1-pixel horizontal lines don’t appear anymore

[Vincent Rosati]

Premiere does not deinterlace by default, as After Effects does.
To dinterlace a clip, you might right-click on a clip in the timeline and select Field Options/Always Deinterlace.
So for you, check that setting and make sure Field Options/None is selected.

Check your project settings Project/Project Settings/General…
Check the Video/Fields options to make sure you are using fields.

Also, make sure you have your Preview Monitor set to 100% or greater, otherwise you would not see the “Interlacing Lines”.

Also, the Editing Monitor displays as deinterlaced, but that does not affect output.

Finally, when exporting or encoding make sure to enable the fields option (upper or lower) and do not select deinterlace.

Regarding changing your project settings from DV, you would need to start a new project, than import the old project into the new one.
Go into the Custom Settings tab as you create the new project and change the Editing Mode from DV to whichever setting is appropriate for your OS. (If you get a chance, fill out your System Details in your profile so we can see your OS and App versions and stuff.)
Make sure the Video/Fields setting is correct, if you’re PAL the footage is probably Upper Field First.
Under Video Rendering, set the Compressor to None and Color Depth to Millions.

Vince

[Allan Qi]

Thanks for the reply… didn’t solve it at first but I found that upping the resolution to 640×480 instead of 320×240 allows the horizontal lines to appear… but at that resolution it doesn’t allow my video to play at 50FPS (which I want it to). Is there any way to bypass this restriction?

Oh and when I export and use any field oder other than “progressive” the video just plays a green screen with audio on the computer.

I use XP SP2.

[Vincent Rosati]

Aah. I assumed you were editing in full screen. As you discovered, reducing your interlaced video to quarter-screen effectively deinterlaces the video (although poorly).
If the video is interlaced PAL, the project should be 25 Frames per Second Interlaced (a.k.a. 50i, or 50 Fields Per Second).

As far as forcing Premiere to allow 50 Frames Per Second, start a new project and go into the Custom Settings.
Switch the Editing Mode to Video for Windows and 50FPS will be available.

Usually a green screen with audio indicates a video codec issue.
What video codec are you using for export, what player are you trying to use?

Vince

[Allan Qi]

I’m using H.264, exporting as MP4, playing back the video with QuickTime.

I find leaving the export as “progressive” works fine though, so it really isn’t much of a problem.

But… the video I’m making is aimed for Youtube. When I play it in Quicktime, it looks perfect and smooth… when uploaded to youtube, it’s blockier than most videos and stutters a lot (I’m assuming it’s because of the 50 FPS on the source video). I’ll need to experiment more on this issue though.

[Vincent Rosati]

YouTube video size must be 320×240, square pixel, progressive.
I’ve had the best results encoding as WMV (WM9), 1024kbps, Square pixels (PAR 1.0), 2-Pass.

As far as frame rates, I’ve only experimented with 29.97. I’d, at least, consider dropping your frame rate to 25P.
Try using Effect/Time/Posterize Time.
And, if you’re resizing in Premiere use Video Effect/Distort/Transform instead of Effect Controls/Motion/Scale, it takes a little longer to encode but the quality is better.
Also, if your source is full screen interlaced, right-click on the clip in the timeline and choose Field Options/Always Deinterlace.

Let us know your formula, once you’ve achieved acceptable results. 🙂

Vince