Friday, January 15, 2010

How's Your Hearing?

















The teen repellent will no longer foil you, but you can still hear some pretty high tones.

The highest pitched ultrasonic mosquito ringtone that I can hear is 16.7kHz

Find out which ultrasonic ringtones you can hear!

A couple weeks ago, as was told secondhand, our pastor played a series of different ringtones over the speakers to illustrate how hearing declines with age-- only the younger folks were able to hear the higher-pitched tones. I wasn't at the service that day, but heard all about it at lunch afterward. I was curious to know how much I would've been able to hear, considering I have pretty sharp hearing. Would my hearing fall into the normal range of other thirty-somethings? Would I have been able to join the ranks of the teenagers hearing the highest frequency tones?

As it turns out, these tones are available at this website: http://www.ultrasonic-ringtones.com/

I tried playing the tones in order, and stopped at 16.7 kHz. Apparently, according to the "quiz" result, that puts my hearing on par with that of an average 20-year-old. Not bad, considering I'm a dozen years older than that ;-) And despite his poor hearing and despite the fact that he's pushing 40, Allan could still hear tones "reserved" for thirty-somethings ;-) That ought to make him feel young.

What's interesting to note is that although I couldn't actually hear any tones beyond 16.7 kHz, at the higher frequencies (except for the very last one) I could still detect a change in the air indicating that something was vibrating, I just couldn't hear the actual sound itself. That was fascinating to me.

I've always maintained that I have extra-sensitive hearing to make up for my very poor eyesight. I don't know what my eyesight is in terms of the 20/20 scale (those numbers have always been meaningless to me) but I can tell you my eyeglass prescription: exactly -5 in one eye, and -4.75 in the other, plus a touch of astigmatism. Allan is the opposite-- I can discern almost no difference in blurriness when I try on his near-paper-thin glasses. By the time farsightedness hits him sometime this decade, he probably won't even NEED glasses anymore.

So, my hope is that Todd will get a good mix-- hearing like his Mommy, and eyesight like his Daddy. Or at the very least-- an even mix of both, yielding average nearsightedness and average hearing. I'd be happy with that :-)

How about you? How's your hearing?

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