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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sat Jul 15, 2017 9:49 am 



Joined: 24 Mar 2005
Posts: 416
ZellSF wrote:
BuckoA51 wrote:
One problem with splitters though adding them to the chain usually adds at least an extra couple seconds to re-sync time, so if you're trying to play games with 240p/480i transitions, splitters make those transitions take even longer, in my experience anyway.

Both the cheap China HDMI splitters I have manages to sync in less than a second, total. Would be pretty good for playing 240p>480i games if it weren't for the fact that the VP50 displays a ugly blue screen when the signal is lost for that second.


Didn't you eliminate the dropouts by unlocking the framerate on your VP50? :) Or am I mistaken?


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sat Jul 15, 2017 11:53 pm 



Joined: 17 Jan 2017
Posts: 26
Would it be possible to swap the D-Sub input to do output instead? Maybe it would be possible to connect a CRT monitor this way and being able to use light guns. Would it be possible to convert a 15kHz input to a 31kHz output and still use light guns? Also with the BVM/PVM drought we would be able to game on CRT monitors instead. Perhaps not as great but still much better than consumer CRTs. You could still force the artificial scanlines through the OSSC itself.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 16, 2017 4:43 am 


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Joined: 11 May 2015
Posts: 500
Location: America
H6rdc0re wrote:
Would it be possible to swap the D-Sub input to do output instead? Maybe it would be possible to connect a CRT monitor this way and being able to use light guns. Would it be possible to convert a 15kHz input to a 31kHz output and still use light guns? Also with the BVM/PVM drought we would be able to game on CRT monitors instead. Perhaps not as great but still much better than consumer CRTs. You could still force the artificial scanlines through the OSSC itself.


it's not really necessary for the OSSC to output analog video. a good amount of digital to analog converters are available for reasonable prices ($15 - $25 for a decent one) check my spoiler below.

Spoiler: show
Blair wrote:
in the meantime here are some screenshots of the OSSC on a Sony e400 CRT, I wanted to show how nice OSSC works with both 2-D graphics and 3-D graphics. (I think it looks pretty awesome, the colors are stunning).

[Sega Saturn+240p line double mode+scanlines 100%]

Image

Image

Image


[Original Xbox+480p Component to RGB via OSSC]

Image

Image

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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 16, 2017 6:20 pm 


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Joined: 28 Jan 2012
Posts: 777
Location: San Jose, CA
H6rdc0re wrote:
Would it be possible to convert a 15kHz input to a 31kHz output and still use light guns?

Light guns do not work on a 31 kHz display, even on a CRT.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 16, 2017 6:21 pm 


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Joined: 06 Mar 2006
Posts: 10513
Location: Germany
Quote:
Light guns do not work on a 31 kHz display, even on a CRT.

The Dreamcast one does work on both 15 and 31khz CRT displays, doesn't it ?


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 16, 2017 6:22 pm 


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Location: San Jose, CA
Fudoh wrote:
Quote:
Light guns do not work on a 31 kHz display, even on a CRT.

The Dreamcast one does work on both 15 and 31khz CRT displays, doesn't it ?

That's right, forgot about that one. It's the only exception AFAIK though.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 16, 2017 6:25 pm 


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Joined: 06 Mar 2006
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Location: Germany
What about the NES one ? If you can essentially point it at a light bulb (in Duck Hunt) instead on the display, wouldn't it work on a 31khz as well as on a 15khz one ? But you're right about the rest of course.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 16, 2017 8:43 pm 


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Joined: 06 Oct 2015
Posts: 1853
Location: Montréal, Canada
You can't point the zapper at a lightbulb for duck hunt, since it has specific protection against this: it shows a fully black frame, then a white box around the duck on a separate frame, and it is the transition from black to white that it detects. If you just point it at a lightbulb, there is no transition.

I would think that Duck Hunt should work fine on a 31 kHz display if the overall latency is low enough.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 16, 2017 9:34 pm 


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Location: Germany
Quote:
You can't point the zapper at a lightbulb for duck hunt, since it has specific protection against this:

I remember it working. A quick google search says "Early models of the NES Zapper gun could be tricked into thinking the target was always hit by simply pointing the gun at a bright light source and pulling the trigger.", but I have no idea when it might have changed.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Mon Jul 17, 2017 8:55 pm 



Joined: 19 Aug 2016
Posts: 11
I keep forgetting that this is the OSSC thread. Would it be possible to change the name of this topic to something like "OSSC: Open Source Scan Converter" similar to the Framemeister thread?


