<html><div style='background-color:'><DIV></DIV>> Diane, <DIV></DIV>> Could you speak a little louder...what did you say...."the speeding trains can't straighten out in barbed wire meshes?" <DIV></DIV>> Tom Servinsky,RPT <DIV></DIV>> <DIV> </DIV> <DIV>;-)      In my audiology class today the teacher passed around several types of hearing aids and a hearing aid stethescope so we could listen to what the hearing aid puts out without having to have custom made earmolds.  There is a Baldwin Hamilton in the corner of the classroom, so during break I borrowed the hearing aid set-up and listened to the high treble of the piano.  It was interesting how much it did make those top three notes clearer.  </DIV> <DIV> </DIV> <DIV>My audiogram, done with the equipment I am using for my research at conventions,  shows that my hearing is in the normal range to 10,000Hz. and falls to the moderate range of loss by 13,000hz. and into the moderately severe loss at 14,000hz.    So I asked the professor how high in the frequency spectrum the hearing aids are able to amplify sound.  Her answer was that for almost all aids the highest frequencies that they are capable of amplifying are in the 4,000hz. range.  She said that sometimes the earmold on a BTE (behind the ear aid) can be designed in such a way as to bump it almost up to 6,000hz.  She said that aids that go into the ear and even further into the ear canal have a maximum capability of amplifying frequencies up to 4,000hz.</DIV> <DIV> </DIV> <DIV>I would think that 6,000hz.-8,000hz. would be sufficient for tuning, but an RPT at Reno told me that it would have to be "<EM><STRONG>much</STRONG></EM> higher than that", he said that frequencies of 16,000hz. are necessary to hear for tuning?</DIV> <DIV> </DIV> <DIV>Diane</DIV></div><br clear=all><hr>Get your FREE download of MSN Explorer at <a href='http://go.msn.com/bql/hmtag_itl_EN.asp'>http://explorer.msn.com</a><br></html>