Then I can get some sound as follows: sudo apt install fluidsynthįluidsynth -a alsa /usr/share/sounds/sf2/FluidR3_GM.sf2 If you want to pipe ALSA output to another synthesizer of your choice, in the MIDI Setup you can set instead: Likely the relevant settings which make it work by default are: I don't fully understand the details, but on Ubuntu 20.04 I just get sound out of the box from vmpk (not using Qsynth and JACK). Vmpk produces sound by default on Ubuntu 20.04 The primary difference is that you will be using a virtual keyboard rather than a physical keyboard, but patchage should not be able to tell the difference. Virtually press any key in vmpk to hear soundĪlthough the specific tools in use differ slightly, you may find the guidance at Ubuntu Wiki helpful.In Qsynth, load a soundfont from /usr/share/sounds/sf2/FluidR3_GM.sf2.
In your specific situation, where you want to use vmpk, qsynth, and jack control, I would recommend the following procedure to generate audio based on virtual keystrokes: