If the audio you've edited is out of sync, try [Encoding mode], re-open a video after processing through [High-speed mode], or check the "Save video information (moov) at the beginning of the file (MP4 only)" option.
If you use [Encoding mode] instead of [High-speed mode], the sync problem will not occur in most cases.
If the index information of the video is corrupted/damaged, the sync problem may occur. In this case, open the original video, click the "Start" button without selecting the cutting area, and then "import the video file from the output folder" after processing through [High-speed mode].
If you have an audio sync issue when streaming a video, check the "Save video information (moov) at the beginning of the file (MP4 only)" option and change the FPS value to '30' and try again.
If the above method does not solve the audio sync problem, please send a link to the original video files to bandicut@bandicam.com » Free storage services