This is the only reference I have to it https://imgur.com/7ZoTLX7
It's pretty common to use Audacity as a (very crappy) oscilloscope to capture analog signals via a sound card, is that maybe what you're thinking?
Re:Audacity 2.2.0 Released
by brian-armstrong on Friday November 03, 2017 @07:41PM
(#15623000)
There's some visualizing memory stuff in this bluray drive reversing
https://hackaday.com/2014/10/30/reverse-engineering-a-blu-ra...
Itβs fun loading images into Audacity. The audio effects look surprisingly like they sound.
Re:Audacity 2.2.0 Released
by arthur_pryor on Saturday November 04, 2017 @12:36AM
(#15623808)
cool! good to know.
Maybe Spectrograms?
i.e. Aphex Twin's Equation
More here: http://twistedsifter.com/2013/01/hidden-images-embedded-into...
Does anyone know what I mean, and has a link, since I can't seem to find it...?