I've done this many times in RB. Think about the signal path.
MIDI out to synth, and audio from synth back to computer.
Then, is the target recording track type MIDI or Audio?
You want to record Audio in the end (from the synth), right? So it should be Audio (probably stereo audio)

Then it's a matter of getting the MIDI to the synth (including selecting the correct MIDI out driver in RB)
You may even have to uncheck the box for 'Reroute all MIDI to default synth'.
Or there might be a way using the available Ports for that track, but that's more complicated.

Then the audio from the synth into the computer
with the correct audio input driver selected

Test 1
Does the MIDI out get to synth?
Listen to synth (with headphones plugged into synth directly) while the song plays to eliminate any other possibility.

Test 2
Is audio getting to computer?
Your audio interface and the input meter in RB should give clues on how far along the audio signal is getting from the synth jacks to the DAW.

If RB is the only thing not showing the audio signal it's likely driver selections.

Last edited by rharv; 02/14/20 02:07 PM.

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