DROPIC: A tool for the study of string instruments in playing conditionsReport as inadecuate




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* Corresponding author 1 DALEMBERT - Institut Jean Le Rond d-Alembert

Abstract : The study of musical instruments in playing conditions requires a highly controllable and repeatable excitatory mechanism. This mechanism has to be able to reproduce as closely as possible the human gesture in order to be representative of a playing technique. In the paper, we describe the development of a new string plucking device for the concert harp. This system, called DROPIC Doigt RObotisé PInceur de Cordes, is a position-controlled two-degrees of freedom robot with a configurable silicone fingertip. In order to compare the plucking performed by DROPIC and by a harpist, trajectories are captured by a high-speed camera and the soundboard-s vibrations are measured with an accelerometer. A set of features extracted from these data shows that the DROPIC plucking is comparable to the harpist one with a better repeatability. In addition to classical vibration and acoustic sensors, DROPIC can now be used to pluck a string and allows us to measure temporal features as well as spectro-temporal features in a repeatable and controllable playing context, thus creating an alternative to classical frequency-domain measurements of string instruments.





Author: Jean-Loic Le Carrou - Delphine Chadefaux - Marie-Aude Vitrani Sylvère Billout Laurent Quartier

Source: https://hal.archives-ouvertes.fr/



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