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| crespo80 |
| Posted: Jan 30 2014, 04:35 PM |
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Newbie
Group: Members
Posts: 2
Member No.: 37676
Joined: 30-January 14
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Hi to all, I'm using VirtualDub from many years, but this is the first time I have a problem I cannot find a solution by googling it.
I recently purchased an original EzCap capture device (from excap.tv website), I'm on Windows 8 x64 and using the standard EzCap driver (not the WDM) which I see as "USB 2861 Device" under "Sound, video and game controllers".
I have a JVC S7600 S-VHS VCR with either a composite and a S-Video outputs.
When I connect a S-Video cable from the VCR output to the EzCap input, the image has a fine mesh overlayed, like a screendoor, the picture is still good and the detail is there, the colors are ok but it's obviously unusable. The screendoor is visible even while displaying just the menu image of the VCR.
If I use the SCART output of the VCR and the composite input of the EzCap the image is OK.
To rule out a broken S-Video output of the VCR, I connected a S-Video-to-composite adapter to the S-Video output of the VCR and connected to the composite input of the EzCap, no screendoor, the image is OK.
If I capture with the bundled Arcsoft Showbiz 3.5 I don't have the problem, but it heavily compress in MPEG2 and I want to use HuffyUV or other high bitrate codecs with my captures
Here are two images to explain the problem, I captured the same VHS twice.
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| raffriff42 |
| Posted: Jan 30 2014, 09:06 PM |
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Advanced Member
Group: Members
Posts: 384
Member No.: 35081
Joined: 25-June 12
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Looks like radio-frequency interference - probably a bad cable.
EDIT 1
>If I capture with the bundled Arcsoft Showbiz 3.5 I don't have the problem...
OK I was probably wrong. Might be camera artifacts, filtered out by the software.
Try the ezcap.tv forum and see what they say.
EDIT 2
See this thread for a thorough discussion, including the two ideas I mentioned, plus a lot more (but no definitive answers).
http://forum.videohelp.com/threads/331681-...ideo-artifacts/
EDIT 3
To any visitors from the future: for search purposes, this artifact is called "herringbone."
This post has been edited by raffriff42 on Jan 31 2014, 07:36 PM |
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| crespo80 |
| Posted: Jan 31 2014, 07:21 PM |
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Newbie
Group: Members
Posts: 2
Member No.: 37676
Joined: 30-January 14
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Wow, excellent link you gave me, I see the exact same picture of that user, clearly visible with the blue background of the OSD (he happens to have the same JVC S7600 VCR).
But in my case, you were right the first time, it is a connector issue.
I found the S-Video output connector of my S7600 is a bit loose and the image can turn into B/W or show artifacts when I move it around. Probably it was it a correct position when I captured with Arcsoft.
Now it shows the same screendoor only on the OSD screen, but the captures are perfect  |
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| IanB |
| Posted: Jan 31 2014, 09:14 PM |
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Avisynth Team Member
Group: Members
Posts: 121
Member No.: 22295
Joined: 23-October 07
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Had a similar problem with my S5990, S-Video Y input and right audio output pins.
If you are handy with a soldering iron (or have a friend who is) it is a fairly easy job to resolder the connector pins to the daughter board.
If you are so inclined, do all the connectors, the wave soldering machine tended to be a bit light on with large structures like connectors. |
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