LOUD, flashing images 

Since we can’t directly upload audio files on Mastodon, I’ve been looking for simple visualizations.

Turns out ffmpeg has a bunch of filters to do exactly that! When I found out about 'avectorscope' I had to try it on the Mushroom music by Jerobeam Fenderson.

Original video (on a real oscilloscope!):

Sound source:

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