How To Draw Mushrooms On An Oscilloscope With Sound
Jellybean Fenderson3 HN recommenders · recommended in 3 months, 2017–2022
tutorial · intro · evergreen · 2017–2022 on HN
Jerobeam Fenderson shows how to draw a mushroom on an oscilloscope in XY mode using stereo audio, then animates it by modulating with a larger wave. Pd and Max4Live patches are provided.
HN finds it mesmerizing and uses it to build intuition for waveforms and oscilloscope XY drawing.
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5 comments from Hacker News
Anyone have a some tips on wanting to build intuition on wave-forms, electronics, and having fun with an oscilloscope? This was amazing to me: How To Draw Mushrooms On An Oscilloscope With Sound ▶ this video
I like this guy. I thought this was going to be a more introductory video: ▶ this video (holy c *, he published a lot of these since 2014, they're pretty good :) ) This has been done with quake: link
I find this video quite mesmerizing: ▶ this video Essentially it draws an object on an oscilloscope by splitting the audio channel into x y coordinates.
What you've written is extremely interesting. Not sure how much of it I truly understand, but I wanted to add that your explanation for everything as a wave function reminded me of oscilloscope music, ie. depicting images with waveforms. A tutorial I watched demonstrates the drawing of a mushroom, then animates it by modulating with a larger wave. In my laymen's head model, Spacetime is like a very large wave that everything else is being modulated by. Here's the relevant video: ▶ this video
Very cool! Reminds me of Jerobeam Fenderson using the XY mode in ossiloscopes to draw images with stereo sounds: ▶ this video