RGB-SCART to Composite Video(or S-Video) for video capture

Here's what i want to do, basically my hardware is all PAL and mostly runs on RGB SCART,

my capture device has S-Video in and Composite video in( capture device is pal/ntsc compat so all good there)

again most of my consoles are modded to output NTSC 60hz via RGB but obviously cannot do this in colour via Composite

So i'm looking for the easiest / cheapest way to go from RGB scart back to composite video or even s-video so i can do NTSC / 60hz captures in colour


i don't mind mucking around with a soldering iron etc, but dont want to swap out the crystals in the systems for example.

any ideas for RGBS > CVBS / S-Video?

 

You can use those RGB encoders for arcade boards or consolized systems.

There's the Neobitz that can do it. I believe those kind of boards might be the best bet.

Since we are talking about recording and you're in PAL land.
Why don't you use anything to record RGB?

I've searched for anything that could do it but I wasn't able to find anything.
Maybe you know about something.

 

RGB SCART typically uses composite video for sync (depends on console though).



Wiring pin 19 to the middle of an RCA connector and pin 17 to the ground would result in composite out.

S-Video would be a little more tricky, but I don't really feel S-Video is very good at all. I live in an RGB zone though so hey.

 

but i assume then the composite out would still be black and white when in 60hz mode?

 

That would depend on the capture device. It should be colour unless you're using a TV from 1970.

 

You can always get some small jumper wires and connect R, G, then B (sequentially) together with Sync into your S-Video luma input. You'll have to digitize 3 times and then manually combine the colour channels. It's a bit fiddly, but it's the poor-man's way of capturing RGB. It's what I did for my screen captures here:

http://www.chrismcovell.com/gotRGB/rgb_compare.html

 

i think what im going to do is throw together a RGB > NTSC circuit with a RGB to NTSC encoder chip and oscilator crystal similar to what people do with RGB from a NEO GEO MVS when consolizing

i had some minor success using a DVD recorder as a passthrough (it has RGB scart composite and s-vidio inputs) and also the same outputs + component i did get colour with this but it was giving me the NTSC as PAL so there's annoying jumping / fram skipping it only has the options for PAL, SECAM and AUTO

for still shots the method you posted would probably work fine, but i need to capture video

thanks for the suggestions, and if there's any more then that would also be welcome!

 

I use one of these to convert RGB to S-video. http://www.sintron-hk.com/Wei-ya-CV-04-RGB-CGA-to-TV-composite-video-converter--P2699937.aspx

 

If you've got a DVD recorder, can't you just record to DVD?

Yes, easiest is to build an RGB to s-video adapter as per arcade units... or get something pre-built like a JROK.

 

yeah but only in pal, it will show a nice clear rgb ntsc picture but it's annoyingly jerky, i assume it's doing some kind of internal conversion from NTSC to PAL, as it's the same jerkyness i get if i convert a NTSC DVD to pal for example 29.whatever fps to 25

 

You can't convert NTSC to PAL well, cheaply. A video recorder with NTSC playback should give you PAL60 out, but a DVD recorder isn't designed to record NTSC.

Far better to just record the NTSC signal than try to convert it to PAL, for sure! So avoid using any device that will do so as a passthrough.

 

yup thats the whole point of the thread lol

 

You misunderstood my point.

Use a VCR, not a DVD recorder.

VCR needs to understand NTSC / 60Hz. DVD doesn't. So a VCR, in theory, should be able to pass a 60Hz signal through s-video.

If that doesn't work (or you don't have one), THEN get a JROK or similar.