Problems with MIDIBus Libary

Elokuu

Hey there,

I'm trying to use the MIDIBus library, but already when using the "Basic" example it gives me an error:

The MidiBus Warning: No available input MIDI devices named: "Java Sound Synthesizer" were found

Available MIDI Devices: ----------Input---------- [0] "Real Time Sequencer" ----------Output---------- [0] "Gervill" [1] "Real Time Sequencer"

I would like to use Processing to create some MIDI data and send it via some virtual port to some soft synth. Does somebody has an idea how I could do this?

I'm running Ubuntu 12.04 (64Bit) and Processing 2.1

Thanks

velvetkevorkian

The default parameters that are set up in that example includes this on line 24:

myBus = new MidiBus(this, -1, "Java Sound Synthesizer"); // Create a new MidiBus with no input device and the default Java Sound Synthesizer as the output device.

You could change this to, for example myBus = new MidiBus(this, -1, "Real Time Sequencer"); which would give you an output to the Real Time Sequencer device.

You'll need to use an external utility to set up the virtual MIDI port. I'm afraid I don't know how to do that on Linux — it's done through the audio configuration on OS X and via a program like MidiLoop on Windows. I imagine there will be something similar available if you search. That should let you give it a name (e.g. myVirtualMidiPort), and you could then use myBus = new MidiBus(this, "myVirtualMidiPort", "myVirtualMidiPort");

That should give you MIDI I/O on the virtual port which you could then access in your other application.

Hope that helps.

Elokuu

Thanks for the help. I finally managed to get it up and running with the virtual MIDI ports. I created them with: sudo modprobe snd-virmidi and then connected them via Jack to some soft synth (Qsynth).