What causes corruption of video when exporting?

I have a project in Premier Pro 1.5 that plays fine in the program monitor but a stretch of the video gets corrupted when I export it as an AVI file. I'm not sure how to descibe this corruption so I've attached a screen shot of a typical example. It's like when a tv satelite signal weakens because of rain or whatever and you get square pixellated atifacts on the screen. I am an animator, and the video sequences are made from gif files which I export as MOVs and import into PPro for editing. For this sequence I went back to the gif source and re-exported it, etc. The artifacts changed slightly but were still there after exporting from PPro. I've made a lot of movies in this program and never had this problem before. Does anybody have a clue what could be causing it?
Those red and yellow squares are not supposed to be there!
PS. I can't try this in PPro CS4 because I can't get that program to export video at all, which is the subject of another thread I have open on this forum, waiting an answer.

Sorry ... Didn't know I could search my old questions on here. Thanks anyway.

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What PPI should I use when exporting for a video project?

I shoot RAW photos. I like and use Premier Elements 11 to make video. Frequently I insert photos in the videos and enjoy using the Pan and Zoom technique (frequently credited to Ken Burns).
Resizing photos helps Premier Elements to run smoothly. The LR Export command makes it easy. Using PSD files works well in Premier Elements. However, I am confused about settings.
My understanding is that if no Pan&Zoom or cropping is to be done in the video the export should be 1920x1080. If Pan&Zoom is planned, the setting should be higher by about 50%. LR makes it simple by letting you specify the "Long Edge" so the setting would be 2880. The short edge will match the original.
What about "Pixels Per Inch" for a HD 1920x1080 video project that may be played on a big HD TV or smaller YouTube? There is plenty of information about PPI for printing and computer monitors, but not HD Video.
Here is screen capture for reference:
What should the pixels per inch be set at to match 1920x1080 video? The 140 setting is a complete guess!
Thanks in advance!
Bill

whsprague wrote:
My understanding is that if no Pan&Zoom or cropping is to be done in the video the export should be 1920x1080. If Pan&Zoom is planned, the setting should be higher by about 50%. LR makes it simple by letting you specify the "Long Edge" so the setting would be 2880. The short edge will match the original.
The above sentence from your first post is the correct answer with a few changes as to what settings you need to use in LR's Export module.
Anytime you "resize" an image it will lose sharpness unless you apply Output Sharpening. I have no idea if Premier Elements applies sharpening, how much it applies, or how much using large raw images slows it down. The best suggestion is for YOU to resize the raw images and apply Output Sharpening that meets YOUR taste as to "crispness." That way Premier Elements will use the properly sized TIFF or JPEG images (no PNG Export in LR) with no further modifications.
For 1080p (1920 x 1080) Videos:
Don't use the 'Long Edge' option in LR's Export module since you want both portrait and Landscape images to have the same height. Instead simply enter W: 1920, H: 1080, and Resolution as mentioned doesn't matter. For the Output Sharpening LR's Screen Standard setting should work fine, but review the resized images at 1:1 and adjust to your taste. LR's Develop module Sharpening settings should NOT be used for this purpose. This is for the initial "capture" sharpening only.
As you mentioned when using Zoom & Pan you will want to increase the file size proportional to the actual Zoom setting you are using inside Premier Elements:
150% = 2880 x 1620
200% = 3840 x 2160
300% = 5760 x 3240
For best results I'd limit your Zoom to 150%, especially if you’re having performance issues. You also don't want to make your image larger than its native camera raw resolution, which will reduce the sharpness. For higher Zoom settings simply Export the images full-size without using ‘Image Sizing’ or ‘Output Sharpening.’ Use 'File Settings' JPEG, sRGB, with 80 Quality setting, which will provide good results.

Blurred video when exporting

Clips are:
720x480
4:3 .9091 pixel aspect ratio
24fps
progressive
uncompressed AVIs
Project settings:
720x480
4:3 .9091 pixel aspect ratio
23.976fps
progressive
I'm trying to just export this project out as an AVI, even uncompressed, so that is looks just like it does in the project, but I keep getting a blur any time there is motion. I've exported it out before and it worked fine, but using the same settings, it's suddenly giving me the results in the image I attached to this post.
I've tired exporting as a 720x480, 23.976 progressive uncompressed AVI, Lagarith Lossless AVI, and also the same settings as an h.264 mp4 file and I'm getting the same results every time.
Any help would be greatly appreciated. I'm supposed to have this to the client tomorrow.

