Configure Custom Video Delay in OBS Studio

This guide provides a step-by-step walkthrough on how to set up a custom video delay for an individual source in OBS Studio using the built-in Render Delay filter. You will learn how to access the filter settings, apply the correct delay duration in milliseconds, and manage hardware limitations to ensure your video and audio feeds are perfectly synchronized.

Step-by-Step Guide to Applying Render Delay

To delay a specific video source in OBS Studio, follow these steps:

1. Select the Source: Open OBS Studio and locate the Sources dock. Right-click on the specific video source (such as a webcam or capture card) that you want to delay, then select Filters.
2. Add the Render Delay Filter: In the Filters window, locate the Effect Filters section at the bottom left. Click the + (plus) icon and select Render Delay from the dropdown menu.
3. Name the Filter: Enter a name for the filter (e.g., “Webcam Delay”) and click OK.
4. Adjust the Delay Value: In the filter properties on the right, enter your desired delay time in milliseconds (ms). For reference, 1000 milliseconds equals 1 second.
5. Close and Save: Click Close to apply the filter. The video source will now render with the specified delay.

Hardware Considerations and Limitations

When using the Render Delay filter, keep the following technical factors in mind:

• GPU Memory Usage: The Render Delay filter stores video frames in your graphics card (GPU) memory. Setting a high delay on high-resolution sources (like 4K at 60 FPS) will consume significant VRAM.
• Maximum Delay Limit: OBS Studio caps the Render Delay filter at a maximum of 500 milliseconds (0.5 seconds) per filter instance to prevent system instability.
• Stacking Filters: If you require a delay longer than 500ms, you can add multiple Render Delay filters to the same source. For example, applying two 500ms filters will create a total delay of 1000ms (1 second). However, monitor your system’s GPU utilization to avoid dropped frames.