How Do I Fix Audio and Video Sync Issues in OBS Studio?
Applicable To
- Plugable USB NIX Capture Card
- OBS Studio (Windows, and macOS)
When you use a capture card in OBS Studio, the captured audio often plays slightly ahead of the video. In most cases, adding a sync offset to the audio source fixes this.
Troubleshooting Steps
- Open OBS Studio.
- In the top menu bar, select Edit > Advanced Audio Properties. (You can also open it from the options menu next to any source in the Audio Mixer dock.)
- Find the row for your Audio Input Capture source (usually a unique name you added when adding the Audio Input Capture source).
- In the Sync Offset (ms) column, enter 470 (for some devices the magic number will be between 470–480).
- Close the Advanced Audio Properties window.
- Make a short test recording, such as clapping on camera.
- Play back the recording and check whether the sound matches the picture. If it doesn't, adjust the Sync Offset in small steps and test again.
Expected Result
The audio from your capture card lines up with the video in both the OBS preview and your recordings or stream.
If the Issue Persists
- If the audio starts in sync but drifts apart over time, open Settings > Audio in OBS. Set the Sample Rate to 48 kHz, and make sure your computer's sound settings for the device also use 48 kHz.
- If you still have sync issues, reach out to Plugable support for further help.
