On Sun, 25 Jan 2009 00:43:22 -0500, you wrote: >Hi Dave, > > > And for those of us that are "tone deaf" or at least deficient > the ability to change the pitch helps a lot. Two signals that are the same > to me at 800 HZ just seem to move apart as the pitch is lowered. To look > at it another way the absolute difference between the two signals has not > changed but between 800 and 400 hz tones the percent change has doubled > and, at least to me, is very audible. > > >73, >Bob >K2TK > > >David Robertson wrote: >KEITH and fellow Elecrafters. It has been long known that certain individules >have an inablity of decerning a difference in a pitch of tones that are >somewhat close to the same frequincy. This is comminally refered to as tone >deafness.Thats why CWT is real handy. There are many good CW operators that >are tone deaf. They can hear the tones but if the tones are very close in >frequency they cant tell one from the other other then sending speed and >style. An interesting fact. in a room with 150 people being tested for SONAR >which several pair of tones were played. Some tone pairs were the same >frequency, other tone pairs were offset from each other. You had to mark >weather the tones were same, second tone high, or second tone low. You had to >get %85 right or you failed. When the test was completed there was only 10 of >us that passed. For us that are not aflicted with this minor disablity using >your brain as a filter for the pitch you want can make for good cw copy. For >peopl e that >are tone deaf, get you contacts using the CWT and good filtering. So Keith >you are not alone but don't let that keep you from CW 73 DAVE KD1NA > >
What am I missing here? Does tone-deafness cause an inability to detect the "warble" one hears when tuning with the spot button pressed? I have begun using the CWT most of the time now. Not because I can't tune accurately with the spot tone, but because it is faster. Tom, N5GE http://www.n5ge.com http://www.swotrc.net _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
