OSSC (DIY video digitizer & scandoubler)

[nullifer]

Hello, first post on shmups

Man I've been messing with the scanline options for the past 6 months since i got my OSSC and just can't make up my mind on what i like with my ps1 and snes lol.
You guys mind posting your favorite values and some images? maybe it will help me decide what I would like to go with

thanks

[marqs]

Firmware 0.84 released:

* Added 384x240 optimized mode
* Fixed audio infoframe content to comply with HDMI spec
* Improved 400p support
* Added default HDMI VIC compatibility option
* Remote hotkey and display improvements
** Enabled quick loading of profiles 10+
** Print profile quickload status
** Enabled sampling phase adjustment while in menus
* Added "Panasonic hack" for improving line count tolerance with line2x (certain Panasonic TVs only)
* HDMI AVI Infoframe VIC assigned for passthru modes (improved compatibility with Denon AVRs etc.)
* Added compatibility option for AV3 to use AV1 RGB and audio (enables Taito F3 AV1 connection with a small HW mod)
* Initconfig and profile versions made independent of fw version
* H. samplerate fine-tuning made more intuitive

[MysticSynergy]

Firmware 0.84 released:

* Added 384x240 optimized mode
* Fixed audio infoframe content to comply with HDMI spec
* Improved 400p support
* Added default HDMI VIC compatibility option
* Remote hotkey and display improvements
** Enabled quick loading of profiles 10+
** Print profile quickload status
** Enabled sampling phase adjustment while in menus
* Added "Panasonic hack" for improving line count tolerance with line2x (certain Panasonic TVs only)
* HDMI AVI Infoframe VIC assigned for passthru modes (improved compatibility with Denon AVRs etc.)
* Added compatibility option for AV3 to use AV1 RGB and audio (enables Taito F3 AV1 connection with a small HW mod)
* Initconfig and profile versions made independent of fw version
* H. samplerate fine-tuning made more intuitive

Wow! While most of this is way over my head, thank you SO much Marqs for your continued support and hard work on the OSSC. I become excited whenever I see a new firmware update

[Xyga]

Congrats!

No luck for 1/2 the vertical scanlines in x5 ?

[Gunstar]

Wow! While most of this is way over my head, thank you SO much Marqs for your continued support and hard work on the OSSC. I become excited whenever I see a new firmware update

Haha, same!

Thanks for the continued refinement of such an incredible piece of hardware, Marqs.

[H6rdc0re]

Firmware 0.84 released:

* Added 384x240 optimized mode
* Fixed audio infoframe content to comply with HDMI spec
* Improved 400p support
* Added default HDMI VIC compatibility option
* Remote hotkey and display improvements
** Enabled quick loading of profiles 10+
** Print profile quickload status
** Enabled sampling phase adjustment while in menus
* Added "Panasonic hack" for improving line count tolerance with line2x (certain Panasonic TVs only)
* HDMI AVI Infoframe VIC assigned for passthru modes (improved compatibility with Denon AVRs etc.)
* Added compatibility option for AV3 to use AV1 RGB and audio (enables Taito F3 AV1 connection with a small HW mod)
* Initconfig and profile versions made independent of fw version
* H. samplerate fine-tuning made more intuitive

The added CPS games resolution is greatly appreciated.

[SavagePencil]

How do you adjust sampling phase? Is it mapped to the remote automatically or do I have to re-do all my remote settings?

[Harrumph]

Sampling phase was moved to advanced timing tweaker in last firmware.

[xterc]

Where can I find out more about the Taito F3 mod?

[Konsolkongen]

Could a simple way to switch between the optimized resolution be added? Like a dedicated button > Generic 4:3 > 320x240 > 254x240 > 384x240 >...

[Dochartaigh]

Firmware 0.84 released:
** Enabled quick loading of profiles 10+

Nice! What button on the remote lets you do this? I saw on the wiki there's now a "PROFILE_LOAD" button but the diagram doesn't show which one it is (unless I'm blind

And do you hit that PROFILE_LOAD + a number and that's it? Have to hit enter/select after or anything? And it says "Press [PROFILE_LOAD] again to enable selection of profiles 10 and higher", so you hit that button twice + a number (where 1 would be 11, 2=12, 3=13, etc.) - then maybe enter afterwards?

[marqs]

Where can I find out more about the Taito F3 mod?

http://junkerhq.net/xrgb/index.php?titl ... V1_RGB_mod

[Gara]

It's very cool to see that Denon fix make it in to the official firmware. It fixes 480i pass thru when running your ossc through a Denon receiver like the 3400h. Thank you very much

[marqs]

It's very cool to see that Denon fix make it in to the official firmware. It fixes 480i pass thru when running your ossc through a Denon receiver like the 3400h. Thank you very much

I'd also hope the information finds its way to Denon engineers so that they could fix their AVR HDMI mode detection logic (if possible with the relevant IC).

