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Hey, with the NEOHD, are you able to get a signal on 10bit setting? I'm only getting a signal on 8bit. |
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That's what I com up with on a web search. http://www.compusa.com/products/prod...ity_HDMI_Cable That's apparently their "cheap" model. |
my friend is trying to fix his dvinfo account, he cant post for some reason. ill let him answer any usage questions, im sick of being middleman :)
hdmi will downgrade the signal if it doesnt get the right feedback from teh display(capture card in this case). the only thing i can think of is the cable not having the right impredence and the camera didnt like it. i bet most people who buy these cables cant tell the difference between HD and SD and wouldnt know to complain. i forced a best buy employee to hook up the hv20 to a 1080p tv for me, he couldnt understand why i wanted to do that because "HDV is an uncompressed format". terence |
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In my setup, the same cable that's not working between the HV20 and Intensity works fine between the HV20 and a 1080i HDTV. |
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As a side observation, without the HDV compression masking the picture and seeing the uncompressed monitor picture so clean, it's sure ALOT easier to see the 8bit limitations and color banding from the 8bit signal. |
"As a side observation, without the HDV compression masking the picture and seeing the uncompressed monitor picture so clean, it's sure ALOT easier to see the 8bit limitations and color banding from the 8bit signal"
you are probvably mostly seeing the limitations of the monitor assuming its an lcd, as they are prone to banding particualrly in the darks. the limits of 8 bit arent perceptable to the eye usually. every display outside a few higher end tv's inputs an 8 bit signal. notebook lcd's are 6 bit. the limits of 8 bit show up when trying to manipulate the footage, which is inherently reducing the amount of colour info. saving as a 10 bit format, even if you only started with 8 bits will allow you some headroom in post. (similar to how its better to convert to 16 bit in photoshop to adjust curves and such, then switch back when completed) you dont gain any colour info, but you lose less. its a bit dissapointing that the camera only outputs 8 bit, but based on the footage, i dont think the sensor has much more than 8 bits dynamic range anyway, so it wont make a huge difference. terence. |
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http://www.clevo.com.tw/products/D900C.asp And you are right about the write speed. Minimum should be closer to 40-45MB/s since it claims a 22% faster performance than the seagate 7200.2 you mentioned. 3x40MB/s is 120MB, which any overhead would bring it under the target rate for uncompressed. (very close though) |
the target rate for uncompressed is 150mB/s for 10 bit. which is what most people would want i think.
edit: also 22% faster than 30mB/s is 37mB/s. and that "notebook" isnt really a notebook. its a folding desktop. the batteries in the old version lasts 15 -20 mins tops. i dont see this one being any better with even more stuff in it and the hard disks under full load. it also weighs nearly 15 lbs. terence |
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David
I have tried to download the neo player but the email with the link has not come through. I have tried it with 3 differenct email addresses now and also checked the junk mail. Could you check to see if its working? Thanks Fergus |
same with my email :(
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Sounds like the email server is down. Unfortunately we can't restart it remotely, so it will tomorrow when you get your emails. Sorry.
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I had a request for you since the intensity card is working with you. I was wondering whether capturing a already taped footage over HDMI has some advantage compared to firewire or not. Can you do a comparison and let us know? Thanks!! Ajit B. |
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http://www.commell.com.tw/Product/SBC/LV-677.HTM http://www.logicsupply.com/product_i...roducts_id/735 http://www.globalamericaninc.com/sbc...rboard_sbc.php Thank you in advance. |
That is a good question. I'd tend toward the aopen boards since they have a built in power supply... although I suppose they still need a regulator for the 19v battery input... I've just had a bad experience with an itx board that eventually burnt out after i ran it off an m1-atx psu for a few months. Then again it might have been the lack of active cooling. The MSI doesnt have dual channel memory, and people from cineform have often said memory bandwidth is a big plus for capturing to their codec. Other thoughts are whether to get a mobile cpu or a desktop cpu. It appears the commell lv-674 can take core2duo desktop cpus, which are a lot less expensive and allow for more options than mobile cpus. It's hard to know about these itx boards though, they are not nearly as widely used and documented as ATX boards so troubleshooting could be problematic. But definitely look for anything that has pci-e x1 and dual channel memory. And if you are going for a mobile cpu, make sure the socket is right.
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Check this mini-ITX mainboard based on intel Q965 Express chipset:
http://www.epiacenter.com/modules.ph...ticle&sid=1064 |
Well that would be a great option if it had pci-e....
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You are right...
