SYNTHESIS OF GUITAR BY DIGITAL WAVEGUIDES: MODELING THE PLECTRUM IN THE PHYSICAL INTERACTION OF THE PLAYER WITH THE INSTRUMENT

摘要

In this paper, we provide a model of the plectrum, or guitar pick, for use in physically inspired sound synthesis. The model draws from the mechanics of beams. The profile of the plectrum is computed in real time based on its interaction with the string, which depends on the movement impressed by the player and the equilibrium of dynamical forces. A condition for the release of the string is derived, which allows to drive the digital waveguide simulating the string to the proper state at release time. The acoustic results are excellent, as verified in the sound examples provided.