Hi there, Im a newbie on this board, and have gone through all the links on the 'new users read this first' page without finding a solution to my problem.
When I author a disc there is a distortion in the final video where moving images (ie the legs of running children etc) appear 'stripey', ie they are breaking up on a horizontal plane. This is def not a TV problem as I have tried it on several different machines.
I will include as much info as I can in case anyone can help:
I am using the trial version of Mediastudio Pro 7
I am filming on a sony handycam onto 8cm dvds.
I am capturing as MPEGs using Video Capture 7
I am creating an MPEG output file before burning.
I am in Britain so I am choosing the 'Pal DVD' settings.
I have read that it is advisable to change the frame rate to 29.97 but all the people that recommend this are also suggesting the use of NTSC which I think is for the US. Should I change this or keep it as 25 fps? I have also tried outputing to a .avi file before burning but it gives the same result.
Hope someone can help me!
Cheers
Stripey Legs!! Can anyone help??!!
Moderator: Ken Berry
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THoff
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joemac
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rwindeyer
I'm not sure where the settings would be in Media Studio Pro - I only have Video Studio. Lets hope they are somewhat similar.
As background - TV pictures are interlaced. The electron gun at the back scans one set of lines first (say the odd-numbered ones), then scans the other set. So each "frame" is made up of two complete scans. If you capture and display video pictures in a consistent order it makes sense - and also works.
Computers, on the other hand, do not use interlacing. They use "progressive scan" - ie, continuous from the top down.
If you look in Project Properties, change mpeg settings, customise, you should find alternatives. Frame Based is ONLY if you want to display the output on a computer. Lower Field First (or Field Order A, in VS7) is the convention if you are capturing digital video via firewire. If you are capturing analogue video, the convention is Upper Field First (or Field Order B).
As Torsten said, you should have your project settings THROUGHOUT on Lower Field First.
As background - TV pictures are interlaced. The electron gun at the back scans one set of lines first (say the odd-numbered ones), then scans the other set. So each "frame" is made up of two complete scans. If you capture and display video pictures in a consistent order it makes sense - and also works.
Computers, on the other hand, do not use interlacing. They use "progressive scan" - ie, continuous from the top down.
If you look in Project Properties, change mpeg settings, customise, you should find alternatives. Frame Based is ONLY if you want to display the output on a computer. Lower Field First (or Field Order A, in VS7) is the convention if you are capturing digital video via firewire. If you are capturing analogue video, the convention is Upper Field First (or Field Order B).
As Torsten said, you should have your project settings THROUGHOUT on Lower Field First.
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mikewillnot
Possibly a similar problem. with VS8, not in wizard mode.
rwindeyer,
I'm a tad confused. I'm used to capturing AVI from a dv camcorder, using vs7 and the Jones tutorial, converting to DVD, and then burning with a separate tool. VS8 seems to be basically the same, but I have a couple of questions I can't find answered anywhere.
My current test project is capturing an anaolog VHS source via a WINTV card. So far, I've captured both to AVI and then another test direct to mpeg, with an on-the-fly conversion. With both, I'm getting a poor quality (unclear, rather fuzzy overall) dvd output. I'm wondering why this might be. I suspect I have one or more settings wrong.
1. Do I understand that in this scenario I'd capture in Upper Field First, and share (burn/save-to-dvd) in Lower Field First?
2. I've been capturing in 720x480, and converting to 352x240. Could this be the problem?
3. Audio problem: THE SOUND ON THE FINAL DVD IS VERY LOUD compared to the source & the project -- and a bit distorted. I wonder why this might be? It's being routed from the cap card to the integraded audio line in jack. Why would the volume be altered?
THANKS for any suggestions, including any tutorials that address this scenario. The ones I've found don't seem to -- although it seems like a pretty common task.
rwindeyer,
I'm a tad confused. I'm used to capturing AVI from a dv camcorder, using vs7 and the Jones tutorial, converting to DVD, and then burning with a separate tool. VS8 seems to be basically the same, but I have a couple of questions I can't find answered anywhere.
My current test project is capturing an anaolog VHS source via a WINTV card. So far, I've captured both to AVI and then another test direct to mpeg, with an on-the-fly conversion. With both, I'm getting a poor quality (unclear, rather fuzzy overall) dvd output. I'm wondering why this might be. I suspect I have one or more settings wrong.
