Useful to know

This might be deceiving.
I can hear everything up to 14k in this example but when I stood in an audiologist’s booth There were frequencies around 3-4K that I didn’t hear at all at low volume.
The audiologist brought the volume up at each frequency until it could be heard and then noted that level.
 
Cool test. I got 20Hz to about 13.3KHz. After the sound disappeared, I noticed a very soft phantom sound until the end, sort of like a police siren. Not sure what that is. Anyway, apparently YouTube has some audio compression algorithm that ignores frequencies above 17KHz so noone will hear above that on this test, and probably only 20 year olds and younger will hear above about 14KHz.
 
Mongrel said:
Curious why it is an issue if you have tinnitus?
Click to expand...
I saw it reported in a few associated articles that listening to these kinds of (informal) tests can set off tinnitus in those already with the condition. I have no way of corroborating that, but thought it best to mention it just in case it has some validity.
 
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