> For the complete documentation index, see [llms.txt](https://docs.openbrush.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrush.app/user-guide/make-moving-creations-using-audio-reactive-brushes.md).

# Make moving creations using audio reactive brushes

Some brushes are labelled audio reactive. Their colour, shape or motion responds to audio captured by Open Brush.

![](https://3738774261-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Mikdwm98p33AibfiSqN%2Fuploads%2Fgit-blob-e391f8a60d1e7fd492761514e06f263b6931059a%2Fimage-060.png?alt=media)

## Desktop workflow

1. Begin playing audio from your computer desktop.
2. On the Brushes panel, select the wavy audio-reactive button.
3. You will see a message that Open Brush is listening for audio.
4. Once audio is detected, draw with an audio-reactive brush.

Desktop builds listen to the computer's current audio output. If no source is detected, start playback before enabling audio-reactive mode and check that the intended Windows output device is active.

## Quest and other standalone headsets

Standalone builds react to audio playing inside Open Brush rather than audio from another app:

1. Copy an MP4 or another supported video containing an audio track to `Documents/Open Brush/Media Library/Videos` on the headset.
2. Add the video from **Extras > Local Media Library > Local Videos**.
3. Make sure the video's volume is above zero and start playback.
4. Enable the audio-reactive button on the Brushes panel and draw with an audio-reactive brush.

Different brushes react in different ways, including pulsing, changing brightness and moving their geometry. The audio affects the live rendering; it does not alter the underlying stroke control points.


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