keithcourage: I'm also interested in the old svideo mod (that uses the composite output, not RGB). Can you post that circuit? If I remember correctly, Y+C.. Y gets a pure Y signal and C actually gets Y+C right? So no Chroma interference to Luma, but luma interference on Chroma. I'm curious what that looks like. And if it's possible to use a clean Y to pull the Y interference out of the Y+C, to clean up "C".
I've been doing some tests lately with the vectorscope I recently picked up. It only handles composite and component video, but I'm able to use the retrotink RGB2COMP to compare RGB in YUV color space. I'm documenting all the characteristics of the PCE CVBS colors (there's a lot to show!), so I need a reference point. RGB works for now, I but I'd also like to get SNES and Genesis into the mix via CVBS.
SamIam discovered something about the composite output; the external resistance is a feedback mechanism to the internal generation of the other components. As in, the final phase of composite colors is the finetune circuit of the resistors coming off the pins of the VCE. While Svideo is possible, it's going to take some time to figure out what resistor values are needed for that circuit to replicate the same color characteristics of the original CVBS. And because of how that works, I'm beginning to think that YPbPr isn't directly possible using the VCE outputs (because of the mixing and feedback nature for color space generation). But now that I have a vectorscope capable of component video, I could try such a component circuit with some inline pots to see if it's possible to dial it in.
_jash: SLG= Silly Lunatic Games/
Feb 2, 2023 19:04:13 GMT
tron: I hate strictlylimitedgames jash even more so when they get the rights for physical release of anything by taito.
Feb 5, 2023 11:22:34 GMT
spenoza: It occurs to me that this same limited physical release approach has hit other hobbies as well, like tabletop role playing games. Companies in that space that aren't Hasbro are all small and so they tend to do limited prints of books and then lean on pdfs.
Mar 8, 2023 20:23:43 GMT