KVR Audio

camsr · Post by **camsr** » Wed Jan 21, 2015 5:09 am

I tried doing this in Reaktor, only attempting to route the note pitch of a channel info module to the velocity of another channel info to filter for another synth. It's not working how I would expect it to.
Is there a plugin that does this instead? It should just be able to apply the note value as the velocity, and work as expected...
I looked on pizmidi site and it doesn't look like it. I already have midinotesToCC, could CC be used as velocity? It has to be velocity.

AndreasD · Post by **AndreasD** » Thu Jan 22, 2015 9:46 pm

Mutools MUX can do this.
There is a note to modulation module that gives the note number as modulation data. From there you can route this to anywhere in a MUX or via a parameter event generator to any VST parameter.

camsr · Post by **camsr** » Fri Jan 23, 2015 12:19 am

No, I need the velocity to act as normal, as midi.
Not sure if it's a problem with reaktor per se, but the synth I am using after it is hanging notes, like the note off never arrives. And new note ons do not respond reliably, they just get ignored or eventually work

hivkorn · Post by **hivkorn** » Wed Feb 04, 2015 11:05 am

i am work on the same problem and i found this:

http://www.native-instruments.com/fr/su ... generator/

i will try and let you know if i found the way to release it ( i work on a simple drums sequencer for external hardware and plugin)

nix808 · Post by **nix808** » Sat Feb 21, 2015 5:12 am

Hey Cam,
could you use a VST to do this?
I can help you build one in FlowStone if needed.
MIDI works reliably when connection order is correct,
also complex MIDI tasks are feasible in Ruby code

aciddose · Post by **aciddose** » Sat Feb 21, 2015 5:48 am

So you want:

- Take notes on input, send them to output
- The velocity of notes you output equals the note number
- The note is output as input

Is that correct? I can write a VST to do this in a few minutes.

Basically:

Copy the events pointer to a new buffer in processEvents()
In process(), loop through the new events buffer and over-write any note-on velocity value with the value of the key associated with the event
Return the events buffer to the MIDI output of the plugin

camsr · Post by **camsr** » Sat Feb 21, 2015 12:59 pm

Yeah that's it. It's to control a synth using velocity modulation as a keytrack instead.

camsr · Post by **camsr** » Sat Feb 21, 2015 1:03 pm

nix808 wrote: I can help you build one in FlowStone if needed.

Thanks, I attempted to use it but I am a little put off by synthmaker for it's memory management 'strategy', and the MIDI part needs to use that

So sure, send me a PM.

aciddose · Post by **aciddose** » Sun Feb 22, 2015 12:45 am

http://xhip.net/temp/key%20to%20velo.zip

Includes source-code, although my implementation of the vst interface reuses many of the same function/variable/object names, I've quite some time ago given up on maintaining compatibility with the official SDK because I'm the only one using it and also there are not going to be any more official releases, making it doubly pointless to maintain compatibility.

Also I've used some other bits of my own lib code which should be easy enough to implement for any real coder, although this is certainly not a copy-paste and compile sort of thing. I've only included the source just to make clear exactly how easy this is to do.

Both 32-bit and 64-bit versions, let me know if it burns your house down and I'll see if I can fix my fuckups.

camsr · Post by **camsr** » Sun Feb 22, 2015 1:17 am

It works perfectly! I knew it was easy, but I didn't know it was that easy

Midi note to velocity