DSP Robotics Support

I have been scratching my head about this for a couple of days but with no luck, perhaps there is someone here who is a better puzzle solver than me

What I would like is to modulate a mono target from a polyphonic source. Lets say I play a few notes with different velocities, and I want the velocity to change something mono only. What will happen? I checked in a lot of different synths, and what they seem to be doing is they take the value from the most recently pressed key. I posted an image to show you what I mean, it takes the most recent poly velocity value and holds it until the next and sends it to blue mono out. I tried to somehow create a comparison to the last pressed channel Id, and get the value from that id which matches, sounds simple but with FlowStones own voice management it becomes a real nasty thing to do.

Since you cant really do different velocities on the computer keyboard, I simply connected the pitch instead so we can see different values.

Any ideas is appreciated!

not sure can be use a MIDI module and from there take last pressed key?

I was also thinking something along those lines but couldnt manage.

again not sure my english is not good. this is it?

Hmm, kind of, but I only used the velocity as an easy example, I would need to have it in stream version, so I can extract all kinds of useful stuff, keytracking, lfos and whatnot using the last channel id with the last key pressed. But thank you for the effort!