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Chroma keying LIVE


FirstNews8

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Well, i would like to do this just like meteorologists do, with a computer hooked up, and a camera, and a monitor to view it where you point. This is for our high school, they have everything set up to do all the taping and the other work, but the chroma key for the weather isnt set up, they dont know how to do it. So if you know of anything please let me know, THANX!

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I think what they're looking for is a way to have the studio monitors display the feed of the weather studio cam with the person in front of it and the graphics behind them. They can add the graphics in later but that's makes it difficult to tape because the graphics aren't being displayed simultaneously and whoever is doing the weather has to guess where the graphic will be after its inserted in post-editing. So they're looking for some kind of relay system for the monitors that will add the graphic in right there and then so the person can actually see where their hand is in relation to the graphic. And I'd love to hear what others have to say cause I have the same problem w\ my broadcasts.

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...also from experience, you do NOT want to use one of those cheapy Videonics units for chroma-keying.

 

Seconded. We had to use videonics equipment to do our broadcasts, when I was in H.S., and it's awful. We had the idea to incoporate weather in our newscasts, but the chroma keying function was awful, it doesn't key-in all the way. Not worth investing for your project...

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a good consumer-grade (but loaded with many professional features) switcher would be the TriCaster from Newtek -- Newtek is the same company that made the Video Toaster systems from the late 80's onto present. The TriCaster is a small and portable Windows XP box, a self-contained switcher with built-in character generator (in other words you can run pre-built OTS, L3, full screens [supports animation]), a built-in VTR with hard drive for storing video and playing it back live to air, a plethora of transitions and effects (even 3D ones), and the chroma-keyer is as good as a professional external unit. For schools that can afford one, this is a very good investment that can power an entire broadcast (compare to the very basic Videonics switcher that many schools have, priced at over $2,000), this unit is about $5,000 and has is incomparable in its ability. Another awesome feature for school newscasts that incorporate weather forecasts, you can use another computer running Powerpoint directly over the network as a video source...no scan converter or video cables necessary! This thing will even run a live online stream of your broadcasts if you want!

 

I can speak from experience that the chroma-key function on the TC is just about as good as you can get from any Grass Valley/Sony/Ross/etc. switcher. Very clean, and able to work in a wide lighting latitude----my high school studio's chroma wall isn't lit that well, but the TC still keys like a champ.

 

About the only thing it can't do too well is graphics, but just ask the fine folks here to design them for ya.....:p

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  • 2 months later...

...also from experience, you do NOT want to use one of those cheapy Videonics units for chroma-keying.

 

Seconded. We had to use videonics equipment to do our broadcasts, when I was in H.S., and it's awful. We had the idea to incoporate weather in our newscasts, but the chroma keying function was awful, it doesn't key-in all the way. Not worth investing for your project...

 

So, for the Videonics mixer.... does it work at all? or does it have spots and such where it dosnt key fully? I know you have to have very good lighting for that. I am looking on eBay and have asked several people with Panosonic mixers, JVC mixers which are near my price range... and they dont have a clue what even chroma key is. What mixers have and dont have the chroma key features. We have a very tight budget for this $400-under, if you could point me in the right direction that'd be great.

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  • 3 months later...

I believe this is probably exactly what your looking for: http://www.adobe.com/products/visualcommunicator/ . You can download it and use it until its debut (which is very soon if it didn't already pass). Basically the program splits your screen in thirds. Left is a live monitor, which you can chroma key a preview in real timel; middle is a prompter; and the right side is where you put titles, effects, OTS ahead a time. I hope this helps.

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I believe this is probably exactly what your looking for: http://www.adobe.com/products/visualcommunicator/ . You can download it and use it until its debut (which is very soon if it didn't already pass). Basically the program splits your screen in thirds. Left is a live monitor, which you can chroma key a preview in real timel; middle is a prompter; and the right side is where you put titles, effects, OTS ahead a time. I hope this helps.

It's running until September 30th. I'm using that for USNCD right now. It's a pretty good system.

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