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Rendering Problem with Constant Bit Rate
Hi,
I am trying to render a 20 minute video that combines scanned photos and video. I think the constant bit rate default in Vegas is 6,000,000. I tried both that and 8,000,000 and the video seems to studder or hitch slightly, especially on any movement. Any suggestions? Would it be better to use variable bit rate with two pass even though it shouldn’t need that? I have done larger projects of an hour plus and not seen this problem.
I have looked at the video in the timeline and a monitor and it seems fine.
Also, in the future, what is the best setting for constant bit rate?
Thanks for any help.
Dan Myers
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5 Replies
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If your ultimate destination is DVD, then use a CBR of 8,000,000 for anything less than 70 min. long.
Longer than that and you need to use a bitrate calculator and get the VBR settings from there.
My personal favourite is the one found at https://www.johncline.com/bitcalc110.zip
I would also do this as a 2-pass encode (render) simply because it will help to maximize quality. -
Thanks Mike…I will give it a try.
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Mike,
How do I do a two pass in the constant bit mode? It does not allow me to access the two pass setting unless I go into variable mode. Do I make all the VBR settings 8,000,000?
Dan
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Dan,
What Mike said was to do a two pass in VBR, only if you are longer than 70 minutes. If you have stuttering at 8000 Kb, then I would check to see if my renderer is corrupted. Have you ever installed a codec pack?
Jeff
2-Xeon X5680 @ 3.33, EVGA SR-2 Mobo, 48GB DDR3, GTX 580 3072MB, 16TB Attached Storage, Win7, Vegas 11 x64
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If your output is for DVD, check your deinterlace method in your project properties. It may be set to none when it needs to be blend fields or interpolate fields.
My system specs: Intel i7 970, 12GB RAM, ASUS P6T, Vegas Pro 10e (x32/x64), Windows 7 x64 Ultimate, Vegas Production Assistant 1.0, VASST Ultimate S Pro 4.1, Neat Video Pro 2.6
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