Fix OBS Audio and Video Sync

Written by the ProjectOBS Editorial Team · Published and reviewed: September 25, 2026

Measure and correct consistent microphone, camera, or capture-card delay.

Recommended starting point

Use sync offset only for repeatable delay; variable drift usually indicates a device, sample-rate, or performance problem.

Before changing settings

• Update OBS Studio and the relevant Windows graphics or audio driver.
• Duplicate the current OBS profile so the working configuration remains available.
• Use a representative scene and change one variable at a time.

Step-by-step test

1. Open OBS Statistics and reset its counters.
2. Reproduce the busiest part of the real recording or stream.
3. Run the test for at least ten minutes.
4. Check rendering lag, encoding lag, dropped frames, audio meters, and the saved output.
5. Record the setting and result before making another change.

How to verify the result

Record a visible clap test and inspect several points in a longer file.

Common mistakes

• Copying settings designed for different hardware or a different streaming platform.
• Testing only a static scene instead of the most demanding content.
• Changing resolution, frame rate, encoder, and bitrate simultaneously.
• Ignoring the OBS log and Statistics window.

Related guidance

Use the guides hub, settings overview, and troubleshooting hub to continue.

Sources

Reviewed against the official OBS Knowledge Base, release notes, and the official support forum.

Download OBS Studio for Windows