Launch Tracktion and open your current project via the Open Project button.
Next, select an Audio track output as “default audio device”. The default audio output will become the master output for Tracktion’s mixed stereo output from the master fader (located on the right hand corner on the Edit screen).
Then, just drag and drop a “new filter” from the top right area to the selected track. When the plug-ins list appears, select “ARC” so its interface will open. In the ARC System User Manual, please read 5.2 ARC Plug-In controls to understand how to use ARC Plug-In.