MIDI-to-Trigger Patch – Note Off Issue & Velocity Handling Help Needed

OWL Magus
#1

Use USB to send MIDI notes and trigger all eight outputs of your Magus, to trigger a Drum Module.

Unfortunately, I’m still struggling with the Pure Data Patch: Note Off messages currently trigger the output as well, instead of being “ignored”.

I also need help to implement a reliable method for handling accurate velocity data.

Every help is appreciated!

You can see the Patch here:
https://www.rebeltech.org/patch-library/patch/MagusCVTrigger#About

#2

Use [stripnote] to filter note-off messages.
2025-11-19_14-04

#3

Thank you so much for the fast reply!

I tried using [stripnote] before and attempted to implement it again today. However, I remember reading somewhere that this object is not supported. When I compile the patch, I get the following error:

  1. e[91mErrore[0m pd2hv: _main.pd in “_main.pd” @ (x:0, y:0): Don’t know how to parse object “stripnote”. Is it an object supported by Heavy? Is it an abstraction? Have the search paths been correctly configured?
  2. e[91mErrore[0m pd2hv: _main.pd in “_main.pd” @ (x:0, y:0): There was an error while connecting two objects. Have all objects been correctly instantiated? Have all inlets and outlets been declared?
#4

Oh right, the online compiler hosted by RebelTech is very old and doesn’t support it.

If you use plugdata there are a number additionally supported objects, features and bugfixes.

It’s not a very complicated abstraction though, you could include this: https://github.com/Wasted-Audio/hvcc/blob/develop/hvcc/interpreters/pd2hv/libs/pd/stripnote.pd