Mine is very loud sometimes and interferes with my hearing loss in one ear..it also changes in pitch from loud ringing to very light silver bells. I am experimenting with controling it by listening for a rhythm or tune and turning it into music or a familiar background noise like waves on the seashore. I do this to fall asleep sometimes. Lots of time it seems to go almost quiet when I meditate or am working in the studio. It is triggered if I am tense and there is loud background noise(trucks, acid rock, loud tv) and I can't hear what the person speaking is saying. Worse if the person is angry. I always had a sort of high pitched bacground sound and as a child and I always thought it was the sound of the empty space between objects. But now at 83 this last yr. it has become worse....due to??? I am wondering if anyone has experimented with bio-feedback? Which is used for Migraines and other things.