Help needed with MPEG2 to DVD sync problem

[JackBauer]

I have downloaded a 15GB concert recorded in HD (15 x 1GB *.TS files). I used HDTVtoMPEG2 to join the 15 files to create 1 TS file and all the joins are seemless. I then used HDTV2DVD to convert the *.TS files to a single mpeg2 file which comes to just over 7GB. The mpg file has no sync problems at all when played on my pc.

I then author it to DVD with DVDWS2 and about halfway it goes out of sync. The audio seems to get ahead of the video by a second or 2. I have tried other programs like TMPGENC DVD Author, NVE3 but the exact same thing happens with them.

So basically the mpg is in sync, it stays in sync when added to an authoring program and whilst adding chapters it is fine but it is once it has been converted to DVD that the problem occurs.

The VOB file that contains has the start of the sync problem starts playing in sync and goes out towards the end so the whole file isn't effected, just the end and every other VOB files after that one.

Any help or suggestions on how to resolve this would be really appreciated.

Cheers!

[blutach]

and hope you picked a winner yesterday

Demux the VOB with PgcDemux (get it from the VobBlanker site) and remux it with muxman (see link in my signature). Take care with the audio delays when you remux.

Regards

[anonymez]

welcome to the forum

The mpg file has no sync problems at all when played on my pc.

at this point, run it through projectX, it'll demux, outputting elementary streams, and fix any errors. author as usual from there

[JackBauer]

and hope you picked a winner yesterday

Demux the VOB with PgcDemux (get it from the VobBlanker site) and remux it with muxman (see link in my signature). Take care with the audio delays when you remux.

Regards

My horse came in last I think

I downloaded and installed the tools you suggested but I am not sure how to fix the sync with the delay settings in muxman as the whole show isn't out just part of 1 vob that then effects all the ones after it.

Any tips as to how I should be using muxman would be great.

[JackBauer]

welcome to the forum



at this point, run it through projectX, it'll demux, outputting elementary streams, and fix any errors. author as usual from there

Thanks anonymez

I downloaded and installed ProjectX and demuxed my DVD. It created AC3 files for all VOB files and the log sad there was 37 warninigs.

Now, do I just add the AC3 files to DVDWS2 and use them as the audio track?

How will this be any different to the audio already on the DVD?

[blutach]

Just set the proper audio delay in muxman that Pgcemux suggests. It will mux properly. This assumes your elementary streams have correct PTS.

EDIT: Also investigate a prog called DelayCut regarding resyncing audio - also available on jsoto's page - http://jsoto.posunplugged.com/audiotools.htm.

Regards

[JackBauer]

I just ran my DVD through pgcEdit and it created an AC3 and a logfile.

I also clicked the the Check A/V Delay and it said:

Audio_1:0x80-->32msecs

Here is what the logfile says:

[General]
Total Number of PGCs in Titles=1
Total Number of PGCs in Menus=7
Total Number of VobIDs in Titles=1
Total Number of VobIDs in Menus=0
Total Number of Cells in Titles=19
Total Number of Cells in Menus=0
Demuxing Mode=by PGC
Demuxing Domain=Titles
Total Number of Frames=208132
Selected PGC=1
Number of Cells in Selected PGC=19
Selected VOBID=None
Number of Cells in Selected VOB=None
[Demux]
Number of Video Packs=354361
Number of Audio Packs=20397
Number of Subs Packs=0
Number of Nav Packs=1215
Number of Pad Packs=0
Number of Unkn Packs=0
[Audio Streams]
Audio_1=0x80
Audio_2=None
Audio_3=None
Audio_4=None
Audio_5=None
Audio_6=None
Audio_7=None
Audio_8=None
[Audio Delays]
Audio_1=32
[Subs Streams]
Subs_01=None
Subs_02=None
Subs_03=None
Subs_04=None
Subs_05=None
Subs_06=None
Subs_07=None
Subs_08=None
Subs_09=None
Subs_10=None
Subs_11=None
Subs_12=None
Subs_13=None
Subs_14=None
Subs_15=None
Subs_16=None
Subs_17=None
Subs_18=None
Subs_19=None
Subs_20=None
Subs_21=None
Subs_22=None
Subs_23=None
Subs_24=None
Subs_25=None
Subs_26=None
Subs_27=None
Subs_28=None
Subs_29=None
Subs_30=None
Subs_31=None
Subs_32=None


So what do I need to do with muxman?

Cheers!

[blutach]

Add the streams and set the audio delay to 32ms.

Regards

[anonymez]

I downloaded and installed ProjectX and demuxed my DVD. It created AC3 files for all VOB files and the log sad there was 37 warninigs.

i meant for you to run the mpg file at this point:

The mpg file has no sync problems at all when played on my pc.

through projectX; you'll get elementary streams, then author. try blu's method first though; cause could be bad authoring or bad source mpeg ps.

[JackBauer]

Add the streams and set the audio delay to 32ms.

Regards

I think I have configured muxman correctly but when I playback the remuxed files the audio sounds horrible and it is still out of sync.

Is this correct settings to delay it by 32msecs?

[blutach]

Yes. Muxman will remux, and importantly, make all new navpacks, with proper timings. Shouldn't sound "awful" - it's the same AC3 stream you demuxed.

Regards

[JackBauer]

HDTV2DVD created a VIDEO_TS folder and when played on my pc or burnt to disc it stays in sync and has chapters every 10 minutes. Again, when added into my authoring programs it goes out of sync.

So I now have DVD1 that is fully authored with menus and chapters for each song with sync issues and DVD2 that has no menus, chapters every 10 minutes with no sync issues.

Is there anyway I can replace the vob files from DVD1 with the ones from DVD2 and keep all the menus and chapters I have created?

[ed klein]

IFO EDIT can also author video, audio, subtitles, and chapters with or without delay set in.

[JackBauer]

I have replaced the out of sync vob files with the good ones and the menus are working but the chapters are all out of whack.

Is there a way to set the correct chapter times without reauthoring which causes the sync issues.

Cheers!