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View Full Version : Jouning two avi's with vdub problem


JRvP
2nd January 2003, 20:57
I have a number of downloaded divx files I'd like to join, no problem
usually but these files are very problematic, when I load the first avi I get this msg

"virtualDub has detected an improper VBR audio encoding in the source AVI file and will rewrite the audio header with standard CBR values during processing for better compatibillity. this may introdice up to 3679 ms of skew from the video stream. if this is unacceptable, decompress the *entire* audio streamto an uncompressed WAV file and recompress with a constant bitrate encode. (bitrate: 157.7+/- 13.9 kbps)"

I press ok and append the next file and get this msg

"Cannot append segment: The audio streams have a different sampling rates (19718.00000 vs. 19818.00000)"

I press ok and You can forget about it VDub doesnt join, so I tryed to rewrite both avi's with a new CBR header... no Joy audio sync is lost in the most drastic way, I could not fix..
I tryed a lot of different tools but they lost the audio completely,
So my question: Is there anyone who can tell me how the hell I can join those files.... please.............

TIA

JR

DJ Bobo
3rd January 2003, 00:05
Try NanDub instead of VirtualDub in the first place. If that doesn't succeed, you've got to extract the audio from every file, reencode it in CBR mode, remux the CBR versions with their respective videos, and then append them using VD or ND.

JRvP
4th January 2003, 00:39
No luck with nandub either, I managed to find an amazingly simple sollution however :D
Load the file in Vdub then rewrite the file, under video "direct stream copy", under audio "full processing mode" and "compression" mpeg layer 3...bitrate and sampel freq You want, You have to have the fraunhofer professional codec installed !
do this with every single file, then join and adjust audio sync as usual.
I could not hear any difference in audio quality :)

JR

killingspree
4th January 2003, 16:48
...you've solved your problem:
it might have worked with avisynth withour reencoding the audio...
doing it this way should be just about the last thing because
1) it's degrading the audioquality, even if you can't hear it clearly, there might be some problems with low frequencies or so.
2) it's definitely timeconsuming!

anyway just an idea
regads steVe

JRvP
5th January 2003, 10:54
Ill keep avi synth in mind for the next time, I only had three "problem" movies I did them all Yesterday.
But You are sure right on one thing..........it is timeconsuming !

JR