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Weird stripes after rendering with Sony vegas10pro – MPEG Streamclip (v.1.2.1b5)
1. I get several problems after rendering in .avi format in Sony Vegas. First off all after I view it in Windows Media Player the video shows a striped video when there’s movement, as if it is lagging behind in slowed effect while distorting the image with stripes. Anyone know why this might be and how I might fix it?
2. I also have a similar problem after converting from .avi format using MPEG Streamclip (v.1.2.1b5) and convert it to Apple Photo- JPEG (quality 94%). In this case I do not get a slow down effect but my moving images are still distorted by small parallel stripes/lines. It destroys entire video.
These videos are filmed in high definition HD 1800-60i (1920×1080, 29.970 fps). Really can’t figure out the problem and could use some help!!! Thanks in advance!
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16 Replies
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There is the photo,about this problem.
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You’ll need to provide more information.
PC System Info (memory, CPU)
What video codec for AVI?
What bitrate is your video?Also provide some stills of the problem frames.
Does your video appear OK in the Vegas realtime preview window?
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Without seeing a sample of the problem, I would have to guess that you’re seeing interlace artifacts. If I am correct, the faster the movement, the worse the artifact. Second guess – rolling shutter.
Steve Mann
MannMade Digital Video
http://www.mmdv.com -
Yeap, that’s a deinterlace issue!
Google: sony vegas deinterlace
Lots of info there to help you.
Lots of other threads in this forum as well on the very same issue.
You mentioned you had 1080-60i source footage.
So, here is probably what you want to do.
1. Make sure you select the “HD 1080-60i” template for your Project Properties. This matches your source footage. If you are unsure, in the project properties settings you can click the “Match Media Settings”, then select one of your source footage files. Vegas will then select the project settings that matches your source footage. Hopefully, Vegas gets it right.
2. When you bring in your source media into the timeline, verify that Vegas has interpreted the media correctly. Sometimes Vegas does not. Right click the media and click “Properties”. Then select the “Media” tab. Make sure the video “Field Order” value is correct. For HD 1080-60i media, it should say “Upper field first”. If it says “None”, then you will need to select “Upper Field First”. (If your source media is “Lower Field First” then select “Lower Field First”).
3. Now in your Vegas realtime preview window, you should not see any glaring interlace problems (ie. stripes). If you still see those interlace lines, then verify steps 1-2 again.
4. Now when you are ready to render your video, make sure you know what you want your target video format to be.
If your target video is still an interlaced format, then you should be fine. For example, if you are rendering out to “HD 1080-60i”, then you don’t need to do anything else.
But if your target video format is “PROGRESSIVE”, then you need to tell Vegas which deinterlace method you want to use. In the Properties Settings again, select your desired “Deinterlace Method”. Usually, “BLEND” should be OK. For example, if you wanted to render your video out as “Sony Tablet 1080p” or “HDV 720-30p”, then you need to tell Vegas what “Deinterlace Method” to use.
After rendering a PROGRESSIVE video output, you may still see some tiny interlace lines. If you want to try to reduce those lines even more, in the video track, right click the media and go into “Properties” again. There is an option there to “Reduce interlace flicker”. Click that. Render your video out and see if it made any difference.
Again these are all just suggestions.
It all depends on your project requirements are.
I hope that helps!
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The problem is that your footage is interlaced and in your project properties you have your Deinterlace Method set to NONE. This is wrong. You must set it to Blend Fields to get rid of the problem. Never, ever, never set the deinterlace method to none if you are using interlaced footage. Otherwise, it will not deinterlace the footage when it needs to and you will see those stripes in your final output.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Technically, when editing on the timeline, Vegas treats every source media file like it was PROGRESSIVE.
It doesn’t really make sense to edit interlaced videos using the two fields that make up the frame. I mean, imagine editing the upper and lower fields separately like they were in their own separate frame window.
