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Vegas render looks good but not the DVDA video
I just recently started using Vegas 9 Platinum and using Vegas put together video of football highlights shot in HD on a Canon HV30. I imported the video into Vegas in HD. I then created a 15 min video which includes some still images with audio and the video with the original audio. I want to burn it to an SD DVD.
Looked through the Vegas help and this and other forums to determine the best way to render and followed the guidance. I first rendered the video with MainConcept MPEG2 (Template: “DVD Architect NTSC Video Stream”) and then the audio in Dolby Digital AC-3 AC3 Studio (*.ac3) – “Template: Stereo DVD”. Both with same file names so the audio imported automatically into DVDA. When I then go into the Renders folder and play the newly rendered MPEG video file using Windows media, the quality is very good with very few artifacts.
I then add the newly created video render into the DVDA project window (both video and audio import with no problem), and I set up the simple menu structure with just a five chapters. When I use I use the DVDA Preview function the photos with voice-over play just fine, but the video is not very good, lots of artifacts and any horizontal lines/images in the video (for example bleachers, lines on ground, tops of buildings) show really major flickering; there is pixellation of the grass on the field as the camera pans, and the uniforms of moving players show some pixellation as well – generally looks very grainy. Audio works fine throughout. I then burn the DVD which has these poor results.
Frustratingly, when I first made the trial video some weeks ago, the video quality was a bit better, though it was my first attempt and I unfortunately did not write down the settings I used ( do not think I rendered the video and audio separately at that time; but it played in DVD players and on PCs).
I think the steps I described above are the correct ones to follow, and normally the result should be a DVD of better quality than if I had shot the video on SD to begin with…but this is not the case!
Any help much appreciated!
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3 Replies
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I thinkI would probably downrez the Hd to SD in the camera when I am capturing. Then make sure that the project properties match the clip properties (lower field first etc) Sounds like you are having interlacing and fiels order problems.
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Terry – Thanks for your post. I’d read somewhere that it was better to capture the HD and then down-convert…maybe that makes things more difficult…but I’d like to avoid recapturing the video if possible as I then have to re-sort through 240 clips to get 30 or so I’m using. Perhaps I can proceed another way?
At your suggestion I took at look at both the project properties and clip properties
PROJECT PROPERTIES:
Template: NTSC DV (720×480, 29.970 fps)
Width: 720
Height: 480
Field order: Lower field first
Pixel aspect ratio: 0,9091 (NSTC DV)
Frame rate: 29.970 (NTSC)
Full-resolution rendering quality: Good[Perhaps this should be set to “Best”? (I’ve just seen that Vegas help says “If you’re using high-resolution stills (or video) that will be scaled down to the final output size, choosing Best can prevent artifacts”)]
Deinterlace: Blend
[Vegas says this setting “uses contents from both fields and works well for high-detail, low-motion video” whereas Interpolate “Uses a single field at a time and works well for high-motion, low-detail video”…not sure which is best for football game action??]
CLIP PROPERTIES:
(90% are HD; 10% non-HD)
Here are the properties from one of the HD clips (all HD clips should all be the same):Format: MPEG2
Attributes: 1440x1080x12
Frame rate: 29.970 (NTSC)
Field Order: Upper Field first [this may be one of the problems?]
Pixel aspect ratio: 1.333 (HDV 1080)
Alpha channel: None
Rotation: 0 (original)Given the differences are there adjustments I can make to improve the video rendering?
Also, I’m still not sure why the rendered MPEG2 video plays in good quality on my computer in MediaPlayer when I click on it in the “Renders” folder…
Thanks for any suggestions…
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Just found this after much more searching…I’m perhaps a solution, if not terribly efficient…it involves changing all project media files field order to “lower level first”, the standard Marc says for DVDs…he told the other person the reason the video might it looks OK on the PC is that on a PC one sees progressive rather than interlaced video…
https://forums.creativecow.net/readpost/24/871485
We’ll see..in the meantime happy to have more suggestions…
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