OSSC (DIY video digitizer & scandoubler)

[marqs]

Indeed it was.

It's still showing 16-235 in input section. Also, the processor seems to be doing refresh rate conversion (59.83Hz->59.94Hz) - I wonder if that can be bypassed.

[Fudoh]

It's still showing 16-235 in input section.

iirc this can be manually adjusted as well.

Also, the processor seems to be doing refresh rate conversion (59.83Hz->59.94Hz) - I wonder if that can be bypassed.

unfortunately it can't.

[ZellSF]

Horizontal jitter. Also happens on a HP monitor and the DVDO VP50. I have two more adapters coming in the mail soon to definitely rule out adapters, I've already tried three different cables.

Can you manually set dot clock for VGA input on moniotor/VP50? It should be set to 1716 when using DTV-480p mode with 480p linedouble.

The monitor and TV have the setting I think you're referring to (goes by different names), which helps a lot but doesn't really get to tolerable levels. Neither actually has the option to fine tune it that specifically though.

Probably just expecting too much of a analog signal going through a 10$ converter to a device that wasn't specifically meant to handle VGA running a really low resolution (displaying the image 1:1 actually helps on the monitor, so scaling seems to amplify the effect).

480pX2 actually isn't that bad, but VGA really reduces the AR control options on my TV (16:9 or 4:3 only, no overscan option), so going by my tests so far I wouldn't recommend people buy HDMI>VGA converters hoping for some positive effect with OSSC.

Also feature request: discrete remote buttons for everything. 2x/3x switch is nice, but a dedicated button for 2x and 3x would be nicer...

I'll think about it. Remote buttons soon start to run out if all functions get a dedicated button, though

Option to skip setting up a button in config for people who don't need / have a available button for a specific command?

[cleeg]

Thanks for the link marqs, I've had a quick scan,and sort of understand; is this something that could be applied to the RGB SCART input?

[juji82]

Indeed it was.

It's still showing 16-235 in input section. Also, the processor seems to be doing refresh rate conversion (59.83Hz->59.94Hz) - I wonder if that can be bypassed.

Fudoh was right again, could change input to 0-255

[juji82]

This should be the correct one, I hope!

[Fudoh]

Here - as on most scaling processors - the video output timing can manually be adjusted to match the input timing as best as possible, but since it's no internal framelock it will never be perfect. Best way is to grab any smooth scrolling game (horizontal or vertical) and adjust the output timing to minimize any dropped or doubled frames. On DVDOs (and Lumagens) you can lock the output to the input so the input refresh rate is 100% perfect duplicated on the output.

Dropped frames are more critical than doubled frames by the way.

[RGB0b]

Is that kind of horizontal jitter or something that looks the TV can't sync properly to signal?

Here's a video. It's much easier to see in person...I'm not sure if you can even tell in this video. The top of the letters are where it's most noticable: https://youtu.be/Lfoc1u6IWqQ

[Ruprit]

My OSSC arrived. Nothing but positive impressions in the 15 minutes I've had to play with it. I was worried that the OSSC would be more difficult to use in comparison to the XRGB due to my lack of knowledge with scaling devices. Not only do I find it easy to use, but incredibly responsive. So far I've connected it to my Sega Saturn and the results are outstanding. Once I get everything situated, I'll do my best to take some photos and provide feedback across the consoles I use (Sega Saturn, PlayStation 1 + 2, Xbox 360, and the Neo-Geo MVS). Also, I'm using a PC monitor, a Dell U2715H.

[Guspaz]

I think the major things keeping me from ordering the OSSC right now (other than the fact that it hasn't hit general availability yet) is the lack of profile support, and wanting to see the MLiG coverage of it first. Both of which should be addressed in the near future

[BuckoA51]

MLIG are working on it at the moment I believe.

As for profiles, well there's not that many systems that need tweaking from the default values that I've found. Usually 2 settings at the most. Of course as the firmware gets more advanced and people start hooking up more systems, like Amiga or Atari ST that have custom modes, it would maybe be useful.

