Keyboard Modifier

Updated: 19 Sep 2025

Detects keyboard key press and generates an output.

Method #

This node detects keyboard key presses of a specified key and generates an output for modifiers. It is useful for making quick button inputs to test effects when more advanced input options like OSC or MIDI are not convenient, but be aware of the following caveats:

The Keyboard modifier node only works in Builder and in Standalone executables. When in Builder, the play-head must be playing and the viewport window must be selected by clicking on it.

When in Builder, this node will cannot respond to keys that are used in Keyboard Shortcuts, severely limiting the keys available to use. These keys will however work when you export your project as a standalone application.

This node does not function when a Notch Block is loaded in media servers, as they capture all keyboard inputs.

The output is a numeric value that acts upon a connected parameter input of another node, using the operation method selected.

Parameters

Attributes

These properties control the core behaviours of the node.

Parameter	Details
Key	Which key to detect.
Scale	Adjust the scale/range of the modifier.
Attack	How quickly the output reaches its peak.
Decay	How slowly the output moves back to its resting position.
Operation	What operation is done to the modified attribute. Add : adds the current value to where its input. Subtract : subtracts the current value to where its input. Multiply : multiplies the current value to where its input. Replace : replace the value where its input by the current value.
Behaviour	Choose whether the key needs to be held down, or is toggle-able.

Inputs

Name	Description	Typical Input
Blend Amount	How much the output value should affect the original value.	Value