Capturing from 2 analog/composite video inputs simultaneously

[Lebowsky]

Hello,

First of all, I would like to thank this forum for all the resourceful info on it. It's been really helpful. However, I haven't found an answer to a problem I am encountering at the moment.

For a project at work, I need to be able to capture from 2 analog video input at the same time. Composite connectivity but it can be converted to s-video if needed, the cameras are our own deign.

I'm taking caring of the video acquisition part, and I need to capture from both sources at the same time, and synchronized of course.

The only solution I have found yet is using those 2 USB converters from Imaging Source:
http://www.theimagingsource.com/en/products/converters/dfgusb2lt/overview/

It works ok, even though they need their own usb controllers to guarantee the bandwidth.

What I am looking for is PCI card with 2 composite inputs that can allow me to capture simultaneously at 25 or 30 fps.

Any insight of where to look for such a thing?

Thanks in advance for your input.

[olyteddy]

Take a look at some of the security camera stuff. I've seen hard disk recorders with up to 16 inputs. Googling 'Security Camera' turns up scads of dealers.

[FlimsyFeet]

Yes you can get BT878-based cards for security cameras with 4 composite inputs. However, the framerate drops as you add more sources, i.e. you can capture from one input at 30fps, but 2 inputs are limited to 15fps each. Having siad that, there's nothing to stop you putting 2 PCI cards in and having one souce connected to each.

[burfadel]

If you just need the video, then you'd probably be ok with that, but if quality was a concern the BT878 chipset is old and won't cut mustard.