Why is the video and audio out of sync after compression?

The video and audio might be out of sync after compression due to various reasons. To address this issue in UniConverter, you can follow these steps:

Check if the original video is in sync with the audio on the program preview window.
Disable the "Enable Ultra-fast Speed" option on Windows PC or Mac if enabled.
If the problem persists, contact us with the following information:
- Source file
- Output file
- Log file
- Parameter settings of conversion.

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