Having trouble with MIDI output

Questions
,
1

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  • Device model (e.g. 2020 iPad Air 4th Gen): Windows 11 Home
  • Version of operating system (e.g. macOS 14.4.1): 25H2
  • Version of djay (e.g. 5.1.2):5.6.6071.0
  • Hardware/controllers used (e.g. Reloop Mixon 8 Pro): n/a
  • Hardware firmware version (e.g. 1.0.1): n/a
  • Please consider sharing a short video or screenshots to help clarify your question

YOUR QUESTION:

I am trying to figure out how to get DJay to actually output MIDI. I am developing a custom virtual controller that I use to connect via loopMIDI. I have no trouble controlling DJ, the issue is DJay doesn’t seem to emit any MIDI when controls are manipulated either directly in app via mouse, or via a hardware controller. I am thinking maybe the hardware controller feedback which works even though i see no MIDI output in a MIDI monitoring app like protocol) must be HID?

I’m looking for telemetry from DJay, when play/pause is pressed, cc values when crossfader is moved, etc.

I do have these mapped as output in the controller mapping under advanced. DJay does echo out the MIDI I send it, but it doesn’t emit MIDI either from manipulating controls with mouse or hardware controller.

snip from mapping file (noting output uses input channel, cc, note on/off by default, it only shows a type/value if it’s different from the input value, in mapping below only thing different on the output is the channel)

<dict>

        <key>keyPath</key>

        <string>mixer.crossfade</string>

        <key>midiChannel</key>

        <integer>4</integer>

        <key>midiData</key>

        <integer>1</integer>

        <key>midiMessageType</key>

        <integer>3</integer>

        <key>output</key>

        <dict>

        <key>controlType</key>

        <string>control</string>

        <key>midiChannel</key>

        <integer>5</integer>

        </dict>

    </dict>
3

Hi @FlatLine, are you aware that there are some MIDI issues with the recent Windows 11 25H2 releases? I would start by downloading the latest release of djay 5.6.4 (updated on April 10, 2026) from the Microsoft Store. If this doesn’t help, please refer to the linked help topic below for some additional workarounds. Thanks!