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MIDI Automation Plugin by Austen
MIDI-Transformer by Austen is a Virtual Effect Audio Plugin for Windows. It functions as a VST 3 Plugin.
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Open Source
Important Note
Tested only on Windows, but should theoretically run on other OS's as well.
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30-Day: 28; 7-Day: 31; Yesterday: 125

MIDI-Transformer is a simple VST plugin that allows you to transform and reroute incoming MIDI signals.


To use the plugin, place it somewhere in your VST chain and select an input source from the top-left dropdown, as well as an output destination from the top-right dropdown.

During playback, the plugin works as follows:

  1. Reads incoming MIDI values from the selected input source.
  2. Transforms those values using the specified transformation curve.
  3. Outputs the transformed values according to the selected output destination.

For example, if the input source was set to CC2 and the output source was set to CC3, the plugin would read all incoming CC2 values, transform them, and then output the transformed values as CC3 messages.

The plugin's GUI will show a vertical line along the curve to indicate the last input value that was captured, and how it was transformed.

Editing the curve

  • Move a node by clicking and dragging.
  • Add a node by double clicking anywhere along the curve.
  • Delete a node by right clicking on it.
  • Change a node's curve type by double clicking on it.
    This will cycle between the three curve types:
    • Linear (default).
    • Quadratic
    • Cubic

When a node's curve type is set to Quadratic, it will have one attached handle. When set to Cubic, it will have two attached handles. Moving these handles around allows you to modify the shape of the curve more precisely.


The plugin's state will be saved and managed automatically by the DAW. There is currently no built-in preset manager.

Latest User Reviews

Average user rating of 4.00 from 1 review

Reviewed By blatanville
October 15th, 2021

nice, compact little plugin that does one thing and does it well.
during my brief time testing this plug, I found putting a curve on your pitchbender's response is a quick and easy way to add so some interesting variation to bends. You could do some arbitrarily odd curves to really mess with your bend, or some simple quadratic curves to change the amount of bend applied to make the bender less effective at minimal deviation from center, or the other way around and make the bender taper off in effectiveness as you reach maximum throw.

Response from DNAdisaster from Austen on October 16th, 2021

Thanks so much for checking it out, and I'm glad it proved useful for you! Feel free to reach out if you have any suggestions or desired features you'd like to see in the next revision :-).

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