OSSC with LG C9/B9 and 480i 3x laced

[rickyc675]

Hi everyone, I am wondering if anyone has an OSSC hooked up to an LG C9, or any of the 2019 OLED TVs, and if so can you confirm if 480i 3x laced works with the TV? I want to use this mode for PS2 games as I dislike Bob deinterlacing and the C9 does a pretty good job deinterlacing standard 480i in my opinion.

I used to have a framemeister but sold it last year to help fund a GPU upgrade, I don’t really want to buy another as I prefer OSSC for progressive video (I had an OSSC a couple years back). I have a Dreamcast VGA and RGB N64 I want to hook up, along with the PS2 via component. I’ve seen the 3x laced works for some displays but can’t find anyone who’s tested with the C9.

Many thanks!

[Gara]

3x 480i 1440i doesn't work on my C9. I get an invalid format error. 2x and 4x work.

I wonder if it would work on a CX. The CX has support for a MiSTer 1440p mode that I can't get on my C9.

[rickyc675]

Thank you for your reply. That’s a shame it doesn’t work, but never mind, still going to grab the OSSC anyway, it will be the best solution for the N64. It looks like there have been many firmware updates since I owned it so maybe I can find settings I’m happy with.

I’m currently using a PS2 Kaico HDMI adapter (the set with the cables, not those dongles) and that seems to send a 480i image to the TV as this is what it reports in the info, I’m assuming this is just a simple passthrough. To me the image doesn’t look too bad, it certainly isn’t £450 worse than a FM that’s for sure! The C9 seems to deinterlace the image from this nicely so hopefully I can see some improvement just passing through 480i, or at least the same result, with the bonus of 2x 480p upscaling.

I would love a huge widescreen CRT for the PS2, I’ve patched almost every game I own for native 16:9, but I live in a tiny flat with no space!

[fernan1234]

PS2 Kaico HDMI adapter

Do you have a link for this adapter? I'd actually be pretty interested in an HDMI cable that simply passes through the original 480i RGB (along with audio of course) from the PS2.

edit: think I found it, I might just give it a try actually for use on a CRT with a DAC, as an alternative to my Retro Access custom DE15 coax RGB cable.

[orange808]

How many displays actually support 1440i? Is that a thing? My beamers support just about anything, but they report 720p input and display the signal incorrectly.

[Konsolkongen]

3x 480i 1440i doesn't work on my C9. I get an invalid format error. 2x and 4x work.

I wonder if it would work on a CX. The CX has support for a MiSTer 1440p mode that I can't get on my C9.

It doesn't work on the CX either. Never seen it working in person, would love to know what it looks like

[shroom2k]

I can confirm OSSC 480i x3 mode doesn't work on my CX.

[bobrocks95]

It's the only mode my B9 doesn't support I believe, I would have loved to have seen how the display handled PS2, but straight 480i passthrough looks awful.

[Gara]

1440i works on my C9 if I run my OSSC through my Extron DSC 301 HD. I'm not really sure how accurate it is. The Extron is normalizing it to 1080p. It looks alright. If I had to choose between the two I think I prefer the subtle smoothing of letting the C9 process the 480i itself. Framemeister will remain my go to.

I had to rewire the OSSC directly into my Extron to get it working. When going through my receiver and hdmi splitter chain it was artifacting and freaking out. It's super annoying to find an incompatability after all the trouble I went to finding equipment compatible with the OSSC.

I'll have to play with it more later on. I'll need to find a better way of wiring my hdmi chain. Should make an interesting comparison once things are setup.

Edit: I saw on Reddit that you're integrating an Extron DSC 301 HD in to your own setup. Be sure and share how it goes. I'm definitely curious what ends up being your preference.

[headlesshobbs]

From my understanding computer crt's do tend to work fine being that it's past the 31khz range required to operate, but what about pc lcd's?

[orange808]

I prefer 4x bob 960p with alternating scanlines on my PC CRTs. 1440i appears to shake and tremble. I can barely see the scanlines appear to travel "down" through the image when I use 960p with alternating scanlines, but it's less distracting than 1440i trembling--and it looks more like 480i on a high end consumer television to my eye.

[rickyc675]

Hi everyone, thanks for your replies.

Do you have a link for this adapter?

Yes, https://www.amazon.co.uk/HDMI-Cable-Son ... B083RY5NZH (UK) or https://www.amazon.com/HDMI-Cable-Sony- ... ast_sto_dp (USA)

It definitely does seem to be a straight DAC, no deinterlacing is performed according to my TV. It also has a switch on the device that you can choose component or RGB output.

Be sure and share how it goes. I'm definitely curious what ends up being your preference.

Yes I definitely will share my results. I'm waiting for the extron stuff to arrive in the post, should be tomorrow according to the tracking. I used to have a Framemeister, I know they handle the PS2 very well, I sold it last year though and I don't want to spend that much money again for a device that will only be for the PS2 480i content. When reserching into the 1440i I discovered the DSC 301 was a solution so went to ebay and there was a job lot containing the 301 and some other devices and cables/PSUs. I negotiated £115 shipped for the lot, hopefully can sell on the other stuff and the 301 could end up being super cheap to free as a result. I just saw another 301 listed up today without a PSU for £250 so I may have gotten lucky!

I will aim to do some comparisons with the OSSC as straight passthrough to the C9, the Kaico cable, the OSSC sending 480i to the extron and the OSSC sending 1440i. I don't have a receiver but I will be attampting to send the signal through 2 HDMI splitters so will see how that goes.

My camera skills are very lacking but I'll do my best to get good photos!

[orange808]

Okay. The DSC 301 HD accepts 1440i and applies Extron's deinterlacing to the signal. It puts something on screen.

Unfortunately, this is Extron deinterlacing. The Wii 240p Test Suite scroll test broke it immediately. Same as 480i.

Meh.

[fernan1234]

Yeah the DSC 301 is only able to output one interlaced output: 1080i. Anything else will give you the result of an interlaced/progressive conversion. Then again, even if it does 1440i -> 1080i, it's not like you would benefit on most displays that will do their own I/P conversion in the end. Only exception I can think of, and which may produce interesting results, is a CRT capable of displaying 1080i, so that the signal remains interlaced throughout.

I don't think we'll ever find something that can actually display 1440i without any processing. I guess it's just there in case a given internal or external scaler happens to give better results with it than with 960p or 480p.

[fernan1234]

Yes, https://www.amazon.co.uk/HDMI-Cable-Son ... B083RY5NZH (UK) or https://www.amazon.com/HDMI-Cable-Sony- ... ast_sto_dp (USA)

So kind of off topic, but I did get one of these to try on my BVM and it's a pretty interesting. My monitor detects it as outputting a 4:4:4 YCbCr, 8bit signal, flagged correctly for my monitor to select the ITU-R BT 601 color matrix for it. I'm assuming that 8bit color depth is correct for the PS2. On quick inspection, looks as good as my Retro Access coax cable.

As to the audio side, all I can say is that it's pretty clean, probably better than most regular cables. There is a slight hum that I can hear if I really pump up my headphone amp, and the RA coax cable outperforms the Kaiko in this regard, but that's a pretty high bar. Overall, a really good alternative to RGB cables if you have a DAC set up for your CRT.

Only bad part is the connector. Gets difficult to plug in and out, and somehow didn't plug in fully on a PS1 that I tried to test it on. Maybe these Kaiko cables should get their own topic.