Hi all, Just a tip that might help somebody. I have a set of aviation headsets that have noise cancelling built into them. Unfortunately these only cancel out noise coming from outside the ear, not inside - if I manage to invent a pair that do that rest assured I shall give them away for a very reasonable price! lol. However when I turn them on the noise cancelling system creates a gentle white noise sound that together with cancelling out the noise from outside seems to really help the Tinnitus go away for a bit. It's not long, maybe a minute or two while I've got them on and then another minute when I take them off the T is reduced in volume. Just provides a bit of temporary relief sometimes though. Hope this helps.