Converting A 25.00fps AVI and audio sync

[vcdfreak3240]

I'm trying to convert an avi to a dvd mpeg. These are the specs for the source file.

Res: 512 x 384
Frame Rate: 25.00
Audio: 128 kb/s 44100 Hz

The problem is, I extracted the audio to a .wav file and when I try to convert it from a PAL framerate of 25.00fps to an NTSC framerate of 23 or 29...the audio becomes out of sync with the video. Is it possible to convert a 25.00 fps avi to the american NTSC standards and have the audio remain in sync. If so, how do I do it. Any help is really appreciated!

Oh, and I have virtual dub, avi synth, and tmpeg encoder to use. I followed one of the guides on this site the first two times around and i can't figure it out still.

[mats.hogberg]

1) Extract audio to wav, and resample to 48 kHz (Goldwave or SSRC)
2) Make audio longer using WavWorks

3) Patch AVI to 23.976 fps using AVIFrate
4) Encode AVI video to NTSC DVD spec m2v
5) Encode wav to DVD specs (AC3 using ffmpeggui)
6) Author

/Mats

[vcdfreak3240]

ok this might take me a while cause I'm not real familiar with those other programs. are they difficult to learn? The one im most concerned with is the wavworks one.

[mats.hogberg]

Nope. All steps are as simple as they could be.
WavWorks is a Java app, and needs Sun's Java runtime, but if you have that part setup correctly, it's no different from any regular Windows app. It even has a preset for PAL to NTSC, IIRC.
You could also use Goldwave, Timewarp function to make audio longer by (25/23.976=) 1,0427093760427093760427093760427, but I've found WavWorks easier and most of all faster.

/Mats

[vcdfreak3240]

I tried using wavworks, and when i tried taking the audio from 25.00 fps to 23.976 it came out way off sync with the video (which i switched to 23.976 fps using avisynth cause avifrate didn't work on my computer). Then i tried experimenting, and taking one from 23.976 to 29.97 and it sounded like the people in the video were on helium cause their voices were high pitched. what am i doing wrong?

[SoCalMK]

Convert the extracted .wav file with besweet to 23.976 AC3 audio. That program has never failed me. Even easier to use with besweet gui.

[mats.hogberg]

In what way didn't AVIFrate work? It's such a simple (but useful) app, I can't see how it can fail.

/Mats

[vcdfreak3240]

it wouldn't load after i installed it...that's how it wouldn't work