Not specific to tinnitus, but there was an item in the recent S'phile (I think) about the Audio CD from Digital Recordings (digital-recordings.com). This is a self-administered hearing test from 20Hz to 20kHz (audiology tests normally stop around 7k). I ordered it and, let me tell you, it is very easy to use, fun to use, and the results are nice information to have. I recommend it. Would like to have another discussion at some point about the implications of our varying hearing for the systems we build.
