|Acoustics of the saxophone|
Bb soprano saxophone
Notes are the written pitch.
This is the sixth note in the second register. It differs from G4 (the corresponding note in the first register) in that it uses a register hole. This causes a leak in the bore that weakens the first impedance peak, but has little affect on higher peaks – see register hole for an explanation, and compare with G4, whose impedance spectrum is almost identical except for the first peak. Above about 1 kHz, the third peak is weakened and the rest of the curve is irregular: see the discussion in cut-off frequency.
Compare with the impedance spectrum for a tenor sax on written G5: same fingering but sounding one octave lower.
This sound spectrum includes some transient excitation, and so has traces of a subharmonic being excited (compare G4).
Sound spectrum of a Bb soprano saxophone played using fingering for G5.
For more explanation, see Introduction to saxophone acoustics.
You can hear G5 played.