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In this project we will reverse engineer a mystical part of the saxophone: the mouthpiece. Focused on optimizing the acoustic properties, this includes making CT-scans, parametric modeling and high-grade metal printing. You will autonomously contact several experts and well known (jazz)musicians. Experience with reed or woodwind instruments is preferred! (Expert: Zjenja Doubrovski)

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De meningen ge-uit door medewerkers en studenten van de TU Delft en de commentaren die zijn gegeven reflecteren niet perse de mening(en) van de TU Delft. De TU Delft is dan ook niet verantwoordelijk voor de inhoud van hetgeen op de TU Delft weblogs zichtbaar is. Wel vindt de TU Delft het belangrijk - en ook waarde toevoegend - dat medewerkers en studenten op deze, door de TU Delft gefaciliteerde, omgeving hun mening kunnen geven.

Samenvatting van “Behavior of reed woodwind instruments around the oscillation threshold”

With the two variables of pressure and flow as basis variables, and the assumption this is about a harmonic oscillating system, a series of Fourier calculations and transformations is applied to express the certain frequencies of the reed woodwind instrument. It can be seen that the frequency of oscillation depends on the amplitude of the oscillation, which is a standard property of non-linear systems. The impedance of a saxophone is seen in figure 1, it is clear that the impedance is absolutely dependent on the frequency. By means of an inverse Fourier transformation the impulse response is shown.

According to Worman, a relationship exists between the amplitude of higher harmonics and that of the first harmonic. Although Wormans rule is only proved for a truncated harmonic series, it leads in this study also to coherent results for infinite harmonic series.  

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