2 months on and still no solution. Major techie needed.....

[CFCboy]

Ok, ive searched through almost every page in these forums and I havnt been able to figure out where I am going wrong (maybe its me!)

I have various avi files (Crossroads, Blade2) that I am trying to convert into a mpg so I can burn onto cd and run on my standalone dvd player. I seem to be having major problems when encoding, the main (and only) problem seems to be the way out of sync audio.

I have tried the following:

Standard conversion in TMPGEnc
Virtual dub wav extraction then TMPGEnc encoding

Neither works... both avi files seem to be about 2/3 seconds out of sync.

File details:[
b]Crossroads:[/b]

Video Stream:
Frame size - 592x320, 23,976fps
# of frames (time)- 134252 (1:33:19)
Decompressor-Divx 5.0.2 Codec
Number of key frames-1062
Min/avg/max/total key frame size-936/15853/66556 (16443k)
Min/avg/max/total delta frame size-0/4501/77646 (585479k)

Audio Stream:
Sampling- 48000Hz
Channnels- 2 (stereo)
Sample precision- 0-bit
Compression- Fraunhofer IIS MPEG Layer-3 Codec
Preload Skew- 384 samples (0.01s)
# of frames- 233294
Min/avg/max/total frame size- 384/445/576 (101473k)

When I load tha avi I get the message:

Virtualdub has detected an improper VBR audio encoding in the source AVI file and ............ .This may intoduce up to 11612ms of skew from the video stream ...... (birate: 148.5 - 16.7kbps)


Can someone please take me under their wing and please guide me on sorting thist.....?

[KCMagoo]

I have the same problems with the movie Shrek and haven't been able to correct it. Virtualdub gives the same message. I've since moved on and converted about 15 other movies succesfully. Even the ones Vdub gives the error message on work. I just convert to uncompressed wave, 44100 and encode with TMPGEnc and they all work except that one movie.

[*bahlpunk*]

OK WHEN YOU GO TO VIRTUAL DUB AND LOAD THE VIDEO FILE IT GIVES YOU THAT ERROR MESSAGE OR WHAT NOT. GO TO AUDIO SET TO FULL PROCESSING MODE THEN SAVE WAV (NAME IT SOME THING YOULL REMEMBER AND PUT IT IN THE SAME FILE AS THE MOVIE....IT MAKES IT EASIER THAT WAY) OPEN TMPEG AND LOAD THE VIDEO...EVEN THOUGH THE AUDIO SOURCE IS ALREADY THERE CHANGE IT BY PRESSING BROWSE AND ENTER THE WAV FILE YOU CREATED. IF YOU NEED TO CUT IN HALF USE SOURCE RANGE.

THIS IS FOOL PROOF IT SHOULD COME OUT FINE AS LONG AS THE AUDIO IS IN SYNC ON YOUR ORIGINAL COPY

OH YA BY THE WAY TEST TO MAKE SURE ITS IN SYNC ABOUT 10 MINUTES INTO ENCODING. JUST STOP AND CHECK. ITS MUCH BETTER THAN WAITING 18 HOURS OR WHATEVER YOU WAITED TO FIND OUT IT WAS ALL OUT A SYNC.

TRY AND REPLY

GODD LUCK

[Donny661]

If the a/v is out of synch in your original through the whole movie you can, in tmpg, correct the audio gap by double clicking on the source range filter under the advanced tab of the settings menu. Near the bottom of the window there is an audio gap correct option. Play around with the numbers and try to get the audio in synch. Use positive numbers if audio is before video and negative if audio is after corresponding point in video (I'm not sure if the positive and negative thing is right but try it out to see).
If the a/v gradually becomes out of synch you have to get an advanced audio editor and epand or compress the audio which is something I have not even tried to tackle. I'd suggest getting another copy of the movie with audio in synch

[CFCboy]

Ok, I think I may have sorted the out of sync problem. ..

In vdub I obtained the fps from the file information (23,976). Fired up TMPGEnc and tried encoding in differant templates to see if I could sort the problem. The VCD NTSCFilm seemed to do the trick (fps matched that of my file 23,976) and no more out of audio sync.

New problem! The film seems very blocky, used maximum settings and this doesnt seem to sort it.

Can someone tell me this? How come I have to use VCD to stop the audio sync and why can I not use SVCD and get the same affect? Its very puzzling, has it got something to do with the fps?

[Poplar]

Yes, it has something to do with frame rate. If audio is playing at 24fps and video is playing at 29.976fps, you got a synch problem.

Answer to question #2: it depends what kind of SVCD you want to make. Standard NTSC SVCD plays at 29.976fps, it's obvious you are gonna have synch problem. Two ways to work around this: make non-standard SVCD with 24fps or shorten audio play time to match video play time, which you need CoolEdit to do it.

[CFCboy]

Thanks for the advice Poplar.

What version of CoolEdit do I need? Seems to be differant types....
Is it easy to use?