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dropped frames during capture
I am working with mini DV tapes. When I go to log and capture I try to log the clip then batch capture. When that doesn’t work I try to capture now. If there are dropped frames it is supposed to seperate the clip for me. That never happens, it just stops capturing. So then I go back and log the clips individually, and batch cature. I have trouble shooted and used both the log and capture window and the batch capture under the file folder. I have also checked my audio/video settings, user settings, system preferences, everything to make sure that it is all connected properly. Is there some button that I can push or box I can check to skip the dropped frames or make sure the software does it’s job by seperating the clip? Most of the time it’s only about 4 frames that are being dropped. If you have any other suggestions please let me know. I don’t understand why a 4 hour log and capture last about 8 or 9 hours and still have nothing to show for it. Help
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7 Replies
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What type of hard drives are you using?
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i use a lacie, i have also ruled out the camera, because it works fine for my boss. plus the hard drive is brand new.
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how is it conected to the computer
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everytyhing is connected by firewire. that’s the safest way.
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If the hard drive and the camera are conected to the same firewire bus that could be the issue. I have had droped frames before when capturing or laying back to tape when both camera and drive are attached to the same firewire bus. It is best to have the camera and drive on seperate busses it is even better if the drive is conected via sata ot esata which is 2x faster then FW800 and 4x faster then FW400.
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both the camera and the drive are plugged into the monitor. i have a mac os x. i was thinking if i had a firewire hub it might be easier. does it make a difference that i was capturing and using the open project file off of the drive? what i mean is should i use the project file off of the desktop instead?
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[AmyStar] “both the camera and the drive are plugged into the monitor.”
Then they are running of of the same firewire bus.
[AmyStar] “i have a mac os “
This has nothing to do with the number of firewire busses that a computer has.
[AmyStar] “i was thinking if i had a firewire hub it might be easier.”
All that will do is increase the number of devices that you can connect to the one firewire bus.
[AmyStar] “does it make a difference that i was capturing and using the open project file off of the drive? what i mean is should i use the project file off of the desktop instead? “
I always prefer to keep the project on a different drive then the media drive.
Think of a firewire bus as a pipe, you can only send so much through a pipe at one time. when capturing from tape to a FW drive that is connected to the same bus, the camera sends a data stream from the camera to the computer, the computer then in turn sends a data stream to the hard drive. The data douse not go directly from the camera to the drive. While one data stream a lone will not enough to be more then the pipe can handle. At times the two streams (1 camera to computer, 2 computer to hard drive) it has the possibility of being to much for the one firewire bus to handle. Usually it is ok, but not always. I would try capturing to a different drive not on same firewire bus. Ether add a a firewire card to the computer thus adding a second firewire bus, or try capturing to a drive connected to a different connection, like eSATA, don’t use USB it is not cut out for video, you can also try capturing to a second internal drive, don’t capture to the system drive, it has enough to do running the OS and applications.
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