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OSC keys plugin post
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Rik Berkelder 2025-12-05 02:39:38 +01:00
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content/blogposts/2024-05-04-grandma3-fader-feedback.md
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slug: "grandma3-fader-feedback-2024-05-04"
title: "GrandMA3 Fader Feedback Plugin"
date: "2024-05-04"
modified: "2024-05-04"
modified: "2025-12-05"
description: "A free MA3 LUA plugin to provide per-fader feedback over OSC"
---
You might have used the new OSC features in GrandMA3 to connect a MIDI controller to get some extra faders on your system. In my experience, this works quite smoothly. You then might have wanted to go extra fancy and tried to hook up the OSC that MA3 sends you back to make your motorized faders work, only to find out that, for some reason, it doesn't send feedback per fader, only per sequence, which is difficult to map to physical faders as you move things around.
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It's not the fanciest thing out there. there's no fancy GUIs for your settings, just a couple of variables to tweak and then never think about again. The upside of this is that the plugin is very small and light-weight.
You can download the plugin [over here](https://git.riksolo.com/riksolo/GrandMA3-Plugins/releases).
You can download the plugin (along with any others I've made) [over here](https://git.riksolo.com/RikSolo/GrandMA3-Plugins/releases/tag/latest).
# Installation & Usage
1. Download the plugin from the link above.
@ -35,7 +35,7 @@ You can download the plugin [over here](https://git.riksolo.com/riksolo/GrandMA3
7. Open the plugin back up, select the first (and only) line in the table, and hit the Edit button on the bottom of the window.
8. Change the variables at the top of the plugin to your liking. There are comments above each one to tell you how they work.
9. Now run the plugin.
MA3 should start sending feedback for the executors you configured in the plugin file. The OSC addresses are the same as the ones you would use to send OSC into MA# (using the current page). So, for example, the feedback for fader 202 would be sent to `/Page/Fader/202`.
For faders, the plugin will send a Float value between 0.00 and 1.00. For buttons, a value of 0 or 1 will be sent.