adif.plugin = Korg USB MIDI driver

macOS Mojave is giving warnings about 32-bit software as the next version, which is macOS Catalina, will no longer support 32-bit software.

I’ve been able to determine what software relates to each warning except for one โ€“ “adif.plugin”. No amount of Googling helped (I don’t have any amateur radio software installed), but I finally figured it out today. To help others who might be Googling for this, here is the answer.

It belongs to the Korg USB MIDI driver that was installed to provide MIDI support to some piece of Korg hardware. In my case, it was the nanoKONTROL2, but the driver is generic and used for a lot of their hardware.

The last update for macOS (as of this writing) is version 1.2.5 r2 released on 2019-02-21. I don’t know if there are plans for a new version, but hopefully anyone searching for “adif.plugin” will now know that it is used for Korg USB MIDI.

If you want to verify this yourself, you can with these steps.

  1. Open Finder
  2. Go to the /System/Library/Extensions/adif.plugin folder using the Go > Go to Folder menu, or โ‡งโŒ˜G keyboard shortcut.
  3. Open the context menu for adif.plugin (right click or Ctrl-click) and select Show Package Contents.
  4. Inside the Contents folder will be an Info.plist file. Hit the space-bar to preview the file. You will see references to Korg USB MIDI listed.

My quest to get MIDI working on the Avid S3L

During large productions, my team uses QLab to play various sound effects, and to trigger snapshots changes on our Avid D-Show mixing console. I’d like to make use of the same triggers on the Avid S3L we use for our video mix, but unlike the D-Show it doesn’t have built-in MIDI.

According to the Avid Knowledge Base, the Roland UM-One MK 2 is officially supported, but that other class-compliant USB MIDI interfaces should also work. I don’t have the Roland, so over time I’ll try out various interfaces that I come across to see what I can get working.

If you know of a MIDI interface that works with the S3L-X, leave a comment and I’ll add it to the list.

Device Works? Tested Notes
MOTU 828mk3 No 2018-11-18
MOTU Stage-B16 No 2018-11-18
MOTU UltraLite-mk3 Hybrid No 2018-11-18 USB mode requires external power.