Trying to re-encode an mpg file but finished file is sped up

[Brooke Holloway]

Hey! Was wondering if someone could give me some advice! I am trying to re-encode a .mpg file originally recorded a 50fps
but when the file is finished it's sped up. I am using virtual dub, and tried to change the frame rate but i can't seem to duplicate the original speed. I have also tried to demux the file and same thing. Any advice anyone can give to help me fix the original video file so I can try again? Any and all advice is appreciated, perhaps the mpg files needs to be fixed? Where do I start, don't want to use the frame rate option in virtual dub. Kind of a novice at this so hopefully any answers are not going to be too complicated. Even the demuxed file has this problem. The original is fine, but I am trying to enhance it.

Thanks.

[manono]

I am using virtual dub, and tried to change the frame rate but i can't seem to duplicate the original speed.

If it plays at the right speed to begin with, why change the framerate at all? Can you tell us what you did - what settings you used in VDub?

Any advice anyone can give to help me fix the original video file so I can try again?

Post a short sample and explain what you're trying to accomplish. Saying you're 'trying to enhance it' isn't enough. And what's your intended output format? VDub doesn't encode for MPG

[Brooke Holloway]

@manono

It plays at the speed recorded to begin with you're right! But it has some enhancements I as a novice have tried to correct such as "deinterlacing", "cropping", "sharpening", and rbg level" issues.

The problem is whenever I try to re-encode it using virtual dub even without filters it's produces the same sped up output.
Maybe, the problem is the video was recorded at 50fps.

I attempted to use MPEG-Corrector to fix that speed up error but still the same, also attempted to demux that same video, but same
effect. I have no idea what to do, maybe I should use a different re-encoder? Maybe my virtual dub settings need to be reset, who knows.

Help.

[Brooke Holloway]

The option highlighted below seems to have worked out what appears to be an audio and video desynchronization issue frame per frame without trying to guess the fps. Thanks..