Acoustics of the saxophone

Bb tenor saxophone

E4

Music Acoustics UNSW

Conventional Fingering

Impedance

Fingering
a key depressed
a key not depressed
a hole covered
a hole uncovered
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 saxophone acoustics

Notes are the written pitch.
Frequencies are the sounding frequency, for Bb saxophone.
Unless otherwise stated, the impedance spectrum is for a Bb saxophone.


Impedance spectrum of a Bb saxophone measured using fingering for E4.

Observe that, unlike the curves for the notes below D#4, the impedance curve has only two strong peaks that are in harmonic ratios (1:3). The sound still has several strong odd harmonics (particularly when played forte, as here) but, apart from the first two, they are not much assisted by resonances of the bore. For this reason, we could say that the throat register begins here: having only two harmonic resonances, fingerings in this register are more easily 'bent' (their pitch is more readily changed) by embouchure and vocal tract effects.

Sound


Sound spectrum of a Bb saxophone played using fingering for E4.
For more explanation, see Introduction to saxophone acoustics

Sound Clip

You can hear E4 played.

Alternative Fingering

Bb saxophone

Impedance

Fingering
a key depressed
a key not depressed
a hole covered
a hole uncovered
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 saxophone acoustics

Notes are the written pitch.
Frequencies are the sounding frequency, for Bb saxophone.
Unless otherwise stated, the impedance spectrum is for a Bb saxophone.


Impedance spectrum of a Bb saxophone measured using alternative fingering for XX.

Sound


Sound spectrum of a Bb saxophone played using alternative fingering for XX.
For more explanation, see Introduction to saxophone acoustics

Sound Clip

You can hear XX played with alternative fingering.
Fingering legend
How were these results obtained?

Contact: Joe Wolfe / J.Wolfe@unsw.edu.au
phone 61-2-9385-4954 (UT +10, +11 Oct-Mar)
© 1997-2007 Music Acoustics UNSW