Can tinnitus mask sounds that one actually hears? According to the audiologist my hearing above 6K disappears. Playing around with pure tone generators shows that with lots of amplification an 8K tone can be faintly detected. Above that there is occasionally a faint hiss. Tinnitus has been a companion as far back as memory stretches. A while back a session dinking around with the parametric equalizer included with GoldWave gave some indications that I was able to pick up music above 6K fairly well. This last weekend some serious exploring was done. The equalizer was set for ten bands. AFAIK this is a low pass equalizer. The top band stretches from 10K to 20K and can be moved so that it can cover the range above 20K to 50K. When that slider was in the 10K to 20K range and was pulled completely down all the highs disappeared. When pushed to the top what I refer to as a brittle high was present. Back to the middle music sounded, well, good. Extensive playing around showed that once the bottom end of the band went above 13K moving the slider made no difference. My conclusion is that tinnitus masks high frequency pure tone signals, but lets those frequencies as music be recognized. Possible? Anybody else found the same thing?