1. Do I understand that in this scenario I'd capture in Upper Field First, and share (burn/save-to-dvd) in Lower Field First?
2. I've been capturing in 720x480, and converting to 352x240. Could this be the problem?
3. Audio problem: THE SOUND ON THE FINAL DVD IS VERY LOUD compared to the source & the project -- and a bit distorted. I wonder why this might be? It's being routed from the cap card to the integraded audio line in jack. Why would the volume be altered?
THANKS for any suggestions, including any tutorials that address this scenario. The ones I've found don't seem to -- although it seems like a pretty common task.
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Trevor Andrew
Hi Mike
The best method of capture is from a digital camera via Firewire to Dv-Avi.
This capture is the least demanding on your PC as no changes to your footage (re-coding) takes place.
The video is virtually copied from your camera to the pc.
If you are intending to make a Dvd then your capture frame size should not be changed.
720 x 480 is the size you should use for Ntsc.
Have a read at my quick guide from the link below.
If you movie is over one hour you will have to change the bit rate to match ( Kbps)
The best method of capture is from a digital camera via Firewire to Dv-Avi.
This capture is the least demanding on your PC as no changes to your footage (re-coding) takes place.
The video is virtually copied from your camera to the pc.
If you are intending to make a Dvd then your capture frame size should not be changed.
720 x 480 is the size you should use for Ntsc.
Have a read at my quick guide from the link below.
If you movie is over one hour you will have to change the bit rate to match ( Kbps)
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mikewillnot
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rwindeyer
Hi Mike - just found that the board started working again (for me) - the lag was terrible over the last few days.
To the best of my knowledge - if you capture Upper Field First (analogue) you should maintain that order throughout the entire editing and burning process. It makes sense if you pass on the data in the same order as you receive it.
I have no experience with analogue capture - I use the camcorder passthrough/firewire method - so can't help much on the audio problem. Is there a way to reduce the volume setting anywhere?
To the best of my knowledge - if you capture Upper Field First (analogue) you should maintain that order throughout the entire editing and burning process. It makes sense if you pass on the data in the same order as you receive it.
I have no experience with analogue capture - I use the camcorder passthrough/firewire method - so can't help much on the audio problem. Is there a way to reduce the volume setting anywhere?
Mike,
You're reducing the video from 720X480 to 352X240. You are going to have poorer quality. 240 vertical resolution is also going to change the project to more of a progressive scan (frame based) picture rather than interlaced. You could try 352X480 (1/2D1) if you are concerned about file sizes or leave it at 720X480 for better quality.
You need to maintain Upper Field First throughout the whole process including DVD. Changing in midstream to lower field will give you a jittery picture and also cause it to be fuzzy looking.
So, in short, you started in upper field, reduced the file to frame based, then converted to lower field, so that's probably why it looks bad.
Regarding the WinTV card. Which one do you have? There may be audio adjustments that you can make. For WinTV and all things Hauppauge, check out this forum:
http://www.shspvr.com/forum/
You may find the audio tweaks you are looking for there.
You're reducing the video from 720X480 to 352X240. You are going to have poorer quality. 240 vertical resolution is also going to change the project to more of a progressive scan (frame based) picture rather than interlaced. You could try 352X480 (1/2D1) if you are concerned about file sizes or leave it at 720X480 for better quality.
You need to maintain Upper Field First throughout the whole process including DVD. Changing in midstream to lower field will give you a jittery picture and also cause it to be fuzzy looking.
So, in short, you started in upper field, reduced the file to frame based, then converted to lower field, so that's probably why it looks bad.
Regarding the WinTV card. Which one do you have? There may be audio adjustments that you can make. For WinTV and all things Hauppauge, check out this forum:
http://www.shspvr.com/forum/
You may find the audio tweaks you are looking for there.
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Trevor Andrew
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mikewillnot
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AndyH
Hi all,
There is a thread I read (somewhere!) that says that some Ulead software captures/outputs in the opposite field order to what you select. I have experienced this with both UVS8 and UMF3 myself. Therefore, this can only add to the confusion I would say. No patch fixes this problem as far as I know.
Andy
There is a thread I read (somewhere!) that says that some Ulead software captures/outputs in the opposite field order to what you select. I have experienced this with both UVS8 and UMF3 myself. Therefore, this can only add to the confusion I would say. No patch fixes this problem as far as I know.
Andy