Jalv 1.2.0

Jalv 1.2.0 is out. Jalv is a simple but fully featured LV2 host for Jack. It runs LV2 plugins and exposes their ports as Jack ports, essentially making any LV2 plugin function as a Jack application.


  • Tune UI update rate and ring size based on JACK rate and MIDI buffer size to handle the handle the maximum message rate the plugin can send.
  • Support lv2:sampleRate control ports.
  • Tolerate loading presets with port values that aren’t xsd:decimal
  • Notify plugins of Jack transport changes by sending events (an atom:Blank with properties from the LV2 time extension)
  • Refuse to instantiate plugins which require unsupported features
  • Support LV2 buf-size extension (with all features)
  • Add Gtk3 UI
  • Port to MinGW
  • Fix Jack Session support

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