Multicam Live Editing with Firewire and Mac Pro

Hello everyone.

We are planning on doing a multicam live edit of a meeting very soon. I’d like to edit this in Boinx using the switcher layer.

I have tried it with two FireWire cameras and the computer is fine with this (both in the front ports)

Will it work with 3 or more? We are using a Early 2009 Quad-Core Intel Xeon (two FireWire 800 ports on the front and two on the rear)

Thanks

Normally one Firewire bus can only hold one camera (at least from the same vendor). Cameras from the same vendor tend to have the same firewire ID baked into the system and it can’t be changed. Like this the two cameras collide on the same bus and only one can be used. So in most of the cases you will need a dedicated bus for each camera. This is also why e.g. Firewire hubs don’t work. On a MacBookPro you can add a firewire expresscard to get a second bus and on a MacPro this can be done with multiple PCI-Express cards to gain multiple additional busses. Both cards can be found at http://www.boinx.com/boinxtv/equipment