Error in VirtualDub

[BaseRSX]

I am just trying to make a clip out of a larger divx avi file. But I get this error -



Like it says when I try to make the clip the audio is way out of sink with the video. I know how to save the files audio to a .wav but how do I "recompress with a constant bitrate encoder"?

Any help would be great, thanks!

[BaseRSX]

OF course I would also be open to using a different piece of software all together if it could handle this problem. Oh and just to let you know I tried to convert this file to .mpg with TMPGEnc and cut it that way but got the very same lag. And it’s not hardware because I can clip other files with both Vdub and TMPGEnc just fine on this system.

Thanks again.

[jagabo]

Try this:

Put Audio in Full Processing Mode. File -> Save WAV. When that's done go to Audio -> WAV AUdio and select the WAV file you just created.

[BaseRSX]

Try this:

Put Audio in Full Processing Mode. File -> Save WAV. When that's done go to Audio -> WAV AUdio and select the WAV file you just created.

Yeah I tried that. And tried using the .wav as the audio source both in Vdub and TMPGEnc and still get the lag.

Someone at work told me I need to use something called BeSweet to fix the problem in the .wav But I have no idea how to use BeSweet...

[jagabo]

If the lag is the same all the way through use Audio -> Interleaving -> Delay Audio Track.

You can also try using VirtualDubMod which asks you if you want to patch the header or not. Try both ways.

[BaseRSX]

If the lag is the same all the way through use Audio -> Interleaving -> Delay Audio Track.

You can also try using VirtualDubMod which asks you if you want to patch the header or not. Try both ways.

Well the audio is ahead of the video. Is there a way to delay the video to the audio?

[jagabo]

If the lag is the same all the way through use Audio -> Interleaving -> Delay Audio Track.

You can also try using VirtualDubMod which asks you if you want to patch the header or not. Try both ways.

Well the audio is ahead of the video. Is there a way to delay the video to the audio?

You can advance the audio by using a negative delay value.

[BaseRSX]

that did it!! I got it done with the interleaving! I had to do it like 20 times tweeking the time a little each time but i got it just right! Thanks a lot!

[BaseRSX]

Wow, one major problem!! I took a 15 second clip for a 30 min video file. The 30 min file is 178 megs and the 15 second clip is 168 megs!?!?? How can it be that large!! It should be a tiny little file. What am I doing wrong to get such a large file?

[jagabo]

By default VirtualDub saves video as uncompressed RGB, and since you're using a an uncompressed WAV file you also have uncompressed audio.

If you are not filtering you can put the video in Direct Stream Copy mode so it doesn't get reencoded. But you can only start your clip on a keyframe if you do that. Otherwise you can select a compression codec and compress the video. Do the same for the audio, put the audio in Full Processing mode and select a compression codec.

[DarrellS]

that did it!! I got it done with the interleaving! I had to do it like 20 times tweeking the time a little each time but i got it just right! Thanks a lot!

IMO, it's easier to use an audio editor like Goldwave and add or subtract audio from the beginning of the file. (if the beginning of the audio clip is three seconds of silence and you need another three seconds of silence then copy the three seconds of silence and add it to the beginning)

I have never been able to get interleaving to work for me in Virtualdub. I can spends hours playing with the settings and see absolutely no change. Might have something to do with Windows 2000, I don't know.
If the audio gets progressively out of sync as the movie plays then warping the audio file in Goldwave to the same length of the video file usually fixes that.