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Activity Forums Apple Final Cut Pro Legacy out of focus artifacts going to compressor

  • out of focus artifacts going to compressor

    Posted by Hal Beery on October 25, 2005 at 7:55 am

    Project: motion graphics (7 vid chnls two are nested sequences).
    All editing in FCP. ch1=fcp generated light gray solid background
    ch2=psd image background (small numbers repeated in pattern w/ see thru to light gray)
    ch3=psd logo that floats around depending on the postion of the subsequent other images
    ch4nested (motion),
    ch5 nested
    ch6 psd cards, text, etc
    ch7 more graphics

    Problem: images go out of focus in mpeg2 encoding,
    1.especially during “moves” (when one track is moving it affects all the others.
    2. randomly (sp?) occasionally a track will go out of focus for several frames. no apparent reason.

    Checked:
    1. all “Y” axis key frames on EVEN numbers
    2. eliminated all extraneous key frames from motion tabs
    3. time line looks good.
    4. Up to 34 project files saved. then opened new project and sequences copied from #34 and pasted into new project sequences.
    5. Dumping preferences OFTEN.

    Que Pasa??

    MErci’, gracias, danyabad, daquiem, shey shey, mahalo nui loa

    hb

    G-4 d1.25, 2gbram, 4 internal + 1 external fw400 hdrives.
    OS10.3.7
    FCPHD 4.5

    Bret Williams replied 20 years, 6 months ago 4 Members · 7 Replies
  • 7 Replies
  • Bouncing Account needs new email address

    October 25, 2005 at 12:21 pm

    You didn’t mention if the entire timeline was FULLY rendered.

  • Bret Williams

    October 25, 2005 at 2:04 pm

    You are most likely using too low a bitrate on your mpeg encoding, or not a variable bit rate, etc. Moving content is harder to encode that stationary content. So when something is moving, the overall quality of the image is going to suffer if you have too low a bit rate.

    Try posting your encoding specs, and you may want to ask the folks in the DVD SP forum too.

  • Hal Beery

    October 25, 2005 at 3:52 pm

    Compressor: 60 Hi quality= 2 pass vbr, 6.8 average bit rate, max = 7.5
    I’ll double check whether the timeline was rendered or not. Which is preferred?

  • Hal Beery

    October 25, 2005 at 4:12 pm

    “You didn’t mention if the entire timeline was FULLY rendered”< What are the implications for Fully or not? I'm running a sequence through compressor (fully rendered) now to test if I get the same results. tnx.

  • Bouncing Account needs new email address

    October 25, 2005 at 8:47 pm

    [HalB] “I’ll double check whether the timeline was rendered or not. Which is preferred?”

    Rendered.

  • Chris Babbitt

    October 25, 2005 at 8:56 pm

    Try Single-Pass VBR. Even CBR should be fine at that high of a bit-rate. 2-Pass VBR is Compressor 2 is broken….at least in my case.

  • Bret Williams

    October 27, 2005 at 2:37 pm

    Well it’s faster. But you can’t export unrendered material. FCP will render it during export. However it will leave your timeline unrendered when it’s done. Just like print to tape. So yes, render the timeline or you’ll be wasting lots of time rerendering.

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