High Voices and Audio Sync Problems

[canada8668]

So basically I converted some rmvb files (with a frame rate of 23.000) to xvid using the shareware Alltoavi v4, resulting in xvid files with 128kps audio and a frame rate of 23. Then I used VirtualDubMod to extract the audio to wav, and AviSynth to create scripts for CCE. The scripts looked like this:

clip=AVISource("abc.avi", False)
aud=WAVSource("abc.wav")
AudioDub(clip,aud)
ResampleAudio(48000)
LanczosResize(720,480)
AssumeFPS(23.976, True)
ConvertToYUY2()

I then imported the avisynth files to CCE to convert these files into mpv and mpa files. I used the following settings: Audio Bitrate 224kps, Frame rate 23.976, 2:3 pulldown, 16:9 aspect ratio, since I intended to make NTSC DVDs.

I then imported the mpa and mpv files into DVD-Lab Pro where I made DVDs. However, when I import the mpv files into DVD-Lab Pro it thinks the frame rate is 29.97. G-spot thinks the frame rate is 29.97 too, but the pics/s is 23.976.

Anyways, when I compile the DVD, I get DVDs with slight audio sync problems (which I don't completely care about) and people with slightly higher voices. I'm wondering if this could be a frame rate problem, or a problem with DVD-Lab Pro settings (since the mpa files that I got from CCE don't seem to have high voices).

Does anyone have any ideas about why this is happening and how to fix it? Thanks in advance

[canada8668]

Or could it be a problem with pulldown? Should I be using 3:2 instead of 2:3?

[guns1inger]

The framerate is 29.97 - that is the NTSC framerate for video playback. The actual framerate of the video is 23.976. The 3:2 pulldown applied during encoding accounts for the difference. That side of things is correct.

I would suggest that the problem lies somewhere in the base framerate change from 23 fps to 23.976 fps, or the re-sampling of the audio. I suspect both play a part. The framerate change accounts for the sync issue, the resampling accounts for the pitch change. If you demuxed the audio and did the length and sample rate changes in a good audio editor you would have neither problem.