I’ve had hearing tests since I was 4. The state made me get tested every year. It’s pretty boring and much faster now days. You go into a sound proof booth and they repeat similar words at different frequencies and different tones, you wear headphones so they can control which ear the sound is in. In all I think it takes under an hour now. But if it’s your first time it might take a little longer. After they’re done with the earphones they put vibration device just behind your ear to test bone conduction. That feels weird. But it’s not invasive at all.