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Premiere Pro CS4 - Odd glitches in renders

May 21, 2012 7:55 AM

Tags: #hdv #1080 #render #glitches #key #glitch #filters #f4v #1920 #chroma #adobe_premiere_pro_cs4 #queue

Hello, everyone out there in Adobe land!


I've looked for posts with a problem similar to this one, and couldn't find one so I'm sorry if there's another thread out there addressing this. I've got some strange glitches coming out in my renders, and can't seem to figure out why.


In this case, the composition consists of one layer of largely chroma keyed footage laid over a static .jpg backdrop. I'm getting pixellation and strange artifacts apprearing in the footage, with accompanying audio glitches at the same spot. The audio and video do NOT appear to be out of sync on this particular clip.


Here are some screenshots:


My video is:

Type: MPEG Movie

File Size: 92.1 MB

Image Size: 1920 x 1080

Pixel Depth: 32

Frame Rate: 29.97

Source Audio Format: 48000 Hz - compressed - Stereo

Project Audio Format: 48000 Hz - 32 bit floating point - Stereo

Total Duration: 00;00;48;16

Average Data Rate: 1.9 MB / second

Pixel Aspect Ratio: 1.0


Filters on said clip:


My sequence settings:


My export settings:


Please let me know if there's any other information I can provide that will be of use.
Everything else in the video looks great, it's just this one bit where I'm getting these odd glitches.
This isn't a particularly huge project, I'm a bit surprised to see this stuff.


Thanks in advance!



  • Currently Being Moderated
    May 21, 2012 8:45 AM   in reply to DanOnTheMoon

    Your footage is 1920x1080 ? and your sequence is 1440x1080.

    Best is to keep it the same,

    Maybe the clip is choking on all the chroma key effects.

    Disable a few and see how that goes.

    Why flv? What is the final destination.

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  • Currently Being Moderated
    May 21, 2012 10:37 AM   in reply to DanOnTheMoon

    I think what Ann is saying (she will correct me if I am wrong) is that you match your sequence to your video for EDITING... and you then change the video size when creating your output


    At least, that is what I do when editing HiDef 1920x1080 AVCHD in a matching sequence, and then I output to 720x480 AVI (widescreen PAR) to create a DVD


    Edit in native format... export to anything you want

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  • Currently Being Moderated
    Jun 30, 2012 2:32 PM   in reply to DanOnTheMoon

    Glad you got it fixed!

    And thanks for reporting back.

    Mark as:

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