OSSC (DIY video digitizer & scandoubler)

[noko_bombette]

Which PSU are you using with your OSSC?

The one from videogameperfection, of course.

That's the same kind of noise I'm used to from my old Framemeister setup. Both my US-SNES and my Gamecube (connected via the DOL-013 Nintendo Gamecube RGB cable) where affected, but only if I passed on using a Sync Strike.
So I'm concluding this is a sync-related problem.

The mini-DIN to SCART adapter to the Framemeister I use is the one with sync cleaner from retrogamingcables.

[paulb_nl]

I've tested two different cables with the SNES Mini. One came with the modded console and the other one is the PAL RGB cable from retrogamingcables. The only difference is that the second one shows a darker image but noise is still there.

The diagonal lines looks like you are using composite video as sync with a PAL signal. You should at least use Luma as sync. Does it go away if you force your SNES mini to 60hz?

[Xyga]

Have I said how the Saturn looks fucking awesome with the OSSC on linetriple ?
For instance I've Spent three hours playing RS, I think like that it's even more pleasant-looking than the 360 port overall.

[BuckoA51]

You're right it's pretty damn awesome, shame bout the 480i title screen causing issues, though it's tolerable.

Do you find a tiny bit of the picture is lost from the right hand side of the screen on some games?

This should hopefully be fixed in a future OSSC firmware though.

[Das Muel]

Have I said how the Saturn looks fucking awesome with the OSSC on linetriple ?
For instance I've Spent three hours playing RS, I think like that it's even more pleasant-looking than the 360 port overall.

It does look really good. Do the scanlines seem too thin to you though?

[Xyga]

Do you find a tiny bit of the picture is lost from the right hand side of the screen on some games?
This should hopefully be fixed in a future OSSC firmware though.

Oops I haven't paid enough attention with the Sat.
But I've seen it happen with the MD2 playing TFIII (pal switched to '60' and x3)

It does look really good. Do the scanlines seem too thin to you though?

I don't use them !
With vertical games in landscape on LCDs they're often more in the way than they are on CRTs (the jitter is more pronounced) and the LCD's blurring smoothens part of the blockyness anyway so you can sort off take advantage of it as log as you don't abuse filters.

But maybe you were thinking of the vertical scanlines setting ? In this case of course there's a problem as there's twice the required amount showing (many thin lines).

[Das Muel]

Here's what I'm getting with linetriple on my pc crt:



And in linedouble:

[BazookaBen]

Here's what I'm getting with linetriple on my pc crt:
...
And in linedouble

Awesome pics. They both look good but linedouble looks like it has too much empty space. It even makes all the pixels look rectangular instead of square

Given what I know from play 480p console games on my PC CRT's, that will probably give you poor overall brightness. But it seems like you're ok with it. Can't wait to try it myself in one day.

[SGGG2]

I got it today, cant wait to test it tonight.
I will also partner it with the optoma hd3000.

Have you tested with the Optoma yet?

[Xyga]

@ Das Muel: Looks kind of normal to me.
Maybe if you could take shots from a bit further away so we can at least make out what's the object/sprite photographed, it would be easier to judge.

[Thamiel]

I got it today, cant wait to test it tonight.
I will also partner it with the optoma hd3000.

Have you tested with the Optoma yet?

Interested in this combo too, particularly with an MVS. My Optoma dosn't like my CMVS at all.

Sent from my C6603 using Tapatalk

[Das Muel]

Zoom in a bit and ignore the difference in saturation. Double looks best to my eye.

Double:



Triple:

[BazookaBen]

I'd have to see a sprite-based game to really judge. Scanlines aren't that important to me for 3D games.

[NormalFish]

Doesn't this make sense? I might be missing something obvious, but line triple mode = 3x, so there's no way to have a 1:1 ratio with color and black lines.

[BazookaBen]

Doesn't this make sense? I might be missing something obvious, but line triple mode = 3x, so there's no way to have a 1:1 ratio with color and black lines.

