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Communication Dans Un Congrès Année : 2008

Physical parameters of the violin bridge changed by active control

Paramètres physiques du chevalet de violon changés par contrôle actif

Résumé

On the input admittance of many violins a typical broad frequency peak, called "bridge hill" appears around 2.5 kHz. The physical parameters of a violin bridge have a significant influence on this feature, and then on the tonal colouration of the produced sound. The effect of the bridge characteristics (mass, stiffness and foot spacing) on the frequency response have been revealed by using bridge models through several studies. Here the parameters of the bridge response are changed, by applying an active control method. Such a correction, very useful in noise reduction, enables to change separately the position and the shape of the bridge hill. It is first tested on a simplified bridge model, then on a real bridge by placing 2 actuators and an accelerometer at strategic positions.
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Dates et versions

hal-02470042 , version 1 (07-02-2020)

Identifiants

  • HAL Id : hal-02470042 , version 1

Citer

Henri Boutin, Charles Besnainou. Physical parameters of the violin bridge changed by active control. Acoustics'08, Jun 2008, Paris, France. ⟨hal-02470042⟩
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