OSSC (DIY video digitizer & scandoubler)

[Gekiohsan]

Hello Marqs. I was wondering if in a future update it would be feasable to include 16 x 9 resolutions for linex4 and linex5 modes in addition to the 4x3 thats already in there. the only solution i could come up with is zooming the image in to fill the whole screen. Couldnt see if this was brought up anywhere in the earlier parts of the thread so i apologise if it was.

[Harrumph]

Has anyone been able to find an HDMI capture card that reliably accepts 3x, 4x and 5x modes? Once again, I'm sorry for the pain-in-the-ass question, but I'm trying to finalize my setup. My Epiphan DVI2USB3 freaks out in all modes and my PEXHDCAP only works reliably in 2x mode.

Maybe it doesn't really help you, but user Mythic at vgp forums has reported that the Startech USB3HDCAP can do up to 4x mode.

[RGBSource]

Has anyone been able to find an HDMI capture card that reliably accepts 3x, 4x and 5x modes? Once again, I'm sorry for the pain-in-the-ass question, but I'm trying to finalize my setup. My Epiphan DVI2USB3 freaks out in all modes and my PEXHDCAP only works reliably in 2x mode.

My Datapath Vision RGB E1 accepts pass-through (of 240p) up to 5x from the OSSC. Here are some optimized (advanced timing) captures from a JB fixed AES 3-6, and a de-doujindanced DUO-R (replaced with AV-DRIVER).

[Jademalo]

Holy crap, those shots are almost unbelievably clean! :O

[RGB0b]

Here are some optimized (advanced timing) captures from a JB fixed AES 3-6, and a de-doujindanced DUO-R (replaced with AV-DRIVER).

Great pics. LOL, "de-doujindanced"...I love that. Did you pop all the bubble wrap out of frustration? Sorry, OT...

My Datapath Vision RGB E1 accepts pass-through (of 240p) up to 5x from the OSSC.

If so, I'll buy one right now. Is it easy though? Just feed DVI in from the OSSC, hit record and that's it? I do a lot of real-time captures through OBS, so I can't have a solution that requires post-processing, I'd really like to just hit record and go.

Edit - Also, are you using Windows 10? I'm having issues with an older Datapath card on Windows 10; I can't run their software or get frame rates over 10FPS.

[fafangus]

Hi all
I have recently own a NeoGeo Aes with “armouring” all in the Inside (serial between 20k/30k, the sticker was taked off…), great piece of hardware, sharp rgb signal but…

When I use it with the OSSC (and the FM by the way), I’ve got a distorted picture in the top of the screen like that :
__
/ /
| |
| |
| |

Hooked it directly to av1, using a sync strike (or xsync) in av2, using my xselectd4…always got this annoying distortion…

Tryed to adjust ossc’s timing and sync option but nothing seems to arrange that

For now the console is away in my friend’s house (to check the motherboard), do you guys know if I have to mod the signal of the console (I have read that on some neogeo that the sync is not properly wired…)

Mant thanks !!

Hi all
So after a big search I finally get it !!
Talking with Xyga, he told me to chain one the old XRGB to the OSSC...

So testing separatly each line doubler, starting with the XRGB 1; I could get a nice picture in 15k and 31k (hooked to my JVC 15 & Eizo 31), the same with the DISPL, but I couldn't get a picture into the OSSC (no signal...), so tryng to get my hand on my XRGB 2 (witch I didn't use for months now...), tryed 15k and 31k works like a charm

So if you got problems with NG and you've got your old XRGB 2; it may help

Now my "armoured" Neo.Geo gives me a beautifull crystal clear line X5 ^-^

[Xyga]

That was a wild try, guess there's no chance to tame that AES without some sort of compromise in either resolution or lag.

[h1ghju1ce]

Hi all
I have recently own a NeoGeo Aes with “armouring” all in the Inside (serial between 20k/30k, the sticker was taked off…), great piece of hardware, sharp rgb signal but…

When I use it with the OSSC (and the FM by the way), I’ve got a distorted picture in the top of the screen like that :
__
/ /
| |
| |
| |

Hooked it directly to av1, using a sync strike (or xsync) in av2, using my xselectd4…always got this annoying distortion…

Tryed to adjust ossc’s timing and sync option but nothing seems to arrange that

For now the console is away in my friend’s house (to check the motherboard), do you guys know if I have to mod the signal of the console (I have read that on some neogeo that the sync is not properly wired…)

Mant thanks !!

