Speaking of 'audio' classroom tricks, I have recently heard about one that I don't think I have caught my students doing yet, but it is intriguing: Students have been reported to keep their texting devices and cell phones on in class situations and hear them ring without the instructor's knowledge. According to the reports, they use custom ring tones that sound at frequencies higher than those perceivable by the teachers. This is because high frequency sensitivity falls off with age, so the young people can hear the high pitch squeeking of a cell phone but the teachers/professors cannot. I'm a little incredulous, because I wonder if these little devices can reproduce such high frequencies in their ring tones. Has anybody been able to confirm this?
Bob Dickow Lionel Hampton School of Music University of Idaho -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Haflich Sent: Sunday, February 13, 2011 2:46 AM To: The Horn List Subject: Re: [Hornlist] Musicianship ...<snip>... In other words, 50Hz is a little more than 1/3 of a semitone sharp from A440. That's nowhere near close enough to sound in tune if the notes were played simultaneously, but it is quite close enough to be identified as the "same" note as the piano A. The classroom trick might not have been a demonstration of perfect pitch and fine tuning (which many victims of perfect pitch indeed seem to have). <snip>... _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/archive%40jab.org
