This was damn cool. Watching and listening to it I wonder what is the hardest. Producing video with a sound chip or producing audio with a video chip. Fun stuff.
wasabi991011 17 hours ago [-]
For others like me confused as to why there's not a video example on the page: click the youtube link in the first sentence!
I thought this would be a post about the messaging service and current politics in the US.
Much nicer! Very cool demo!
franky47 5 hours ago [-]
I'd love to see (and hear) what happens if you send the same signal through both video and audio.
Probably not as nice as this demo, but I'm sure there must be some signal combinations that yield interesting results.
ahartmetz 33 minutes ago [-]
That has been done, not on the C64 and raster CRT though. Search term "oscilloscope music".
matthiaskramm 3 hours ago [-]
I... might have to try that. :)
jwr 7 hours ago [-]
I love the hack value, this is the kind of content I am here for!
WorldPeas 8 hours ago [-]
has anybody tried this with a modern computer, can that get more horsepower out of audio-video?
thenthenthen 2 hours ago [-]
You can plug in any analog audio source into analog video (crt, video mixer). You can even mix audio + video using two resistors and have the music distort the video source. Another fun one is ‘no input mixing’ using a audio mixer (plug in output to input to get interesting feedback). Wonder if that would work with video mixers mmm
junon 5 hours ago [-]
The problem you'll almost immediately run into is that modern computers typically use digital video streams rather than analog streams. You'd need to use VGA for the audio part (and that's making a lot of assumptions about the ability to send arbitrary stuff on it, I'm not exactly sure these days), and I'm not sure what readily available component could even be used for the video part.
schobi 2 hours ago [-]
Right - unlikely this is going to work.
For sending a VGA signal even at 640x480 you will need a short h sync pulse of 3.8us at 31.x kHz. You would need an audio interface without filters with single low pulses at 260 kHz samplerate. Otherwise the monitor will just not detect a signal.
You could however use h sync and v sync from the VGA output and feed audio to the rgb channels. But thiswould give a mess of wires and is far from the beautiful idea shown here to just connect the white/yellow plugs differently.
mrandish 4 hours ago [-]
Sure, but there are slightly more modern systems that still had analog composite video and audio output which had a lot more power than a 6502-based C64 - like the 680x0-based Amiga. Also, other systems may not have had the C64's bandpass filter on the audio which induced the bluriness in this demo.
barbazoo 13 hours ago [-]
What a beautiful thing to do
layer8 16 hours ago [-]
I’d like to see & hear the correctly plugged version of the video.
egypturnash 15 hours ago [-]
https://csdb.dk/release/?id=252090 plus a c64 emulator; it's a pretty similar experience to just watching colors flash on the screen while a game loads and decrunches...
gforce_de 16 hours ago [-]
My first reaction too, but...
kreyenborgi 13 hours ago [-]
[flagged]
Rendered at 11:35:59 GMT+0000 (Coordinated Universal Time) with Vercel.
Super cool mesmerizing effect.
Much nicer! Very cool demo!
Probably not as nice as this demo, but I'm sure there must be some signal combinations that yield interesting results.
For sending a VGA signal even at 640x480 you will need a short h sync pulse of 3.8us at 31.x kHz. You would need an audio interface without filters with single low pulses at 260 kHz samplerate. Otherwise the monitor will just not detect a signal.
You could however use h sync and v sync from the VGA output and feed audio to the rgb channels. But thiswould give a mess of wires and is far from the beautiful idea shown here to just connect the white/yellow plugs differently.