Hi all
So after a big search I finally get it !!
Talking with Xyga, he told me to chain one the old XRGB to the OSSC...

So testing separatly each line doubler, starting with the XRGB 1; I could get a nice picture in 15k and 31k (hooked to my JVC 15 & Eizo 31), the same with the DISPL, but I couldn't get a picture into the OSSC (no signal...), so tryng to get my hand on my XRGB 2 (witch I didn't use for months now...), tryed 15k and 31k works like a charm

So if you got problems with NG and you've got your old XRGB 2; it may help

Now my "armoured" Neo.Geo gives me a beautifull crystal clear line X5 ^-^

The way your "diagram" of the distortion looks, is it the same as the issue the BVM-A20 has with SMS input (See this video for what I mean)

https://www.youtube.com/watch?v=SkslzaHJXzE&t=8s

this is apparently caused by the output not having "Horizontal slices in the vertical sync block"

could it be that the XRGB2 is correcting the video signal to correctly produce that part of it?

[fafangus]

Yes it could be that, the XRGB 2 got an AFC settings, so it could be that
I have to test an Extron 580xi, that's what RetroRGB says...
I already have a 203rxi...what the 580xi does that 203rxi doesn't ? AFC things...

[RGBSource]

Holy crap, those shots are almost unbelievably clean! :O

Thanks. With clean enough sources, using the optimized sampling along with the correct Horizontal sample rate, and light use of LPF the OSSC can result in an image extremely close to an all digital pipeline. I had to lower the H.samplerate to 384 (320x240 optimized) for correct sampling (as shown) on the AES. An optimal timing entry is missing from the wiki: http://junkerhq.net/xrgb/index.php?titl ... al_timings

Great pics. LOL, "de-doujindanced"...I love that. Did you pop all the bubble wrap out of frustration? Sorry, OT...

The biggest challenge was removing the black RTV (glue?) from one of the chips with a lifted leg (could have just been bridged to ground on adjacent let) and on the HuCard slot. RGB output quality was pretty noisy and not the right level. The AV-DRIVER fixed things up pretty well as you can see. The bubble wrapping around the region mod (causes issues with the TED) and the RGB amp were preserved. It doesn't look like doujindance is modding DUOs this way anymore and is having PCBs manufactured.



Some persons...

If so, I'll buy one right now. Is it easy though? Just feed DVI in from the OSSC, hit record and that's it? I do a lot of real-time captures through OBS, so I can't have a solution that requires post-processing, I'd really like to just hit record and go.

Edit - Also, are you using Windows 10? I'm having issues with an older Datapath card on Windows 10; I can't run their software or get frame rates over 10FPS.

They're fairly inexpensive from one current eBay listing. Those captures were made on a Core i7 930/X58 chipset based machine running.... Win7SP1 32-bit. I have a Win7SP1 64-bit OS drive in the same box and don't recall if x64 was an issue or not. I've only used the Vision capture software included with the latest driver from Datapath, so can't comment on OBS streaming.

[fafangus]

Hey guys what do you use to capture lineX5 ?

[Jademalo]

Thanks. With clean enough sources, using the optimized sampling along with the correct Horizontal sample rate, and light use of LPF the OSSC can result in an image extremely close to an all digital pipeline. I had to lower the H.samplerate to 384 (320x240 optimized) for correct sampling (as shown) on the AES. An optimal timing entry is missing from the wiki: http://junkerhq.net/xrgb/index.php?titl ... al_timings

Oh wow, I hadn't seen that optimal timings page. That's going to be extremely useful, thanks!

[NJRoadfan]

Hey guys what do you use to capture lineX5 ?

Epiphan DVI2PCIe PCIe 1x card works with Line5x. Tested in 1920x1080 and 1600x1200 modes.

Has anyone been able to find an HDMI capture card that reliably accepts 3x, 4x and 5x modes? Once again, I'm sorry for the pain-in-the-ass question, but I'm trying to finalize my setup. My Epiphan DVI2USB3 freaks out in all modes and my PEXHDCAP only works reliably in 2x mode.

