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| JayBee:
--- Quote from: KenToad on March 08, 2021, 02:11:41 am --- --- Quote from: JayBee on March 08, 2021, 02:04:07 am --- --- Quote from: KenToad on March 08, 2021, 01:59:33 am --- --- Quote from: dmckean on March 07, 2021, 02:33:20 pm --- --- Quote from: KenToad on March 07, 2021, 01:06:43 pm ---Anybody got any suggestions for a no latency analog transcoder from VGA to component? --- End quote --- The GreenAntz one that Zebidee sells on this forum is really nice. --- End quote --- I found the thread about the device and it looks amazing. Thanks! --- End quote --- By the way I got some of the previously mentioned cheap transcoding IC, I will see how well they work with my system ;) --- End quote --- Thanks for doing that! --- End quote --- No problem, testing new stuff is part of the fun ;D |
| Zebidee:
--- Quote from: JayBee on March 08, 2021, 02:15:33 am --- --- Quote from: KenToad on March 08, 2021, 02:11:41 am --- --- Quote from: JayBee on March 08, 2021, 02:04:07 am --- --- Quote from: KenToad on March 08, 2021, 01:59:33 am --- --- Quote from: dmckean on March 07, 2021, 02:33:20 pm --- --- Quote from: KenToad on March 07, 2021, 01:06:43 pm ---Anybody got any suggestions for a no latency analog transcoder from VGA to component? --- End quote --- The GreenAntz one that Zebidee sells on this forum is really nice. --- End quote --- I found the thread about the device and it looks amazing. Thanks! --- End quote --- By the way I got some of the previously mentioned cheap transcoding IC, I will see how well they work with my system ;) --- End quote --- Thanks for doing that! --- End quote --- No problem, testing new stuff is part of the fun ;D --- End quote --- I just wanted to say that the GreenAntz RGB/VGA to YPbPr transcoder should work with GUN4IR, from what I've read here and seen on the YT video. GreenAntz converts RGB to component colour space, but does not interfere with your video modes. Using a component TV with GreenAntz should be just like using an RGB modded TV or arcade monitor with a PC+CRTEMU/MiSTer/Pi etc. GreenAntz accepts RGBHV and RGBs inputs. It comes with a "better" sync combining circuit based on XNOR logic that also has some neat deglitching built in, sync-tip clamping and improved sync "mixing" with luma (Y). That means you get a clearer and brighter picture with no loss of colour definition (unlike other low-quality transcoders on market in same "price bracket"). GreenAntz is based on the same circuit you linked earlier JayBee (it was uploaded by my Aussie mate and collaborator "Dekkit"): https://easyeda.com/dekkit/rgb-to-component-transcoder That circuit itself is an evolution of a circuit I posted on the Aussie Arcade forums several years ago on another forum: https://www.aussiearcade.com/forum/arcade/arcade-technical-and-repair-questions/monitor-and-chassis-repair-help/99015-pc-rgb-to-component-converter-tv-hack#post2157213 From that "GreenAntz" was born and has been much developed since. It is a collaborative project which has grown from the seed of an idea to something that is actually... pretty damn good, if I say so myself :D Until I do enough batches and have enough on-hand to justify listing them on ebay etc., I am selling to forum members for US$45 + courier shipping (to USA that is currently $15, maybe less to other countries). That price is strictly limited because once I start listing online I won't undercut. EDIT: PM me if interested |
| JayBee:
--- Quote from: Zebidee on March 08, 2021, 06:24:11 pm --- I just wanted to say that the GreenAntz RGB/VGA to YPbPr transcoder should work with GUN4IR, from what I've read here and seen on the YT video. GreenAntz converts RGB to component colour space, but does not interfere with your video modes. Using a component TV with GreenAntz should be just like using an RGB modded TV or arcade monitor with a PC+CRTEMU/MiSTer/Pi etc. GreenAntz accepts RGBHV and RGBs inputs. It comes with a "better" sync combining circuit based on XNOR logic that also has some neat deglitching built in, sync-tip clamping and improved sync "mixing" with luma (Y). That means you get a clearer and brighter picture with no loss of colour definition (unlike other low-quality transcoders on market in same "price bracket"). GreenAntz is based on the same circuit you linked earlier JayBee (it was uploaded by my Aussie mate and collaborator "Dekkit"): https://easyeda.com/dekkit/rgb-to-component-transcoder That circuit itself is an evolution of a circuit I posted on the Aussie Arcade forums several years ago on another forum: https://www.aussiearcade.com/forum/arcade/arcade-technical-and-repair-questions/monitor-and-chassis-repair-help/99015-pc-rgb-to-component-converter-tv-hack#post2157213 From that "GreenAntz" was born and has been much developed since. It is a collaborative project which has grown from the seed of an idea to something that is actually... pretty damn good, if I say so myself :D Until I do enough batches and have enough on-hand to justify listing them on ebay etc., I am selling to forum members for US$45 + courier shipping (to USA that is currently $15, maybe less to other countries). That price is strictly limited because once I start listing online I won't undercut. EDIT: PM me if interested --- End quote --- Thanks for stepping in, indeed your device seems a great match for my adapter! :D I'm also using a xnor sync combiner in my device, so a rgbhv to ypbpr would surely be overkill, but rgbs to ypbpr would be neat. I'm wondering tho, my adapter supports 480p+ resolutions, but if I understand it correctly your adapter can't have correct color on HDTV modes, right? |
