[jontutcher]

A similar fun trick was used by Aphex Twin (and others) to make a weird face appear in the audio spectrogram of one of his tracks: https://news.ycombinator.com/item?id=8509105

[TheOtherHobbes]

MetaSynth has been around since the late 90s and combines time (samples) and frequency (image) transforms of audio with Photoshop-style filters of the images.

https://uisoftware.com/metasynth/

[sim7c00]

love this, venetian snares too. thanks for confirming haha, i wasnt sure how they did it! cool memories =) thx! didnt know which one it was from aphex twin. these guys are magicians :D