I'm beginning to suspect the USB variant uses a different capture chip from the PCIe card. I haven't had any issues capturing with the various OSSC modes and the PCIe card. The only other HDMI capture card I have is an AVerMedia HD DVR C027, which only supports Line2x mode.

[fafangus]

I reach to capture 1080p out of the ossc with my xcapture1, trough the C2, the only problem I've got is with the C2 in x5 mode the neogeo gives me some kind of artifact, like parasites on grey colours, others systems are good

[zeruel85]

Hey guys,

I have an Asus VX279H display, when I use 480p pass-through or 240p lineX4 the images are in widescreen, even if I set 4:3 in the OSSC settings.

I cannot force 4:3 from the monitor, there's not such an option in the menu.

Is there a way to resolve this issue and play 4:3 with those two resolutions?

Thanks.

[Jademalo]

I have that monitor exactly, and I cannot figure out how to sort it.
The monitor has a habit of scaling any image it gets to the full resolution, so it tends to wreck 4:3 images.

The settings are pretty awful and limited, and I've yet to find an option to change that either. Unfortunately, I think you're out of luck.


I do have to ask though - How did you get line4x working? Mine will only accept 2x and 3x.

[fafangus]

So here is my vid caps of my new Neo.Geo "armoured" :
https://www.youtube.com/watch?v=-7UJTUaxelM&t

Xcapture 1 can't handle the line X5 so I do it Line X4 > C2 > 1080p...

Some pics of the beast :



I'll go trough XRGB2 15K> RGBS Crosspoint (H&V mixed) > XselectD4 > OSSC AV2
This way I've got a stable signal...waiting for the Extron 580xi to see what I could combine

[eric90000]

Does anyone happen to know if all the line modes on the OSSC work with a Samsung KS7000 4K TV? I heard it's a pretty great 2016 TV for gaming so I'm considering buying one....

[zeruel85]

I have that monitor exactly, and I cannot figure out how to sort it.
The monitor has a habit of scaling any image it gets to the full resolution, so it tends to wreck 4:3 images.

The settings are pretty awful and limited, and I've yet to find an option to change that either. Unfortunately, I think you're out of luck.


I do have to ask though - How did you get line4x working? Mine will only accept 2x and 3x.

240p lineX4 works without any particular settings with my setup, though I hate the widescreen mode, so I usually go with 240p lineX3 4:3.

[Blair]

semi-followup to these pictures.

Spoiler

Nintendo Wii+OSSC+HD3000 (soft preset v1), OSSC 480p mode: Auto, scanlines: 100%

Game: Streets of Rage 2: Syndicate Wars(2012) via retroarch wii)

(mostly a quick comparison of what the LN40 looks like just scaling the OSSC on its own vs using another image processor with some funky settings that I thought looked kinda neat)


OSSC 320x224p 2x, mode: Auto.

Game: waku waku 7 (1996)


Samsung LN40+OSSC, no scanlines


Samsung LN40+OSSC+HD3000 (soft preset v2), no scanlines


Samsung LN40+OSSC, scanlines: 100%


Samsung LN40+OSSC+HD3000 (soft preset v2), scanlines: 100%

[Galgomite]

Has anyone tried running linedoubled 480i (which is now 480p) into a VP30 and outputting 240p? Could anyone comment on how this would look?

[Sirotaca]

Anyone have any experience with these things?
http://www.ebay.com/itm/Composite-RCA-S ... 0431809472

If it doesn't add a ton of lag or something, seems like it might be useful for getting composite-only consoles like the NES/Famicom into the OSSC without mods.

[CobraKing]

^^
At that price it almost seem worthwhile to pay an installer to have your NES/Famicom RGB modded.

[Sirotaca]

^^
At that price it almost seem worthwhile to pay an installer to have your NES/Famicom RGB modded.

Well, it's less about cost and more about the NESRGB being more invasive than I prefer. Basically me being a purist in weird ways.

Besides, the NES is just one example. The Atari 2600 and C64, among others, also can't do RGB in a straightforward way. For those kinds of sources it would be useful to have a simple box that can decode composite/YC to a format the OSSC understands. Something like the Extron CD 400, but more available/affordable.

