Exporting to mp4 desyncs the sound...

Richard-Merriman wrote on 12/23/2024, 1:10 PM

When the edited video plays in movie studio 2023 platinum the sound is perfect. After I export to mp4 and it plays in windows media player, the sound is behind by several seconds. This just started. It worked fine last time. The video import is a cell phone video with sound. I only put a intro music and title text. My first time doing intro music.

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johnebaker wrote on 12/24/2024, 2:31 AM

@Richard-Merriman

Hi

. . . . The video import is a cell phone video with sound. . . . .

The most common cause of the issue is not the program or export, but the cell phone video being Variable Frame Rate (VFR).

Many video editors do not handle VFR video correctly.

The video needs converting before importing to Constant Frame rate (CFR) using a converter such as Handbrake or AviDemux.

See @AAProds tutorial here on how to do this with AviDemux

John EB
Forum Moderator

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Richard-Merriman wrote on 12/24/2024, 3:21 AM

I changed the output frame rate from 29.8-ish to 30 fps, and it fixed it.