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View Full Version : Sync Problem with DivX 4.12


sAXIn
3rd April 2002, 02:03
First of all, you have great forum guys keep going...
Until 2 days later I was encoding only with NanDub 3.11a and vbr mp3 2 cds over 25 movies everything went fine...

My last two movies Encoded with 4.12 DivX I had sireous sync problems
one of the movies was Etrapment NTSC wich I IVTC'ed with TMPG to 23.679 fps so I was sure the problem is because of the frame rate drop .
The second movie is Crimson Rivers Pal version (25 FPS) and again like in the first movie audio goes out of sync badly video is faster
I use only WMP 6.4 or BSPlayer 0.84 .
I tryed couple of things with the Crimson Rivers

1) Converted the Mp3 VBR (Transcoded by BeSweet 1.2) to wav and Multiplexed it with the AVI (V.D. 1.4.9) I got 2.2GB file with the same problem
2) Made wav header for the VBR and multiplexed with Virtual Dub 1.4.9
same occur.

I searched all the forums (Keyword "SYNC") related and didn't find any "one way" answer to the problem ....
While waiting I Encoded the audio from the beggining from AC3 with BeSweet again to CBR MP3 160Kbs and To OGG by OGGMachine q=0.500
I will post the results ...


T.H.X. in advance
sAXIn
:confused:

sAXIn
3rd April 2002, 15:07
This night I Encoded the sound again to:
-Mp3 CBR 160Kbs with BeSweet and SSRC to 44.1
-Ogg Vorbis q=0.500 with OggMachine (BeSweet 1.2 and again SSRC to 44.1)

I checked video and Audio leight
Video 1:41:28 (H:MM:SS) ; or 152222 Frames it gives us (/25 FPS)
-=> 6088.88 sec

Audio (by WinAmp) 1:41:29 ; or 6089 sec in frames (*25) -=> 152225

So the Audio is little bit longer so ""to sync"" I need video speed up a little bit tryed with NanDub and With AviInfo without any Succes

Checked with BsPlayer and with WMP 6.4 same Stretched audio problem
when the movie starts it plays fine but as the time goes the out of sync is bigger and bigger

I am really think I tryed it..... maybe use other AC3 to MP3 method
or the SSRC makes me problems or maybe the DivX 4.12 don't likes my machine I didn't had these problems with NanDub Encoding (3.11a)

If someone has any idea???? PLZ POST

DSPguru
5th April 2002, 07:12
you need to assert the A/V delay when encoding audio
for instance : -ota( -d -1000 )

btw, check the latest release (v1.3b7)

Dg.

sAXIn
5th April 2002, 18:27
...
There is no delay in that movie

DSPguru
5th April 2002, 20:39
:(

give it a try without ssrc..

sAXIn
6th April 2002, 15:44
The prob. was because of too high CPU load it couldn't reach sync
I encoded MP3 CBR 96 kb/s and it workes fine exept few really high motion scenes but I can hadle it

I use very old sys. IWill 440LX board (66Mhz) and PII-233Mhz MMX CPU
it can't handle it !!!!

My mistake that I didn't posted this from the beggining we could solve this earlier, still

What is the best prog. to see realtime what CPU load I have and which program/s loades it X%???