PHYSICAL PARAMETERS OF AN OSCILLATOR CHANGED BY ACTIVE CONTROL APPLICATION TO A XYLOPHONE BAR
Henri Boutin, Charles Besnainou, Ijlrda Lam Team · 2008
By applying active control to an oscillator, its modal behaviour changes. This paper makes a comparison between a second order damped harmonic oscillator and a xylophone bar’s mode. Then it proposes a method for acting on an eigen resonance of a xylophone bar. The purpose is to get sound modifications, by bringing under quantitative and independent control its pitch and its duration. Thus it extends our previous work [1], by using a digital feedback controller. 1.