These Matlab (or Octave scripts if you set use_gpu = 0) are proof-of-concept and not in a final stage. There are many old pieces of code, commented code blocks, and hacks, left in the files.
I have included one .wav file to test the Main_PPP_v6.m file. But you need to find your own copy of the Oscillofun song (copyrighted) if you want to render it the same as in the YouTube video below, using Main_PPP_animation_polar_v6.m script. Or any other piece of music or signal for that matter.
Information about this project: https://richardandersson.net/?p=350
Youtube video: https://youtu.be/JW1ZxR71VJI