James Connolly

Cathode Ray Algorithms

2024, 8:16, HD video

Cathode Ray Algorithms is an 8-minute experimental electronic noise visual music composition.

Custom software and hardware modifications algorithmically drive video and magnetic tension in modified cathode ray tubes. High-frequency audio is bent into video to generate flickering psychedelic colors. Electromagnets placed around the electron gun of each monitor receive low-frequency audio, shaking the screen’s visuals through complex waveforms visualized in an oscilloscope. The same signals driving video are sent to speakers, creating a captivating composition of sound and light that celebrates the hidden aesthetic materiality of these obsolete devices.

Still from Cathode Ray Algorithms showing a stack of 19 TV and VGA CRT monitors and an oscilloscope, all showing bright colors with electromagnetically manipulated shapes 13 cathode ray tubes showing bright video synthesis colors
Closeup of a CRT monitor showing bright video synthesis colors glitched by electromagnetic signal Closeup of 8 CRT monitors showing bright video synthesis, one broken CRT monitor showing a horizontal line, and two CRT monitors turned off with a dark background. Closeup of an oscilloscope visualizing a circular waveform.