Displays music using fractal flames and hardware acceleration (openCL)
This program takes audio input from microphone, you can redirect pc audio output using control panel on Windows or pavucontrol on Linux.
Your computer needs to support openCL (is sufficient a modern gpu or a intel core cpu)
F11 toggle fullscreen
S toggle stroboscopic flash
NUMBER [0 to 9] change number of symmetry axes
very good program sinestesia-gpu.