I built this because I kept reaching for the mouse just to tweak volume while my perfectly good MIDI controller sat there unused.
Now any knob or fader can control your Mac’s volume — system and Apple Music separately — right from the menu bar. Plug in your controller, hit “MIDI Learn,” twist a knob — done.
It’s tiny, local, and weirdly satisfying — no ads, no subscriptions, just works.
Runs fully offline using macOS Core MIDI and Core Audio APIs.
Now any knob or fader can control your Mac’s volume — system and Apple Music separately — right from the menu bar. Plug in your controller, hit “MIDI Learn,” twist a knob — done.
It’s tiny, local, and weirdly satisfying — no ads, no subscriptions, just works. Runs fully offline using macOS Core MIDI and Core Audio APIs.
https://kohlhofer.com/midiVol/
Curious what else people would map to MIDI — mic gain? brightness? app switching?