘White Bursts’ noise generator on mynoise.net is where I’ve experience the strongest tinnitus reaction. I can audibly hear the tinnitus drop with every cycle, and after listening to it for a few minutes, my tinnitus is quieter for maybe a half hour, then it comes back later.