Source Modelling Toolbox

h1. Overview

The Source Modelling Toolbox is a collection of Matlab functions for designing FDTD source excitation signals and source functions. It is associated with the following paper:

*J. Sheaffer, M. van Walstijn, and B. M. Fazenda. "Physical and numerical constraints in source modelling for finite difference simulation of room acoustics." Submitted.*

In the meanwhile, if you find the tools on this page useful, please consider citing our published work:

*J. Sheaffer, M. van Walstijn, and B. M. Fazenda. "A physically-constrained source model for FDTD acoustic simulation." Proc. of the 15th Int. Conference on Digital Audio Effects (DAFx-12). 2012.*

+Complete PCS Model:+

function pcsDesign: design a PCS based on a pulsating sphere mechanical filter, and a MF pulse shaping filter.

+Individual Pulse-Shaping Filters (Excitation Signals):+

function designBH: design a Blackman-Harris pulse.

function designGaussian: design a Gaussian pulse.

function designMaxflat: design a MF lowpass pulse.

function designRicker: design a Ricker wavelet.

function designSineGaussian: design a sine-modulated Gaussian pulse.

+Individual Mechanical Filters:+

function designMechSphere: transfer function for a small pulsating sphere.

+Download Instructions+

Download the toolbox [https://code.soundsoftware.ac.uk/projects/smt/files].

Extract ZIP file to a folder in MATLAB's path.

Use "help" for self-contained documentation.