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July 20th, 2011, 12:42 PM | #1 |
Regular Crew
Join Date: Jun 2010
Location: Philadelphia, United States
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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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July 26th, 2011, 01:32 AM | #2 |
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Location: Mumbai, India
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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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July 26th, 2011, 06:57 AM | #3 | |
Inner Circle
Join Date: Jan 2004
Location: Boca Raton, FL
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Re: Can I buy a composite>VGA converter with inputs for multiple devices?
Quote:
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 http://www.bhphotovideo.com/c/product/749627-REG/Atlona_AT_VGA0404_A_4x4_Professional_VGA_with.html 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: http://www.bhphotovideo.com/c/product/456570-REG/FSR_MAS_3200_MAS_3200_Scaler_Switcher.html 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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July 26th, 2011, 03:06 PM | #4 |
Inner Circle
Join Date: Jan 2004
Location: Boca Raton, FL
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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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