JSS1138 wrote:
Hmm.
Perhaps an Interpret Footage action is needed here. Maybe Premiere isn't reading the clips actual frame rate correctly?
Not sure. I checked a bunch of the clips and it shows the framerate to be 24.0000.
I ended up creating a new sequence and set the timebase to 24fps rather than 23.976 (which is what it's been since I began working on this project back in July, so why it's screwing up now I have no idea).
I copied everything from the 23.976 timeline and pasted it into the new 24fps timline. I then exported using Lagarith at 24fps. The exported video looked correct, no blurring. But what I did run into was that every spot in the timeline that had a transition was now screwed up. Instead of doing a smooth crossfade, it instead faded to black and then suddenly cut to the next clip. There are also now tiny gaps between every clip (most of which don't cause a problem, but a few cause 1 frame of black).
I assume this problem has come about because of the difference in framerate between 23.976 and 24. Anyway, I'll have to go back through the entire project and fix all those little problems, but I think the blurriness is gone now. As to what caused the problem to start in the first place, I still have no idea.
It's late. I'm tired.

What Rendering intent is used when exporting with a different color space?

Hi,
I would be ever so grateful if any one can tell me what rendering intent is used by LR4 when exporting using a custom colour space as there is not an option as there is with the print module.
Thanks.
Message title was edited by: Brett N

Jeff Schewe wrote:
Bob_Peters wrote:
The rendering intent in the Export dialog is Perceptual.
Actually, an RGB color space to RGB colorspace is always only Relative Colorimetric...and adding Perceptual would only work with certain V4 ICC color spaces (you can find perceptual V4 color spaces for sRGB and ProPhoto I think but I'm not sure they would work in Lightroom anyway).
When using an RGB print output profile you can select either Perceptual or Relative and have the intents actually applied.
True.
The case of interest to me is when I have to print a lot of files using a third-party profile and maintain the original filename so it appears on the back. That is why I made the request more than a year ago.
The problem with the Print module is that it clobbers the filename but does allow 2 choices for the rendering intent. Having to deal with weird filenames creates a mess when matching, say, 50 prints with custom notecards.

Transparent video when exported

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Digital noise flashes in video when exporting a Quicktime.

FCP 6.06 - When exporting an SD QT for use in IDVD, I end up with flashes of multicolor video noise that is one or two frames long. Happened most recently four times in a thirty minute video. Source video is a variety of SD formats, Mini DV and DV/DVCPro. Anyone else see it or know who to fix it?

They are on the export. When I export again, they are in different places. Usually I can get a clean export after two or three tries if I bring the QT in and replace the glitches with the original timeline. Not an optimal fix I know. I have tried it with two different macs so the problem must be in the external drives or the cables as you suggest. This is an ongoing, years long contract and the media is spread over 5 drives.
I guess my next move would be to figure out if the glitched scenes all come from one specific drive or cable chain. Make sense?
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Brandon

Hi Rafeek,
One solution is to set the column width after manually or programmatically refresh the PivotTable, for example:
Private Sub Worksheet_PivotTableUpdate(ByVal Target As PivotTable)
Dim ws As Worksheet
Set ws = Application.ActiveWorkbook.ActiveSheet
ws.Columns("A").ColumnWidth = 10
End Sub
Another option is to set the column width, then protect the columns from been updated by the user, before refreshing the PivotTable, unprotect the worksheet. For example:
Public Sub LockColumnA()
Dim ws As Worksheet
Set ws = Application.ActiveWorkbook.ActiveSheet
ws.Columns("A").ColumnWidth = 10
ws.Columns("A").Locked = True
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Public Sub UnprotectWorksheet()
Dim ws As Worksheet
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ws.Unprotect ("123")
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What resolution do I choose when exporting a png?

I Have created a vector graphic that will be used as an app screen. My document size is 1080 x 1920 (HDTV 1080). When exporting to png, should the resolution be 300 or 72?