On a PC CRT, line triple (960x720) is closer to 1:1 than 480p, because PC CRT's naturally produce scanlines at 480p. So in the end, with 480p, you basically have three black lines for every color line. Look at his close-up shots, pixels look rectangular.

EDIT: I think I read something about the OSSC supporting line-double for 480p sources? Is that still true?

[kardus]

Is there any way to see where we are on the waiting list or anything to order? I think I remember signing up for something quite a while ago, but not sure if I will see the OSSC any time soon.

Is there any chance there would be any hardware revisions if I were to wait later in the year?

[ApolloBoy]

Is there any way to see where we are on the waiting list or anything to order? I think I remember signing up for something quite a while ago, but not sure if I will see the OSSC any time soon.

Is there any chance there would be any hardware revisions if I were to wait later in the year?

I think there was something said in this thread but you'd have to wade through the inane technical crap (which honestly should be its own thread) to find it.

[kardus]

Is there any way to see where we are on the waiting list or anything to order? I think I remember signing up for something quite a while ago, but not sure if I will see the OSSC any time soon.

Is there any chance there would be any hardware revisions if I were to wait later in the year?

I think there was something said in this thread but you'd have to wade through the inane technical crap (which honestly should be its own thread) to find it.

Was it something related to digital audio output?

[NormalFish]

On a PC CRT, line triple (960x720) is closer to 1:1 than 480p, because PC CRT's naturally produce scanlines at 480p. So in the end, with 480p, you basically have three black lines for every color line. Look at his close-up shots, pixels look rectangular.

EDIT: I think I read something about the OSSC supporting line-double for 480p sources? Is that still true?

I think I see what you're referring to. My eyes are tired at the moment so I'm not sure I trust them lol.

I asked about 480p screenshots recently and Fudoh responded saying the OSSC just passes through such sources, so I don't think there's a line-doubling feature. I may have misinterpreted, though. I thought I had remember similarly so maybe it was discussed but not implemented.

[ApolloBoy]

Is there any way to see where we are on the waiting list or anything to order? I think I remember signing up for something quite a while ago, but not sure if I will see the OSSC any time soon.

Is there any chance there would be any hardware revisions if I were to wait later in the year?

I think there was something said in this thread but you'd have to wade through the inane technical crap (which honestly should be its own thread) to find it.

Was it something related to digital audio output?

Well what I meant is that there's a ton of boring technical discussions in this thread and it's such a slog to actually find anything useful in this thread regarding release dates and whatnot.

Part of the reason why I don't visit here as much.

[gyre]

Apologies if this has been asked before, but how does the color space conversion work? I'm curious whether someone has tried color calibrating the SD input on a Rec 601 monitor and confirmed that the output is still calibrated on a Rec 709 HDTV.

[marqs]

There is some noise as diagonal lines (more visible in the big green leaf) when connecting my SNES Mini to the OSSC. I've added a XRGB-Mini capture to compare.


Playing with settings seem to have no effect over that noise.
EDIT: changed picture

To me that look interference from either PSU or composite video signal.

Hi all,

I'm very interested in using the OSSC with my Super Famicom on a PC CRT monitor. I see there have been some issues with the SNES and OSSC on some TVs and just wanted to ask if there are any known issues with setup described above. I would be grateful for any advice cheers.

Signal boosting this as I might be interested in a similar setup. Very annoying to see good questions like this get lost under all the ridiculous technobabble.

I doubt there are issues with CRTs, but somebody with a VGA converter can confirm that.

Any chance for dedicated remote inputs for switching between linedouble and linetriple?

I've been planning to utilize remote control keys more efficiently, including controls for mask adjusment, position (once it gets fw support) and then hotkeys to toggle options like linetriple. All input modes will also be selectable directly (keys 0-9) in the next firmware which will be available in 1-2 weeks.

