Active control applied to wind instruments
Résumé
Musicians have always been interested in the evolution of their instruments. This evolution might be done either to adapt an instrument's quality to musicians' and composers' needs, or to enable it to produce new sounds. In this study, we want to control the sound quality and playability of wind instruments, using modal active control. The modal active control makes it possible to modify the input impedance (frequency, gain and damping) of these instruments. A first experiment is presented here. We control the acoustic resonances of a cylinder, which is considered as a simple brass instrument. Using microphones, speakers and a DSP, we modify its input impedance. We then test the effect of the control on the playability via tests with brass players. Our next goal will be to adapt the control to real instruments, a trumpet at first, and to evaluate it in a musical context with a musician.
Domaines
Acoustique [physics.class-ph]
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