There currently is no easy way to do something like this out of the box, as there is no way for Videosync to directly visualize audio. You can make visuals respond to audio, but that is not the same as creating visual waveforms that are actually representative of audio.
Hi Jean-Paul, thank you very much for your answer !
I hope this is the kind of feature that is planned for a future update
In the meantime, I’ve found things at Shadertoy that might do the trick. Is there a way to use Shadertoy’s stuff with Videosync ? Maybe with the ISF loader ?