Genlockable twin composite output?
Hi all,
I want a computer to take the following input: - A composite signal that the computer will genlock itself to And produce the following output: - A composite signal in PAL format that is genlocked to the input - A second composite signal in PAL format that is genlocked to the input, and synchronous with the first output. What's the cheapest way I can do this? Obsolete hardware and less-than-perfect options are what I need. The reason why I need this is to drive a vision switcher that takes a signal into its key bus, as well as an alpha signal. I want to play a grayscale animation which represents the alpha component, synchronised to the key signal, and it all has to be genlocked to the black generator. Now, playing the two animations simultaneously is a bit of a problem, but it's a software problem. I'm trying to avoid having to spend many thousands of dollars on a DigiSuite or equivalent, when it seems that consumer-level hardware can produce an S-video output that does most of what I want! |
Is the input also PAL or will it be NTSC or some other format?
.. "Richard Cavell" wrote in message om.au... Hi all, I want a computer to take the following input: - A composite signal that the computer will genlock itself to And produce the following output: - A composite signal in PAL format that is genlocked to the input - A second composite signal in PAL format that is genlocked to the input, and synchronous with the first output. What's the cheapest way I can do this? Obsolete hardware and less-than-perfect options are what I need. The reason why I need this is to drive a vision switcher that takes a signal into its key bus, as well as an alpha signal. I want to play a grayscale animation which represents the alpha component, synchronised to the key signal, and it all has to be genlocked to the black generator. Now, playing the two animations simultaneously is a bit of a problem, but it's a software problem. I'm trying to avoid having to spend many thousands of dollars on a DigiSuite or equivalent, when it seems that consumer-level hardware can produce an S-video output that does most of what I want! |
On 20/10/04 3:22 AM, Matt wrote:
Is the input also PAL or will it be NTSC or some other format? The input is from a PAL black generator. I'm not proposing any kind of scan converter. |
"Richard Cavell" wrote in message
om.au... On 20/10/04 3:22 AM, Matt wrote: Is the input also PAL or will it be NTSC or some other format? The input is from a PAL black generator. I'm not proposing any kind of scan converter. sorry... I guess I misread... I'm not aware of a consumer card that could do this but there are bound to be some older NLE edit suites (or at least their capture cards) on ebay or somewhere that could handle this quite easily. I got a Pinnacle ReelTime card on ebay a couple of months ago that will almost do this (though this was an NTSC) for around $250. The only difference is that this card only has one composite out, but it also has svhs, component and SDI out... |
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