Control PulseAudio with a MIDI controller

This project lets you use the Behringer X-Touch Mini to control your audio. It integrates with PulseAudio and maps every audio channel to an encoder on the Behringer X-Touch Mini.

Features

• The volume of every audio channel (input or output) in PulseAudio is controllable with an encoder on the Behringer X-Touch Mini.
• All audio channels can be muted using the buttons below the encoders.
• The LED ring around the encoders will show the volume level.
• Audio in your browser or in a program like Spotify can be played, paused, stopped.
• When media is playing or paused, the play button is lit or blinking.
• The first encoder is always the main volume, the last is always the active microphone.

Dependencies

• Ubuntu or other Linux distro that uses PulseAudio
• Package playerctl to be able to control the media (sudo apt install playerctl)
• Package libasound2-dev and python for the MIDI library (sudo apt install libasound2-dev python)
• Node 16+
• NPM 7+

How to use

Checkout this repository, connect your Behringer X-Touch Mini (in standard mode), and run the following commands;

npm install
npm run start

The output will show how the audio channels are mapped to the encoders. This updates every second;

...
Controller 1: Built-in Audio Analog Stereo
Controller 2: Google Chrome
Controller 3: spotify
Controller 8: Blue Snowball Mono