What you need to do is connect the MIDI out of the computer to the MIDI in of the synth (FP-4)
Then connect an audio cable from the Line Out of the synth to the Line In of the Delta.

Tell PT to send the MIDI out to the synth by changing 'Options - preferences - MIDI Device' to the Delta so it sends the MIDI to the synth. The synth will then create the actual sound (when you hit play or record). The audio will then be sent back to PT via the audio cable so you can record it.


I do not work here, but the benefits are still awesome
Make your sound your own!