Transfer function measurements of the Bassoon
* Präsentierender Autor
Zusammenfassung:Physical models of the reed wind instruments allow to simulate the evolution of self-sustained oscillations of the reedand the resulting mouthpiece pressure. However, the sound inside the mouthpiece is quite different in timbre from theradiated sound. The goal of this study is to investigate the timbre change of the sound as pressure waves travel from thereed into the room.An approach is shown which bases on the assumption, that the generation of pipe oscillations can be treated independentlyfrom the transfer of sound from the source toward the listener [Hirschberg1996]. If the sound pressure inside the reedmouthpiece is known (e.g. from a measurement or simulation), the sound pressure at a listening position in a room canbe synthesized by means of measured transfer functions. This contribution outlines the method and presents a suitable measurement setup and postprocessing for the case of the bassoon. Initially intended to auralize reed-wind instrument physical model sounds, it appears applicable to obtain audio quality auralizations from mouthpiece pressure measurements. With 3D sets of anechoic source-receiver transferfunctions, this synthesis approach could be efficient to include musical instrument directivity in simulated virtual acoustic scenes.