> I am thinking of using this to split a signal, not for capture but to have a head to head fighting game setup. The methods I use normally is passive and reduces the brightness/saturation of the image. But I also need the output to have less than 1f of input lag.
This is not a good solution for that. The split out output is for typical 75ohm terminated video like consumer TVs or OSSC, not arcade monitors.
> Is there a frame buffer or processing that would cause input lag (and has it been tested)? And this would solve the brightness issue too right?
No frame buffer. There is no lag.
> Also, I am purchasing this pre-assembled on ebay. and it looks like the version with screw terminals. I just wanted to confirm that this version has the audio being output to the 8-pin din right (assuming they followed the schematics properly)? Or is there an older version with this form factor that does not have the audio connected.
Afaik, the version sold on ebay does some hacky thing which bypasses audio to the mini-din-8.
I do not recommend doing that.
None of the versions I've designed passes audio on mini-din-8, since that would imply having shared GND between video and audio, which can cause ground loop noise.
edit: To clarify, I am not involved in any sales of this on ebay.
It is open source hardware, so people are fine to modify and sell it as they see fit though, just be aware that I won't know much about any modifications