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Seamless looping problem



Hello, We are having difficulties looping our video seamlessly in 3 HD210s. We ARE able to produce seamless loops when only using 1 player - and Bright Author is not in interactive mode. In a basic, single unit, full screen mode, the loop is beautiful and smooth. But when using the same video files, as soon as we author an interactive project in Bright Author, and sync the 3 units together, the loops pause for a brief second at the start of each loop. The 3 units loop in sync, but just pause for a moment at the loop point. We are using a 30 sec Time Out Event on the master unit. Essentially, we followed the video tutorial from your website, and it still doesn't loop seamlessly. I read on the forums that we can't have any audio if we want seamless loops, which we don't need. When exporting the project in Final Cut Pro (with Compressor, mpeg2 program stream, CBR 25mbs), there was no audio track on the timeline. Any suggestions why our video loops clean on it's own, but not when synced to 2 other units? Thanks, Angelo News 12 NJ

3 comments

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    Avatar
    RokuLyndon


    When you synchronize videos, the way it works is that the player actually stops and preloads the video each time to keep the units in sync. So, there's going to be a slight delay when the units sync up.

    So, it might not be possible to remove the delay. You can play seamlessly, and you can synchronize, but a seamless synchronize is where you may have a problem.

    Can you send me your sample project file, the bpf file, to <!-- e --><a href="mailto:support@brightsign.biz">support@brightsign.biz</a><!-- e -->? I'd like to see the master and slave project files.
  • 0
    Avatar
    Apucciferri


    I just sent an email with the bpf files, and a link to download the .mpg media if you need to.  

    Please let me know if you have any advice.  

    If we do have to live with this problem, I suppose the longer the loop is the less likely we are to notice the pause on-camera (we are a TV news facility, and these will fill our background monitors).  In this case, what is the longest loop length you recommend when syncing with 3 units?

    Thank you,
    Angelo
  • 0
    Avatar
    RokuLyndon


    You can do a 5 and 1/2 minute loop without any possible drift. The next length to test would be 11 minutes. There's a possibility of 1 frame drift at this length. But, it's not a guarantee. So, if 11 minutes looked good, you can thens 16.5 minutes. It goes in 5.5 minute increments.


    I know of at least one customer that's synchronized 20 - 30 minute clips without any noticeable dropped frames.
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