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Rendered MP4 videos with audio out of sync
Hallo there, I’m new in this forum!
Anyway, I have a problem that is driving me nuts, since I connot solve it in any way!
The problem is similar to the one in this post, by the way: https://forums.creativecow.net/thread/24/958921I edit .ts files in Vegas 12 and everything is fine, but whenever I render it, it gets half a second of out sync audio. I usually use Mainconcept and Sony AVC to render in mp4 (and with the settings of “Internet 1280×720 30p, but it happens with 1920×1080 too).
The strange thing is that with Windows Media Player it happens if I touch anywhere in the progress bar (not if I don’t touch anything, during the first play of the video), but with other players such as Media Player Classic the problem doesn’t come out! The real problem is that if I upload the video on youtube the problem persist…
In the past I didn’t had this kind of mess when I rendered, so what could it be? I have to select something in the Preferences or change some settings?
I could need of help urgently, since I use vegas for my work.
P.S. I updated my system with the last K-Lite codec pack, so I don’t think is a codec problem.
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4 Replies
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Try playing back the video on a different computer system. I’ve seen where some files were so large (and full of data) that the system hardware couldn’t keep up, hence the sync issue.
On a side note- why would you install a codec package when your Sony software has a full, professional, codec suite included? I’m certainly no expert on codecs but if you read quite a few of the threads pertaining to user problems, it’s usually caused by what you installed.
Dave
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[Dave Osbun] “On a side note- why would you install a codec package when your Sony software has a full, professional, codec suite included?”
Sony does not install any codecs into any codec subsystem on Windows. Video for Windows (Vfw), Directshow or Media foundation. They are all separate and unique. Vegas codecs can only be used by Vegas and nothing else. Vegas goes directly to its own decoders and encoders outside of AVI. Vegas supports Vfw (AVI files only) but not the others. Quicktime is also unique and separate from the others and Vegas supports that subsystem. Vegas bypasses Quicktime, using its own decoders, for typical DSLR/Digicam MOV files which are AVC video and PCM/AAC audio.
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This computer is new and I made it built to support big software and things like that.
Anyway the out of sync persist on other computers as well, when I open the rendered video files….Uhm…I’m not an expert about external codecs, I used K-Lite because it usually worked fine.
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Anymore ideas?
I’m kinda of stuck with my work, here…
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