I've been trying Taurine for the past month. I happily report to you all that, for me, Taurine does appear to take some of the edge off tinnitus. In particular, the ear pressure sensation, the high frequency annoyance, and the good/bad days ratio.
I've tried many, many supplements, and so far it's the only supplement that appears to do anything positive. I was hesitant at first. I went through some of the threads regarding it here, and the results seem mixed. Some get better, some get worse, and some nothing. I'm convinced Taurine works to some degree for me. It doesn't totally alleviate it, but it does make it a little more tolerable.
Maybe for those of you who haven't tried it yet, give it a shot. I'm not particular to any brand, but FYI - I've been taking Bulk Supplements brand Taurine 1/2 teaspoon, 2-3 times daily. Maybe that's too much. I'll probably back off a little bit.