HDTV and lip sync

Discussion in 'TV Shows' started by Doug Smith, Jun 4, 2003.

  1. Doug Smith

    Doug Smith Second Unit

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    In my area, often when watching the HDTV channels, the sound and the lips are out of sync.(the sound is a split second behind) It reminds me of watching some of the old B grade Japanese flicks. What's the reason for this?
     
  2. Adam_ME

    Adam_ME Supporting Actor

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    I've noticed this occasionally on ABC. In particular, their Saturday night movies.
     
  3. Tyler DJW

    Tyler DJW Stunt Coordinator

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    Have to report the same here. ABC in San Francisco is often noticably out-of-sync. The same station also is plagued with a frequent ticking sound (subtle, but annoying) through much of it's programming, at least that's what I've found.

    No idea what the cause of the problem is.
     
  4. Douglas*A*R

    Douglas*A*R Stunt Coordinator

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    It might be due to something called multi-path. As I understand it, that's where a signal is sent directly from the transmitter to your antenna, but is also reflected by some object(s) so that the same signal arrives a split second later. Several things can cause it, like hills, high-rises, airplanes, etc.
     
  5. Matt Stone

    Matt Stone Lead Actor

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    I don't think so, Douglas. I have HD over cable and I encounter the same problem on ABC in Lafayette, IN. Must just be an ABC thing.
     
  6. Wayne Bundrick

    Wayne Bundrick Cinematographer

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  7. Jeff Jacobson

    Jeff Jacobson Cinematographer

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    I've noticed the same thing, but with Standard Definition TV on a FOX affiliate.
     
  8. Douglas*A*R

    Douglas*A*R Stunt Coordinator

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    Hmm, I'm stumped then. I don't know much about the multi-path phenomenon, but I thought I'd just throw it out there as a possibility.

    Have you called your cable company and/or local station(s) about the problem?
     
  9. Matt Stone

    Matt Stone Lead Actor

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  10. jimmy~e

    jimmy~e Agent

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    I have the same problem with out of sync audio but I have not correlated it with specific channels. It occurs somewhat randomly for me on just about any station. I have a digital high def cable box (Time Warner) and an NEC HT1000 front projector. I do not notice it on my CRT Toshiba that is digital cable from the same feed but not a high definition box.
     

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