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Activity Forums VEGAS Pro The jitters (again)

  • The jitters (again)

    Posted by Steve Boreham on October 28, 2008 at 11:30 pm

    Camcorder: Sony DCR-SR100E HDD
    Vegas version: Movie Studio Platinum 6.0

    I found some posts close to this, but not one to solve the problem so here goes:

    Most video shot with my wife’s Handycam (using PAL since we are in UK) is slow moving social stuff, but she recently used it to shoot my arrival at a destination by motorcycle. Stood about ten metres inside the kerb of a town centre corner, she deliberately panned slightly slower than my actual corner speed allowing me to enter the scene stage left, gradually traverse to right of frame as she panned with me through the corner, and then exit stage right six seconds later. Perfectly done, the rendered output is artistic but jittery. The best way to describe it is as a series of motorcycles slightly out of synch with each other. Pause any frame and you get the “real” motorcyle plus a ghost a few millimetres in front.

    Using blended (my normal choice for slow stuff) or interpolated (which I expected to help here) deinterlacing makes not the slightest bit of difference, as also applies to using Progressive Scan for field order; the latter is no better than Upper Field First when I tried it expecting it to be worse.

    Playback on PC with LCD panel (fle rendered using MainConcept MPEG-2 with Default template) or 100hz cathode ray tube TV (DVD authored with DVD Architect 4.5 using source rendered with MainConcept MPEG-2 and DVD Architect template) are both equally jittery. Put the DVD intended for TV in PC and it is also equally jittery. I cannot check playback on the camcorder itself because the HDD has since been reformatted.

    Have I simply reached a technical limitation of a relatively cheap domestic PAL camcorder or is there specific set-up I should try in Vegas?

    Am happy to answer any questions that need answering before advice can be given.

    Many thanks.

    Steve Boreham replied 17 years, 6 months ago 1 Member · 2 Replies
  • 2 Replies
  • Steve Boreham

    October 29, 2008 at 9:00 am

    Typo:

    … as also applies to using Progressive Scan for field order; the latter is no better than Upper Field First when I tried it expecting it to be worse.

    Should be:

    … as also applies to using Progressive Scan for field order; the latter is no better than Upper Field First when I tried it expecting it to be better.

  • Steve Boreham

    November 12, 2008 at 3:44 pm

    No replies, but for the benefit of others who perform a similar search to me before posting their problem, I will share the outcome.

    Perversely, the cause was using Reduce Interlace Flicker.

    Undoing this setting on the video clip in question (actually I used the switch option to undo it from all clips since I had only used it in the first place as “belt and braces” rather than because of actual flicker) and the jitter disappeared completely. Applies both to Blended and Interpolated deinterlace methods; there is no distinguishable rendered playback difference between the two despite the panning motion being quite fast with respect to the background during the middle portion.

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