2007-02-12 12:31:45 · 4 answers · asked by julie c 1 in Science & Mathematics ➔ Engineering
It can't be. Trombones are just roughly tuned, usually on Bflat in 1st position. The musician has to "tune" each note by ear when playing a slide trombone.
2007-02-12 12:42:43 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Use a microphone to convert the sound to an electrical signal. Then filter out the harmonics of the signal. You probably won't be able to get enough resolution by just using the time-scale on the o-scope, and will need to use a scope with a built-in frequency measurement capability. The frequency will fluxuate alot just due to the variation on how the player's lips buzz in the mouthpeice, arm motion (assuming it is not a valve trombone), air velocity, ect.
2007-02-12 20:39:48 · answer #2 · answered by Jess 2 · 1⤊ 0⤋
You could but it would be very difficult. You would need a microphone and the difficulty is the tone coming out of the horn is not a pure sine wave, but a combination of many tones (harmonics). You would have to measure the period of the most dominant tone and tune the horn so that it does one cycle in the correct amount of time. An A below middle C is 440 Hz so you would have to tune to a period of 2.2727272 milliseconds which would tough to read off the scope. I wouldn't recommend using this technique by the way.
2007-02-12 20:41:36 · answer #3 · answered by Gene 7 · 0⤊ 0⤋
http://www.mip.berkeley.edu/physics/noteindex.html
somewhere on this page is the answer
2007-02-12 20:35:42 · answer #4 · answered by steven m 7 · 0⤊ 0⤋