Signal Carnival

[Flow]

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.

[brazzy]

After reading the article it's clear that the former is much more difficult, because video needs much higher bandwidths than the sound chips are designed to produce, and the hardware even contains extra hurdles like a bandpass that filters out higher frequencies even if you manage to hack the chip into producing them.

That's why the video basically happens in only one dimension instead of two.

[olelele]

I thought this would be a post about the messaging service and current politics in the US.

Much nicer! Very cool demo!

[wasabi991011]

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!

Super cool mesmerizing effect.

[mmanfrin]

https://www.youtube.com/watch?v=_Orvsms7Ils

[franky47]

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]

That has been done, not on the C64 and raster CRT though. Search term "oscilloscope music".

[matthiaskramm]

I... might have to try that. :)

[barbazoo]

What a beautiful thing to do

[layer8]

I’d like to see & hear the correctly plugged version of the video.

[egypturnash]

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]

My first reaction too, but...

[jwr]

I love the hack value, this is the kind of content I am here for!

[WorldPeas]

has anybody tried this with a modern computer, can that get more horsepower out of audio-video?

[thenthenthen]

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]

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.