Circuit diagram: https://github.com/FrankBuss/ym2151 ... https://www.youtube.com/watch?v=Ju2U2PXz99o

A Generations cellular automaton. This is my first cellular automaton written in assembler. It is only 181 bytes long and should work on a wide range of computers, from old 80386 computers with DOS, to modern Pentium machines with Windows XP. You can download the source code and the executable at http://www.frank-buss.de/automaton/arabeske.html Java version: http://www.frank-buss.de/automaton/arabeske-java.html Music found on jamendo.com: "Fin", from the album "Feather Drug", by Tilia's Flower ... https://www.youtube.com/watch?v=iA1XGM0CGnU

This is a great synthesizer from "tempo rubato" for your iPhone. See http://itunes.apple.com/us/app/nlog-free-synth/id314134854 for better screenshots. Now I can play keyboard when I'm on the road :-) With the full version you can even create your own sounds. If you don't need a full synthesizer, the free (at least when I was writing this) "Real Piano 2" is awesome: http://itunes.apple.com/at/app/real-piano-2/id471906421 ... https://www.youtube.com/watch?v=jFp7xBSDzNs

Testing this Mushrooms audio file: https://www.youtube.com/watch?v=rtR63-ecUNo Scope: Voltcraft Oszilloskop 610 Sound card: RME Babyface USB sound card Video recording: iPhone X I used the WAV audio file with 192 kHz samplerate and played it with Audacity. You can download the wave file here: https://jerobeamfenderson.bandcamp.com/track/how-to-draw-mushrooms-on-an-oscilloscope-with-sound I couldn't scale it to full size, because I have only 1:10 scope probes and there were some distortions in the audio output, so I had to attenuate it be 6 dB (half amplitude), and the x/y-mode has a fixed amplification for one axis. You can also notice that my sound card is AC coupled, e.g. at the beginning of the video if you compare it to the original video. ... https://www.youtube.com/watch?v=ZxTXUAeUa2M