Walker Controller Issues

[C Johnson]

When using the Walker Controller Window to play bullets and transcribe 
videos in CLAN, we have been having issues with the video skipping and 
repeating itself. After a lot of troubleshooting:

   - Moving the video/ transcript to the computers desktop instead of 
   working off of our network drive.
   - Updating Quicktime and CLAN, making sure all program updates were 
   installed on iMacs
   - Playing around with video formatting using VLC (Converting to various 
   lower bit rates).

We have not been able to resolve this issue. I've noticed that playing the 
videos in CLAN by clicking F6 to the left of a bullet without the Walker 
Controller window open or just clicking the play button on the video that 
is open on CLAN does not not cause the video to skip around. 

Both of our computers: A Windows 7 PC (RAM: 4 GB, 64-bit operating system, 
 Processor: Intel Core i5 650 @ 3.2GHz 3.10 GHz) and iMac Desktop Computer 
(All updated to current apple software) are having this issue. 

Our videos average at ~40 minutes total with a data rate of 1.5kbps, Total 
bitrate of 1633 kbps, and frame rate of 29 frames per second. The audio for 
these videos is 129kbps and sampled at 44 kHz. They are in .mp4 format.

We are working on transcribing samples of stuttering children, so this is 
especially problematic. Any input on how to resolve this issue would be 
appreciated!

Thanks so much,
Chelsea Johnson
cjohn3290 at gmail.com

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