NTSC & PAL FLICKER

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  • maximo4usaRT
    mini MURCer
    • Apr 2001
    • 37
    #1

    NTSC & PAL FLICKER

    I have a samsung VCR capable to convert NTSC
    to PAL and viceversa.
    Since i have a digital camcorder in pal format and my project is in NTSC i had to use my VCR to convert the video signal.
    No problem so far.
    My VCR does a pretty good job in the conversion but.... during playback of converted pal to ntsc scene in a ntsc timeline, an expert eye can still see some kind of flashing or pulsing in the clip.

    I have MATROX RT2000 and i use premiere 6

    ANY SUGGESTION TO FIX THIS PROBLEM ?
    I TRIED remove flicker but that strange effect is still there.

    Thanks

    Massimo
    Tags: None
    • KRSESQ
      Super MURCer
      • Feb 2000
      • 3224
      #2
      How does it look if you edit in PAL and convert the output signal to NTSC in the vcr?

      Perhaps more importantly, how does it look on a NTSC reference monitor?

      Kevin

      [This message has been edited by KRSESQ (edited 09 May 2001).]

        Comment

        • maximo4usaRT
          mini MURCer
          • Apr 2001
          • 37
          #3
          I could do that, but since my other two cameras are NTSC, then i would probably have same kind of effect in the "ntsc to pal" scene.
          Basicaly i'm mixing pal and ntsc clip together so... i gues somewhere i have to apply some kind of filter.

          Any soggestion for combination of filters in premiere ?

            Comment

            • KRSESQ
              Super MURCer
              • Feb 2000
              • 3224
              #4
              What frame rate do you use for NTSC capture?

              just how bad does it look on the finished tape master? Is it a serious distraction or not particularly noticable?

              Computer monitors are notorious for showing video artifacts that will never show up on TV.

              Kevin

                Comment

                • maximo4usaRT
                  mini MURCer
                  • Apr 2001
                  • 37
                  #5
                  well, the problem become noticable in clip with NO MOTIONS. If you have a scene with no motion (kind like a still) you will see the screen going up and down kind like shaking verticaly. only in this kind of situation you'll see the problem very clearly.

                  I use default setting for my capture (29.97 i guess)

                  there also another particular that i had notice... whenever there is the color red or something red in the clip, i can see it pulsing and flashing...

                  i guess the best thing to do is post a little avi file so who what help me, can see what i'm talking about.
                  I'll do it tonight at home.

                  Thanks again

                  Massimo

                    Comment

                    • snn47
                      mini MURCer
                      • May 2001
                      • 38
                      #6
                      Normally PAL is 50Hz
                      However some equipment converts it to PAL 60Hz (e.g.DVD-player).
                      So the 10 additional Hz have to come from hyperspace

                        Comment

                        • maximo4usaRT
                          mini MURCer
                          • Apr 2001
                          • 37
                          #7
                          ???

                          so ?

                            Comment

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