23.976 to 25.000... Advice Needed.

[ZiGGY909]

Hi

I'm encoding XviD to MPEG2, my source file is 23.976. Destination is 25.000 (not interlaced)

This is my AviSynth script:

AVISource("D:\encode\test\capt-18.avi")
LanczosResize(704,432,6,0,628,352)
AddBorders(0,72,0,72)
AssumeFPS(25.000, true)

I use CCE 2.70 to create MPV. I use virtualdub to extract WAV and besweet to encode the audio from 23.976>25.000, OK cool.

But the sync dont look good, seem to be in sync close... but it looks weird.

I'm just wondering should I have performed a 3:2 pulldown removal on the AVI file before CCE? Or maybe there's something I can do with Avisynth to give smoother results.

Thanks for any help [/quote]

[manono]

Hi-

I'm just wondering should I have performed a 3:2 pulldown removal on the AVI file before CCE?

If the source was correctly encoded at 23.976fps, then no, no pulldown removal is needed. The source plays smoothly, does it? Nothing wrong with it?

As for the audio asynch, if it's off by a little bit, is it off by the same amount all the way through? Is it a constant asynch? If so, that's easy to fix by adjusting the delay, either in the authoring app or on the audio directly, using Delay Corrector. If the asynch gets worse as the video plays, then it's a framerate problem.

If you were to encode the AVI in CCE at the original 23.976fps, run the MPV through DGPulldown set for 23.976->25 when done, then the audio won't have to be stretched at all. If it's AC3 already, it can be used as-is. If it's MP3, then you'll just have to convert it to AC3.

Also, since you're handling the audio separately, you want to disable it in the AVI being frameserved into CCE like this:

AVISource("D:\encode\test\capt-18.avi", False)