The Toolbox provides you with a function for plotting your simulated sound
plot_sound_field()) and adding loudspeaker symbols to the figure
draw_loudspeakers()). If you have gnuplot installed, you can use the
gp_save_loudspeakers() to save your data
in a way that it can be used with gnuplot. An example use case can be found at
this plot of a plane wave which includes the Matlab/Octave code to generate
the data and the gnuplot script for plotting it.