My OSSC arrived. Nothing but positive impressions in the 15 minutes I've had to play with it. I was worried that the OSSC would be more difficult to use in comparison to the XRGB due to my lack of knowledge with scaling devices. Not only do I find it easy to use, but incredibly responsive. So far I've connected it to my Sega Saturn and the results are outstanding. Once I get everything situated, I'll do my best to take some photos and provide feedback across the consoles I use (Sega Saturn, PlayStation 1 + 2, Xbox 360, and the Neo-Geo MVS). Also, I'm using a PC monitor, a Dell U2715H.

If you have the time I'd appreciate you leaving a review on my site too

[Ruprit]

If you have the time I'd appreciate you leaving a review on my site too

Definitely. I'll aim for this weekend.

[Guspaz]

MLIG are working on it at the moment I believe.

As for profiles, well there's not that many systems that need tweaking from the default values that I've found. Usually 2 settings at the most. Of course as the firmware gets more advanced and people start hooking up more systems, like Amiga or Atari ST that have custom modes, it would maybe be useful.

Isn't the SNES the one that is the most particular? It's my primary system, but I've also got a PAL GCN (running NTSC), a PSOne, and an NESRGB. Ideally I'd like to be able to just turn things on and have it work, but if that's impossible, at least profiles would minimize the setup time when I want to play something.

I'm actually also waiting on the audio mod to be available, but I figure it will be by the time general availability happens.

[RGB0b]

I'm actually also waiting on the audio mod to be available, but I figure it will be by the time general availability happens.

Is there any update on this? Is someone actually having the boards made? Sorry if I missed that info in the thread...

[BuckoA51]

Isn't the SNES the one that is the most particular?

SNES is the least compatible, but usually it either works or it doesn't, no changing of settings makes a difference.

Is there any update on this? Is someone actually having the boards made? Sorry if I missed that info in the thread...

I'm getting some made up yeah.

[bonzo.bits]

Does anyone else get evenly-spaced columns of blurry pixels with certain systems/resolutions in line-double mode? I get them with Sega Mega Drive, in certain Sega Saturn resolution modes, and with my Sega Model 1/2/3 boards. Presumably the OSSC doesn't like the horizontal resolution for some reason. These weird blurry columns aren't present in line triple mode for some reason, so there's a workaround for every system except my mid-res arcade boards (496X384).

That looks like sampling rate in linedouble mode hits close to dot clock of the source (without exactly matching it) so that several consecutive samples are taken at inoptimal time in a repeating pattern. Linetriple uses higher sampling rate so therefore the pattern is less noticeable. Video LPF should minimize the issue (turning it off makes things worse - right?), but it cannot be completely avoided unless sampling rate is modified. That will be possible with advanced timing editor, but it may reduce compatibility with some TVs.

This issue with the vertical colour dodginess and the timing editor fix mentioned by Marqs, are they specific to the OSSC? I'm having a very similar issue with Saturn through the Framemeister.

Sorry for hijacking the OSSC thread with FM talk FWIW, I only just learned of the OSSC on the weekend and now plan on ordering one when my next pay hits my bank account, cos it sounds like an amazing piece of work.

[h1ghju1ce]

Sorry for hijacking the OSSC thread with FM talk FWIW, I only just learned of the OSSC on the weekend and now plan on ordering one when my next pay hits my bank account, cos it sounds like an amazing piece of work.

I wouldnt worry about not having the funs for the OSSC just yet, *get yourself in the queue now* , they wont have a unit for you for months at this rate
I think as Matt said, hopefully before xmas
They dont charge you a £ until they have a unit to ship you

[CobraKing]

Sorry for hijacking the OSSC thread with FM talk FWIW, I only just learned of the OSSC on the weekend and now plan on ordering one when my next pay hits my bank account, cos it sounds like an amazing piece of work.

I wouldnt worry about not having the funs for the OSSC just yet, *get yourself in the queue now* , they wont have a unit for you for months at this rate
I think as Matt said, hopefully before xmas
They dont charge you a £ until they have a unit to ship you

It could quite possibly be well into 2017 if he only joined the subscription list now.

