junXion Lite

junXion Lite is a software application for audio/music performers, art installation makers, theatre makers etc. The application is based upon junXion v4 (more info) but offers a limited feature set. Only HID devices and one WiiRemote is supported.

junXion Lite is a Mac OS X data routing application that allows the connection of any HID compliant game controller or other input device and defines, in an easy user interface, the translation of each key or joystick action into a specific MIDI event. The resulting MIDI data is then available to any audio/music software that runs on that Mac or can be send to external MIDI interfaces.

junXion Lite

junXion Lite features

  • recognition and usage of 2 types of Input Sensors
    • Human Interface Events, such as joystick X-axis, mouse scroll wheel, touch screen Y-axis
    • WiiRemote Events, the popular Wii controllers support (on bluetooth machines)
  • being resolution independent, junXion Lite can handle any input data up to 16-bit resolution
  • up to 25 Patches can be created, i.e. an Input Sensor such as ‘joystick X-axis’ can be connected to an Action, the Action processes the joystick data and translates it into a MIDI event
  • one Input Sensors can be connected to different Actions, so for example one switche of your joystick can trigger multiple MIDI events
  • (auto) scaling of the incoming data
  • straight or conditional mapping from the incoming data into one of the available MIDI events
  • remapping of the computer keyboard and mouse to MIDI events
  • creation of analog style sequencer using junXion’s Timer
  • MIDI output port selectable per Action
  • the possibility to simultaneously connect up to 15 HID input devices and route them to separate or common MIDI channels/ports (for example: you can for instance ‘play’ Ableton Live with two joysticks and the computer keyboard)
  • external MIDI input data can be merged with junXion’s MIDI data
  • save/recall user defined configurations
  • editable table based response curves for the translation of gestures into MIDI controller data
  • an extended set of data conditioners and conditional data routing (for example: passing a threshold by moving a joystick will first trigger a note and than send its further movement data as MIDI controller data)
  • One Timers for a timed data stream triggered and ‘steered’ by external input devices (for example: use for simple sequencing)

Some of the above functionality has successfully been applied in other STEIM systems for live performance: LiSa, The Lick Machine, SensorLab etc. The Amsterdam based STEIM foundation and its researchers have been at the forefront of the invention of physical input devices and touch based hard-and software instruments for live electronic music performance since the early 70′s. STEIM’s longtime director Michel Waisvisz, unfortunately now deceased, was one of the driving forces behind performances with free movement hand worn sensor/keyboards and has, together with programmer Frank Baldé, designed several hardcore performance systems.

Technical Notes:


Download the demo here. When purchasing the software, you will receive a registration code by email that will remove the restrictions on the demo. In demo mode you cannot save any setups, and the program will only work for 20 minutes every time you start it.


junXion Lite can be ordered online for € 25 at the KAGI online store.

Upgrade to junXion

Registered junXion Lite users can update to junXion. Upgrades can be purchased at our online store.


System requirements

junXion Lite is a Universal Binary and runs on any Apple Macintosh with Mac OS X 10.4 or higher. Note that installing ‘USB overdrive’ or other drivers for gamepads and joysticks might interfere with junXion.


We have prepared a series of video tutorials to get you started with junXion. The tutorials can be found here. For a list of frequently asked questions please visit the junXion FAQ.

The online junXion Lite manual can be downloaded here: junXion Lite manual. For general support on STEIM software, please visit the support pages.

General tutorials on MIDI and Music Synthesis