​
root MIDI
tongue offset (semitones)
stiffness constant K
wall/tongue thickness (in)
test tongue length (in)
slit area (in^2)
cavity volume (in^3)
neck length (in)
Duntong tongue-drum model -- EMPIRICAL ESTIMATES
Quantity
Value
Units
Target pitch (MIDI 60)
261.63
Hz
Predicted tongue length
6.834
in
Frequency at test length
261.63
Hz
Cents error vs target
0.0
cents
Helmholtz cavity estimate
214.23
Hz
Cavity coupled to target (<=20%)?
True
EMPIRICAL ESTIMATES only -- validate against measured prototype data.