But now we can see a lot mini-ITX "santa rosa" based mainboards. Like this http://www.ipc2u.de/catalog/P/PE/35776.html |
I dont think that is santa rosa :)
Santa rosa is a designation for boards that take mobile cpu's and meet particular specifications. That board is LGA 775; santa rosa would be socket P i believe. Chances of finding a socket P CPU for sale right now arent great i would imagine. but you are right, hopefully we will start seeing santa rosa boards. Probably not for a few months though. ITX is usually the last form factor to get new technologies. |
My another mistake...
And next candidate: http://www.aicmicro.com/productdetail.asp?id=32090 |
i looked into more or less every mini itx board available. my conclusions was the a-open seemed to have the best setup for something like hdmi capture.
its got a pci express x1, sata 300, dvi, firewire. most every other board is missing something as they are geared to industrial use. the other benifit is that its a-open, and available everywhere and will be simple to get serviced. on another note.. i got my black magic card, and may have found the answer to the "is the hv20 only 8 bit" question. it doesnt matter. the black magic hdmi input chip (analog devices AD9398) is only 8 bit. to some degree, who cares, its the only solution for now, but they do advertise it rather specifically as 10 bit, and its definitely not. now ive got to work out my expresscard box. terence |
Yeah, I recall cineform tended to recommend the aopen boards a little while back when they were building their si-hd/2k body. Seems like itd be a good way to go. Probably a bit more documented than the industrial models in the same range. Anyone know a good way to run one of those off battery? I assume an 19v li-ion would be a problem as its voltage drops with use. maybe one of these would work?
http://www.batteryspace.com/index.as...OD&ProdID=2737 take it apart and fit it in a chassis? |
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unfortunately that particular pc is of no use for the black magic card. it has no pci express, or expansion capability at all.
hopefully their mini itx version will follow soon, which should be very very useful. terence |
while it is not really mini, i would recommend the shuttle SD39P2 .
It has everything you need. You need to find a VGA PCI card since the only PCIe will be busy with the intensity. http://www.prodimex.ch/pInfos.asp?idxART=10929 |
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Do you have link to specification of this mobo? |
http://global.aopen.com/products_spec.aspx
basically, the acer "mini pc" line uses a proprietary motherboard form factor. it only fits in the case it comes with and has no internal expansion. a-open also make mini itx boards, which is a "standard" form factor, and can allow for usually one card slot of some kind. so far ther have not updated or announced any i965 mini itx boards, but with the mini pc out now, i cant imagine it will be long before they do. most likely the new board will have one x1 slot like the old version, but with updated things like sata2 and such. if they were smart, they would make it and x4 slot and include an expresscard slot as well (the chipset supperts this), but i doubt they will. terence |
Getting closer
Howdy folks.. first post.
I've been lurking here for quite some time now. Being a video runt, there is not much that I can offer yet. But thanks all for the education... I've learned more here than I can possible thank you for. Anyway, I've got a little good news. I've been holding off getting an Intensity card and just couldn't resist anymore emailing Kristian Lam of Blackmagic for an update. With her permission, here is what she said: "I don't want to give any dates right now but we're very close to releasing support. There's just some last minute kinks we need to iron out. Feel free to let the guys on forum know about this." So for all you folks looking for an Intensity update fix, I hope this helps. Oh, by the way, I'm looking at this for doing some stop motion capture using the HV20. So if anyone wants to through me a bone on that I'll do my best to catch it. Mark |
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It great to have another update; even better that it's still positive. Thanks for posting it. Apologies all around if I'm wrong, but I pretty sure Kristian is a he, not a she. |
"Apologies all around if I'm wrong, but I pretty sure Kristian is a he, not a she."
Oh, you are so right. At least that's what Kristian just told me. Excuss me while I wipe the egg off my face. Kristian, my applogies!!. Mark |
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http://www.dvinfo.net/conf/showthread.php?t=91860 |
Thanks Wes, thought I had read all the stop motion threads but missed this one. Looks like I have more searching to do. But this is all off topic, so I'll go over my reasoning in a different thread when I've got my act together.
Ordered the intensity card with the anticipation of the new driver release, should be in next week. I see many more applications other than stop motion fo me... some of them pretty far-fetched... I'll just have to see where it takes me. Mark |
Is there a way to capture single frames from the HDMI using Intensity? The nice thing about using the digital still is you get the entire sensor plus you are mobile and I believe the stills are 4:2:2 plus you can use the remote to take an "exposure" which keeps from moving the camera.
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Mark |
Sounds good. I use BTV Pro for DV stop motion as that works really well at capturing single frames from a DV stream to any format. It also has onion skinning which is useful. Bypassing the JPEG compression of the digital still mode of the HV20 would be a good thing, since you are in a studio when shooting stop-motion usually anyway, being tied to an Intensity box isn't that big of an issue.
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