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Sony Vegas Movie Studio Platinum 9.0 and Youtube interlace artefacts
I am using Sony Vegas Movie Studio Platinum 9.0.
Before, I was able to render videos in AVCHD 1920×1080 .mt2s format and upload them to Youtube, where they would display nicely without interlace artefacts.
Now when I try, the videos on Youtube have significant interlace artefacts. They are not there before uploading to Youtube, and only appear after Youtube has processed the video. I am unsure as to what has caused this change since I am still using the same software.
Is there any setting to prevent them occurring?
In Vegas’ settings, I have:
Project>Properties>Video>Deinterlace Method>Blend Fields ie it’s not set to ‘None’. But it still seems to have this problem.
I am new to Sony Vegas. Is this the correct way to render deinterlaced video?
Has anyone else experienced this problem on Youtube recently and found a way round it?
Thanks in advance. -
7 Replies
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[James Smith] “Project>Properties>Video>Deinterlace Method>Blend Fields ie it’s not set to ‘None’. But it still seems to have this problem.”
That’s exactly what you should be using. I can’t imagine why it isn’t working either. Did you change you render template? make sure the field order is set to “None (progressive video)” so that it deinterlaces correctly.
Also make sure that your media is being correctly interpreted as interlaced if it is. In other words, right-click on an event, go to the Media tab and check that the field order matches the real field order of the media. If the media is interlaced but in Vegas it shows as none progressive, Vegas will not know that it has to deinterlace it.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Hi John,
The render template has stayed the same: AVCHD 1920×1080 PAL.
The field order was set to Upper field first, so I changed it to ‘None (prorgressive scan)’ as you suggested, but it didn’t make any difference.“Also make sure that your media is being correctly interpreted as interlaced if it is.”
The media is an .m2ts file from a Panasonic SD 60 which as far as I am aware is interlaced.“In other words, right-click on an event, go to the Media tab and check that the field order matches the real field order of the media.”
If I understood you correctly, both field orders were set to ‘upper field first’ when I checked just now.You can see an example of the interlace effects here which are present when there’s movement in the video (You can see them best at full screen 1080):
https://www.youtube.com/watch?v=lI8fQost7w8
The video looks really nice on the software players on my computer, but not so nice on Youtube due to the artefacts.Funnily enough, as a test, I just re-uploaded an old Sony Vegas video to Youtube I had on my hard disk that I had previously uploaded to Youtube and know displays ok there with no interlace lines. This second time of uploading the same video now has it appearing on Youtube interlaced, suggesting that something’s changed at Youtube’s end, not mine. Is this possible? Or is it some error or misunderstanding at my end?
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[James Smith] “Funnily enough, as a test, I just re-uploaded an old Sony Vegas video to Youtube I had on my hard disk that I had previously uploaded to Youtube and know displays ok there with no interlace lines. This second time of uploading the same video now has it appearing on Youtube interlaced, suggesting that something’s changed at Youtube’s end, not mine. Is this possible? Or is it some error or misunderstanding at my end?”
I think you may have found the problem. I thought that YouTube just changed the way they encode videos. I haven’t uploaded any since this change. If an older video is now showing a problem, it’s YouTube and not you.
Still if you render progressive and there are no interlace lines in the render, they should not appear even if re-rendered as interlaced. I don’t see why YouTube would actually add interlacing so this is quite strange. Be careful, that the video player you are using is not deinterlacing and the video really has these artifacts and the player is hiding them from you.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks John.
Be careful, that the video player you are using is not deinterlacing and the video really has these artifacts and the player is hiding them from you.
I hadn’t thought of that. The 2 software players I’m using are Powerdvd and Splash Lite. It could be they are deinterlacing automatically without me being aware.
[by the way, Splash Lite is a nice free software player for anyone that needs to play .m2ts files].Maybe Youtube have changed something at their end so that now when they process a video, they no longer remove interlace artifacts….
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Just found this message posted on the Youtube help forum on 8th June 2011, straight from the horse’s mouth, so to speak, and it appears that Youtube is no longer deinterlacing uploaded videos:
“YouTube has stopped trying to de-interlace 1080i uploads altogether, because their process was screwing up almost all 1080p uploads while still doing an unpredictable job with 1080i. And yes, most people DO de-interlace and re-encode their videos before uploading, because they have a far better chance of looking right if WE do it rather than depending on YouTube. ”
https://www.google.co.uk/support/forum/p/youtube/thread?tid=39fe72ba0b873b32&hl=enAlso checked my footage in VLC player with deinterlacing set to off in the options, and it appears that my Sony Vegas-rendered movies are interlaced.
I have managed to produce a very large deinterlaced .avi file in Sony Vegas 9, but when I try to produce a AVCHD 1920×1080 .m2ts file, the file comes out interlaced, despite having in Vegas’ settings:
Project>Properties>Video>Deinterlace Method>Blend Fields ie it’s not set to ‘None’.
So the problem remains, has anyone managed to successfully produce a deinterlaced AVCHD 1920×1080 .m2ts file in Sony Vegas Movie Studio Platinum 9.0, from raw camcorder footage (1920×1080 interlaced .m2ts)?
If so what options in Vegas were used?
Thanks in advance for any advice/help. -
The Sony AVC codec doesn’t let you render 1080p in an AVCHD format (M2TS), but you can use Sony AVC to render 1080p AVC in an MP4 container. This is what the Internet 1080p presets use.
As I understand it, AVCHD does not officially support 1080p although some cameras can produce 1080p.
In any case, setting the Deinterlace Method to Blend has no effect if the output format is interlaced (as in the case of AVCHD 1920×1080). Vegas uses the deinterlace setting only if rendering to progressive.
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Thanks Matt,
Looks like it was a noobie mistake on my part, trying to do a conversion that wasn’t supported.
Rendering to .mp4 has produced a useable video now.
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