To use WIDI AU, you need to set an Audio Track to output data to the plugin. Audio Unit technology does not support direct MIDI output to the host, and you have to use either virtual or hardware MIDI loopback to output MIDI from WIDI AU to the host's MIDI Track. See MIDI routing for details.
In this section you will find detailed step-by-step instructions on how to use WIDI AU with several common music production applications as well as recommendations for a generic AU host.
