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Thread: 'Movement' in the video - what causes this?

  1. #1
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    Default 'Movement' in the video - what causes this?

    I am a beginner with Vegas and have just finished my first mini-project.

    However, when the DVD is viewed there is loads of 'movement' on parts - see for example the brickwork on the church.

    This happens throughout the clip.

    I would like to ask the experts what causes this and what am I doing wrong?

    Link to clip: WHITE DOVE VIDEOS :: GALLERY - CHRISTINE & WAYNE CHENNOUR :: Quality Wedding Videos in Bucks, Berks, Herts & Oxon

    Thanks

    Colin
    Colin Steed
    "I want to learn something every day"
    www.whitedovevideos.co.uk

  2. #2
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    Looks a lot like compression artifacts to me. Try a higher bitrate, ensure you use multiple passes and deinterlace for optimum pc viewing.

  3. #3
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    Default 'Movement' in the video

    Thanks for your reply Marc.

    The avi file that I used was rendered as PAL DV Widescreen in Vegas Pro8 and the details were:

    Audio: 48,000 Hz, 16 Bit, Stereo, PCM Uncompressed.
    Video: 25 fps, 720x576, Lower field first.
    Pixel Aspect Ratio: 1.457. OpenDML compatible.
    Widescreen PAL DV video files compatible with Sony Video Capture.

    As a first step to fixing the problem is this ok?

    Colin
    Colin Steed
    "I want to learn something every day"
    www.whitedovevideos.co.uk

  4. #4
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    Are you saying your DVD images suffer (rather than just the WMV version). It looks to me like "strobing" which even broadcast suffers from - stripy shirts and ties are often a problem and presenters have to be careful what they wear.
    Tim

  5. #5
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    Hi Tim

    Yes, it's on the TV too. I have just played the avi and it's perfect.

    So is there nothing I can do (I am not doing anything incorrectly)?

    Colin
    Colin Steed
    "I want to learn something every day"
    www.whitedovevideos.co.uk

  6. #6
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    I really don't know - a bit beyond my skills I'm afraid :(
    Tim

  7. #7
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    Just a quick recap....

    A DV AVI render out plays and looks fine on your PC?

    But both WMV (Web) and MPEG2 (DVD) have these artifacts?

    Did you follow Marc's suggestion to up the bitrate and a do a multi-pass encode? - For the web de-interlace.

    I have had similar problems before (not yet with Vegas). I ended up dumping out the timeline from the app in question to uncompressed a/v and then re-encoding that.

    What are your encoding steps?

  8. #8
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    Hi Andy

    Thanks for your reply. My answers to your questions in red.

    A DV AVI render out plays and looks fine on your PC? Yes

    But both WMV (Web) and MPEG2 (DVD) have these artifacts? Yes

    Did you follow Marc's suggestion to up the bitrate and a do a multi-pass encode? - For the web de-interlace. Sorry, do not know how to do that (new at Vegas)

    I have had similar problems before (not yet with Vegas). I ended up dumping out the timeline from the app in question to uncompressed a/v and then re-encoding that.

    What are your encoding steps?
    Sorry, do not know how to do that (new at Vegas)


    I also noticed that when I used architect to prepare and burn dvd is was set at NSTC so have changed to PAL Widescreen. Looks better - but still 'movement' although not as bad.
    Colin Steed
    "I want to learn something every day"
    www.whitedovevideos.co.uk

  9. #9
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    Quote Originally Posted by csteed View Post
    What are your encoding steps? Sorry, do not know how to do that (new at Vegas)
    Really what I wanted was something along the lines of..... I have some miniDV source file whose properties are.... my project settings are the following...... I chose these settings/template for WMV..... I chose these settings/template for DVDA.... DVDA settings are....

    How you got from A to B because you've already noted and fixed one issue (NTSC instead of PAL).

  10. #10
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    Default 'Movement' in the video - what causes this?

    Sorry Andy.

    I am using mini dv avi source file

    Rendered as settings: avi output for import into DVA
    PAL DV widescreen
    Audio: 48,000 Hz, 16 Bit, Stereo, PCM Uncompressed.
    Video: 25 fps, 720x576, Lower field first.
    Pixel Aspect Ratio: 1.457. OpenDML compatible.
    Widescreen PAL DV video files compatible with Sony Video Capture.

    Rendered as seetings for web: wmv
    Default template
    Audio: 64 Kbps, 44,100 Hz, 16 Bit, Stereo.
    Video: 25.000 fps, 720x576, Quality VBR 90, WMV V9 Compression.

    DVA Settings:
    in project properties:
    Video format: PAL Widescreen
    Colin Steed
    "I want to learn something every day"
    www.whitedovevideos.co.uk

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