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  • DV to SDI conversion is bad

    Posted by Chris Hall on April 25, 2006 at 3:49 am

    Hello,

    I’m using a Kona LH with FCP. I have PAL DV clips and have found that when in a DV sequence the SDI output or component output of the LH card has some bad artifacts. I notice it mainly on red areas of the screen. I find that I get slight horizontal lines appearing in areas of red. I only see it when looking at a component monitor, if viewed in composite it looks ok.

    I have the same problem if I place the DV clips in an uncompressed timeline and render. It seems like the dv to SDI or DV to component conversion is not that good. If I redigitize the dv clips via the component output of the DV deck in uncompressed the pictures look fine but I would like to be able to avoid this.

    Does anyone else have this problem. I wonder if its a PAL thing.

    Thanks,

    Chris

    Jeremy Garchow replied 20 years ago 3 Members · 5 Replies
  • 5 Replies
  • Jeremy Garchow

    April 25, 2006 at 4:03 am

    Are you sure it’s just not bad red dv compression? That’s the problem with a 4:1:1 (or 4:2:0 in PAL) compression. When you redigitize uncompressed your footage is getting upsampled to 4:2:2 smoothing out that chroma.

    Jeremy

  • David Battistella

    April 25, 2006 at 1:21 pm

    You might want to try to add a Natress DV Chroma smoothing filter on that.

    http://www.nattress.com

    Peace and Love 🙂

  • Jeremy Garchow

    April 25, 2006 at 4:05 pm

    Try what David says, or you could redig in DV50 so that you have a 4:2:2 codec and save some bandwidth vs. uncompressed.

    Jeremy

  • David Battistella

    April 25, 2006 at 6:24 pm

    Actually,

    You should use media manager to media manage your final sequence to DVC50 and render it out from there.

    david

    Peace and Love 🙂

  • Jeremy Garchow

    April 25, 2006 at 6:29 pm

    This would be after applying the Nattress filter, you’re saying, correct?. If you notice in his original post, he tired that and still got crappy results (without the Nattress filter). It’s the deck that’s doing the smoothing, not Quicktime when recapturing.

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