Convert 50Hz RGB PAL to 60Hz for display on NTSC HDMI TV using OSSC

NewHome › Forums › OSSC, OSSC Pro and DExx-vd isl › OSSC – Feature Requests › Convert 50Hz RGB PAL to 60Hz for display on NTSC HDMI TV using OSSC

Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • November 9, 2017 at 12:51 AM #16973
    grips03
    Participant

      Convert 50Hz RGB PAL to 60Hz for display on NTSC HDMI TV using OSSC.

      Videopac+ G7400 is 50Hz RGB PAL only console, there is no 60Hz NTSC model. OSSC currently does not convert 50Hz to 60Hz, so displaying image on NTSC TV is not possible. This feature request would provide the conversion.

      November 10, 2017 at 5:45 PM #17032
      nmalinoski
      Participant

        Is framerate conversion like this even possible without a framebuffer?

        November 11, 2017 at 9:48 PM #17077
        grips03
        Participant

          Yes, I think it would be possible. There are $20 adapters that convert PAL to NTSC and I don’t think they have a frame buffer in them. I certainly could be wrong. Can marqs reply to say if this is possible or not?

          November 11, 2017 at 10:29 PM #17079
          grips03
          Participant

            Looks like it might not be possible, see 3:2 pulldown

            https://en.wikipedia.org/wiki/Three-two_pull_down

            Marqs if you can reply to be certain that would be great.

            November 19, 2017 at 12:31 PM #17319
            BuckoA51
            Keymaster

              Framerate conversion requires a framebuffer and always introduces stuttering or tearing.

              I believe the $20 devices you’re talking about simply correct the colour carrier in composite, allowing most NTSC TVs to display them despite the 50hz

            • Author
              Posts
            Viewing 5 posts - 1 through 5 (of 5 total)
            • You must be logged in to reply to this topic.