Help - track motion does not suddenly work? ?

Christian de Godzinsky wrote on 5/30/2010, 12:58 PM
Hi,

I'm in the middle of a larger project that is suddenly behaving very strangely.

It consists of source from two DV (AVI) cams, synced manually, on two tracks, and only one additional audio track. I still do not fancy the multicamera mode since I want to keep all tracks separate during the whole project, instead of letting it combine everything as takes on one track...

During the syncing I used the track motion to halve the size of both tracks, and placed them side by side in the output (for easier vievwing of both - during syncing). This is a method I use often and before, without any problems in earlier versions of Vegas.

After the sync and most of the cuts between A/B I kept both source on separate tracks, and returned the track preview to normal size.

ThenI contunued the editing. Suddenly the track motion does not do anything (both tracks behaving the same). Whatever track motion I set the output of the track just stays at the default. An much earlier saved version of the project lets me use track motion without a problem.

Is there somewhere an override for the track motion? Why does it not suddenly work? This drives me nuts...

Running Vegas Pro 9.0e (32-bit - mainly due to lacking 64 bit FX support) on an WIN7 64 bit quad core with 8Gbyte DDR3 ram.

Anyone else seem similar behavior? Is there a solution? Can a project be corrupt so that the track motion gets dysfunctional?

Cheers,

Christian

EDIT: I found the problem. Somehow there had sneaked in an additional key frame, one frame later than the first frame, in both track motion windows. This is rather hard to spot, since you have really to zoom in very far to see that there are two diamond shaper object on the track motion timeline.

I am a little confused about how they got there in the first place. I have not a single time during this project used the "sync cursor" function in the track motion mode. It is often the culprit if you forget it selected.... Swear that I have not caused these additional key frames. One proof is that BOTH tracks had these additional key frames exactly at the same location at the very beginning of the track (1st and 2nd frames)... Very odd...

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Comments

xberk wrote on 5/30/2010, 4:16 PM
Christian -- glad you found the answer. I have done similar things myself and that's the first thing I check is the keyframes when an odd behavior like that appears. Isn't sync cursor the default? That's how it happens so easily. A keyframe can be added WITHOUT really making a change -- just a click that highlights a box and a keyframe is added -- I've gotten use to watching for the "white diamond" that appears on a keyframe when it is the active keyframe. This avoids creating a new keyframe just next to another keyframe (so close as to not be noticed without zooming ) ..

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richard-amirault wrote on 5/30/2010, 8:50 PM
During the syncing I used the track motion to halve the size of both tracks, and placed them side by side in the output (for easier vievwing of both - during syncing). This is a method I use often and before, without any problems in earlier versions of Vegas.

Whatever works for you, but for your (and anyone elses) info let me mention how I manually sync tracks (until I can afford PluralEyes)

Basically I do it the same way as PluralEyes. I use the audio. I play each track seperatly to get some single refrence point. And cut off any extra at the start of each clip. Then I expand the timeline (left - right) so that the audio waveform is more easily seen. Then slide each track so that the audio waveforms match up exactly.

note: I combine left & right to a single waveform to make it even easier. None of my "clients" are looking for stereo so this works. If you need stereo you can seperate the tracks after the sync process if you'd like.

Just be sure to expand the track sufficiently to easily see the waveform. The best way is to keep expanding until you've gone too far, then close it up a bit.

Using this method I've just edited a 3 camera shoot with an additional audio track from a digital audio recorder (dual wired lav mics into an Edirol R-09) Note: I *did* "tweak" the sync over the course of the hour as I noticed the Edirol track slightly lagging behind the video, but that was no problem.

The editing was with Vegas' Multi-Camera mode.

I've posted a "teaser" for my full episode on YouTube.

biggles wrote on 5/30/2010, 9:08 PM
In times BPE (before plural eyes) I would synch audio by sending one audio track to the left channel and one to the right - with cans on it is easy to pick the synch spot.

I got this tip from someone else on this forum - not my original idea!

Wayne