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View Full Version : Problem muxing in AC3 to HD .TS


oddball
22nd October 2006, 18:14
I'm trying to mux in a 5.1 AC3 stream into a .TS file. The original audio was 2.0 AC3 so I demuxed the video leaving a .m2v file and the new AC3 5.1 to mux together. However the audio is out of sync by +2500ms. I used Avidemux to shift it by -2500ms and saved it.

Unfortunately I end up with an undersized file and the audio drops out at exactly 1 hour 11 minutes and 34 seconds. I tried saving an A-B section from the point it drops out and the second segment also drops out at exactly 1 hour 11 minutes and 34 seconds.

I tried Womble MPEG2VCR but it does not seem to allow resyncing of AC3. It has no effect on the audio sync whatsoever.

If I save segments in Avidemux and try to join them back together using TS Splitter it won't playback the full length of the movie.

I've tried Avidemux 2.2 preview 2 and 2.3 preview 2.

Any suggestions?

EDIT: One a similar note: If I save the movie in segments using tha A-M marker method. One each successive segment should the next A marker be where the last B marker is or should the next A marker be on the next keyframe? I am trying to avoid duplicate portions if I decide to join the parts together again at some point in the future.

SeeMoreDigital
22nd October 2006, 20:01
Why do you want to mux into .TS?

MPEG Multiplexer is able to mux .M2V and "manually entered" .AC3 streams into .MPG as a program stream ;)

oddball
22nd October 2006, 20:18
I tried that. I ended up with a file that again would play with no audio at all. I think Avidemux has some bugs.

SeeMoreDigital
22nd October 2006, 20:34
I tried that. I ended up with a file that again would play with no audio at all. I think Avidemux has some bugs.Hmmm!

"Sounds" like you did not factor in the "Forced Mux Rate": -

http://img419.imageshack.us/img419/346/snap1sv0.png


Cheers

oddball
22nd October 2006, 22:55
What am I looking at there? Is that in Avidemux?

Pookie
23rd October 2006, 07:10
http://82.10.220.174/Uploaded_Files/Doom9_Forum_files/MPEG_Multiplexer_(v1.0).7z