Not sure what being n times smaller than something really means. A tube producing A=440 would have to be halved about 3.5 times ((log 5000 - log 440)/log 2) to make 5000. This tube would be about 1/11 (440/5000) the size of the the A=440 tube. 5000 Hz is approximately the Eb just past the high C on a normal piano, still audible by most. You have to go up to the next octave before age-related hearing loss starts making stuff inaudible. Kids use the ~10000 Hz range for cell phone ringtones in classrooms, as they can hear them but the teachers can't.
John Baumgart ----- Original Message ----- From: "Hans Pizka" <[email protected]> To: "The Horn List" <[email protected]> Sent: Thursday, November 11, 2010 10:47:29 AM Subject: [Hornlist] A=5000 Hello Hans Illich, good calculation, but A-5000 corresponds to a 4-times smaller E-flat 0,44% sharp, if we take A=440 as the base. Based upon A=440: E-flat=311,13 the corresponding fraction of 5000 be 312,50 which is 0,44% sharp. This E-flat near 5000 Hz would be 22Hz sharp and be in the 5th octave = E-flat´´´´´ thus exceeding most peoples hearing capabilities. Or explained musically: two octaves higher than the notated high E-flat, written with 3 ledger lines above staff in concert notation (=sound as written). It might be notated as trebble clef plus "octava 2" above or similar. It would also mean, that A-5000 does not exist, if we go after human naming of pitches. Mei liawa ! Oba bist guad im kalkulian. Liawe griass ############################################################### _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/john.baumgart%40comcast.net _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/archive%40jab.org
