Hi, I am fairly new to avidemux and I am trying to join some mp4 files together using the append function. However when I open the mp4 file in Avidemux it is out of sync. The noise plays too soon compared to the actions.
I don't understand why I have this problem only when opening the file in Avidemux because it's fine in VLC media player.
The video is a H264 file and audio is .mp3 if that helps. Frame rate 30.
Edit: Upon further tests the problem lies with stopping and starting the video. When i hit play it is fine for the first 5 seconds no matter where I am in the video but the sound races ahead of the video eventually. I am thinking it has something to do with the FPS of my video maybe. It should be 30 and it shows as 30 when i hit the "i" button.
Thanks
Check your fps with Mediainfo to be sure first.