Archived posting to the Leica Users Group, 2013/10/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Seems to me you did all the work ;-) > On October 25, 2013 at 11:40 AM Herbert Kanner <kanner at acm.org> wrote: > > My one hearing aid (loss of high-frequency in left ear) started ringing in > response to some high frequencies. It would even ring when it heard a click > from my iPod, not to mention when it heard music. So, in a flash of > inspiration, I went to my piano and ran up the high end of the keyboard. > Found > a few notes which caused it to ring, centered strongly on the F# that is > three > half-steps under the A that is two octaves above A440. > > Did a little arithmetic and came up with 1480 Hz as the frequency. Threw > the > problem at my talented wife (she taught math once) and she came up with the > same number. > > Got the audiologist to suppress the vicinity of that frequency by a few > DB. He > admired my M9, so I took his picture. > > http://gallery.leica-users.org/v/herbk1/L1003456.jpg.html > > Herbert Kanner > kanner at acm.org > 650-326-8204 > > Question authority and the authorities will question you. > > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information