[lettuce]

So whats the easiest method to get the audio out of this device if you dont have an amp?

[deltronik]

Just got mine in after a snafu with the post office, they didnt deliver due to a postal code issue. I drove up to the post office and got lucky enough for the guy to remember the package and he went and pulled it off the shipping dock for me. They were gonna ship it back to GB!


Just hooked it up to my extron and panasonic p50s60. Flipped on the Genesis 1 and still had the grayscale gradient, so I hit OSSC button "0" once and there she was!

Perfect 480p!

I definitely didn't expect to get a solid picture without having to tinker at all. Even if it only worked for my Genesis, I'm already satisfied! Thanks Marqs! This is amazing!

I haven't messed with at at all! I'll be busy for a while now. I have genesis, dreamcast, snes, n64, PS1, PC Engine DUOR, Twin Famicom NESRGB, and DVDO iscan v2 for my S-video Atari to keep me busy testing for a while... I'll have to go grab the Master System, gamecube, Saturn and Coleco from my parent's house. I am geeking harder than I have in a while. LOL

[deltronik]

My SNES (early model with native RGB) also appears to be working perfectly in 480p with settings exactly as the OSSC shipped!


That will be my last update for now, I am just super stoked that line double mode works out of the box with no adjustments! Dreamcast worked flawlessly, as expected.

I'll give another update once I've had some time with the advanced settings, x3 mode, scanlines etc.

[BuckoA51]

Just got mine in after a snafu with the post office, they didnt deliver due to a postal code issue.

Glad you got it. When it comes to your postcode I always copy and paste what you send me, so might want to check your shipping address is correct.

I'd welcome a few reviews for these on my site guys

[BuckoA51]

Invites up to and including subscriber 126 have now gone out. If you are subscriber 126 or under and haven't had an e-mail invitation, contact me immediately. You can check your position in the queue by following these steps:-

https://www.videogameperfection.com/for ... your-spot/

Just over 50% of people who put their names down on the waiting list have actually gone ahead and bought a unit so far. That means if you're subscriber 200 or under you're in with a shot this time.

Everyone who has been e-mailed can still order, and everyone who didn't reply this time will be given a second chance next time too.

[pyrotek85]

Doh, got a ways to go for myself then. Maybe next batch, hopefully that won't be too long.

[eric90000]

I'm mid 200's I think....one can only hope

[Thomago]

I'm just shy of 200.

[cleeg]

So whats the easiest method to get the audio out of this device if you dont have an amp?

I am currently using a male to male stereo mini plug cable into my hifi's line in port. I'm getting an el cheapo mini plug to stereo RCA wire to go into my TV; from there I'll use the HDMI plus analogue combining feature on my telly. It has pretty good speakers for an LCD, but when I feel like a little more noise (Thunderforce IV anyone?) my TV is connected to my hifi via optical cable.

[deltronik]

Glad you got it. When it comes to your postcode I always copy and paste what you send me, so might want to check your shipping address is correct.

I'd welcome a few reviews for these on my site guys

It was no fault of yours! The address was clearly correct on the label, but USPS sent it to the wrong post office and they decided to mark it return to sender! My city changed names a couple years back and they still can't get it right.

I'll put up a few words once I get some more time with this baby!

[CobraKing]

Invites up to and including subscriber 126 have now gone out. If you are subscriber 126 or under and haven't had an e-mail invitation, contact me immediately. You can check your position in the queue by following these steps:-

https://www.videogameperfection.com/for ... your-spot/

Just over 50% of people who put their names down on the waiting list have actually gone ahead and bought a unit so far. That means if you're subscriber 200 or under you're in with a shot this time.

Everyone who has been e-mailed can still order, and everyone who didn't reply this time will be given a second chance next time too.

@BuckoA51, when's cutoff date for the 50% for the first 126 to pay up?

[KaBoomPow]

Is there any chance we can get the gerbers for the board? I'd like to put one together and avoid the long wait. I'd imagine that with this being an open-source project, they should be made available along with the software.