Converting MTs/H264 to MP4 Audio sync issues

[Wraith]

hi

I'm in the process of converting my Matrix edit to MP4 and I've used, Corelly Video studio pro versions 5,6 and 7, Ulead video studio 4, AVS4YOU, DVD/BD FAB versions 8 and 9, Blu Ray Ripper and tried native renders of a 20GB in sync MPEG....every attempt results in parts of the edit being out of sync...NOT ALL of it...and not even consistently wrong either (damn strange). Sometimes a coupld of frames out of sync for a few minutes, then ok again...sometimes more than a second out for a few minues, and back in sync again.

I have no frigging idea what in the hell is going on or how to get a stable correctly synced file. Ive googled and not come up with an answer. I even tried using a quicktime conversion setting key frames every 12 frames...nothing.

Has anyone had a similar issue, and if not what software should I use...? If you had a similar issue, how did you resolve it?

Many thanks indeed...

WRAITH

ps using an 8 core, 3.8ghz, 12gb RAM custom system PC BASED Windows 7 (please dont tell me to buy a MAC....you would sound like my son LOL)

 

[Neglify]

Best program to use is Handbrake. You can make an .h264 MKV or M4V. If you absolutely need an MP4 container, use Handbrake to make an M4V then use Yamb to mux it into an MP4 without conversion.

http://handbrake.fr/
http://yamb.unite-video.com/

 

[Wraith]

The...

 

[TV's Frink]

The...

...end?

 

[Wraith]

Kindle fire is a friggin nightmare if you don't lift your finger off the glass sufficiently ...auto correct on steroids..
Thx=the.....

 

[Captain Khajiit]

Wraith, are you rendering a lossless AVI from your NLE? The programs you mentioned make it sound as if you're not.

Try to render your video as a lossless AVI and your audio as a stereo WAV. See if everything's in sync by making a simple AviSynth script, opening it in VirtualDub, and playing it. (Putting the AVI, the WAV, and the script in the same directory makes things easier.)

video=AviSource("[B]whatever[/B].avi")#Change the word in bold to the file-name.
audio=WavSource("[B]whatever[/B].wav")#Change the word in bold to the file-name.
AudioDub(video,audio)

If it is, use the command-line (or MeGUI if you prefer GUIs) to make your MP4. If it's not, the problem lies with your NLE, and you should examine your timeline and project settings.