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Can you point me in the right direction to these developer guides? My background is in print, not web, so I have asked this question on the forum in order to receive some practical guidance.
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Ditto white screen problem.
I am using iMovie 08 for a 23 minute photo-music slideshow for more control over placement and my music.
The final scrolling credits are 60 seconds long over a photo that is 59 seconds long. I have a wipe right and a new photo and the credits/music end. Everything plays well in imovie, but on the DVD i burn with iDVD, there is a white screen where the credits should be.
Applecare suggested changing to another photo. I did. No change, another DVD coaster. Applecare suggested changing the jpg photo to tiff. I did, no change, another DVD coaster.
I exported again in Media Browser, different name, but got the same white screen.
The 5 other titles in the project are fine in iDVD. When I play it on my TV, it looks fantastic, except for that last white screen and no credits.
Any suggestions?
2.5 Core 2 Duo MBP, 2 gB RAM, all software updates complete, iMovie 08

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I seem to have problems saving/using it with premiere pro. it's a 10 second video of myself with 3 pics: 2 that I put in front of the video and one as a background. In after effects, in the bottom left corner box, the 2 pics are above the video file and the background picture is below it. Still in after effects, the background pic is there behind me and the 2 other pictures are in front of my video which is where everything should be, great. When i save it, then export it to premiere pro, the 2 pics in front are there but not the background pic, the background is just my full video as if I didn't rotobrush it. Help??
Also, how can i export the project as a file in Avi, mpeg, mp4...?
Thanks in advance

Hello Mylenium, i do apologize about my ambiguous question. I'm starting to learn how to use it and in some way, i didn't even know what i was talking about myself. But thanks to your help, i now got it.
"When you export an After Effects project as an Adobe Premiere Pro project, Adobe Premiere Pro uses the settings from the first composition in the After Effects project for all subsequent sequences. Keyframes, effects, and other properties are converted in the same way as when you paste an After Effects layer into an Adobe Premiere Pro sequence."
so as it says above, it only uses the initial video. What i did was only render using the rotobrush and i didn't "render queue" the whole project afterwards simply because i didn't know i had to do that. I thought rendering it from rotobrushing it and adding the background effects would be enough.
Again, thank you. and i also learned how to save it in different format, since AVI outputs a huge file size.

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Hey
I'm new to FCE, but I work professionally in the television industry doing graphics/compositing/3d.
Outside of work, I mess around with my own movies and hardware.
I'm cutting together a piece shot with my Canon VIXIA HG20 camera. The footage/project is 720p.
My problem is that when I key a graphic over the video, it looks great while working in Final Cut, but when I export a full quality video, the graphics cause the entire screen to shift levels. The saturation drastically changes the instant the graphic begins to fade on. It doesn't shift gradually with the fade. This is only visible after export. The graphic is rendered. The image is a 32-bit Targa. The levels in the graphic are within the NTSC broadcast color range. I prepped it the same as I've done for years professionally.
I don't think this is a compression issue, because the change happens immediately, before the graphic is even barely visible.
I looked around, but couldn't find anyone with similar issues, but hopefully this has already been figured out by someone.
Any answers or suggestions are much appreciated.
Thanks
Colin

Thanks for your reply.
As far as I know, targas can only be RGB. I couldn't find a way in Photoshop to work in YCbCr. I have Photoshop CS, so its pretty old, but even on my work computer, which has CS3, I didn't see anything. Next week I'll be installing CS4, so there might be something in that.
I won't be able to test anything until late tonight, but I'll try several formats to see if they make a difference. I'm wondering if there might also be some kind of option in FCE to convert imported graphics to the correct color space.
When keying graphics over video in your projects, how do you save them(formate,color space, etc)? Ever see this issue?
Thanks for your help
Colin

Premier Pro deletes denoiser effect on part of audio on video when exporting

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Does anyone know why it is doing this and how I can resolve this?

I would like to second this.
I used noise removal. My video is multiple different interviews. There are 5 cuts, to five different audio/video clips, each with noise removal effect on them. but, Only on 2 of the cuts, in the final export, for 3 seconds, the noise removal effect seems to "not work" when the clip starts, then it kicks on gently for the remained of the clip. (similar to what Khalil Jammal said, which is why I'm posting this.
Again, the noise removal fails to "start" only on SOME of the cuts/clips in the final export. It kicks on after about 2 or 3 seconds.
This is odd...it's as if the noise removal effect is having trouble communicating with the final export render. I don't get it. For now, i will have to go back to my "old way" of exporting the audio, cleaning it up in my DAW, then importing it back into Premiere.
This is also annoying as I am paying like, $30 a month for Premiere. This does not seem like something we should have to "work around", but rather, Adobe should fix this issue.

Tearing of video when exporting from FCE?

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Thanks!

Sorry ... Didn't know I could search my old questions on here. Thanks anyway.

What causes corruption of video when exporting?

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