A highly flexible and configurable OSC to JACK MIDI (and back) bridge
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OSC2MIDI is a highly configurable OSC to jack MIDI (and back) bridge. It was designed especially for use on linux desktop and the open source Android app called "Control (OSC+MIDI)" but was deliberately written to be flexible enough to be used with any OSC controller or target. It has not been tested on windows, but has been reported to work on OSX.

To try it out download the source files, extract them, and open the resulting directory.

This project uses cmake. The easiest and safest way to install is to do the following commands:

mkdir build
cd build
cmake ..
sudo make install

If you are missing anything cmake will tell you. Mostly you will just need cmake, liblo and jack. To get these on ubuntu just run

sudo apt-get install cmake liblo-dev libjack-dev

Once installed you can simply run OSC2MIDI with the command


For additional details on what options are available run

osc2midi -h

OSC2MIDI allows you to change the mapping between OSC and MIDI messages using an OSC to MIDI map file (.omm). This package has several mappings already installed in the folder /usr/local/share/osc2midi/. The default mapping is made to work with all the default interfaces that come with the Control Android app. Other included mappings are:

  • touchosc - this was made to work with the proprietary Android app of the same name, but I don't own it so it is untested. NOTE: There is a "to2omm" script available at https://bitbucket.org/agraef/osc2midi-utils which allows you to convert TouchOSC layout (.touchosc) files to OSC2MIDI map (.omm) files. The script extracts the MIDI mappings contained in the TouchOSC layout and creates a corresponding map file ready to be used with OSC2MIDI.

  • androsc - this file works with the default widgets in the open source android app andrOSC

  • generic - this was made to work with generic OSC clients that send MIDI like messages

  • control - identical to the default map, made to work with the Control app

  • gameOfLife - this mapping is a more detailed mapping for the game of life interface that comes default with Control. It is a bit more musical than the default mapping.

Mappings are in plain text and are completely human readable. If you wish to make your own map file or tweak the existing ones there is extensive documentation in syntax.md and also the default map file installed to /usr/local/share/osc2midi/default.omm or found in the maps/ directory of this repository.

You can make your own mappings and store them in $XDG_CONFIG_HOME/osc2midi/ which is usually located at ~/.config/osc2midi/. Mappings in this directory will be used first, followed by maps in /etc/osc2midi/ and finally in the default install location of /usr/local/share/osc2midi.

If you want to try a different mapping just run with the -m argument, i.e.

osc2midi -m gameOfLife

This will run with the mapping dictated by gameOfLife.omm in the first directory it finds it in. The app will check the directories as outlined above if it cannot find the specified file as a relative or absolute path.

For creating your own mappings it might be useful to use monitor mode (-mon) which only prints out the OSC messages that are received. While testing a new mapping it is often useful to run with verbose mode on (-v).

If you develop a mapping that others might find useful please post it in our as an issue in github or do a pull request so it can be included with the source.

Also included with this source code are some custom interfaces that can be loaded into the Control app for Android and iOS. These can also be accessed through the URL http://ssj71.github.io/OSC2MIDI/interfaces/[interface_name].js for convenient loading into Control. For Example: http://ssj71.github.io/OSC2MIDI/interfaces/gen_synth_phone.js