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HD into SD timeline issue
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[santellavision] “ut what Edit to tape, any issues with laying to Beta with the fields set to off?”
Nope, the signal is still interlaced, it’s just that each frame has two identical fields instead of two different ones. There’ll be no issues and you will keep the progressive look. The Kona cards can do this in real time and if you are going to be working in HD, they are a necessity. You can use your io on the same system to bring analog SD material without a problem and yes, your NTSC blackburst will be fine. You will need tri level sync if you are using very expensive ultra high end decks and editing in 1080psf @ 23.98.
Jeremy
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[santellavision] “Shot 720P30. I was also trying to lay to BetaSp using AJA Io (No Kona yet) So, I can’t do down convert thru Kona at this time. What’s the procedure to drop the 720P timeline into a Uncomp8”
You should just be able to drop it in. FCP 5 adjusts the Motion tab settings accordingly. There shouldn’t be any problems, especially with the source being progressive. I curious what’s going on exactly. What are you monitoring this on?
II agree with everyone else here though. Get a Kona 3 if you are gonna do this regularly.
Sean
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[santellavision] “Walter, did I read somewhere that you can keep and use a AJA IoLA for analog vid/aud outputs for dubbing?”
Absolutely, the Io and Kona series work very well together. We have a single Io LA which we keep with our three Kona systems. Since it’s an external box, it can move between systems just fine.
Walter Biscardi, Jr.
https://www.biscardicreative.com
HD Editorial & Animation for Food Network’s “Good Eats”
HD Editorial for “Assignment Earth”“I reject your reality and substitute my own!” – Adam Savage, Mythbusters
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Monitoring on a high-end, SD NTSC monitor. The 720p footage in the Uncompressed 8 timeline is alising badly. But when I turn off the fields to NONE, it looks perfect. I will try to post a pic to show what it looks like.
Ernie Santella
Santella Film/Video Productions
http://www.santellaproductions.com -
Here’s two images. It’s a little hard to see, but notice the weird artifacts/ailising on the top pic (Lower field selected). The other is super clean with None selected.
Ernie Santella
Santella Film/Video Productions
http://www.santellaproductions.com -
Ummmm, the CRT monitor is turned off, right? :). I see the corner of the computer monitor, and I see what you are talking about.
What does it look like on the broadcast monitor thought? When you output it through your AJA. This is after rendering, right?
When you see interlacing artifacts, is it every frame, or every 2 out of 5 frames? Is it during playback, or only when parking it on frames?
Is this the latest FCP (5.1.2)? Is scaling quality in sequence settings set for “best”?
Turning field dominance to “none” means your sequence is set for 480p30. So there won’t be any interlacing at all. But SD video is supposed to be interlaced and it will need to be that way at some point when you output to BetaSP. If your IO still works with a 480p timeline (I’m not too sure it will) then there’s your workaround I guess.
Sorry its the weekend so I can’t test this myself. As far as the DVD, definately just use a DVCProHD timeline and export using Compressor like everyone mentioned.
It might be worth giving AJA a call about this. Essentially, its their product you’re having trouble with. There no reason you shouldn’t be able to send DVCProHD footage to a BetaSP deck with the IO.
Sean
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Sean,
Thanks for the help. I’ve checked your questions.
All current, OS10.4.8, FCP5.1.2, QT1.1.3 AJA drivers etc.
Check all the system settings and the timeline settings. (Even changed them to see if that would do anything. – nope)
-Set to ‘Best’.
-All Rendered.
-Every frame.Look at the edge of the shelf where the arrow is pointing. See the ailasing on the horizontal edge?
Then it’s smooth with ‘None’.I also see it on the Mac monitor, not just the NTSC monitor, so I know it’s not the AJA adding it. It’s in FCP. I ordered a KONA3 and should have it this week. I’ll see if that solves it.
Ernie Santella
Santella Film/Video Productions
http://www.santellaproductions.com -
Lol, I was looking at the monitors in the picture. I didn’t realize the picture itself was what you were talking about. Yes I totally see it. Looks awful.
That’s definitely FCP’s scaler screwing something up. Incredible. I’m going to try this myself on Monday.
Not to bore anyone, but I think I know what’s going on. It seems FCP is not designed to properly downconvert 720p footage. You see, when it downconverts 1080i, all it does is throw away every other line making it 540 (which translates to 480 non-square pixels). It appears it applies the same scaling technique when the source is 720p – which is totally ridiculous. I believe it interlaces it first, then scales it. It should be the other way around. Just a theory though.
I’m just so baffled how FCP seems to be increasingly disappointing as time goes on. It’s still a total joke when it comes to working with multiple formats or even just converting one format to another. Its 2007 and they haven’t addressed this yet. What you have just shown me should NEVER happen. Unbelievable.
I’m certain the Kona 3 will solve your problem. But I myself wouldn’t want to have to output to tape just to convert one format to another – let alone be unable to mix formats. Apple better come up with something by the next version, and the next version better be around by NAB this year. I’m on the verge of considering Avid or even going back to Media 100.
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Sorry you are disappointed Sean. If you are on the verge, what is stopping you? Does Avid or Media 100 downconvert to SD without the aid of capture cards well? AFAIK, both require capture cards for such functions.
Mixing formats on a timeline…easily solvable with a capture card. That is what Avid and Media 100 used to do. To me, that is low on the priority list. Downconverting? Again, capture card. Upscaling? Some capture cards. Does Avid upconvert or downconvert well? I’d be surprised if it did.
But this is neither here nor there. I know that FCP isn’t for every situation. It is a tool. Avid is a tool…Media 100, a tool. Each tool has it’s strengths and weaknesses. There are things Avid does that FCP doesn’t, and things FCP does that Avid doesn’t. Media 100 is hanging on so it must work for more than a few people. If there is something you need to do that FCP cannot do, but Avid can…by all means use an Avid. I would too if I was presented with a situation that Avid did better. I use FCP because it does what I need it to do. But, I also edit on Avids for several companies because they still work (even though they are all running OS9).
Need to mix formats on the same timeline? Avid does this? Use the Avid. You wouldn’t use a hammer to pound in a screw…you’d use a screwdriver.
Shane
Littlefrog Post
http://www.lfhd.net -
You can’t get from 1080 to 480 by throwing away every other line
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