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Yet another mp4 bug in 9.0c – combining mp4 clips
Last week I learned that Vegas Pro isn’t capable of combining mp4 clips with jpgs. A fine mess thanks to Sony. I wonder how many months they’ll take to fix that one?
Today I realise that vegas pro is adding little noise cracks when I join two sony avc (.mp4) clips that were prerendered.
It’s impossible to predict where vegas will add the cracks and pops, but when you look at the audio waveform it’s clear to see how vegas has decided to impose some noise somewhere on the video. This is deeply disturbing. I guess I’ll have to render my intermediate clips in avi maybe? It’s just that rendering sony avc is so fast.
Has anyone else noticed this problem?
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3 Replies
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The AVCHD + JPG problem is well documented. Vegas Pro 9.0d will be announced this week at NAB so let’s hope it’s one of the fixes.
I haven’t come across the audio problem. I don’t see how Vegas could insert crackles and pops into the audio that would be visible in the waveform. If it’s in the waveform it might be in the file. Double check with another audio application like Sound Forge or Audacity to be sure. Also check that it’s not your audio device.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
The clicks are definitely added after importing two or more .mp4s into a new project.
They appear in random places, and they are not in the original. It’s not a sound card issues because once they appear, they appear in the same place.
They are visible in waveform once you figure out where they are, and it’s clear from their ‘texture’ that they’ve been superimposed on top of the original soundtrack because they have a higher frequency. If you don’t believe me I will take a screenshot next time it happens, but they are plainly visible and audible, and they have happened in other projects too now that I think about it.
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The Vegas Pro 9.0d update lists the following:
* Fixed a bug that could cause clicks when using certain Track EQ automation settings.
Perhaps this will fix your problem?
~jr
http://www.johnrofrano.com
http://www.vasst.com
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