When I compare my most recent audiogram to the previous one, I notice that at some frequencies I have actually improved. I’ve heard that this isn’t supposed to happen. Both of my tests involved the use of a sound-proof room. .
I was wondering if this testing difference could be because of something different about me physiologically i.e blood pressure, various meds, room temperature, etc. Or could it be because of equipment differences since the previous tests, or equipment calibration, equipment wear and tear e.g headphones, etc.
Was wondering if there is a gold standard-type of test that really excels in accuracy – one that puts the sound-proof room test to shame.