[Guspaz]

There are install methods you can do for the NESRGB that don't require cutting plastic, if you really want to. Paying $80 to get composite from an NES into an OSSC is a huge waste of money.

[CobraKing]

^^
At that price it almost seem worthwhile to pay an installer to have your NES/Famicom RGB modded.

Well, it's less about cost and more about the NESRGB being more invasive than I prefer. Basically me being a purist in weird ways.

Besides, the NES is just one example. The Atari 2600 and C64, among others, also can't do RGB in a straightforward way. For those kinds of sources it would be useful to have a simple box that can decode composite/YC to a format the OSSC understands. Something like the Extron CD 400, but more available/affordable.

I think with original hardware and original cartridges in 2017 you'd already be as pure as you can get - getting RGB would take things to the next level. Plus as @Guspaz said, sending a composite signal to the OSSC kinda defeats the purpose of the device.

[BuckoA51]

Anyone have any experience with these things?
http://www.ebay.com/itm/Composite-RCA-S ... 0431809472

If it doesn't add a ton of lag or something, seems like it might be useful for getting composite-only consoles like the NES/Famicom into the OSSC without mods.

I reviewed it - https://www.videogameperfection.com/201 ... er-review/

TL:DR - It's crap sadly, compatibility totally hit and miss.

[Sirotaca]

There are install methods you can do for the NESRGB that don't require cutting plastic, if you really want to. Paying $80 to get composite from an NES into an OSSC is a huge waste of money.

Cutting plastic isn't the problem (I have an AV Famicom so I wouldn't need to cut plastic anyway), but just how the NESRGB works. It feels a bit too "artificial" for my taste. I realize it's silly, and I may well relent and do it anyway at some point. But for now I'm investigating what other options are available. Besides, as I mentioned, there are more consoles than just the NES that have similar issues. I don't think anyone has made an NESRGB-style mod for the C64 yet, for example.

Plus as @Guspaz said, sending a composite signal to the OSSC kinda defeats the purpose of the device.

It doesn't defeat the purpose if your TV doesn't recognize 240p without the use of a scaler. Plus, I have plenty of other consoles that do output RGB and would work great with the OSSC, so I'd quite like to get one anyway. It would just be nice if I could route everything through the OSSC and ditch my Framemeister.

I reviewed it - https://www.videogameperfection.com/201 ... er-review/

TL:DR - It's crap sadly, compatibility totally hit and miss.

That's unfortunate. Oh well.

[Guspaz]

The C64 already supports s-video, and the Framemeister can take that. I've not personally seen the C64's s-video output, but generally there isn't a huge difference between s-video and RGB.

The artificial part with the NES, if anything, would be using it on an HDTV in the first place instead of a CRT. If you're going to use a CRT, then sure, composite video has an authentic feel to it (although many games were intended for the Famicom which was RF-only). But as soon as you're talking about using it via a scaler on a modern HDTV, composite isn't going to look anything at all like it did on a CRT, so you might as well use a signal that will display something decent.

RGB on an HDTV is going to be a closer experience to composite on a CRT than composite on an HDTV will.

[Sirotaca]

The C64 already supports s-video, and the Framemeister can take that.

The Framemeister can take composite as well. The point is that the OSSC can't take either composite or S-video, and I'm trying to figure out if there's a way to not need the Framemeister anymore. So far I haven't found one, so I'll just have to keep it around for the time being.

The artificial part with the NES, if anything, would be using it on an HDTV in the first place instead of a CRT. If you're going to use a CRT, then sure, composite video has an authentic feel to it (although many games were intended for the Famicom which was RF-only). But as soon as you're talking about using it via a scaler on a modern HDTV, composite isn't going to look anything at all like it did on a CRT, so you might as well use a signal that will display something decent.

I don't disagree, and I love razor-sharp RGB pixels from systems that can output them with no/minimal modification. But the NESRGB is such a drastic change to the hardware that it just doesn't sit quite right with me. Don't get me wrong, I think Tim did a brilliant job designing the NESRGB and hope he sells a ton of them. I'm just not sure yet if it's a mod I personally want to do to my own Famicom.