How about now? No? What's wrong with you?
Is it possible that I only speak on a frequency you can't hear? No. But it's likely that when you take this fun hearing test, there will be frequencies inaudible to you. And if you're over 25, it's cause you're old. Or cause you listen to a lot of music.
"Here is a list of tones that go from 8Hz all the way up to 22,000Hz. It’s fairly common for people who are over 25 years of age to not be able to hear above 15kHz, so this will help you find out where your high frequency hearing cuts off.
Musicians have a much higher risk of hearing loss that most people do, and many of us don’t really wear proper hearing protection. Even just listening to an ipod for an extended period of time can permanently damage your hearing. We also gradually lose our high-frequency hearing as we age."
It's best to do it with someone else in the room, so you'll have proof that there are sounds being made that only one of you can hear.
Do me a favor, in the comments section put the highest kHz you could hear, and your age. No cheating!