DSP Formulation of a Finite Difference Method for Room Acoustics Simulation
Lauri Savioja, Matti Karjalainen, Tapio Takala · 1996
The digital waveguide mesh is a finite difference scheme for simulation of wave propagation in acoustic spaces. In this paper we show how this scheme can be formulated in terms of digital signal processing. A transfer function for a node in an N-dimensional mesh is derived. The main emphasis is in three-dimensional systems such as simulation of room acoustics. Wave propagation in the mesh is analyzed by numerical simulations and visualizations. Setting boundary conditions to walls is also studied.