So, apparently this isn't anything new, but it's new to me. One of my classes was talking about this annoying sound that they could hear, but adults can't. I was a little hesitant to believe my class, for I didn't feel like being the butt of a practical joke this morning. So when one of the students played the noise on his phone and everybody could hear it but me, I began to think that this may have been a pre-planned routine to mess with me.
As a skeptic, I of course went online to see if I could find any information about this phenomenon. As I typed 'high pitched sound adults can't hear' into Google, I came across a news report from CBS News. The article was written on June 12, 2006 and it includes a sample of the sound. To test whether or not I was being lied to, I decided to turn up my computer speakers and play the sound. Once again, I couldn't hear it; but as soon as I turned it on I got people complaining for the sound to be turned off. The cool thing about it was that they thought it was coming from the kid's phone that previously played it, which meant that even though they could hear it, they couldn't track the source of the sound.
As a math enthusiast (math teacher) I would like to see if there is a cut-off point in age for those that can hear the sound and those that cannot. I also wonder, if I were to have listened to this sound when it was released on June 12, 2006, would I have been able to hear the sound then?
If you do happen to go to this page, you might notice a link to the most outrageous mug shots, if it's not on there then here the link to check that out as well as I found it quite humorous.
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