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Max downloaded a frequency app on his phone and we decided to find out who has the best hearing in the office.
For my phone using the app, I could hear it one foot away at 17000 Hz with ease. 6 inches, I could clearly get 17984 Hz. Ambient and setting my phone 6 feet away, I could hear it at 18089 Hz.
I then started to get a prodrome migraine. Ow.
Had to stop just after 21000hz it was giving me a headache and making me feel sick. I do have Hypersensitivity, so I'm very sensitive to sounds. Also I don't know if using earphones is cheating, but we have a dog living next door and I didn't want to upset it.