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Submitted by rncbc on Tue, 4 Oct 2011 - 07:43

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  1. make sure you have the jack server up and running, you might use qjackctl for just that.
  2. make sure you're using the "jack" audio driver (cf. Setup.../Audio) and the "alsa_seq" midi driver (cf. Setup.../MIDI).
  3. open and load a soundfont file (*.sf2) into qsynth (cf. Setup.../Soundfonts) and restart qsynth engine.
  4. then connect your keyboard midi output to qsynth midi input under qjackctl alsa connections.
  5. switch to qjackctl audio tab and connect qsynth audio output to your system playback outputs, if not already.
  6. you can opt to always show the output peak level meters (cf. Options...)
  7. now play the midi keyboard, check the midi signal on input (flashing green lights) and audio peak levels on output.

hth.
cheers

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