Just based upon my computer monitor speakers on the first test, I can hear some sort of annoying high pitched sound at around 140 but it really kicks in at 120 [16Hz]. The latter test fades off at right about 15 Hz.
I will say this, I have taken many hearing tests that are offered online. Even built a library out of all of the ones I have found. What I have discovered is that the results are inconsistent and can vary as much as Oprah's weight over the years. I always take these internet tests with a grain of salt, as I hope all of you would as well. If you really want to be sure, see a hearing doctor or audiologist.
Tom