Harsh digital noise from a device called "The Solarcrack"

Warning: loud and harsh sounds.

Around 2010, I took part in a large secret santa exchange. I was gifted a homemade device from a stranger. It's an Altoids mint with a solar panel glued to it. Scratched on the tin is the word "SOLARCRACK". Inside, a circuit board and some buttons hot-glued to the bottom. There's a headphone jack on the side.

The device reacts in some way with light. I've never figured out exactly what the buttons do, but they affect the sound too.

This file is free for you to use and adapt as you please. The only processing I've done is a small bit of limiting and volume/pan adjustments.

This recording is neither L/R or M/S stereo encoded. The two channels of this sound file are largely uncorrelated. You can get interesting results by treating this audio as Mid/Side, using a free tool like MSED, running in "decode" mode

Points of interest:
1:00 Chirping
1:30 8-bit video game console
2:05 Chirping interspersed with computerized fart noises
3:00 Synthesized screaming
4:25 Winshield wipers
4:44 Dot matix printer meets R2D2