| Zebidee:
--- Quote from: JayBee on March 08, 2021, 06:48:29 pm ---Thanks for stepping in, indeed your device seems a great match for my adapter! :D I'm also using a xnor sync combiner in my device, so a rgbhv to ypbpr would surely be overkill, but rgbs to ypbpr would be neat. I'm wondering tho, my adapter supports 480p+ resolutions, but if I understand it correctly your adapter can't have correct color on HDTV modes, right? --- End quote --- Thanks JayBee :) The issue is that component colour space for HDTV is different to SDTV. It will actually work with a HDTV that takes 480p in terms of sync, you will get a solid picture, but the colours will be a bit dulled and "green shifted". It has never been a solution for HDTVs that accept component inputs. In most cases you are better off using RGB/VGA/HDMI etc. anyway (there are exceptions, Wii users for example and I'm sorry for them being caught in-between techs). It comes down to them using a different mathematical formula to extract YUV from RGB for HDTV. For more info with less acronyms: https://en.wikipedia.org/wiki/YUV Yes GreenAntz accepts composite sync (RGBs) input now - and normal XNOR csync input will still benefit from the deglitching and better sync tip integration to luma. It take what it gets and gives what it gets, just a little bit better. GreenAntz has always been envisioned as a more affordable solution for retrogamers using older CRT SDTVs that maybe can't be RGB modded, but have component inputs available or can be component-modded. Component modding is often much easier too. This means a great many more TVs available for retrogaming. When I say affordable: Look, you can pay >US$100+ for a Shinybow or whatever that can do HDTV ok I think. If they are even available. GreenAntz is not competing with that. GreenAntz is about making best-quality YPbPr transcoding "affordable" and "seamless" for retrogamers using CRTs/SDTVs. For people like you and me. I think that "best-quality" means I am extremely happy with it at both a data analysis and personal level (I am a data analyst, so same thing). "Affordable" means about as much as I'd pay for most decent TVs, which is maybe ~US$50. "Seamless" means once you have your VGA/15khz output device setup, you should be able to just plug in the GreenAntz and use your component TV like any other RGB TV/monitor. |
| JayBee:
--- Quote from: Zebidee on March 08, 2021, 07:55:05 pm --- --- Quote from: JayBee on March 08, 2021, 06:48:29 pm ---Thanks for stepping in, indeed your device seems a great match for my adapter! :D I'm also using a xnor sync combiner in my device, so a rgbhv to ypbpr would surely be overkill, but rgbs to ypbpr would be neat. I'm wondering tho, my adapter supports 480p+ resolutions, but if I understand it correctly your adapter can't have correct color on HDTV modes, right? --- End quote --- Thanks JayBee :) The issue is that component colour space for HDTV is different to SDTV. It will actually work with a HDTV that takes 480p in terms of sync, you will get a solid picture, but the colours will be a bit dulled and "green shifted". It has never been a solution for HDTVs that accept component inputs. In most cases you are better off using RGB/VGA/HDMI etc. anyway (there are exceptions, Wii users for example and I'm sorry for them being caught in-between techs). It comes down to them using a different mathematical formula to extract YUV from RGB for HDTV. For more info with less acronyms: https://en.wikipedia.org/wiki/YUV Yes GreenAntz accepts composite sync (RGBs) input now - and normal XNOR csync input will still benefit from the deglitching and better sync tip integration to luma. It take what it gets and gives what it gets, just a little bit better. GreenAntz has always been envisioned as a more affordable solution for retrogamers using older CRT SDTVs that maybe can't be RGB modded, but have component inputs available or can be component-modded. Component modding is often much easier too. This means a great many more TVs available for retrogaming. When I say affordable: Look, you can pay >US$100+ for a Shinybow or whatever that can do HDTV ok I think. If they are even available. GreenAntz is not competing with that. GreenAntz is about making best-quality YPbPr transcoding "affordable" and "seamless" for retrogamers using CRTs/SDTVs. For people like you and me. I think that "best-quality" means I am extremely happy with it at both a data analysis and personal level (I am a data analyst, so same thing). "Affordable" means about as much as I'd pay for most decent TVs, which is maybe ~US$50. "Seamless" means once you have your VGA/15khz output device setup, you should be able to just plug in the GreenAntz and use your component TV like any other RGB TV/monitor. --- End quote --- Thanks for the detailed explanation :) About 31kHz+ resolutions on ypbrpr, I was thinking specifically about early BVM/HDTV that had only components in for 480p and up. But I agree with you, that use case scenario is very small. I do understand the technical limitations and there isn't much we can do about it, I just wanted to make sure I understood the technical side of the transcoder ;) |
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