A pulse audio configuration for the Zoom L-12 (L12) Mixer to enable input/output separation on Linux.

Use at own risk

Tested on Manjaro KDE

1. Copy the .config folder to your home directory or more specifically the default.pa-file to ~/.config/pulse/default.pa
2. Enable Class Compliant Mode (Switch on back of the L-12)
3. Set Sample Rate to 48kHz (Switch on back of the L-12)
4. Set Mode to Audio Interface
5. Restart L-12
6. Restart Pulseaudio: systemctl restart --user pulseaudio

The default.pa is a copy from /etc/pulse/default.pa that has been modified to use the L12. The base file will be ignored if pulse finds that a configuration in the home directory ~/.config/pulse/default.pa is present.

• The device will be in the settings even if it's not connected
  • I first hoped to be able to make it only apply when the device is connected but couldn't quite get it to work as desired. So I just decided to let it be as it was good enough for my desktop setup
• As the Config is statically loaded it can be that it breaks especially after standby or when replugged.
  • Typically restarting pulseaudio is enough to make it work again

If someone knows/finds a better way to solve this, I'd be very happy to see a PR. :)

I tried ALSA at first but couldn't get it working. But an ALSA-based solution would also be appreciated.