midi merger problem

[dennisOl]

Hello,

I'm new to this forum, so please forgive me if I make a mistake.

I'm currently working on an organ project, for which I need a MIDI controller that I created using the Control-Surface library.
The MIDI signal from my MIDI keyboard (which is connected to the controller via a serial input) needs to be mixed with the controller's output signal.
I've tried to achieve this through piping, but I'm having trouble.
Can someone help me to combine the MIDI input with the controller output and send this combined data to the MIDI output?

Thanks in advance
Dennis.O

[Trickster-git]

https://github.com/tttapa/Control-Surface/tree/main/examples/3.%20MIDI%20Interfaces/Dual-MIDI-Interface

[dennisOl]

Hi, Yes I have seen this but this is about sending the control signals output to two different midi outputs (USB & serial).
What I'm looking for is a way to combine the midi signal from my midi keyboard with the control-surface output signals and send both to one (1) midi output.

[tttapa]

Merging and routing MIDI is done using MIDI Pipes. You can find the documentation here: https://tttapa.github.io/Control-Surface/Doxygen/d3/df7/midi-tutorial.html#midi_md-routing

See the “Routing between MIDI interfaces” section specifically. I think you're after a similar setup, but with the direction of the arrow between midi and midimon reversed:

// The primary MIDI interface used by Control Surface.
USBMIDI_Interface midi;
// A secondary serial MIDI interface
HardwareSerialMIDI_Interface midi_ser {Serial1};
// Pipe to route messages from midi_ser to midi.
MIDI_Pipe mpipe;
 
void setup() {
    midi.setAsDefault(); // Make this the primary interface.
    midi_ser >> mpipe >> midi; // Route incoming messages from midi_ser to midi.
    Control_Surface.begin();
}

[dennisOl]

Thanks, I'm gone give it another try.

[dennisOl]

Well I've tried it (several options), it works, the keyboard signal is passed to the output, the controller signal is passed also, but booth at the same time is giving me a cracking noise during controller movements while playing, it looks like the mixing (on the fly) is going wrong.