If the recorded video and audio are not synchronized, the issue may occur during recording or after saving the file. This article explains how to identify where the desync appears and what you can do to fix it.

Follow the steps below in order.

Start here

First, check when the desync occurs:

• the video and audio are in sync in the preview, but out of sync in the saved file
• the video and audio are already out of sync in the preview after recording stops.

• The next steps depend on this.

This usually indicates an output format, codec, or acceleration issue.

Case 2: Audio and video are already out of sync in the preview

This means the desync occurred during recording, not during saving.

Reduce recording load

Screen recording requires system resources. If too many apps are running, audio and video may not be captured evenly.
What to do:

• Close unnecessary applications.
• Close extra browser tabs if recording from a browser.
• Avoid running resource-intensive apps during recording.

Adjust recording settings

macOS-specific notes

On macOS, desync may also be influenced by:

• browser choice when recording online content
• background apps consuming system resources.

What to try:

• Change the browser used for recording.
• Close unnecessary apps.
• Enable Scale Down Retina Resolution under Settings → Video.
• Keep the frame rate set to 25 FPS.
• Record a short test clip again.