Question: Just wondering if it is common for the sound of your Tinnitus to change when you start doing retraining therapy exercises. I've started this week listening to certain sounds (classical music, white noise) at a level just below my tinnitus ringing every night, reading before I go to bed. As well as using a sound machine sleeping... same thing as well, putting it at a level below my tinnitus ringing. After 3-4 days, I've noticed the high pitch ring has changed somewhat to a high hissing noise. Is this normal?

Answer: I have heard of this happening, and in some cases it means that the sound enrichment you are doing is affecting how your brain is processing the tinnitus signal. I would not worry about it. Keep it up and report back on how you are doing.