Audio and video are out of sync after conversion
Follow the steps below to check where the desync occurs and how to resolve it.
Before changing any settings:
If audio and video are not synchronized after conversion, the issue may occur either:
This helps determine whether the issue occurs during conversion or is already present in the source file.
This usually indicates an issue related to hardware acceleration or output format settings.
If the issue persists:
Using widely supported codecs may improve stability.
If the desync appears in the program preview before conversion, the issue may be related to:
If the converted file is out of sync in one player but not in others, the issue may be related to playback compatibility rather than conversion.
Test the file in a different media player to confirm.
Contact Movavi Customer Service if:
Include:
What to do
If the issue appears only in one media player
Windows
macOS
Case 1: The original file is in sync, but the converted file is not
Start here
Windows
macOS
Step 1: Disable hardware acceleration
When to contact Movavi Customer Service
Step 2: Change output format or codecs
Case 2: The original file is already out of sync in preview
- only in the converted file
- already in the program preview before conversion.
- Play the converted file in another media player (for example, VLC).
- Check whether the original file is in sync in the program preview.
- Open the program settings.
- Go to Preferences → Acceleration.
- Disable Intel, NVIDIA, or other hardware acceleration options (if enabled).
- Restart the program.
- Convert the file again and check synchronization.
- Open the output format settings.
- Click the Settings (cogwheel) button.
- Select different video and audio codecs. For example .mp4, set Video Codec to MPEG-4, and Audio Codec to MP3, or AAC.
- Apply the changes.
- Convert the file again and check sync in the new output file.
- Proceed to Step 2 straight away.
- the source file itself
- system performance
- outdated drivers (Windows).
- Update your graphics drivers.
- Restart the computer after updating.
- Reopen the program and test again.
- Close unnecessary applications.
- Make sure system resources are not heavily used.
- Restart the Mac and test again.
- the original file is in sync
- hardware acceleration is disabled
- different codecs were tested
- the issue persists after completing all steps above
- your operating system (Windows or macOS)
- the output format used
- whether acceleration was enabled
- confirmation of whether the original file is in sync
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