12-07-2015, 11:38 AM
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AVT-8710 Test 12.2015
Checks to what the AVT-8710 shows then you're really disappointed.
Signal Y / C [S-Video] from ADVC110
Manual I have read and understood ....
Settings completely reset.
No wonder I have gray instead of black in the picture.
Anyone who has observed the same mistake ??
Note ...... RVB is French and has been translated = RGB
[verte = green]
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Someday, 12:01 PM
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12-07-2015, 10:45 PM
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I don't think I've ever analyzed its own colorbars output, but I did find that video passed through my AVT-8710 was brightened.
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12-08-2015, 07:49 AM
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The AVT does juice up gamma. Users have known that for a long time. Every tbc except studio-grade units have problems (for instance, the TBC-1000 softens visibly). Capture should be set up using a histogram, with adjustments made accordingly. The idea that VHS capture is a one-step, one-button, uncontrolled process ensures that problems will occur that can be avoided. Anyway, it's almost always the case that VHS to DV has an elevated IRE and usually blown-out highlights. It's one of several reasons why Canopus is generally not recommended for the work.
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12-08-2015, 08:08 AM
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How were the analog video output bars captured?
What are the bars supposed to be? (The on-line manual doesn't say.)
Does it put out the same bars for NTSC and PAL?
The two dark bars on the right look like they could be close to NTSC (7.5 IRE) and PAL (0 IRE) black.
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12-08-2015, 08:35 AM
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I'm not sure what the AVT's color bars are supposed to depict. I've found no documentation over the years, so I ignore it. It doesn't seem related to actual input signal. Obviously if everything looks green or is fuzzy, or there is RF noise, etc., it would mean something is amiss. I use the input signal as my AVT "test", and the input always shows that the AVT does indeed heighten gamma. That's correctable during capture, but since analog input almost always needs reworking in post processing, it's easy enough to fix later as well. I don't always use the AVT unless I have frame sync problems or Macrovision that my pass-thru ES10 didn't manage properly. I've also used it to re-record backup copies of DVD'a, where that midtone glitch is rather obvious. Tapes are so cantankerous I can't see why users don't use a histogram to make corrections for levels during capture. As far as I know, DV capture cards don't offer that as a feature. But the AVT does have image controls that can help.
Last edited by sanlyn; 12-08-2015 at 09:20 AM.
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12-08-2015, 11:11 AM
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With Edius [Canopus new Grass Valley [I have been working more than 12 years.
Here I work with Avid Media Composer 8.1 / Adobe Premiere CS6 + Sony Vegas Pro 13 ......... so I know what is good and okay.
Nobody so expensive capture cards buys like the Canopus NX, I know.
I have 4 Cards it cost 10 thousand Swiss francs together then.
Other cards are Viewcast Osprey 240e / Blackmagoc Studio 2 [HDMI + SDI in and out] and Matrox MXO2 LE.
Old capture cards I do not call now.
Here are tests with other "TBC"
Datavideo TBC-1000 + TBC Enhancer of Electronic Design.
Test with another TBC I do not when I have more time.
Luckily there also friendly "Avisynth genius" with whom I can entertain myself.
These have not as many devices as I, but in questions about Avisynth always helpful.
Quote:
The two dark bars on the right look like they could be close to NTSC (7.5 IRE) and PAL (0 IRE) black.
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Here PAL is set.
I know about IRE already Communication.
Black left and right is just because I have the preview window slightly stretching the width.
The connected control interlaced monitor I do not see the two black bars, of course.
Since I have attitude NTSC + PAL ... 4: 3 and 16: 9 and "Under Scan"
addendum
What is bad is only of Canopus ADVC-300.
[I have the 100 + 300 + a 1000]
DV Storm [analog capture in UYVY] + Canopus NX for HDV [analog capture in YUY2] with additional maps and Bays is the best that I have here.
60 minutes a little tight, it still has other work or other PCs.
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01-03-2016, 12:56 PM
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Site Staff | Video
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I've rarely seen the DataVideo TBC-100/1000 soften anything. When that happens, it may be other issues at play. Perhaps VCR<>TBC signal compatibility is at fault. I've not seen anything in years now. And I often think the VP-299 half of the TBC-1000 is to blame, not the TBC-100 half.
Processing always augments colors some. Nothing is perfect. And it varies from tape to tape, workflow to workflow, VCR to VCR. This is why proc amps are important to have, and why most TBCs have a mild proc amp tweak embedded. Non-proc amp TBCs are actually the deviation, not the norm.
I have tests to post as well. I took quite a few last year, especially to compare the AVT-8710 to the TBC-100 and TBC-3000. I'm getting a test TBC from a member here, and want to test it as well. I have some curious findings to share.
I've always wonder about the AVT-8710 (CTB-100) power ratings for Europe, and where to get a plug. I have several new AVT-8710 TBCs, but they only come with USA plugins. Not sure what to do if anybody in Europe ever needs one.
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01-03-2016, 01:49 PM
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Quote:
Originally Posted by lordsmurf
I've always wonder about the AVT-8710 (CTB-100) power ratings for Europe, and where to get a plug. I have several new AVT-8710 TBCs, but they only come with USA plugins. Not sure what to do if anybody in Europe ever needs one.
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They would have to get a power converter. My dad bought me an American Super Nintendo back in the day and he had to buy two of them for me. One for the console and one for the American tv I needed due to different antenna cable.
I'm pretty sure he got them at RadioShack, but I have heard they are not what once used to be.
Also make sure to tell them to get an extra adapter for the plug because they can be very short and won't fit in a "socket array".
I sold my old converters with the console so I can't show you what it looks like. I could have sworn I saved one just in case but I can no longer find it.
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01-03-2016, 01:57 PM
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Site Staff | Video
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Nah, the AVT-8710 is the CTB-100, and has a worldwide power supply. But it doesn't list the specs. And even USA models have variations. Yet I think all are the same.
Power converters always introduce undesired RFI noise.
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01-03-2016, 02:10 PM
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So it comes with a switch for 220v but only american plug? I have never seen a worldwide power supply I think. Guess you could get away with just a simple adapter plug.
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01-03-2016, 02:14 PM
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Site Staff | Video
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Join Date: Dec 2002
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No, no switch. It's no different than the 110~240 rated JVC HR-S7965EK. The PSU is just smart.
But the USA model only has a USA plug.
What is needed in Europe? Any CTB-100 owner can to shed light on this?
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01-03-2016, 02:32 PM
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Can't you just use this?
http://www.amazon.com/gp/product/B0058EG0KC
I really doubt that little thing draws more than 16 amps.
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