The 4:2:2:4 is exactly what I was talking about. Thanks for all the help

I think embedded AES would really be useful for audio-follow-video if the switcher would switch the audio straight through. It would certainly make it less complicated. Other than that... Well, it seems like you'd spend a lot of money on rackmount AES embedders/de-embedders for not much benefit. 4:2:2:4 sounds like a really good idea to me on trucks with lots of keyable elements going on and a shortage of inputs on the switcher. As long as the switcher doesn't count your combined key and fill as two inputs instead of one, that is. Imagine never having to manually set up key/fill pairs ever again, except for gang-rolled DDR channels. But then, if DDRs took advantage of it, you would magically get twice as many keyable DDR channels as you had before. Or maybe I'm just dreaming.

I thought the sony does embeeded audio on it's internal Ram recorder. I think the xtend does as well, no?? never used either in practice, thought I read it could though.. Bill

I'm afraid that in the land of Video, no one has taken advantage of embedded alpha's (the last 4 in 4:2:2:4) and it is either stripped when it enters the switcher or ignored (although I cannot imagine wasting backplane bandwidth on data that is not going to be used). So you'll have to run that extra cable to get the key signal into the switcher (sorry!) Sony's "clean" mode is their terminology for "shaped" key. If you are using a device that generates "shaped" video on its fill channel then you should put the linear keyer in "clean" mode. This tells the switcher that the video is already "clean" (ie: "shaped" - or no extraneous video around the edges) and so it should not remultiply the fill by the key (which most keyers do by default). Interestingly, the Deko defaults to shaped keys, while most other CGs generate unshaped keys, maybe this is the crux of the matter? If so, "clean" is the mode you want, but you still have to run that cable for the key signal! We haven't even begun to take advantage of embedded AES audio (wouldn't it be nice if we could track Clips played out of the still store? - All you A1's can keep your opinions to yourselves!) so it might be a while before we see devices using embedded alphas. Then again the new Kahuna (see ad at top of page) might do so - I just haven't been able to find a spec sheet or a user manual or get the training to find out!

[quote="sahonen"]SDI video has a 4:2:2:4 mode where the key signal rides along with the fill signal, I believe that's what he's talking about. I've never actually seen anybody use it, though, so I can't help, sorry.[/quote] I've never heard of any switcher that uses that mode. It will take 2 inputs - one for video and one for key. If the original poster is looking how to set up an auto select table, it's in the engineering setup menu under MAIN V/K XPOINT ASSIGN. The DVS-9K and MVS series do not require you to map the key signal to a separate button as the old 7000 series did. Maybe that's what he's referring to in the post? RE

SDI video has a 4:2:2:4 mode where the key signal rides along with the fill signal, I believe that's what he's talking about. I've never actually seen anybody use it, though, so I can't help, sorry.

[quote="bpedersen"]Does anyone know how to set the DVS9000 so that it can key an input that has an alpha channel. What I am trying to do is feed a video output from a Deko 1000 with an alpha channel, without having to feed it a key output from the Deko. I have had my directors try to do this but it just doesn't key correctly. From what I can find sony calls it Clean Mode instead of an alpha channel. Any thoughts?[/quote] Hi, I'm a little confused at what you're looking to accomplish..... Your Deko would certainly have a key channel that would need to go into the switcher in order to key correctly (i.e. transparencies, etc). Are you looking to do a self key? If so, you can either set the self-key mode in the keyer's menu or on the control panel (in the keyer section) hold down AUTO SEL and SPLIT at the same time (don't ask why -- it's a Sony thing that's been there since before dinosarus roamed the earth..... no matter how much we complain they won't change it to sinly toggling AUTO SEL). If either of these are not what you're looking for, please write back and I'll try to dig a little deeper. RE