Experimental validation of adjusting the resonances of a simplified bass clarinet through modal active control.

Meurisse, T.; Mamou-Mani, A.; Benacchio, S.; Finel, V.; Chomette, B.; Caussé, R. and Sharp, D. (2014). Experimental validation of adjusting the resonances of a simplified bass clarinet through modal active control. In: International Symposium on Musical Acoustics (ISMA 2014), 7-12 Jul 2014, Le Mans, France, pp. 365–370.

URL: http://www.conforg.fr/isma2014/cdrom/data/articles...

Abstract

This paper reports the experimental results of modifying the resonances of wind instruments using modal active control. Resonances of a simplified bass clarinet (a cylindrical tube coupled to a bass clarinet mouthpiece including a reed) are adjusted either in frequency or in damping in order to modify its playing properties (pitch, strength of the harmonics of the sound, transient behavior). This is achieved using a control system made up of a collocated loudspeaker and microphone linked by an observer, which contains a model of the system, and a controller. Modifications of the transfer function, input impedance and radiated sound of the instrument are obtained.

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