Audio is present, but waveform is missing

dirtynbl wrote on 1/14/2014, 10:37 AM
Seems like this issue goes back to Vegas 10 and doesn't really have a solution.

I've tried 10 and 12 and have had no luck in either getting rid of this and it's phenomenally annoying.

Here's video of the issue that gets really clear at about the 40 second mark:

Certain random video files have no waveform unless you really zoom in on the timeline. Then, suddenly, they appear. MTS files from my Panasonic appear with no waveform (just a horizontal straight line), but MOV files from a Canon DSLR show audio always. If zoom in (up arrow key) I can see the wavform, but I have to be pretty far in. As soon as I zoom out a bit the waveform disappears. Sometimes I briefly see flashing "Peaks Temporarily Unavailable" message, but that's like 20% of the time.

Is there a fix?


TheHappyFriar wrote on 1/14/2014, 10:42 AM
Normally a reboot fixes this for me, if it happens. Unless it's the audio codec itself. Can you render it out to a new file (WAV) and have it work ok?
dirtynbl wrote on 1/14/2014, 1:41 PM
These waveforms and clips are sometimes from 1 - 2 hour long video files. It's completely impractical to render them as a separate wav and reimport them. Vegas is obviously reading them because zooming in on the timeline makes the waveform appear. So this is obviously a bug, but I'm wondering if there's a workaround.
Steve Mann wrote on 1/14/2014, 11:34 PM
Try hitting shift+up-arrow a few times. This increases the display of the waveform.
TheHappyFriar wrote on 1/15/2014, 6:33 AM
If rendering to a WAV works, that's a work around. Nothing impracticable about rendering a couple hour WAV. Takes a minute or to, less time then NOT doing it and dealing with the LACK of waveform's, that's for sure.
dirtynbl wrote on 1/15/2014, 12:18 PM
That's not the issue. It's clearer in the video I posted, but it's not a matter of the audio waveform needing to be larger...Vegas just isn't showing it (arbitrarily) on some clips until I zoom into the timeline which is absurd.

Even if I crank up the waveforms to the highest they'll go, nothing changes.
dirtynbl wrote on 1/15/2014, 12:19 PM
If I have 10 locations and 20 x 2 hour videos from each it is pretty impractical.
rstrong wrote on 1/15/2014, 10:04 PM
Delete the .sfk file, it will rebuild itself the next time you open that project, and the waveforms should appear.

R. Strong

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TheHappyFriar wrote on 1/15/2014, 10:46 PM
If I have 10 locations and 20 x 2 hour videos from each it is pretty impractical.

The way I look at it is like this: if a workaround takes me 2 hours to do, but it takes me a day+ to find the "proper" way, I do the work around. Put all the video files on the TL, remove the ones that draw waveforms, make regions for each event, script render them to WAV & replace the audio in your working project with the proper wav in the TL (in the help file, look up "Using Takes as Alternate Versions of Events").