I have a consistent audio sync error after encoding MPEG to MP4/MKV video files using MeGUI.X264 encoding using the latest versions available. I am trying to encode a 25 fps PAL movie with 720x576 frame size and AC3 audio as a source to produce either MP4 or MKV output of similar dimensions but with AAC encoding.
As the encoded MP4/MKV movie plays, the audio gets increasingly out of sync with the video. At the start the movie is in sync but, after 90 minutes or so, the audio is 0.25 seconds ahead of the video making the movie unwatchable.
Note: I am using X264 encoding with fairly standard settings and Nero AAC for sound encoding.
I get the same results on two different computers and three different MPEG video sources.
I have tried removing an reinstalling MeGUI and also using both the Stable and Development threads all with the similar out of sync results.
As far as I am concerned this is a major error as it has put a total stop to all my video encoding for the moment.
I haven't any clue what could be wrong or how to fix this - any advice or assistance would be much appreciated.
BTW: I have done some testing myself to see if I can find out why this problem is occurring. The following test results does shed some light on this problem though: If I take the MP2 audio stream demuxed from the original MPEG movie and mux this together with a newly encoded .264 video then the movie IS STILL out of sync as with the final MP4/MKV version. That is, an untouched audio file does not sync any better with the recently encoded .264 file than the .aac version. This indicates to me that the problem is NOT with the audio encoding process but rather with the X264 encoder itself.
As the encoded MP4/MKV movie plays, the audio gets increasingly out of sync with the video. At the start the movie is in sync but, after 90 minutes or so, the audio is 0.25 seconds ahead of the video making the movie unwatchable.
Note: I am using X264 encoding with fairly standard settings and Nero AAC for sound encoding.
I get the same results on two different computers and three different MPEG video sources.
I have tried removing an reinstalling MeGUI and also using both the Stable and Development threads all with the similar out of sync results.
As far as I am concerned this is a major error as it has put a total stop to all my video encoding for the moment.
I haven't any clue what could be wrong or how to fix this - any advice or assistance would be much appreciated.
BTW: I have done some testing myself to see if I can find out why this problem is occurring. The following test results does shed some light on this problem though: If I take the MP2 audio stream demuxed from the original MPEG movie and mux this together with a newly encoded .264 video then the movie IS STILL out of sync as with the final MP4/MKV version. That is, an untouched audio file does not sync any better with the recently encoded .264 file than the .aac version. This indicates to me that the problem is NOT with the audio encoding process but rather with the X264 encoder itself.