Midi mapping parameters: Bi Directional?

falkTX · August 30, 2022, 8:28am

arguments that start mod-host have changed, if you are on v1.11 you need mod-host hotfix-1.11 branch

AndyCap · August 30, 2022, 8:42am

Hi @falkTX,

Super, thanks for the info.

Andy

AndyCap · August 30, 2022, 9:31am

Hi @falkTX

Out of curiosity what version is the master branch?

Is that the one for 1.12?

Cheers

Andy

AndyCap · August 30, 2022, 10:55am

Hi @falkTX,

I have a working version on the Dwarf now for 1.11 that has bidirectional midi CCs from the ui knobs, snapshot loading and pedalboard loading.

Currently I have one midi_out in mod-host which I am connecting manually via jack_connect mod-host:midi_out mod-midi-broadcaster:in

The next step is to do automatic connections.

I am wondering if you would ever want to merge this code into your mod-host?

If not for me I am happy to just connect the midi_out to the aggregated port or all hardware ports.

If you do want it I am going to have to think of something a bit smarter as really for the separated ports the message should only be going to the originator.

Let me know?

Cheers

Andy

falkTX · August 30, 2022, 11:22am

just open a PR against mod-host project.
hard to say if/when it will be merged, but having it public is the first step for anything.

regarding the auto-connection, you can just use jack_connect function in the C code, with special attention needed for the separated / merged mode.

AndyCap · August 30, 2022, 11:43am

Thanks.

I looked more deeply at the midi stuff, without major changes (multiple midi ins) I can see no way of seeing what the originator was.

So I guess sending the CC to all midi devices is the only way forward. I will add in connections like this.

One question though what is the g_raw_midi_port_list for?

falkTX · August 30, 2022, 1:53pm

for plugins that request raw midi access, typically for handling midi clock internally.
that list is the midi ports to keep track of in case another hw device appears, so mod-host makes the connection automatically

AndyCap · August 30, 2022, 4:11pm

Hi @falkTX

Thanks for the info.

I’m struggling to get my linux setup the same as the dwarf, the in process clients mod-midi-broadcaster and mod-midi-merger are not loading from mod-host or the command line on ubuntu 22:

$ jack_load mod_midi_merger
could not load mod_midi_merger, intclient = 0 status = 0x 1

I have tried the normal /usr/lib/jack install and also /opt/usr/lib/jack, the files are there fine.

I know bugger all about jack and have not found much help on the internet, do you have any ideas?

Cheers

Andy

falkTX · August 30, 2022, 5:51pm

on debian systems, due to multiarch, path is like /usr/lib/x86_64-linux-gnu/jack/

AndyCap · August 30, 2022, 6:10pm

Nice one thanks, will look at that in the morning…

AndyCap · August 31, 2022, 2:26pm

Hi @falkTX

I have added in all the connection stuff seems to work fine on my Dwarf.

github.com/moddevices/mod-host

Hotfix 1.11 midi cc out

moddevices:hotfix-1.11 ← AndrewCapon:hotfix-1.11-midi_cc_out

opened 02:24PM - 31 Aug 22 UTC

AndrewCapon

+203 -11

Adds midi out of CC messages that have been mapped to parameters. This allows… midi controllers to be kept in sync with parameter values (if they support it). Works with UI Knobs, initial mapping, snapshot loading and pedalboard loading. Enabled with the env var ENABLE_MIDI_FEEDBACK ENABLE_MIDI_FEEDBACK = 1 : Enable midi CC feedback ENABLE_MIDI_FEEDBACK = 2 : Enable midi CC feedback and also sync devices on input Tested on ModDwarf with both Aggregated and Separate modes. Tested with USB midi controllers connected directly and over the hardware midi.

Cheers

Andy

AndyCap · October 9, 2022, 11:54am

Added another pr: Midi cc out nrpn by AndrewCapon · Pull Request #62 · moddevices/mod-host · GitHub

Adds NRPNs, also bi directional.

TheRedOne · December 10, 2025, 10:13am

Hi! I’m sorry I couldn’t tell if this hotfix was actually merged into the code. So… Is it available in the Dwarf firmware already? Thanks!

TheRedOne · December 15, 2025, 9:02am

@falkTX, @gianfranco Hi! Three years later I just want to check in with this question, maybe generalize it a bit: is MOD audio going to revert some focus from MOD desktop back to physical devices? There are not only outstanding requests, but (supposedly) working pieces of code in the pull requests that have never been merged.
It’s so frustrating to be one step from having a good thing made into a great thing and not seeing in happening for years (my first marriage doesn’t count, looking back, it was doomed from day 1).
If I’m not mistaken, I think I saw the message that MOD went open source. I’m not sure to what parts of the MOD portfolio that open source approach was/is applicable, but I would expect more attention to the suggested solutions to the firmware.
I understand the lack of resources (@falkTX you often say you’re the only developer in the company), but even more so I would expect you guys paying attention to whatever help offered by the community.

I wouldn’t even mention ControlChain idea, this was buried long time ago, I guess bu now nobody wants to dig this out. Help us at least to implement the workarounds that we’re suggesting.

I’m sorry I’m letting my frustration out, but I kinda invested my own time and resources into the periferals to my MOD Dwarf that I’m not getting the full value from.

AndyCap · December 15, 2025, 10:07am

Sorry missed this message, it was never merged unfortunately.

TheRedOne · December 15, 2025, 10:38am

I think you’ve answered in a different thread, but thanks anyway.

AndyCap · December 15, 2025, 10:52am

Ah, my memories not good