Barva is a modular audio visualizer, which aims to be cross-platform and implement multiple frontends, e.g. bars, pulse, milkdrop-like.
As of now, only GNU/Linux (PulseAudio) is supported. The "pulse" frontend is implemented and the "bars" one is being developed. Despite being unfinished, this version of Barva has already superseded the functionality of the old Barva, which is written in C and lives in the legacy branch.
IMPORTANT: The "pulse" frontend can, in theory, harm people sensitive to flashing. Please, don't use it if you have such condition.
pip install barva
$ barva --help
usage: barva [-h] visualizer ...
positional arguments:
visualizer
pulse-fire
Draw a fire-like animation.
pulse-hex Yield a hex color that pulses.
pulse-term
Pulse this terminal.
pulse-terms
Pulse all terminals.
pulse-bspwm
Pulse the window borders (requires BSPWM).
optional arguments:
-h, --help show this help message and exit
Each subcommand also has its own help message, e.g. barva pulse-fire --help.
If Barva doesn't seem to work, it's likely that it hasn't guessed which audio sink to monitor correctly. In this case, make sure that some music is already being played through the right speakers/headphones when you start Barva.