Java internal synth

The Java runtime engine used by JJazzLab has an internal Midi synth (sometimes callled Gervill).

If you don't load a SoundFont file it will use its built-in GM sounds.

The built-in GM sounds are not good quality sounds, but it can be enough to test JJazzLab. The good thing is that no setup is required, it will work out-of-the-box.

Initial setup with the JJazzLab SoundFont

The Java internal synth is not high-performance. When used with a large SoundFont like the JJazzLab SoundFont you may hear some dropped notes when too many notes are played.

  1. Download JJazzLab-SoundFont.sf2 from the Musical Artefacts web site

  2. In the JJazzLab Midi options, select the Java Internal Synth and load the JJazzLab-SoundFont.sf2

  3. Go to the Output Synth Editor and apply the preset Java Internal Synth

If you’re on Mac OSX the Midi configuration wizard will automatically perform the same steps if you choose to use the JJazzLab SoundFont.

Edit on GitHub