inaudible Ringtones – The security of sound

I came across an interesting article the other day.  It was on a new set of cell phone ringtones that only kids can hear.  Apparently, when you grow older you ears change and you cannot hear sounds in a specific frequency range.  They encoded a mp3 sound in this range and the kids are using it and others as ringtones for the cell phones so that they can hear when they go off in class but the teacher does not.  The technology was created as a teenager repellant and now the teens are using it against us.
Isn’t that funny?  I played the mp3 for my class and some co-workers and the only person who could hear it was Ann, the front receptionist.  Lisa tried it at home and her daughter, Liz, could hear it as well.  Too bad for us adults.


About The Author


Eric Vanderburg

Eric Vanderburg is an author, thought leader, and consultant. He serves as the Vice President of Cybersecurity at TCDI and Vice Chairman of the board at TechMin. He is best known for his insight on cybersecurity, privacy, data protection, and storage. Eric is a continual learner who has earned over 40 technology and security certifications. He has a strong desire to share technology insights with the community. Eric is the author of several books and he frequently writes articles for magazines, journals, and other publications.

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