Signal Carnival

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.

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.