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  1. Member
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    Feb 2003
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    This is a bit of an age old problem for me but after a recent reformat and codec problem that is now fixed I seem to have massive jittering when i convert an avi to an mpeg using mainconcept mpeg encoder. It is especially visible when the camera pans horizontally or for example when a title moves from the left to the right of the screen. It seems to jump every half second. I have watched on a pc and on a dvd player but no joy. any help would be appreciated.

    (I'm using TMPGENc DVD AUthor) to convert to DVD but the problem is visible on the raw mpeg so I dont think TMPGEnc has anything to do with the problem.
    Many thanks
    David
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  2. Member mats.hogberg's Avatar
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    Jul 2002
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    Frame rate conversion problem (NTSC material encoded as PAL)?

    /Mats
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  3. Member
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    Originally Posted by mats.hogberg
    Frame rate conversion problem (NTSC material encoded as PAL)?

    /Mats
    nope, i've changed the settings to pal... the only part i changed from the default MainConcept settings is changed 4:3 to 16:9.
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  4. Member edDV's Avatar
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    Field reversal will do something similar (at 25 Hz rate). Some types of deinterlace will drop motion resolution to 25 fps as well. Half second problems are something else.
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  5. Member
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    sorry I am a moron, I created the project in NTSC.. school boy error.
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  6. The symptons mentioned in the initial message sound sort of similar to what I am encountering with my Hi8 TRV-320 right now.

    I capture my DV as uncompressed AVI in Studio 9.4 and edit it. When done, I turn the project into another uncompressed AVI and delete the raw footage one. I then pull this file into MyDVD Deluxe Suite to do authoring and burning (NTSC).

    This has worked with minimal issues on 50+ video clips over 13 DVD's of home videos I've shot over the past few years. This ONE video clip, however, is giving me problems.

    The uncompressed file and the DVD look fine on the computer. When I take it to the DVD player hooked to my TV, the video is quite jittery. This same DVD has 2 other video clips and 2 slideshows with music, all of which look fine. Something is going on with this one video clip and I'd like to get to the bottom of it. Perhaps if I remove a frame or two at the beginning it might fix it (some kind of transcoding issue perhaps)??? Any suggestions...
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  7. Always Watching guns1inger's Avatar
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    Do you transfer as DV, or via an analogue connection to uncompressed output ? DV is not uncompressed. Uncompressed footage eats a lot of HDD and requires a fair bit of grunt to play back. DV eats around 13GB an hour.

    Anyway, field order is the most likely culprit. Post a few seconds of a problem section and we can check this for you.
    Read my blog here.
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  8. Член BJ_M's Avatar
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    Originally Posted by guns1inger
    Do you transfer as DV, or via an analogue connection to uncompressed output ? DV is not uncompressed. Uncompressed footage eats a lot of HDD and requires a fair bit of grunt to play back. DV eats around 13GB an hour.

    Anyway, field order is the most likely culprit. Post a few seconds of a problem section and we can check this for you.

    he already answered what the issue was https://forum.videohelp.com/viewtopic.php?p=1601618#1601618
    "Each problem that I solved became a rule which served afterwards to solve other problems." - Rene Descartes (1596-1650)
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  9. Always Watching guns1inger's Avatar
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    Sorry if I wasn't clear - I was responding to shedhead the threadjacker, not the OP
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