How to change Midi CC to aftertouch in midi machine

1

I don’t want to use the aftertouch option (using velocity) but use an expression-pedal to control aftertouch in an addressed synth.
In some DAWs I can do that with a midi-transformer but not in all. So I would like to do that in MidiGuitar to be independent from DAWs or standalone-synth.

I did this so far but no result:
function OnNote(channel, pitch, velocity)
– for any note played, send out the exact same note
Note(channel, pitch, velocity)
end

function OnControl(channel, cc, value)
– Control(2, 20, value) --this works when I move the expression pedal
AfterTouch(channel, 60, value) --this does not send out aftertouch when I move the expression pedal
end

function OnFrame(notes)
end

function OnStart(info)
– assign a description to be displayed in the header
info.description = “transforms midi CC to aftertouch”
end

2

you may need to swtich the aftertouch on in the interface. and block this original aftertouch…

3

The idea is to convert cc to aftertouch.
The aftertouch option in the interface converts velocity to aftertouch as I understand it.
There is a midi-machine example of converting aftertouch to cc, so I thought it would be possible the other way around.
But I seems not to work the way I scripted it. I also tried with enabled aftertouch option in the interface.
I thought if I send AfterTouch(channel, 60, value) I would just do that.

4

it kind of works this way with pitchbend, so I thought maybe would this also work with aftertouch. I have indeed never wanted to convert from cc to aftertouch ( I actually added the aftertouch2cc at the time)
Maybe try to echo the existing OnAftertouch data first, and try mod that. I never tested the aftertouch() function…

5

I think it could be a good feature.
I played around with Arturia Analog Lab V presets. A lot of them have cool aftertouch settings.
To have this controlled with MG2/aftertouch = velocity is confusing as there are also parameters assigned to velocity on those presets.
Therefore to have a pedal sending CC11 being converted to aftertouch would separate velocity from aftertouch.
The aftertouch() is mentioned in the “Demo Script.lua” so I guess it is supported.
Thanks for your reply.

6

I found this page:
https://www.jamorigin.com/products/midi-machine/
Here it says that the aftertouch functions are not implemented yet.
Is this still true?
Why is it in the “Demo Script.lua” ?

7

I dont know, I made that demo script spontaneously, I never checked the function aftertouch() because nobody asked for it at that time. I was workign for JO at that time, I quit in oktober 2020. The midi-machine web page was never complete (and I wasnt the web editor), so I auctually didnt look there at all.