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Home: Video University Forums: Teaching Video Production:
Video Quality not good in firewire

X-Kamaruzzaman
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Aug 10, 2003, 12:22 PM

Post #1 of 5 (1005 views)
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Video Quality not good in firewire	Can't Post

I have a Sony TRV-140 and I am importing the video to my P.C through Fire wire card, Eventhough it is a Digital camera the Quality of imported video is not as good as what iam viewing on a T.V through A/V cable, My PC is 700 Mhz with 256MB RAM,
If I get a analog capture card like -ATI all in wonder-, will it improve the quality..? or what should i do to improve the quality while importing through firewire card ? Please suggest ?

X-Doug_Graham
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Aug 11, 2003, 9:15 AM

Post #2 of 5 (1004 views)
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Re: Video Quality not good in firewire	Can't Post

: If I get a analog capture card like -ATI all in wonder-, will it improve the quality..?
No, it won't make an improvement. Video capture through Firewire is a straight bit-for-bit transfer of the original video data; there is no degradation.
What you may be seeing is one of two things:
1) Dropped frames. If the captured video "skips", your computer may have skipped capturing some of the video frames during capture, because the hard disk couldn't keep up with the data input rate. You should be capturing to a separate physical hard drive (not your C:\ drive), DMA should be enabled, and the drive should be a UDMA 100 or better, 7200 rpm or better type.
2) The captured video may be fine, but your computer may be unable to play it back at full quality and frame rate. This isn't a serious problem, just an annoyance. When you're done editing, dump the finished program back out to your camcorder via Firewire, and it should look fine on your TV.
Finally: What type of Firewire card do you have, what software are you using to capture, and what are its capture settings?
Regards,
Doug Graham

X-Kamaruzzaman
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Aug 14, 2003, 10:00 AM

Post #3 of 5 (1004 views)
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Re: Video Quality not good in firewire [In reply to]	Can't Post

: : If I get a analog capture card like -ATI all in wonder-, will it improve the quality..?
: No, it won't make an improvement. Video capture through Firewire is a straight bit-for-bit transfer of the original video data; there is no degradation.
: What you may be seeing is one of two things:
: 1) Dropped frames. If the captured video "skips", your computer may have skipped capturing some of the video frames during capture, because the hard disk couldn't keep up with the data input rate. You should be capturing to a separate physical hard drive (not your C:\ drive), DMA should be enabled, and the drive should be a UDMA 100 or better, 7200 rpm or better type.
: 2) The captured video may be fine, but your computer may be unable to play it back at full quality and frame rate. This isn't a serious problem, just an annoyance. When you're done editing, dump the finished program back out to your camcorder via Firewire, and it should look fine on your TV.
: Finally: What type of Firewire card do you have, what software are you using to capture, and what are its capture settings?
: Regards,
: Doug Graham
First of all thank you for your valuable advice ,
Surerly I will try the way exactly what you told me,
and let you know the result,
The firewire card I am using is a standard one which I purchased from the local market,It doesn't have any details given on it ,and the software in Windows movie maker on Windows-XP Professional,
Can you Please sujest any better environment and a branded Firwire card
Thank in advance

X-Ron
Imported Account

Sep 18, 2003, 5:01 PM

Post #4 of 5 (1004 views)
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Re: Video Quality not good in firewire [In reply to]	Can't Post

First you're going to need an editing program instead of MovieMaker. I suggest Ulead V7 (free for 30 days). I also suggest you learn a little more about bitrates and frame sizes verses quality. (At least enought to find out why I suggest something besides MovieMaker.)
Playing DV files is kinda tough but is completely possible on computer if your system is up to it (MPEG2 also), so you probably need to do some performance tests on your system and find out what is going on with it.
You can transfer/edit/encode/etc DV files on a very slow computer and get quality results (just as good as) with proper software and setup. It's just going to take longer to do so, that's all.
gl...

X-nn
Imported Account

Oct 23, 2003, 12:28 PM

Post #5 of 5 (1004 views)
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Re: Video Quality not good in firewire [In reply to]	Can't Post

I remembered the Movie Maker program was set to have half(at least less) resolution of the input as default by M$.
There was an script file to correct it before but i could not locate it online now. u should also be able to correct it in regedit urself. but i forget the exact parameters now. Anyone here know the script file or the parameters?
If you want a simple sulotion, this might help. Or, just go w/ Ulead V or Adobe Premiere.
nn
: I have a Sony TRV-140 and I am importing the video to my P.C through Fire wire card, Eventhough it is a Digital camera the Quality of imported video is not as good as what iam viewing on a T.V through A/V cable, My PC is 700 Mhz with 256MB RAM,
: If I get a analog capture card like -ATI all in wonder-, will it improve the quality..? or what should i do to improve the quality while importing through firewire card ? Please suggest ?