- #1
AznBoi
- 471
- 0
Okay, we need to build an instrument that we can play a song with. The audience needs to recognize the song in order for us to get full points. You can't use any instrument parts and the instrument must be constructed from scratch. I was thinking about making a tubed instrument like this:
Does anyone know what this type of instrument is called?
Now, in order to make this instrument I need to perform some length and mabye some tube diameter calculations right? My teacher gave us all of the note frequencies and we also calculated the speed of sound in the classroom.
Am I suppose to use the equation: [tex] v=f\lambda[/tex] to calculate the wave lengths? I know the length formula for tubes with one end closed: [tex] l = \frac{1}{4}\lambda[/tex] -- for the 1st harmonic
The thing is I don't know what formulas I need to use to compute the length of the tubes. Do you divide the speed of sound (343m/s) by the note frequencies and then multiply the resulting wavelength in this equation: [tex]l = \frac{2n-1}{4}\lambda[/tex]?? How do you know what nth term to use? For example, for the note C, it has a frequency of 512 Hz. So can someone please show me an example of how I can calculate the length of a tube with one end closed that will produce that note?? Do I need to take the tube's diameter or anything into mind? I just don't get how fundamental/nth harmonics are related to notes and which ones goes with which. Thanks!
Does anyone know what this type of instrument is called?
Now, in order to make this instrument I need to perform some length and mabye some tube diameter calculations right? My teacher gave us all of the note frequencies and we also calculated the speed of sound in the classroom.
Am I suppose to use the equation: [tex] v=f\lambda[/tex] to calculate the wave lengths? I know the length formula for tubes with one end closed: [tex] l = \frac{1}{4}\lambda[/tex] -- for the 1st harmonic
The thing is I don't know what formulas I need to use to compute the length of the tubes. Do you divide the speed of sound (343m/s) by the note frequencies and then multiply the resulting wavelength in this equation: [tex]l = \frac{2n-1}{4}\lambda[/tex]?? How do you know what nth term to use? For example, for the note C, it has a frequency of 512 Hz. So can someone please show me an example of how I can calculate the length of a tube with one end closed that will produce that note?? Do I need to take the tube's diameter or anything into mind? I just don't get how fundamental/nth harmonics are related to notes and which ones goes with which. Thanks!