Is it possible to predict single cane reed mouthpiece interaction by measuring the reed alone?
Résumé
This paper deals with the experimental characterization of single cane reeds. According to some authors, the reed stiffness symmetry of the unmounted reed may explain it's perceived quality. Other studies show that the nonlinear stiffness of a reed mounted on a mouthpiece partially explains it's behavior in playing situations. According to these results, the aim of this work is to study the link between measurements performed on unmounted and mounted reeds.
We adapted two experimental test rigs to characterize 90 reeds with 3 different strengths. The first is dedicated to unmounted reeds. It enables to measure the local stiffness at a known distance from the reed tip by imposing a displacement and measuring the force. The second test rig focuses on the reed mouthpiece interaction. Using a force sensor and a camera, it enables to estimate the nonlinear characteristics between lip force and reed channel area.
Using these numerous measurements, we investigate the relation between the indicators by the use of statistical analysis and machine learning techniques. These methods enable to show several correlations between parameters obtained from unmounted and mounted reed measurements.
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