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Video Noise/ripple only on projector
I am new to editing but very much enjoy learning about the capabilities of vegas Pro 8.1 which I’ve been using to edit and render AVC HD Video shot on a Sony HDR-SR1. The original file were shot at 1080i.
I have edited a series of files & rendered into one MPEG2-TS File (.m2ts)movie. While viewing on my computer screen I never noticed any video problems. However, the first time I used my projector to view the movie, I noticed some sort of video distortion only during parts where there is camera motion…when the camera actualy is moving & not necessarily when there is motion in the frame. I mirrored playback on my Notebook which I was using to stream this file from my server on my Home Network to my Projector. I did not notice the same anomily on the monitor…just via the projector.
Could the problem have something to do with incorect setings somewhere? Progressive or deinterlacing setings?
I’m lost at this point and I have lots of video I want to put together but noit till i have this figured out!
Any ideas & suggestion will be greatly appreciated.
Thanks!
JR
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8 Replies
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Size really does matter.
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Well, I guess. Really sucks, though. I’ve gone thru alot and spent quite a bit of money to be able to produce the best possible viewing experience in the hopes of avoiding issues like this!! The weakest link in my system, I’m afraid, is me! While I get around fairly well once I learn how to opperate it I do not have a good working knowledge of the software or this discipline.
ANY suggestions on how to prevent this? Theres got to be something I can do…anyone??!!
Thx in advance.
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It could be interlacing. Because of the high resolution of HDV (1080i) interlacing artifacts are very small but when you blow them on a big screen they begin to get noticed.
What are you using to drive the projector, a PC or Blu-ray disc? It could be the device isn’t handling the interlacing properly or it could be a problem with the render.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks for responding, John.
I’m using my Vaio AW190 to stream the file from my server which is on my home network. I just purchased the Vaio about 4-5 weeks ago and had it fairly beefed up.
From the start I kinda felt it might have to do with the rendering though I would have expected to experience this issue even when the camera is still. The one issue that came to mind was the one setting where it asks whether to blend fields, etc. I wasn’t sure of the correct setting and wonder if this might be the cause of my problem. This is my first project and considering that I actually have done quite well. However, I am strictly a hobbiest with a big passion for this stuff. With that said, I have just aenough knowledge to understand I don’t know much!
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> I’m using my Vaio AW190 to stream the file from my server which is on my home network. I just purchased the Vaio about 4-5 weeks ago and had it fairly beefed up.
This may be your problem. PC’s don’t know anything about interlacing. They are progressive devices. If you burned the file to Blu-ray or even DVD you would not have this problem because DVD players understand interlacing and will compensate for it. It would be the responsibility of the software that you are using to send the video to your projector to compensate for the interlacing. If it is not capable of this, then you should render your videos as progressive or use software that will deinterlace.
It is important to render in the same format as your target device. If your target is progressive such as a PC or the Web, then you should render progressive. If your target is an interlaced device such as a TV then you should render interlaced.
I assume that both the projector and PC are progressive mode devices which is why they are showing you the interlacing artifacts. You may be able to correct this by playing the file back with software that will deinterlace. Most DVD playback software these days will also play back files and have an option to deinterlace.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
This certainly sounds reasonable. I am using Windows Media player to play the files and yes, my projector is 1080p. I still have my veg files so that I could render this again. If I do and to be certain, what setting is it I should select? I don’t have my note book in front of me…all i rember is there were 4-5 choices, one of them being blend, interpolate was another, I believe….
JR
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Hey, also, the “Motion Blur Type” setting…I believe mine was set to “Gaussian”…could this have any effect to my issue? It seems as though it only hapens with motion in portions…
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> Hey, also, the “Motion Blur Type” setting…I believe mine was set to “Gaussian”…could this have any effect to my issue?
No. That setting determines how Motion Blur will be applied when it is needed but it does not add it.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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