So AVISource("vivanco.avi",pixel_type="YUY2") actually works for you? For me it throws an error message because the Blackmagic 4:2:2 decoder only allows RGB output.
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AVISource ("H: \ vivanco.avi") #, pixel_type = "YUY2")
only # works the UYVY edition capture with Blackmagic Media Express [BM 4: 2: 2] with the Canopus NX or via HDMI with Edius is the stream in YUY2. but via HDMI it comes only with the DMR EH65 --------------------------- test...ADVC110 S-Video-colorbar--->vivanco---> Canopus NX |
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The Vivanco I do not need when I'm working with the NX card.
CVBS or S-Video there are even more settings |
Vivanco_NX.avi confirms that the Vivanco can output extra-high levels which the DMR-ES10, sadly, clips.
Thanks! :salute: It's good to know that a proc amp can be used to generate these levels for testing rather than having to find an overexposed tape. If you have time at some point and are willing, I would also appreciate a test of your Panasonic DMR-EH to confirm that it also clips such input. :o Quote:
I have the NX myself, if you recall our conversation previously regarding its lack of jitter correction for NTSC. |
This is all quite surreal. I don't seem to be having any of the problems described. I don't even know where or when I could put this information to use. But it's been fascinating enough for me to save a copy of all of it in the event I encounter other users with the same problems.
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I noticed a high variation in luma between the JVC S-VHS, Panasonic S-VHS (with and without TBC), the ES10, the AVT-8710/CTB-100, and the DataVideo TBC-100/1000 -- and that's outright ignoring other hardware that I could list. My issue is with homemade tapes more than not, especially anything filmed in overly bright or dim light. There's some sort of tape-based issue at play.
The AG-1980P further confounds with capacitor issues, as you're never 100% sure if the caps are at fault. I'm having that problem right now. Sometimes the ES10 doesn't correct really wiggly tapes (bad horizontal jitter), and is best for top-frame tearing use. I experienced that just today. The wiggles caused frame drops and inserts. It's obnoxious. Sometimes I just want to throw the tape against a wall. :rage: |
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original article post 4 http://forum.gleitz.info/showthread.php?47141 Post 6 + 7 http://forum.gleitz.info/showthread....drastic+codecs Post 2 http://forum.doom9.org/showthread.php?t=140820 |
That's the setting I meant when I referred to VDub using its own decoders. I thought it was enabled by default, but now I don't know.
There was something in the extremely long readme file for the Drastic codecs that scared me away from using them. I forget what it was. Can you have Drastic installed at the same time as Blackmagic's decoders? |
Checking this from my phone right now so can't look at all the tests. But thanks so much to you guys for actively participating in the thread, I appreciate it.
On a separate note, I made a suggestion in the past that the forum should have a mobile version, but it was knocked back. Would DigitalFAQ reconsider? It is very inconvenient to use the desktop version on mobile displays. Anyway, moving onward - Quote:
1. How the ES10 handles an overexposed video after levels are lowered by the Vivanco 2. Whether the Vivanco negates the ES10 line correction. I'm assuming it won't if Vivanco doesn't frame sync, but then I'm not educated on how proc amps operate internally and whether that's the only factor. Regarding #1, I understand color bars are a convenient method for testing, but they do not account for the constantly fluctuating analog signal which may be a factor in how levels are handled. My biggest fear concerning the ES10 is that it will always revert to the same range irrespective of proc amp adjustments. Based on the footage it may be an acceptable result or it may not. Based on tests I've read by VH member 2Bdecided, if I understand correctly, the ADVC-110 is one device that does just that. As I said before, its white peak is slightly wrong, acceptable but still imperfect. Refer to this thread over at VideoHelp. An excerpt: Quote:
Out of my hardware collection, I've found my JVC DR-M10 is the standard for capturing full luminance. That's what I'm using as my reference for other devices. Quote:
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DVD test pattern with vertical lines -> Vivanco with luminance cranked -> record on VHS Then: Play high-luma VHS on different VCR -> Vivanco with luminance lowered -> DMR-ES10 -> capture device The confounding factor would be how the VCR's AGC handles the overly-bright input at the first stage. If it does some clipping on the recording side, or lowers gain to bring the bright source into standard range, things will get confusing. Quote:
EDIT: I also wouldn't take 2Bdecided's testing to indicate that placing a proc amp before the ADVC110 is ineffective at reducing the contrast. He said this was a "simple video amplifier". I take this to mean it's amplifying or reducing the entire video waveform without the ability to target the actual active picture level. |
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post 29
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http://www.drastic.tv/index.php?opti...ions&Itemid=95 I can send the email address of Mikey Lee Jones them |
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a recording on VHS tape can do that create itself. There are many devices that output a standard color bars Vivanco was just an example it also works with a Kramer SP-11D or potentiometer adjustment in the recorder |
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Does anyone know if Vidicraft proc amps eg. PRC-100 are PAL compatible? If someone has an answer please let me know asap. |
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I had the 121 and the latest 930 Both green + darker image Quote:
http://www.vidicraft.com/VSC-2112.pdf http://forum.videohelp.com/threads/2...imate-detailer |
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vcr's (excluding those not used for 3 years or more): Panasonic AG-1980P, PV-S4670 SVHS (circa 1996), PV-4665 (circa 1996), rebuilt SONY SLV-585HF (circa 1990). I used JVC in the past but they didn't last long and started eating tapes. frame tbc (when required): AVT-8710, new in 2004. Pumps gamma somewhat, but I can't say it has been excessive. pass-thru tbc: Panasonic DMR-ES10 and DMR-ES15, Toshiba RD-XS34. proc amp: Sign Video PA-100 (new in 2005). capture: ATI AIW 7500 and 9600XT AGP Radeons, VirtualDub capture to lossless huffyuv. Tapes: occasional homemade analog tapes from sister and other relations, some made by pros (wedding, bar mitzvah, baptism, etc), the last of which I digitized about 18 months ago. Several ancient retail VHS prints (one obviously trashed by Macrovision). Hundreds of hours of home EP/SP tapes recorded off cable tv, still have several SP and SLP tapes. Except for bad lighting situations, the home camera tapes tended to be slightly underexposed, or maybe they're just old, or like my sister they use batteries until the Bunny dies. Several years ago I worked with some DV. The experience kept me away from DV ever since. Analog has its own problems, but I don't get bright "spikes" or burnout all over the place. I see it often with DV. When someone asks me about transferring DV, I suggest digitalfaq. |
Sanlyn,
Thanks for posting your hardware / capture info. It doesn't look anything out of the ordinary however so I don't see how the ES10 issue could've been omitted. If you still own it though then it's certainly worth another look. Quote:
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Thanks for the VideoHelp link though. There seem to be very mixed reviews about PAL compatibility for Vidicraft / Signvideo gear. It would be nice to get a definitive answer if possible, the model I'm currently looking at is PRC-100. |
use cash cow ;-)
http://www.signvideo.com/products/pr...o-proc-amp.htm Feeder ----> passthrough Pana AG7750 ----> ES10 or Feeder ---> ES10 ----> passthrough Pana AG7750 |
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Your notes are still of great interest, even if I don't have the components to repeat your tests. :wink2: |
I saw this the other day: http://www.tgrantphoto.com/sales/ind...n-modification
I would be worried that the unprocessed image bottom would negatively impact the ES10 AGC. |
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