Acoustics of baroque, classical and modern flutes

modern flute
C foot

G#6

Music Acoustics UNSW

modern B modern C classical C classical D classical flared baroque B3
C4 C#4 D4 D#4 E4 F4 F#4 G4 G#4 A4 A#4 B4
C5 C#5 D5 D#5 E5 F5 F#5 G5 G#5 A5 A#5 B5
C6 C#6 D6 D#6 E6 F6 F#6 G6 G#6 A6 A#6 B6
C7 C#7 D7 D#7 E7 F7 F#7 multiphonics

Impedance

Fingering
a key depressed
a key not depressed
a part of the mechanism that is not normally touched
Details in fingering legend.

Acoustic schematic
a closed tone hole
an open tone hole

Non-specialist introduction to acoustic impedance
Non-specialist introduction to flute acoustics


Impedance spectrum of a modern flute with a C foot measured at the embouchure hole using fingering for G#6. Z is plotted in dB, i.e. 20 log(Z/Pa.s.m-3).

This fingering is comparable to that for G#4 except for the use of the thumb key and first finger keys as register holes. Comparing this with the G#4 impedance spectrum, we see that the fourth minimum is little changed. The third is shallower and unplayable. The first minimum plays C#5 and the second ~C/6. Combinations of these three notes may be played simultaneously as multiphonics.


The Virtual Boehm Flute may suggest other fingerings for this note.
Fingering legend
How were these results obtained?
Acoustic measurements are available for these flutes -
modern B, modern C, classical C, classical D, classical flared, baroque
Sound clips are available for modern B, classical flared and baroque
To compare flutes, it is easiest to open a separate browser window for each instrument.

Copyright © Academic Press. JSV+ Joe Wolfe, John Smith, John Tann and Neville H. Fletcher, Acoustics of baroque, classical and modern flutes
Revised to include the baroque flute 2001.