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  1. #1


    Member Since
    Jun 29, 2013
    Posts
    13
    Quick Time Freezing
    When I play a video from my Photos app on my iMac. it periodically freezes and the audio continues for a couple of seconds then stops. In about 5 seconds the frozen video starts up again and fast forward's for 3 seconds and then everything plays normall for another 30-40 seconds when the abnormal behavior repeats itself. This also happens with Quick Time screen recordings. Not sure if this is related but many videos at websites turn blank white with a gray progress bar on the bottom with no audio, when I press the play arrow, I am running Sierra 10.12.1. Thanks Forummers

  2. #2

    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, USA
    Posts
    2,947
    Specs:
    L2014 Mac mini macOS 10.12, iPhone 6 iOS 10, iPad Pro 1 12.9" iOS 10,  Pencil 1
    More information regarding your iMac is needed?

    What model and year?
    Processor?
    Ram?
    Drive space available?

    Also, are the files on the internal drive or are they on an external drive?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  3. #3


    Member Since
    Jun 29, 2013
    Posts
    13
    Quote Originally Posted by ferrarr View Post
    More information regarding your iMac is needed?

    What model and year?
    Processor?
    Ram?
    Drive space available?

    Also, are the files on the internal drive or are they on an external drive?
    iMac 21.5, Mid 2011
    2.5 GHz Intel Core i5
    12G 1333 MHz DDR3
    2.11 TB available of 3 TB
    No external drive

  4. #4

    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, USA
    Posts
    2,947
    Specs:
    L2014 Mac mini macOS 10.12, iPhone 6 iOS 10, iPad Pro 1 12.9" iOS 10,  Pencil 1
    How large are the video files? Your iMac should be able to handle the videos. Have you tried running Disk Utility > First Aid on the drive?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  5. #5


    Member Since
    Jun 29, 2013
    Posts
    13
    Yes ran First Aid.
    Here is a sample:


    https://youtu.be/CmWeocQWk8o

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