Detailed measurements on lingual organ pipes for developing innovative methods and software for the pipe design
Judit M. Angster, Péter Rucz, András Miklós · The Journal of the Acoustical Society of America · 2016
Within the framework of a European research project exciting new results have been achieved recently in the research of lingual organ pipes. The main objectives of the project are to solve practical problems of the dimensioning of reed organ pipes, to develop innovative methods and software for helping the sound design work of organ builder enterprises. A better understanding of the role of the shallot and resonator on the attack and the timbre of reed pipes is necessary for this reason. Visualization of reed motion by high speed camera and measurements of reed velocity, wind pressure in the boot and shallot, and sound pressure in the shallot and at the end of the resonator have revealed interesting details about the very complex process of sound generation of lingual organ pipes. These experiments have been carried out in close cooperation with the participating organ builder firms. As examples, a few results of the measurements of Crumhorn and Vox Humana pipes are presented. These results, combined with computer simulations of resonators, can be used for optimizing shallots and resonators. Moreover, the extended knowledge of sound generation can serve as a physical model of sound synthesis.