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View Full Version : VHS w/virtualdub filters = jerky video


dvwannab
1st June 2004, 20:11
Hi all,

Need some advice. I have a 6 year old VHS tape in pretty good condition. I used a JVC HR-S9800U SVHS (with DNR/TBC & video calibration enabled). That was connected to Datavideo TBC-1000, to Canopus ADVC-100 to computer and capture with Scenalyzer (Type 2 AVI, 720x480). Frameserved to TMPGEnc.

Then I used this chain of filters to clean up and make it pretty:

deinterlace (unfold)
Video Denoise (default)
Dynamic Noise Reduction (7)
hue/saturation (1, .095, 1)
Smart Smoother HQ (3, 40, 160, 0)
Sharpen (25)
brightness/contrast (+5%, 112%)
MSharpen (default)
Flaxen VHS (default; horizotal +6)
deinterlace (fold)
Null Transform (cut off black and noisy edges)
Smart Resize 352x240 (no resize filter) for VCD
Resize (internal) 720x480 (Precise Bicubic -0.75) for DVD

VCD was perfect. On my DVD encoded of the same file, I noticed 2 lines of horizontal jerky motion when there was motion going left to right or right to left. Can anyone give me a hint on what I did wrong here? The VCD using the same filter chain was perfect. Could it be the resize filter used? VCD, I used smart resize with no resize filter selected. On DVD I use the Virtualdub internal resize filter and used used Precise Bicubic (-.075) and resized from 702x474 to 720x480. Thanks for any input you can provide. HELP!!!!!

dvwannab
2nd June 2004, 04:15
My error was with the resizing. For those interested and for future reference, when you resize using the virtualdub internal filter, just input the video size after you have finishing cropping. Select Nearest Neighbor and then input the video size you want, in this case 702x474 to 720x480. So small, but very significant.

rfmmars
2nd June 2004, 07:39
Without a picture I am only guessing, but I have found that over sharping is the cause when encoding to DVD. I also notice the use of two timebase correctors, one in the JVC, and the other external, try just one.....I like the JVC I have a 9900.

richard
www.photorecall.net