So when editing, Vegas automatic deinterlaces your interlaced video. Vegas does this regardless of whether you set the DEINTERLACE METHOD setting for your project properties or not. But you must check to make sure that Vegas has interpreted your source media files properly as either UPPER or LOWER field interlaced.
If Vegas has properly interpreted your interlace source media files, then you should not see any interlace artifacts (ie. stripes) in your Vegas real-time preview window when editing. If in the preview window you still see interlace lines, then Vegas has not interpreted your source media properly.
The DEINTERLACE METHOD setting in your project properties is important in two areas:
1. If your PROJECT SETTINGS is set to PROGRESSIVE, then you need to tell Vegas what DEINTERLACE METHOD to use.
2. If you PROJECT SETTINGS is set to UPPER or LOWER FIELD interlace, but you want to render as a PROGRESSIVE video, then the DEINTERLACE METHOD must be set for Vegas to deinterlace your final render out file.
If you want to reduce INTERLACE FLICKER more, there is also a REDUCE INTERLACE FLICKER option for source media properties.
Now you also need to pay attention to the FRAME RATE.
If you select a PROJECT SETTING frame-rate that is different from your interlaced video frame-rate, then that can cause your video to have an undesirably effects. Or if you select a RENDER-AS frame-rate for your final render that is different from your source media files, you will most likely see some undesirable effects.
Make sure to select a COMPATIBLE frame-rate for your PROJECT SETTINGS and RENDER-AS setting. If need be, play around with the re-sampling switches. In some situations, it looks better to just turn off re-sampling. For example, when doing a conversion from 29.97 to 23.976 frame-rate.
Good luck!
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I also just wanted to add that using a DEINTERLACE METHOD of “NONE” is a valid option even when you have interlaced source videos that your want to eventually render out as PROGRESSIVE.
It all really depends on how your interlace source video was capture and created in the first place.
For example, if you are using a camera that can capture true full 1920×1080 frames but the camera has to split those frames into upper and lower fields only because of storage bandwidth limitations (slow write to disk/hdd speed), then a DEINTERLACE METHOD of NONE is the correct choice. Here, the upper and lower fields were captured at the exact same point in time. Hence, you will not see any interlace artifacts when the upper and lower fields are joined to create the full frame again.
However, if your camera can only capture 1920×1080 frames using two separate captures for upper and lower fields, then there will obviously be a slight change in time between the upper and lower fields. Here the upper and lower fields were capture at two separate points in time. Hence, you will see interlace artifacts when the full frame is re-created.
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[John Bean] “I also just wanted to add that using a DEINTERLACE METHOD of “NONE” is a valid option even when you have interlaced source videos that your want to eventually render out as PROGRESSIVE.”
While your example is valid, it doesn’t hurt to keep your Deinterlace Method set to Blend Fields in in your example either, which is why I recommend that you don’t change it from this default value. It’s just simpler for people to remember.
Another valid reason to set it to None is if you plan to use a 3rd party deinterlacer like BCC Deinterlace on your footage. So there are reasons to use None, but under normal circumstances, keeping at Blend Fields (or Interpolate Fields for high motion video) works fine when using interlaced footage.
I guess you should never say “never”. 😉
~jr
http://www.johnrofrano.com
http://www.vasst.com -
3. Hello and thanks to all for the information and help. Especially thanks to John R. for helping me out so often. However, even though I adjust the settings to your specifications (and I tried to play with it and ran other settings) each time I get similar result. The images are still distorted. I attaching all the settings and specs as .jpg. Please take a look if you can. Maybe you can find what I did wrong.
(P.S. what is the best settings for Sony Camcorder NX-70U and Editing settings VEGAS 10e, to get best Quality results, and after that EXPORT TO QUICKTIME with “MPEG Streamclip” (v.1.2.1b5) Software to convert for APPLE PHOTO-JPEG 1920×1080 HD ?)
Thanks again!
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There is quite a lot of motion in that shot. You might want to switch the Deinterlace Mode to Interpolate Fields and see if that gives you a better result. Interpolate Fields will do a better job where there is lots of motion.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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