-
SD
A few questions about SD:
1. Is Standard Def the equivalent of Betacam? DigiBeta? Is there a website that defines what Standard Def is?
2. I suppose you capture to SD from the component output of the Beta Deck. If Im correct (not sure), Is the quality of what gets fed through component really good? I thought SDI was way above Component and component was slightly above S-video. BUt then again, Im not sure I understand the difference between YPbPr and YCbCr…
Thanks a lot -
6 Replies
-
The answer is “42”.
-
[ntz] “1. Is Standard Def the equivalent of Betacam? DigiBeta? Is there a website that defines what Standard Def is?”
Standard Definition is DV, DVCAM, Betacam, DigiBeta, DVCPro, etc… Generally SD footage is 720×486 frame size in NTSC and I think 720×540 in PAL.
[ntz] “2. I suppose you capture to SD from the component output of the Beta Deck. If Im correct (not sure), Is the quality of what gets fed through component really good?”
From BetaSP, Component is the best signal you can get. SDI is a digital interface for capturing from digital sources like DigiBeta, DV, DVCAM, etc…. though my Sony J3/902 Player does allow me to capture from BetaSP via SDI.
Walter Biscardi, Jr.
https://www.biscardicreative.comNow editing “Good Eats” in HD for the Food Network
“I reject your reality and substitute my own!” – Adam Savage, Mythbusters
-
Thanks a lot. Is there a website that explains all of this in more detail?
-
Yes. Google.com. 🙂
Or maybe here, at the cow. I’m sure we have a forum somewhere…
-
Well, DV is “standand defintion” with lower case. This means that It is standard definition in a strict sense, but Standard Definition with upper case is a moving target that usually applies to SD formats that are regarded as being really broadcast quality: DigiBeta, D1 (and other almost extinct “D” formats), DV50 (DVCPRO50 and Digital-S) and Betacam SP. Yes, I know that Beta SP is really another history, and even not better than DV in some aspects, but hey, I am not the one who makes the categories 🙂
The main common feature between most of these formats and the DV range is 4:2:2 color sampling and less drastic compression.
FWIW, this differentiation between DV and SD is all over Apple’s and Avid’s documentation and marketing material. Obviously, thery are not the final judges about anything, but they probably did extensive research about the people they are aiming to with their products.
You used to have DV, SD and HD as three production ranges or segments. This will surely grow to DV, SD, HDV and HD, since most people agree that HDV is really not close to Pro HD formats like HDCAM, DVCPRO HD and up.PAL D1/DV is 720×576 🙂
All the best,
Adolfo Rozenfeld
Buenos Aires – Argentina
https://www.adolforozenfeld.com
adolfo@adolforozenfeld.com -
HUH??? SD does not apply to any DV formats. SD applies to the resolution of the image. SD is specifically the 720×486 spec. 2 specs, SD (720×486) and DV (720×480). HD is of course another beast and has lots of specs of it’s own.
AE and Photoshop reflect the same specs.
That said, everything that comes out an analog port has 486 lines. The DV spec only applies to the digital specification. Pretty much if you were to digitize off the component or SDI output of a DV based deck, you’re now working in Standard Def, because you would utilize a SD composition to accompany the SD signal. When DV is played out an analog or SDI port it adds 6 empty lines to the signal. Those lines are simply hidden by the overscan.
Reply to this Discussion! Login or Sign Up