NOTE: this is a bit out of date. The PX5 has been replaced by the Model 1.4 and I no longer need to use software for HP and LP filters per channel.

MIDI clock signal is generated by the Mixxx MIDI clock and distributed to software and devices over USB and MIDI DIN. This is fundamental to keeping external gear like the drum machine in sync with tracks playing in Mixxx.

Mixxx is used for playing tracks in external mixer mode. Each deck’s audio is routed to a corresponding channel in Ardour.

Each channel in Ardour has a High and Low pass filter to emulate the Model 1. If find mixing with filters and EQ creates really nice, sound sculpted blends. Each channel has two internal FX sends for using various VST plugins (eg, delay and reverb). FXs can be synced to the midi clock produced by the Mixxx MIDI clock.

Both the Xone:K2 and the Midi Fighter Twister are used to control everything in Mixxx, Ardour and some stuff on the Beebo.

See also my Ardour midi binding map and my custom Xone:K2 controller mapping.

I’m having a lot of fun incorporating a drum machine and sampler into the setup. Right now I’m using a Roland T-8 and TE EP-133 K.O. II.

I use a script symlinked into a location in my path so I can just type pmixxx to start the programs and make the pipewire connections.

https://github.com/apmiller108/audio/blob/main/pipewire_mixxx_startup.sh