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Old 04-04-2009, 07:10 PM   #1
AJL14
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Default Top Field, Bottom Field Problem

Happy weekend everyone.
As Anton suggested in one of his knowledgeable posts, the best way to convert an HD timeline to SD DVD, is to import the outputted timeline HD avi file into VirtualDub and make the "resize" change. Works great. Except when I import it back into an SD 3x4 timeline to make the SD DVD, the only way the 720x480 SD Project setting works (seems to be unchangeable) is "Bottom Field" first. Then when exporting directly from timeline to DVD, there is a terrible, horrible inverse field smear on any horizontal panning. Same file imported into an HD (16x9 "Top Field First") timeline, the file plays like a champ. But transfering from that HD timeline down to DVD directly sucks much worse than the SD timeline (pix quality - not talkling about the inverse field problem).

Any suggestions would be more than gratefully acknowledged - for it's a 90 minute travelogue and needs all the quality possible for non-BluRay equipped folks.

Many thanks, and cheers,
Alan
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Old 04-05-2009, 02:13 AM   #2
antonsvideo
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is it possible you missed an important step in Virtual Dub? you MUST tick interlaced
http://www.videoproductions.com.au/h...dub-hd-sd.html
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Old 04-05-2009, 03:02 AM   #3
Bluetongue
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Alan
Make sure when you import the file onto the timeline to change the field order in Properties to "Upper Field" first, EDIUS interprets ALL AVI as "Lower Field"
The Project for SD will be in "Lower Field" which is correct BUT the clip MUST be set to upper field as it has come through Virtual Dub from HD which is "Upper Field"
Otherwise Edius will not handle it correctly and you will get severe jitter on PANS
REgards Barry
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Last edited by Bluetongue; 04-05-2009 at 03:15 AM.
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