Haptic Piano Key based on a Real-Time Multibody Model of the Double Escapement Grand Piano Action

Timmermans, Sébastien;Fisette, Paul;Ceulemans, Anne-Emmanuelle;Dehez, Bruno
(2018) The 5th Joint International Conference on Multibody System Dynamics — Location: Lisboa, Portugal (24.June.2018)

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Abstract
Touch in an acoustic grand piano is a critical sensory information which results from the high dynamics of the piano action. The tactile feedback allows the pianist to finely control his playing. Present-day digital instruments offer the possibility of nuancing the sound thanks to a limited key dynamics which attempt to imitate that of a traditional piano. However, the result is far from reproducing the fineness required by pianists. Our project aims at developing a haptic feedback force piano key for digital keyboards, based on real-time multibody models. We present here the dynamic model of the grand piano action developed previously in our lab that we improve in order to simulate it in a real-time process. Next a first haptic prototype of one key equipped with a linear voice coil actuator is described.
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Timmermans, S., Fisette, P., Ceulemans, A.-E., & Dehez, B. (2018). Haptic Piano Key based on a Real-Time Multibody Model of the Double Escapement Grand Piano Action. The 5th Joint International Conference on Multibody System Dynamics, Lisboa, Portugal. https://hdl.handle.net/2078.5/268955