[nmalinoski]

It's very cool to see that Denon fix make it in to the official firmware. It fixes 480i pass thru when running your ossc through a Denon receiver like the 3400h. Thank you very much

The test firmware with the VIC changes also fixed 480i passthrough with my Onkyo TX-NR555 AVR.

[BuckoA51]

576i pass through (e.g from Amiga) also works now too.

[xterc]

Where can I find out more about the Taito F3 mod?

http://junkerhq.net/xrgb/index.php?titl ... V1_RGB_mod

Thank you!

[mario64]

It's very cool to see that Denon fix make it in to the official firmware. It fixes 480i pass thru when running your ossc through a Denon receiver like the 3400h. Thank you very much

Agreed

[maxtherabbit]

@marqs

the option to use AV3 as a sync source with LPF'd RGB is really cool, would it be much trouble to extend that to AV2 as well?

i.e. be able to use coax RCA cables for RGB going to AV2 and feed sync to the VGA port?

you could keep it to a single config option, just have 3 choices (AV1, AV2, off)

[SavagePencil]

Sampling phase was moved to advanced timing tweaker in last firmware.

Ah, but not a direct input on the remote?

[Harrumph]

Hmm right, I forgot there was direct button on the remote, I normally just go into the menu.

But this item in the list
** Enabled sampling phase adjustment while in menus
implies that it should work using the remote shortcut though.

The rest of your remote buttons work fine?

[nmalinoski]

@marqs

the option to use AV3 as a sync source with LPF'd RGB is really cool, would it be much trouble to extend that to AV2 as well?

i.e. be able to use coax RCA cables for RGB going to AV2 and feed sync to the VGA port?

you could keep it to a single config option, just have 3 choices (AV1, AV2, off)

I would think this would make more sense, because you're likely coming from a DE-15 port, and DE-15 to BNC and BNC to RCA adapters are dirt cheap compared to anything SCART.

[fernan1234]

Would it work to feed sync-on-green RGB into AV2 to avoid having to feed sync into AV3, and still benefit from the LPF? A lot of cheap Extron boxes can convert RGBS to RGsB.

[nmalinoski]

Would it work to feed sync-on-green RGB into AV2 to avoid having to feed sync into AV3, and still benefit from the LPF? A lot of cheap Extron boxes can convert RGBS to RGsB.

It would be a viable solution. The way I see it, the cost of an RGB interface and cabling (RCA to BNC cable(s) or RCA to RCA component cable plus RCA to BNC adapters) would be comparable to a properly-attenuating SCART cable, and cheaper than an RGB interface, BNC to SCART adapter, and an inline sync attenuator.

The downside is if you have mixed RGB and YPbPr sources, because occupying AV2 with RGB means that you'll need to manually switch between YPbPr and RGsB (switching cables and/or switching input on the OSSC); so, if you want to avoid that, the next-best option for YPbPr is AV1 (you'd encounter the same problems you're trying to avoid for RGB if you use AV3), which means you'll need some kind of relatively-pricey SCART adapter; and, if you're buying a SCART adapter anyway, you might as well keep using AV1 for RGB (Could still use an Extron interface to send all your RGsB, RGBS, and RGBHV sources to AV1) and AV2 for YPbPr.

[maxtherabbit]

Would it work to feed sync-on-green RGB into AV2 to avoid having to feed sync into AV3, and still benefit from the LPF? A lot of cheap Extron boxes can convert RGBS to RGsB.

sure that would work, but since he's already got the framework in place it seems like adding AV2 as an option should be trivial and would benefit certain setups

[strayan]

Can the OSSC scale by a factor of 1.25?

[H6rdc0re]

Can the OSSC scale by a factor of 1.25?

The OSSC works by line doubling.

[maxtherabbit]

hmmm changing from official release .83 to .84 my N64 profile is now showing bizarre green pixel fringes, nothing changed in my hardware or profile other than adjusting the sample rate tweak setting to match the new system

I'm thinking my OSSC doesn't like the new fitter seed?

[Sirotaca]

I think I might be seeing the same thing. It's proving tricky to pin down exactly what situations it occurs in, but it affects multiple consoles and doesn't happen on 0.83 with the same settings.

Spoiler

Notice the weird bright pixels in the morphing ball, and there's a spurious pixel in the pillar below as well.

[H6rdc0re]

Would running line 5x through an CRT monitor @1600x1200p look any good? I want to split the HDMI signal to both my LG OLED 55C6V and an Iiyama Vision Master Pro 454.