Audio waveform changes when zooming in V11

Andrew B wrote on 4/7/2012, 3:13 PM
I sent this off to Vegas support in February and thought I would post it here as well in case anyone else has seen this issue.

I do a lot of multicamera projects and then use the audio tracks to line up the different cameras. It works super fast and is very easy - until V11.

Now, with some projects, when I zoom in to a certain point, the waveform changes to something completely unrelated.

Check these out:
Correct audio:


Then I zoom in one level and get this:


Has anyone else experienced this?

As long as I play the zoomed out audio before zooming in it will play correctly. If I zoom in and then play that part of my clip for the first time, it will alwyas play the incorrect audio, no matter what the waveform is showing.

Also, don't think this is some really complex project. It happened with a single track of NTSC DV video and it's associated stereo audio track.

Any ideas?

More importantly, do you all think uncovering this major bug is important enough to earn the "Super-bug-finder-you-get-a-new-FS700-award" from Sony?
I hope, I hope, I hope...

Andrew

ps - I also posted this over in Vegas Audio.

Comments

Former user wrote on 4/7/2012, 3:28 PM
I have never seen this, but looking at your pic, if you notice on your ZOOMED IN timeline, the audio track under the video track matches the audio track underneath it.

Did you add this audio as a TAKE on this track?

Dave T2
Andrew B wrote on 4/7/2012, 3:44 PM
In this project, it is actually a stereo track with different languages on each side. I duplicated the single track and ungrouped them showing the left side in one and the right side in the other.

I have an even simpler version I can show you that does it with only one video and one audio track on the timeline. I will grab those screenshots and post them...

Simple example of the correct waveform:


full size image i here: http://reddogrecords.com/vegas_issue/waveform-error-build-595-zoom-out-correct-sm.jpg


...and now if I zoom in one level:


full size image is here: http://reddogrecords.com/vegas_issue/waveform-error-build-595-zoom-in-incorrect-sm.jpg
Andrew
Former user wrote on 4/7/2012, 3:50 PM
wow, that is really strange. Sorry I can't help since I have never seen this on any of my computers.

Dave T2
Steve Mann wrote on 4/7/2012, 11:00 PM
Since I use PluralEyes, I wouldn't have noticed, but I just tried aligning two cameras by the audio waveforms and I couldn't see any change on the waveform when zooming in. Since you didn't drop a marker, I can't tell what I am looking at on your images.
Andrew B wrote on 4/7/2012, 11:57 PM
Steve,

Take a look at the second example I used. I also will use plural eyes if it is a more complex project, but not for just a couple cameras.

The second example clearly shows how the waveforms change drastically. I can drop a marker in there, but I didn;t think it would make it any clearer.

Remember, I am only zooming in one level.

Andrew
Steve Mann wrote on 4/8/2012, 4:52 PM
My apologies, but looking again at your second example, assuming the change is only one wheel click larger. Yes I see it in your images, but I've never seen that here. No clues.
Erni wrote on 4/8/2012, 7:25 PM
Andrew, can you up somewhere only the audio part? I need see this in my pc. May be can help you.

Erni
Andrew B wrote on 4/8/2012, 8:39 PM
Just to make things even more interesting...it doesn't do it all the time!
It is pretty random as I have done multiple projects using the same formats. One project does it, the other doesn't.
Very odd.
I might just jump back to V10 until I hear anything back from Sony Support.

Andrew
Erni wrote on 4/8/2012, 9:18 PM
In the second image the waveform have an important DC offset. Its not centered. Maybe this is the problem.

Erni
Andrew B wrote on 4/9/2012, 3:35 PM
Good catch.
What's really odd is that the 'incorrect' waveform is actually a bit of audio from the same clip. This video clip has a mono audio track (same recorded to both tracks) so there is never a point where the audio looks like this.

It seems Vegas is incorrectly pulling random audio from another portion of the track, adding a DC offset glitch at the beginning, and placing the audio only on one side.

It seems like a lot of errors all working together!
I just got a reply from support this morning about starting Vegas with [CTRL] + [SHIFT] pressed to reset everything to defauls and clear the cached application data. I will try this a bit later and report the results...