A Novel Approach to mixed Model discrete-Time Domain Simulation of the sound Field Generated by a String

The scope of this paper is the time domain simulation of the sound field radiated by a string. Different time domain methods have been successfully implemented for string simulations. These methods not only perform realtime string sound synthesis, but also pressure and particle velocity generated around strings can be obtained. It is very useful to analyze the sound field interaction with external physical structures, as the body of a guitar, for example. This paper proposes a combination of two different time-domain methods for a complete description of the generated sound field. These methods are the Functional Transformation Method (FTM) and the Finite-Difference Time Domain (FDTD) method. They have different advantages, and when used in a mixed model scheme, give a wider broadband and more efficient solution of the sound field. Moreover, real-time modification of parameters without stability shortcomings is also feasible.