Before changing OBS audio sync, make a visible clap or key press and determine whether the offset is fixed from start to finish or grows over time. Write down the exact error, affected device or app, and when it occurs; retest that same symptom after each change. Keep the model, version, and last successful state available for official support.
2
Match the repair to the symptom
A fixed offset can use Sync Offset; growing drift instead suggests sample-rate, capture-device, clock, or performance trouble.
3
Create a sync test
Record a visible clap or key press with each relevant audio source and avoid judging from Bluetooth monitoring alone.
Determine whether the sound arrives before or after the picture and estimate the consistent difference in milliseconds.
5
Set a small offset
Open Advanced Audio Properties and change Sync Offset for the affected source in small increments; offset delays that audio source.
6
Record and verify again
Make a fresh test through the actual recording or streaming path and check the start, middle, and end for drift as well as fixed offset.
7
Retest the original symptom
Fresh recordings at the beginning, middle, and end show speech or game sound aligned with the visible event.
8
Troubleshoot OBS audio sync
If the sign of the offset was reversed, only monitoring sounds late, or synchronization worsens gradually during a long recording, stop broad resets and return to the last known state. Capture the exact error, versions, account or device scope, and the failed step before using the official support channel.
Video walkthrough
ⓘ Sources and verification
Checked against official documentation on . Scope: Windows.
Follow the linked first-party guidance if labels differ after a platform or app update.
