[LAD] Controlling apps via hardware buttons

[Christopher Arndt]

Am 28.02.22 um 13:31 schrieb Jonathan E. Brickman:
> 
>> Audio related things I've written include python bindings for the jack 
>> dbus interface, a jack application managing tool to start/stop/mute 
>> applications via hardware buttons
> 
> My 7-key SpiderIsland (USB keyboard interface, not MIDI) just came, and 
> I'm planning to set it up with XFCE keyboard shortcuts to command 
> non-mixer to do mutes and volume changes, of audio channels in my BNR ( 
> https://github.com/ponderworthy/the-box-of-no-return-3 ).  

I have an example for python-rtmidi, which does a similar thing, i.e. 
you can run arbitrary commands on reception of certain MIDI events. You 
can combine this with e.g. "xdotool" to send keyboard strokes to 
applications.

IIRC, non-mixer has an OSC interface, so the more direct way would be to 
use a MIDI-to-OSC gateway. I have an example for that using 
python-rtmidi as well

https://github.com/SpotlightKid/osc2rtmidi

... but these days I would recommend just using midimonster, which is 
very powerful and an active project:

https://midimonster.net/ | https://github.com/cbdevnet/midimonster


Chris