Use the steps in this guide if the controls of your Spectrasonics instruments are not responding to MIDI Learn assignments or if you're unable to connect your hardware synthesizer to use with Omnisphere's Hardware Synth Integration in FL Studio.
1. From the OPTIONS menu select "MIDI Settings."
2. In the Settings window, make sure your MIDI device or hardware synth is Enabled as a Generic Controller then set the Output Port to a specific number (0, 1, 2, etc):
3. In your Spectrasonics instrument's VST Wrapper window, select the VST Wrapper Settings button. In the MIDI section of SETTINGS, make sure the Input port is set to the same Port number that was set in Step 2 of this guide.