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Problem with tracks splitting along fractious lines
rironin [Avatar]
Newbie Joined: Aug 20, 2009 23:01 Messages: 16 Offline
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I have been seeing an issue a lot with editing multiple layered tracks that seems like it has to be an error, something that shouldn't ever really happen. Sometimes when splitting tracks, one of the tracks will not split on the same frame as the others. Oddly, it won't split on a frame at all; the cleavage line, as it were, appears a fraction of a frame over from the other split tracks, at a point that cannot be reached by advancing frames one by one. This image will probably help explain what I mean:



That was the result of attempting to split all tracks at the beginning point of one of those tracks. The top track split along a slightly different line instead.

The result of this is that when I attempted to paste in some video into the top track, instead of pasting in and bumping all the layered tracks over, the lower tracks were all stretched out under the pasted content instead of moving over with the top track. Other problems include issues where you're trying to get all the tracks to end at the same time, but one ends a split-second before the rest, and you then have to try to reduce the lengths of all of them until they are all finally ending on the same beat.

It seems like this is something that should never happen in PowerDirector. If the "atomic" unit of video is a frame, and all tracks are made up of frames and start on a frame, then they all have to end on a frame. PowerDirector should not be able to split tracks up into fractions of a frame if it can't then edit other tracks down to that granularity. As is, these "ragged edges" have to be dealt with in a very tedious fashion.
James Dotson
Senior Contributor Location: Tennessee Joined: Aug 24, 2009 20:40 Messages: 3066 Offline
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Can you give more info on what you are doing? What format is the video that you are editing? Do you have the timeline zoomed in? What steps do you use to split each clip? If you save the video and reopen it, does it look the same?

I don't doubt what you are saying, but I have edited hundreds of short movies and I have never seen this, so I don't know how to reproduce it and confirm what is happening. __________________________________
CORNBLOSSOM
vn800rider
Senior Contributor Location: Darwen, UK Joined: May 15, 2008 04:32 Messages: 1949 Offline
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This thread also dealt with something similar. I'm not sure whether the issue is "real" or "perceived" so to speak in that I never really delved into the final production accuracy. Certainly, visually, in the timeline, the scrubber does not always follow the frame markers in NTSC projects.

http://forum.cyberlink.com/forum/posts/list/9864.page

in particular

http://forum.cyberlink.com/forum/posts/list/9864.page#43179

I'm afraid I got no further.

Cheers
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rironin [Avatar]
Newbie Joined: Aug 20, 2009 23:01 Messages: 16 Offline
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In this particular scene, I'm using HD mpg video captured from my camcorder using PowerDirector, as well as HD-sized JPG and PNG images. I'm layering background video/images with bluescreened video of characters or models, with transparent PNG images on top of that to mask the objects and characters being inserted. Fairly simple stuff, really - putting my characters into locations and giving the appearance of a helicopter flying past and behind buildings.

I can't say exactly how things came to be this way. I drag clips onto the timeline, and then isolate the video I want by either finding specific frames and using the split command or dragging the edges of the video to shorten or lengthen it. Somehow in this process, it's as if the entire track got bumped a fraction of a frame off kilter.

In the image I posted, the timeline is zoomed in all the way. If you try to advance frame by frame at that point, you will see that it is impossible to get the ticker to rest on the split lines of both tracks - which one would think would not be possible. This causes the most problems for me when I'm stacking up those layers. With the master track slightly off, trying to slide the extra layers so that they are the exact same duration and timing is impossible. When you're zoomed out, it looks like it matches, but then you find out otherwise. If I try to split all the tracks at one point, and then drag a new video clip into the master track right before the stack of layers, normally PD would move the master track over to make room, and also move all the layers over underneath it. However, since the master track is really ever so slightly bumped, as in the image, all of the layers below don't get moved - they get stretched out and messed up.

That's what's goin' on. Not sure how it starts or why.

Cranston
Senior Contributor Location: USA Joined: Aug 17, 2007 02:26 Messages: 1667 Offline
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Hi rironin,

I have never had the problem you describe. If I place my scrubber at a certain position and Split say 6 or 7 tracks at that same scrubber position, they always all Split on the same frame, without one of the tracks being slightly off by one or two frames.

Now for what it’s worth
(And I’m not sure if this pertains to your situation of how or what you’ve been doing).
But remember, in PD8 you can only Split every third frame. If you create a Split, you have to click on the frame advance key 3 times before you use the Split function again.

Only in the Trim Room window, can you trim at the single frame by frame level.
So to get that frame by frame accuracy in your cutting, you must use the Trim Room.
I often use Split to narrow in on an area, and then open a track(s) in the Trim Room, if I need the precision to slice off one or 2 extra frames.


Click here PDtoots for a collection of PowerDirector Tutorials and Tips
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I have this happen all the time and seems to be related to deleting segments that had transitions. Which is why I don't add transitions until I have the movie edited the way I want. It also impacts chapters if you created those.

If you delete a segment that you have applied a transition to, then later delete the segment. I find often that later clips the non master tracks have all shifted the distance of the transition effect to the left. I then have to move them all back to the right to the end of the movie. It seems like it doesn't know how to adjust the other tracks based on the transition length. The chaptes also all shift. I haven't tried, but if you can remove the transition before deleting the segment it might help. Also if you undo after deleting a segment, it doesn't put the chapters back correctly in many cases. Windows 7 Ultimate 64bit
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