Can't see any MIDI CC or pitchbend MIDI input in VST3 plugin?

General JUCE discussion
1

I followed a tutorial to build a simple JUCE MIDI VST3 plugin that transposes the incoming MIDI. I have this

    MidiMessage currentMessage;
    int samplePos;

    while (it.getNextEvent(currentMessage, samplePos)) {
        DBG(currentMessage.getDescription());
    }

…but no MIDI CCs / pitchbend / anything other than Note on and Note offs are being printed or responded to. I have been scratching my head for hours - is there something I am missing or have done something dumb?

2

Did you post the whole code? You need to increment the samplePos.

4

That’s not extacly true, even though you can’t get MIDI CC out of a JUCE plugin, you can certainly get it into a plugin and output notes.
The above code looks correct, but I can’t tell what the problem is.

I have a working example of a transpose VST3 plugin here:

5

@eyalamir It is your example that I was running :slight_smile:. Just to be extra extra sure, I re-cloned your repo and ran the whole thing again; same result:

VST3 exhibits no pitchbend / mod / CC as input (as seen (or not seen) by logger). (It only logs NoteOn, NoteOff)

AU does work, however…! (NoteOn/NoteOff/Pitch/CC/Mod)

Any thoughts?

Projucer + JUCE 5.4.7
IDE: AppCode (or XCode)
DAW: Ableton Live 10.1.9

Thanks for your help! (And your repo :))

6

Do you have other VST3 plugins that have working pitchbend/mod/CC input in Ableton?

7

Are you using the latest VST 3 SDK? There has been some changes regarding MIDI recently, if I recall correctly.

8

Do you have other VST3 plugins that have working pitchbend/mod/CC input in Ableton?

Yes, they do.

9

Hmm I haven’t manually installed VST3 SDK; i’m assuming the one that’s included within the JUCE dir is the one being used - which I again I assume is the latest VST3 SDK version (3.6.13 or 3.6.14)

10

Alright, so I just tested that example and it’s indeed faulty in Ableton Live and does not accept MIDI CC.
To fix it, all you have to is to add the “Is A Synth” flag in the Projucer and resave. I’ve updated the git repo with that information.

No need to manually install the VST SDK, etc.

2 Likes
11

That fixed it, thank you!