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SVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?

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Rikki DamanSVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?
by on Jul 31, 2012 at 12:48:50 am

Just output my first render on my new PC with SVP 11 and found a problem...







The white flash should sync perfectly with the beat of the music kicking in.

It does on the timeline in Vegas, and when I preview inside Vegas but the MP4 file it outputs is identical to the YouTube upload, the video runs a fraction of a second earlier than the audio.

Is this a known fault and is there an offset I can enter or will I just have to manually nudge my audio tracks under SVP11 compared to 8 ?

Thanks folks :)

Rik


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Shoestring VideosRe: SVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?
by on Jul 31, 2012 at 2:48:48 am

i got over a minute into this video and didnt see any white flashs...maybe im just blind.

But to answer your questions I havent experienced what your talking about.


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Rikki DamanRe: SVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?
by on Jul 31, 2012 at 5:27:25 am

Hi there,

4.40 would be an example - I did put the link in the YouTube URL but this forum software stripped it out - doh!

R


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Shoestring VideosRe: SVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?
by on Jul 31, 2012 at 6:37:08 am

i didnt see a white flash at 4:40 so i guess you meant 4:46

try rendering to mpeg2 or xdcam and see if the problem repeats.

also you didnt mention what output setting you used but again i had to assume you used mainconcept avc mp4


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Rikki DamanRe: SVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?
by on Jul 31, 2012 at 8:37:58 am

Re: SVP 11 - Rendered Sony AVC/MP4 file

Its all in the title ;)

I'll give another encoder a shot later, dont really want to use something else as Mainconcept is dog shit, especially with GPU rendering enabled it looks like crap.

Will give it all a go later tho. In the meantime a workaround (dont we love Vegas and its work arounds) is to make project, grab audio and move it backwards 2 frames


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Shoestring VideosRe: SVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?
by on Jul 31, 2012 at 9:20:53 am

you could also take the outputed mp4 back into SVP and see if the audio peaks synch properly with the rendered video (as compared to the project audio peaks)


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Rikki DamanRe: SVP 11 - Rendered Sony AVC/MP4 file - audio seems to sit just slightly behind video?
by on Aug 15, 2012 at 12:04:23 pm

It seems to be out a touch too.

What I found last night was the sync on YouTube drifts out more and more depending on how long the video is :S







Thats at 12 minutes.

EDIT: add the ?hd=1&t=12m6s to end of link


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