HELP NEEDED! Crosshatch "Diagonal Line" Interference!!

[mike981]

This is really weird. Passing through the DMR-ES15, these weird diagonal lines show up. Note that this doesn't happen with the raw video signal straight from the VCR, only from the DVD recorder. I need help please!


[Attachment 81282 - Click to enlarge]

[pandy]

Search for filters working in frequency domain - fftquiver, defreq etc

[jagabo]

Fix you capture process first. Use s-video cables throughout. Make sure your capture device is set up for s-video capture. Capture 720x480 at 29.97 fps. Make sure everything is properly grounded on the same circuit. If you have a cable TV cable connect to any of the devices disconnect it.

[mike981]

Use s-video cables throughout.

Already have that

Make sure your capture device is set up for s-video capture.

It is, yes (ION VIDEO MKII)

Capture 720x480 at 29.97 fps.

Already set

[Attachment 81317 - Click to enlarge]

Make sure everything is properly grounded on the same circuit.

I don't know what you mean by that - Can you explain more?

If you have a cable TV cable connect to any of the devices disconnect it.

If you mean like a coaxial cable, I do not.

This is a really odd problem. Its been happening to me for awhile, but I just haven't noticed it

Could it be my capture device?
When I passthrough from the DMR-ES15 (or any DVD recorder), this happens. Standalone VCR this doesn't happen.

[jagabo]

If you can't get rid of it before capture AviSynth can get rid of most of it without too much damage:

before:

[Attachment 81376 - Click to enlarge]

after:

[Attachment 81377 - Click to enlarge]

That was a result of blurring with an edge mask to protect sharp edges.

[Sharc]

Could it be my capture device?
When I passthrough from the DMR-ES15 (or any DVD recorder), this happens. Standalone VCR this doesn't happen.

Low quality (poorly screened/too long) S-video cable between the ES-15 and the capture device?
Maybe faulty electrolytic capacitors in the ES-15?

[mike981]

Sorry about the late reply, I was away for a bit.

I use 2 of these cables

The ES15 seems to be in working order.

[The_Doman]

Could it be my capture device?
When I passthrough from the DMR-ES15 (or any DVD recorder), this happens. Standalone VCR this doesn't happen.

If different DVD recorders showing the same issue on your capture device you would think so.
Just test different configurations to find what exactly introduces the problem.
Try digitizing only the DVD recorder source (a setup menu/non VHS recording) and see if the problem shows too?
Try the composite connection to see if the same pattern is still visible?
And your (S-VHS?) VCR is what model?

[mike981]

I ordered a different capture device to replace it. The ATI TV Wonder 750. I will see if the issue persists.
I did that yes, I tried different options, video levels and more (On the DVD recorders I tried)
Setup menu also has the issue (Very noisy - Lines do not appear on screenshot, only video.):

[Attachment 81428 - Click to enlarge]
Composite already tested, same issue.
My main VCR is nothing special (At all in the capturing world atleast). A JVC HR-S8007UM. I tried a standard Panasonic VCR/DVD recorder with the same issue.



Here is the secondary Panasonic VCR playing - Its compressed because I edited it, and uploaded it somewhere else. I do not have the original file, but most lines are still visible. (See 0731.mp4)

[Sharc]

Sorry about the late reply, I was away for a bit.

I use 2 of these cables

The ES15 seems to be in working order.

Your cable is pretty long (10 meters). Unless perfectly screened it will pick up noise and/or produce luma-chroma crosstalk between the wires. If you have a high quality shorter cable (1 meter / 3...4 feet) try if it makes a difference.

[mike981]

I have tried that also.

In the Panasonic clip I had a short svideo cable before buying the JVC Branded ones.

[mike981]

I just plugged in the VCR into my CRT TV. The problem is still there??

This is most definitely not my card or cables.

What do I do??

Edit: I also just tried the CRT with the built in VCR feature. It still happens.

[Alwyn]

I also just tried the CRT with the built in VCR feature. It still happens.

That discounts everything except the tape itself. Jagabo's solution in post #5 looks like the solution.

[mike981]

That discounts everything except the tape itself

I've tried over 10 tapes. Same exact issue.

[Alwyn]

I've tried over 10 tapes. Same exact issue.

Were they all recorded on the same VCR originally?

[mike981]

Were they all recorded on the same VCR originally?

No, they are all blank tapes I have collected through thrift stores and eBay from a span of years.

[Alwyn]

they are all blank tapes

By "blank", I assume you mean "prerecorded". In that case, I can't see any common factor. The lines show from your VCR and from the TV's VCR. It must be the tapes. Jagabo's solution is it.

[mike981]

I will try and move locations throughout my house and see if that fixes the interference.

But what's weird to me is regular movie tapes do that too.

If all doesn't work with the ATI TV Wonder 750 and the location change, I will try jagabo's solution.

Thanks for the help. I will reply if anything else happens.

[Sharc]

Ground loops? Power all devices (VCR, Recorder, PC) from the "same" wall outlet rather than powering them from here and there.

[mike981]

Hmm,

Does a surge protector count?

Or... was that my problem the entire time? Not plugging it directly into the wall..?

[lordsmurf]

UPS, never direct wall.

[mike981]

Can you recommend any brands?

[Sharc]

Hmm,

Does a surge protector count?

If fired, leaking or damaged surge protectors can produce a lot of noise and harmonics.

Or... was that my problem the entire time? Not plugging it directly into the wall..?

What I suggest is to supply all devices from the same power outlet rather than the VCR from wall socket1, PC from wall socket2 some distance away or even located in another room, etc.
Your 10 meters long S-Video cables made me suspect that your equipments may be pretty scattered.

[pandy]

Use decent power bar that's all, good quality cable, normal length (10 m can be to high capacitance load for source) - this should be enough to avoid most of problems.

[mike981]

Your 10 meters long S-Video cables made me suspect that your equipments may be pretty scattered.

Yeah, you are sort-of right about that.

Use decent power bar that's all, good quality cable, normal length (10 m can be to high capacitance load for source) - this should be enough to avoid most of problems.

I will definitely attempt all these recommendations, I had this problem and asked about it on the DigitalFaq forum, but I didn't get far.

[mike981]

Just arrived ATI TV Wonder 750.. Works great with no interference. Thank you for all the help.

Best,
Mike

(it sometimes still has the issue. It has to be my direct wall plug or something.)