Looks like wierd interlace artifacts at DVinfo.net

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Panasonic DVX / DVC Assistant
The 4K DVX200 plus previous Panasonic Pro Line cams: DVX100A, DVC60, DVC30.


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Old May 6th, 2003, 11:22 PM   #1
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Looks like wierd interlace artifacts

I don't know what I am doing but I am getting what looks like interlace artifacts capturing 24p in Vegas 4 at 24p using the template in Project Properties
NTSC DV 24p (720x480, 23.976 fps)
720 X 480
none (progressive scan )
23.976 (IVTC Film)
0.9091 (NTSC DV)
Deinterlace method = NONE


Is there some thing I am missing or should do?


Kevin
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Old May 8th, 2003, 11:03 AM   #2
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are u using a PC monitor or external when viewing?
It could be your monitors interlacing...
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Old May 9th, 2003, 02:34 PM   #3
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0) Do you have the 4.0b update?
1) Was the clip captured with the Sonic Foundry Video Capture program or something else? With scene detection on?
2) Does the clip show as 23.976 in the Media Pool (or Media Properties)?
3) Was the clip shot in 24p or 24p Advanced mode?
4) Does the interlaced frame show up every forth frame, or when?
Through the whole clip, or only part of it?

///d@
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Old May 9th, 2003, 11:30 PM   #4
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if ur not using 4b of vegas, it could be that.
I have notices alot of "flickering" and combing on the pc screen, but when monitoring on a television, it looks fine...


Hey dennis, i was just wondering, you know how in Vegas Capture u can set the default frame capture rate? Could this be an aspect of this type of distortion?
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Old May 10th, 2003, 12:24 AM   #5
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Are you talking about the "custom frame rate" setting? That's just used for analog captures. The DVX100 (being a DV device) doesn't use that.

I need someone to send me a short clip and a project that exhibit this problem, because I can't get it to happen.

///d@
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Old May 10th, 2003, 12:29 AM   #6
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thanx for the response dennis,
much appreciated
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Old May 12th, 2003, 11:28 PM   #7
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Interlace like artifacts

Hi Dennis.

To answor your questions.



0) Do you have the 4.0b update?

Yes have Vegas 4.0b

1) Was the clip captured with the Sonic Foundry Video Capture program or something else? With scene detection on?

Captured in 24p via Vegas 4.0b

2) Does the clip show as 23.976 in the Media Pool (or Media Properties)?

Yes the clip shows 24p in both windows media an viewer 23.976.

3) Was the clip shot in 24p or 24p Advanced mode?

Clip was shot in 24p. Use the preset but dropped to 1/24 shutter from 1/60.

4) Does the interlaced frame show up every forth frame, or when?
Through the whole clip, or only part of it?

NO I has artifacts at sporatic parts not like a set every 4 frames.


Where can I upload a source to you?


Kevin
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Old May 12th, 2003, 11:29 PM   #8
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No scene detection was enabled!

No scene detection was enabled!
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Old May 13th, 2003, 07:37 AM   #9
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Re: No scene detection was enabled!

<<<-- Originally posted by Kevin Merker : No scene detection was enabled! -->>>

That's probably the problem. If there was a cadence break, the 24p inverse telecine would get off and produce bogus interlaced frames.

If this isn't the problem, drop me an email at dithermaster at hotmail * com and I'll shoot you an ftp address to upload a small clip.

///d@
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Old May 15th, 2003, 11:44 PM   #10
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Re: No scene detection was enabled!

Dennis

After rereading your suggestions I realized that I was only looking at the interlaced artifacts on the computer monitor on rendered clips. The clips would play fine encoded mpeg2 using PowerDVD and would look interlaced using MS Media Player.

Most of all after reading what you wrote I realized that playing them back via firewire through my AG-DV2000 deck to my color Trinitron ntsc monitor all looked absolutly great. Man-o-man lots of days trying to fix something that wasn't broken. It had me pulling my hair out.

Again thanks ever so much!

Kevin
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