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Settings for exporting DV footage ?
Hi all and thanks for existing, I’ve learned a lot from here. I am still a newbie however and as such I would appreciate some input if possible on some export settings for my project. I’m essentially converting VHS, Hi8 and miniDV tapes to digital. My workflow is something like this:
Source (VCR or camera) -> AVT8710 TBC -> ADVC-110 -> computer (-> Premiere) -> file
For most part I am leaving the files as they are as coming from the ADVC, i.e. DV PAL 720 x 576, as space isn’t an issue and I’m not making DVDs yet. Some of the footage however I want to edit to make compilations or short films etc For those I am currently just adjusting Contrast, Levels and Color, as well as cropping the video to remove the leftover conversion band at the bottom (not sure what it’s called).
My project settings are:For editing with IEEE1394 (FireWire/i.LINK) DV equipment.
Standard PAL video (4:3 interlaced).
48kHz (16 bit) audio.General
Editing mode: DV PAL
Timebase: 25.00fpsVideo Settings
Frame size: 720h 576v (1.0940)
Frame rate: 25.00 frames/second
Pixel Aspect Ratio: D1/DV PAL (1.0940)
Fields: Lower Field FirstAudio Settings
Sample rate: 48000 samples/secondThe problem appears when exporting in, for example, H.264 (yes, not ideal), using default DV PAL High Quality settings. As it’s interlaced and kept as interlaced (I guess), I am seeing those window-blind-like bands around the edges of objects (on the computer screen). First question would be: am I correct in assuming that those are interlacing “artefacts” and if so, will they also appear when exporting the video signal on a LCD or Plasma screen?
I’m also assuming that by setting the Field Order from Lower to None (Progressive) I would be de-interlacing the video (or converting to progressive) therby removing the “artefacts”, but losing resolution.If my assumptions are correct, I would like to ask you guys to suggest some export settings in order to keep the best quality possible, while also not having interlacing “artefacts” on computer screens? If at all possible.
PS: Given that the original footage is interlaced, am I wrong cropping it? I’m maintaining aspect ratio at 4:3, but by zooming in (using the movable box in the video preview screen) I guess I’m changing the pixel size?
Thanks for any answers you may have and sorry for the text wall.
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7 Replies
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De-interlacing the footage will not loose resolution, it simply combines the two fields.
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Right, thanks for that. So is there any reason why I shouldn’t export an interlaced video as progressive?
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Not unless your target is an interlaced TV (i.e. standard def tv through DVD? Perhaps selling bootleg Korean soap operas in India?)
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If your footage is interlaced you edit on a interlaced timeline.
In the export settings set field to non if you want it deinterlaced.
Deinterlacing on the timeline is for stills and slomo’s, freeze frames.———————————————–
Adobe Certified Expert Premiere Pro
Adobe Community Professional -
In general if you are working with interlaced video content that will be screened for computers/web then you will need to deinterlace. Technically deinterlacing does remove one of the fields and or replicates it so there is no “gap”. It is essentially removing half of the detail and will be less sharp. Progressive can be either deinterlaced or blended whereby the fields blend together to make a single overlay frame”blend” of the two fields together, which again makes it even less sharp as the overlay creates extra “blur” type information in the frame from motion.
If the video is to be played back on either a computer with a player that can deal with the interlacing like VLC then you can set it to “blend” or “deinterlace” or another flavour. I suggest you test under conditions and export several versions to see what you feel is giving you the best playback results.
Upon exporting from the interlaced timeline you have several options: 1. set the “Field Order to None” which will make it progressive or 2. “Use Frame Blending” which will overlay each frame/field.
Good Luck, I am thankful I don’t need to deal with interlacing anymore, it’s always been a bit of a headache…
– JB
Jon Barrie
Adobe Video Solutions Consultant ANZ
Jon’s YouTube Tutorial Page
follow Jon with twitter -
Hi JB and thanks for the reply. I think it’s one of your posts from ages ago that I read and got the idea that there is quality loss when interlacing, but maybe “resolution” isn’t the right word. Doing some reading today, wikipedia sort of confirmed that there is no perfect deinterlacing algorithm.
That being said, I assume any 480p-and-above-piece-of-hardware can do the deinterlacing if need be, i.e. DVD-players, A/V recievers, TVs with tuners etc and equal if not better to what Premiere can do. If so, the only reason for deinterlacing would be web stuff. Am I correct?@Ryan, I kinda like Korean historical soaps, so you were almost dead on, but not really 🙂
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Deinterlacing for web is pretty much the way to go. 🙂
TV or “Some” players on PC/Mac will work with interlaced properly.
– JB
Jon Barrie
Adobe Video Solutions Consultant ANZ
Jon’s YouTube Tutorial Page
follow Jon with twitter
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