Chiff and Fipple Forums

Thanks, Geoffrey. The easiest thing for me to do is modify my bore taper and see what happens. I'll give that a try before I dive back into all the programming necessary to recreate Yang's work.

@paddler, I agree that the volume of the space between embouchure and stopper is typically tuned to about 5kHz in Boehm flutes. It is my understanding that the stopper space provides an increase or decrease in specific harmonics that encourage high note production. I recognize that my initial tuning...

Geoffrey, I agree with your conclusions regarding bore diameter as it affects first and second octave tuning. What originally struck me as interesting about the ChatGPT response was the statement that a longer taper flattens the higher notes. I guess the only way I'll find out is to extend the taper...

@waltsweet, thank you! I was modeling my flute and planning on building my impedance tube test setup specifically with the intent to capture the harmonic artifacts of each note. My goal was to learn the very relationships you describe in your post.

@Tjones, I agree. My Casey Burns 5-key has the most beautiful tone and is well-tuned for the first two octaves and it is mostly in time in the third octave. It is that beautiful tone that I wanted to recreate with my own flute, so I started my adventure by copying Casey's dimensions. That was about ...

I started with equal volumes on each side, using a depth equal to the bore diameter. I experimented for a couple of months with mixed results, and finally decided to try to understand the problem mathematically. The space between the cork and the embouchure hole on a normal flute is a closed tube, t...

Hey Terry, thanks for the reply. I am ignoring stopper position. I am designing a vertical flute. The embouchure hole is located in the center of a transverse head that is joined to the body in a T formation. The width and diameter of the transverse head form a Helmholtz resonator tuned to D7. I'm i...

I've been struggling to correct the tuning of the notes in my flute's third octave for a month or so. I built my a mathematical flute model in MathCad based on all the traditional sources (Nederveen, Lefebvre, et al) and, over time I have amended my model to incorporate guidance from the theses from...