American PBS sync issues?

Discussion in 'RED DWARF UNIVERSE' started by Cerianna, Mar 28, 2010.

  1. Cerianna

    Cerianna Third Technician

    Apr 10, 2009
    San Francisco Bay Area, California
    I've noticed more often than not, there is a problem with the audio falling further and further behind as an episode progresses on my local PBS station in the US. Things start fine, but towards the end, it becomes difficult to watch. Have anyone else noticed this? I watch on KRCB out of San Francisco.
  2. Almighty_crj

    Almighty_crj First Technician

    Apr 12, 2009
    I'm not PBS viewer or even a video expert but it sounds like a frame rate problem. US shows 30fps from its 60hz mains electricity, UK shows 25fps from its 50hz mains electricity. UK to US transferring is a nightmare due to the frames you have to add in order to synch up the time as opposed to US to UK transfers which is easier - just drop 5 evenly spaced frames a sec!

    So yes, it's probably th frame rate on the transfer of the original tapes
  3. dvd3500

    dvd3500 Catering Officer

    Feb 19, 2008
    29.9773 fps I think...

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