Herb, Did you correct for expansion of the horn itself at higher temperatures?
Bob Dickow ----- Original Message ----- From: "Herbert Foster" <[EMAIL PROTECTED]> To: "The Horn List" <[EMAIL PROTECTED]> Sent: Saturday, November 15, 2003 9:28 AM Subject: RE:[Hornlist] tuning > I had to pull the slide out because of the laws of physics, not my emouchure. > Increasing the temperature from 40 deg F to 100 deg F (4 deg C to 33 deg C) > increases the speed of sound by 5%. On a 9 foot horn (Bb horn) that's 6 inches, > or a slide pull of 3 inches (7.5 cm). Another 1 inch (2.5 cm) is required on > the F tuning slide. I don't know about your 8D, but mine couldn't handle that. > And outside temperatures vary by more than that. If you only have to move the > slide 1 cm, you are also correcting with your hand and embouchure. > > The speed of sound varies as the square root of the absolute temperature. To > get the absolute temperature, add 273 to degrees C or add 460 to degrees F. _______________________________________________ post: [EMAIL PROTECTED] set your options at http://music.memphis.edu/mailman/options/horn/archive%40jab.org
