I was able to get GS-10 Manager to change its knob display by connecting a virtual cable as input and also connecting a different virtual cable as output that doesn't go to anything.
1. I configured loopMIDI to have two virtual cables, called "loopMIDI Port 1" and "loopMIDI Port 2".
2. In GS-10 Manager, I went to the Options menu, MIDI devices. I selected "loopMIDI Port 1" as an input, and selected "loopMIDI Port 2" as an output.
3. In the Options menu, GS-10 options, I selected "loopMIDI Port 1" as the GS-10 input port, and "loopMIDI Port 2" as the GS-10 output port. After I clicked OK, a moment later it complained that it didn't get a response from the GS-10, but I just closed that message.
4. In the Temporary Patch window, I went to the View menu and selected Effects to display the Effects window. In the Effects window, I made sure the Channel was C.
5. In a MIDI player (I used Sekaiju), I set the MIDI Output as "loopMIDI Port 1", then played the attached MIDI file (Download: gs-10-test.zip
). The Gain knob in the Effects window changes as the MIDI file plays.
Additional FYI: In Cubase or in GS-10 Manager or in MIDI-OX, if a particular virtual cable is selected as both a MIDI Input and a MIDI Output, and if the program is set to send a copy of messages it gets from its MIDI Inputs to its MIDI Outputs, this can cause messages to get sent over and over in an infinite loop. I think something like that was causing the repeated messages you saw in MIDI-OX. I don't think this was related to your problem in this case, it was just a red herring while troubleshooting.