Acoustical evaluation of a novel flute head construction


* Presenting author
Day / Time: 22.03.2018, 10:00-10:20
Room: MW 1801
Typ: Regulärer Vortrag
Abstract: Most modern flutes are designed based on the construction proposed by Theobald Boehm in the middle of the 19th century. Since the appearance of Boehm's reformed flute several flautists and flute makers suggested minor improvements to compensate certain imperfections of the instrument. Recently, a new flute head construction was proposed and patented by an expert flute player. The novel flute head family introduces a revised geometry of the tuning plug and uses different materials for the tuning and crown plugs.In this contribution the results of measurements performed on different flute heads are presented. During the measurements sound samples played using one traditional flute head and five novel tuning plugs made of different materials were recorded in a semi-anechoic chamber. Spectral and transient properties of the recordings were evaluated and it was found that by means of the novel construction significantly different and enhanced sound characteristics can be produced by the flute. An acoustical model of the flute is also elaborated and predictions based on this model are compared to the measurement results.