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Old July 20th, 2011, 01:42 PM   #1
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Can I buy a composite>VGA converter with inputs for multiple devices?

I need to connect two different camcorders to two different VGA screens. To do this, I know I need a converter. Do i need a separate converter for each one? Does anyone sell a converter box that lets you hook up multiple devices?
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Old July 26th, 2011, 02:32 AM   #2
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Re: Can I buy a composite>VGA converter with inputs for multiple devices?

If its either component or composite, then the converters are standard.
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Old July 26th, 2011, 07:57 AM   #3
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Re: Can I buy a composite>VGA converter with inputs for multiple devices?

Quote:
Originally Posted by Noam Osband View Post
I need to connect two different camcorders to two different VGA screens. To do this, I know I need a converter. Do i need a separate converter for each one? Does anyone sell a converter box that lets you hook up multiple devices?
This could be interpreted a couple ways. Assuming the obvious of hooking one camera up to one projector and the other camera up to the other projector is not what you meant, are you saying you have two projectors (1 and 2), two cameras (A and B) and you want to be able to show camera A or B on projector 1 and at the same time, show camera A or B on projector 2? You want audio with that video?

Most projectors accept composite video but assuming that's not an option based on your post, there's two separate things you need done by either one box or several.

1) Scaler: Each camera output has to be scaled up to VGA
2) Matrix (aka Router): 2 VGA inputs neet to be routed to two VGA outputs
This approach requires a 2x2 VGA router with a built-in scaler or to do it with multiple boxes, you need two scalers and a 2x2 VGA router. Search B&H for those devices..... here's a 4x4 VGA matrix with audio
Atlona 4x4 Professional VGA with Audio Matrix AT-VGA0404-A B&H

An alternative approach is to use a 1x2 composite distribution amp on each camera that gives you two composite lines per camera, then put them thru a 2x1 composite switch and then scale to VGA. There are variations on this depending on what boxes may do some of these steps built-in. Here's an example of a multi-function box you might create a design around:
FSR MAS-3200 Scaler / Switcher MAS-3200 B&H Photo Video

BTW, you need to know what resolution your projectors run at, VGA isn't precise enough.... you could get a box that doesn't scale up to the resolution that your projectors run at....
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Old July 26th, 2011, 04:06 PM   #4
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Re: Can I buy a composite>VGA converter with inputs for multiple devices?

Another thing I forgot to mention is sync. When you switch video signals, you want a clean switch without breakup. Professional devices let you provide a sync signal to the devices so operations line up. You also need a master signal generator or black burst device.
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