Slight jerkiness?

[lemmy999]

I capture at 480x480 with an ATI TV-Wonder & Vdub at 29.97fps. I use the Huff codec. My system runs at about 60%-70% while capturing. In about 1 hour of capture, I get about 30-35 dropped frames. I assume this is because of my soundcard. I then to IVTC in Vdub and convert to MPEG2 using TMPGEnc using the NTSC Film template. When I make the SVCD and play it on my DVD players, occasionally there is a barely noticeable jerkiness during a scene (for example) with quick head movement or something like that. Many times with quick movements, there is not jerkiness. I just don't understand what is causing this. For the most part the results are excellent. Is it those 35 dropped frames causing this?

[x2pacalypsehalx]

yep, capture using 15 fps works for me

[kinneera]

Is the source you're capturing originally at NTSC film framerate? If not, using IVTC on it may cause occasional visible jerking since you would actually be deleting a few frames every second.

[lemmy999]

The original was filmed in 24fps film but has been telecined to give 30fps (you can see the 2:3 pattern of interlaced:non-interlaced). This is why I IVTC, to get it back to 24fps.