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  #1  
Old 11-05-2014, 08:04 AM
ottrubay ottrubay is offline
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Join Date: Nov 2014
Location: London
Posts: 4
Default Video Playback Problem - very strange - please help!

Hi everyone,

I'm facing a strange video-playback-problem:

The video is loaded in Pro Tools, visible in the timeline, and when I scroll through the session, the video scrolls through all the frames. But as soon as I hit play, the videopicture jumps back one frame, then freezes, and when I stop the playback, the video jumps forward one frame to where it was in the beginning.

Audio plays without any issues.

It seems, as if video goes offline as soon as I hit play.

Strange thing is, I've worked with the same session, same videofile for weeks, never had the problem.
I opened older sessions and other projects, all have the same problem all of a sudden.

I checked different quicktime formats and codecs, all same problem.
Videofiles play back normal in quicktimeplayer.

I opened the same session on an other pro tools/other computer, there everything works fine.

I re-installed quicktime, trashed all prefs from Pro Tools etc., nothing helped.

I didnt change anything in my system recently, except installing Altiverb a week ago, but after that it worked fine.

my specs:

Pro Tools HD 8.0.1cs2
Digidesgn 96 interface

Mac OSX 10.5.8

MacPro1,1
Dual-Core Intel Xeon (Intel 80486)
2.66 GHz
2 GB


I really need some help here!
Thanks everyone!

Tobias
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  #2  
Old 11-05-2014, 10:20 PM
lode lode is offline
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Join Date: Sep 2004
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Default Re: Video Playback Problem - very strange - please help!

How about other sessions? Video ok on older versions of that session?

About once a year i encounter a bug where my a session will suddenly stop displaying video when recording. Probably not the same bug, but the solution is to import the tracks into a new healthy session, and suddenly it works like nothing is wrong again...
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PT 10.3 & 11
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HDX 1 via Omni
Blackmagic Intensity Pro
Waves Broadcast/Production, C4 & NPP
Izotope RX, Altiverb
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  #3  
Old 11-06-2014, 01:03 AM
ottrubay ottrubay is offline
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Location: London
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Default Re: Video Playback Problem - very strange - please help!

The problem is on all the sessions, also older projects that were fine.
It also occurs when I open new sessions with new videofiles...
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  #4  
Old 11-06-2014, 01:09 AM
ottrubay ottrubay is offline
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Default Re: Video Playback Problem - very strange - please help!

I also found a thread with a similar problem (although my video is not black, and visible in the timeline, and also when I scroll through the session):

http://duc.avid.com/showthread.php?t...ssion+Playback

but the solution there, with the two monitors, doesnt fix my problem.
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  #5  
Old 11-10-2014, 11:38 AM
ottrubay ottrubay is offline
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Join Date: Nov 2014
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Default Re: Video Playback Problem - very strange - please help!

So afterall I did a clean uninstall and installed ProTools again - now the problem is gone - finally!

Didn't find out what it was though...

thanks for help everybody,

T
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