Rack is a standalone DAW-like application and not a VST/AU plugin because of the major limitations of these formats. It is common to think of physical modular synthesizers as entire self-contained DAWs, so many people use Rack as a complete DAW to compose music and build patches without other software.
However, VCV Bridge allows audio, MIDI, DAW transport, and DAW clocks to be transferred between Rack and your DAW through the included VST/AU Bridge plugin.
The setup order between Rack and your DAW does not matter.
Up to 8 channels of audio entering the Bridge effect plugin are routed to the INPUT section of the Audio module in Rack and then back to the effect plugin.
The 16 automation parameters in the VST/AU Bridge plugin simply generate MIDI-CC messages 0-15, so you can use a Core MIDI-CC interface to convert them to 0-10 V signals in Rack.
Add a “VCV-Bridge” plugin to a MIDI track and open the automation parameters by clicking the triangle icon next to the plugin's name. Bridge will send MIDI and receive audio from Rack.
To send audio to Rack, select the Bridge's track under the “Audio To” menu on another track, and optionally select the channel pair (1/2, 3/4, 5/6, or 6/7).
To record audio from Rack, create a new audio track and select the Bridge's track and optionally the channel pair under the “Audio From” menu. Make sure “Monitor” is set to “In” on the Bridge's track to enable audio output even when it is not record-enabled.
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