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Experimental demonstration of the modification of the resonances of a simplified self-sustained wind instrument through modal active control.

Meurisse, Thibaut; Mamou-Mani, Adrien; Benacchio, Simon; Chomette, Baptiste; Finel, Victor; Sharp, David and Causse, Rene (2015). Experimental demonstration of the modification of the resonances of a simplified self-sustained wind instrument through modal active control. Acta Acustica united with Acustica, 101(3) pp. 581–593.

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Abstract

This paper reports the experimental results of modifying the resonances of wind instruments using modal active control. Resonances of a simplified bass clarinet without holes (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 behaviour). This is achieved using a control setup consisting of a co-located loudspeaker and microphone linked to a computer with data acquisition capabilities. Software on the computer implements an observer (which contains a model of the system) and a controller. Measuring and adjusting the transfer function between the speaker and microphone of the control setup enables modifications of the input impedance and the radiated sound of the instrument.

Item Type: Journal Item
Copyright Holders: 2015 S.Hirzel Verlag/EAA
ISSN: 1861-9959
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM)
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Item ID: 42383
Depositing User: David Sharp
Date Deposited: 26 Mar 2015 10:05
Last Modified: 11 Sep 2017 15:31
URI: http://oro.open.ac.uk/id/eprint/42383
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