When I did my hearing test I received many high frequency sounds that I was supposed to confirm by clicking a button. Many of these signals met the same high pitched frequency as my T signal so then I started to think: "how am I supposed to hear a signal when its identical to the static signal I'm always hearing?" If I can't hear that signal because it masks the T 100%, isn't it wrong to classify that as a loss in hearing? You can have perfect hearing and still not hear the specific signal that masks the T. I did one hearing test and it went all right, the ENT said "not perfect but not too bad either" - it was no reason to believe I had severe hearing loss but I wonder if I could have done even better cause of the phenomenon I describe. It lead me to raise some questions on these tests. Are there many different hearing tests out there? What hearing test is defined as the standard? Any medical test names? And who is the best to preform these tests, an ENT spec. or an audiologist?