I asked about 480p screenshots recently and Fudoh responded saying the OSSC just passes through such sources, so I don't think there's a line-doubling feature. I may have misinterpreted, though. I thought I had remember similarly so maybe it was discussed but not implemented.

It can be done, so expect a "480p/576p lineX2" feature sometime in the future.

[borti4938]

There is some noise as diagonal lines (more visible in the big green leaf) when connecting my SNES Mini to the OSSC. I've added a XRGB-Mini capture to compare.
(image removed for quote, here)

Playing with settings seem to have no effect over that noise.
EDIT: changed picture

To me that look interference from either PSU or composite video signal.

For me it looks like that the X-RGB Mini filters the image with a quite low pass band by comparing the shadow edges on the leaves.

[Das Muel]

Hi all,

I'm very interested in using the OSSC with my Super Famicom on a PC CRT monitor. I see there have been some issues with the SNES and OSSC on some TVs and just wanted to ask if there are any known issues with setup described above. I would be grateful for any advice cheers.

Signal boosting this as I might be interested in a similar setup. Very annoying to see good questions like this get lost under all the ridiculous technobabble.

I doubt there are issues with CRTs, but somebody with a VGA converter can confirm that.

I'd test it myself but I don't have a SNES. I'm sure there won't be any issues unique to a CRT though - in fact my CRT is quite a bit less fussy than my plasma/LCDs. You'll have to get a solid HDMI/VGA converter obviously.

[Pasky]

Is this actual DIY or are people just selling kits? I can't find a bill of materials on the github or any sort of pcb design files anywhere, just the fpga source.

Is there a pcb file and BOM available anywhere? Stuff like this should really be on the first post...

[Das Muel]

I asked about 480p screenshots recently and Fudoh responded saying the OSSC just passes through such sources, so I don't think there's a line-doubling feature. I may have misinterpreted, though. I thought I had remember similarly so maybe it was discussed but not implemented.

It can be done, so expect a "480p/576p lineX2" feature sometime in the future.

Cool. Can't wait for that. Is there any possibility of linetripling 384p? (I realise it's hardly top of people's lists, but my PC CRT at least can get up to 1152p).

[noko_bombette]

I've tested two different cables with the SNES Mini. One came with the modded console and the other one is the PAL RGB cable from retrogamingcables. The only difference is that the second one shows a darker image but noise is still there.

The diagonal lines looks like you are using composite video as sync with a PAL signal. You should at least use Luma as sync. Does it go away if you force your SNES mini to 60hz?

If I switch to 60 Hz, diagonal lines are less noticeable, but they are still there.
I think the cable from retrogamingcables is using sync on Luma.

To me that look interference from either PSU or composite video signal.

I'm using the PSU from videogameperfection. I have no other PSU to test.

What would be a possible solution regarding the cables being used?

I agree with some people here about creating separate threads to avoid this thread growing so much.
Maybe:
* Current thread for information about the hardware, sales and availability
* A separate thread for OSSC technical issues and testing

[Shuco13]

What would be a possible solution regarding the cables being used?

Can you test this on another TV/scaler? If it's not present there then your OSSC has most likely got a SYNC issue. If it's there aswell the SYNC signal in your connection might be grounded incorrectly.

[Eretro86]

Thanks for your replies Marqs and Das Muel, sounds promising! From what I've understood the issues with the SNES have been due to some Flat panel TVs being picky. Would still be great to hear from someone who has hooked their SNES and OSSC upto a PC CRT Monitor. Before I get too excited about the prospect of running groovymame, Xbox 360 and the Super Famicom all on my PC CRT!

[xadox]

@borti4938 was so kind to lend me his OSSC.
Somehow my Panasonic GW10 plasma seems to be not accepting the output.
The output is jumping around the screen:

https://vimeo.com/169224111

Tried linetripled and linedoubled mode on NES and SNES.
Also the various Linetriple modes.