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Tue Jul 18, 2017 5:38 pm 



Joined: 24 Mar 2005
Posts: 416
When should we expect to receive the OSSC units from the reserve list?

I imagine 90 day lead time was for everyone who wasn't on the reserve list?


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Wed Jul 19, 2017 12:21 am 



Joined: 09 Apr 2012
Posts: 1960
zak wrote:
ZellSF wrote:
BuckoA51 wrote:
One problem with splitters though adding them to the chain usually adds at least an extra couple seconds to re-sync time, so if you're trying to play games with 240p/480i transitions, splitters make those transitions take even longer, in my experience anyway.

Both the cheap China HDMI splitters I have manages to sync in less than a second, total. Would be pretty good for playing 240p>480i games if it weren't for the fact that the VP50 displays a ugly blue screen when the signal is lost for that second.


Didn't you eliminate the dropouts by unlocking the framerate on your VP50? :) Or am I mistaken?

No, by a combination of unlocking the framerate on the VP50 and using line2x for both 240p and 480i. It's a fairly substantial image quality hit you only want to be taking for games that switch modes often.

For most games I have the OSSC set to 480 passthrough and 240p line5x. There I get dropouts of a second of blue screen.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Wed Jul 19, 2017 8:19 am 


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Joined: 11 May 2015
Posts: 500
Location: America
LK4O4 wrote:
I keep forgetting that this is the OSSC thread. Would it be possible to change the name of this topic to something like "OSSC: Open Source Scan Converter" similar to the Framemeister thread?


As far as I know that would be up to Marqs as he's the one that created the thread originally so he would have to go into the post editing options and change the thread title. him and BuckoA51 have also suggested that users post OSSC related questions in the official OSSC forums at
https://www.videogameperfection.com/forums/forum/ossc/


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Wed Jul 19, 2017 9:38 am 



Joined: 24 Mar 2005
Posts: 416
ZellSF wrote:

Didn't you eliminate the dropouts by unlocking the framerate on your VP50? :) Or am I mistaken?
No, by a combination of unlocking the framerate on the VP50 and using line2x for both 240p and 480i. It's a fairly substantial image quality hit you only want to be taking for games that switch modes often.

For most games I have the OSSC set to 480 passthrough and 240p line5x. There I get dropouts of a second of blue screen.


Ah, thanks for clarifying. So you are limited to line double mode to eliminate the drop outs through VP50?


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Thu Jul 20, 2017 12:32 pm 



Joined: 10 May 2015
Posts: 331
Location: Stockholm, Sweden
While I've been an XRGB fanboy for many years, I've always been annoyed by its noise. The OSSC wasn't an option due to its lack of 1080p output but thanks to V1.6 I did get interested in this unit. So interested that I reserved one. HDMI also makes things much easier for me. I don't care for input lag, never noticed any with my XRGB-Mini on my current setup. Since it can give me 5X scaling and output at 1080p with (hopefully) no color noise, I'm pretty much happy. I'll keep the XRGB-Mini as well since it has way too many features that I'd otherwise be missing. This is very exciting overall.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Thu Jul 20, 2017 1:32 pm 



Joined: 17 Jan 2016
Posts: 162
Does the hdmi version also output sound via hdmi?


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Thu Jul 20, 2017 1:36 pm 



Joined: 10 May 2015
Posts: 331
Location: Stockholm, Sweden
Yes, it supposedly does.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Thu Jul 20, 2017 1:40 pm 



Joined: 09 Apr 2012
Posts: 1960
zak wrote:
ZellSF wrote:

Didn't you eliminate the dropouts by unlocking the framerate on your VP50? :) Or am I mistaken?
No, by a combination of unlocking the framerate on the VP50 and using line2x for both 240p and 480i. It's a fairly substantial image quality hit you only want to be taking for games that switch modes often.

For most games I have the OSSC set to 480 passthrough and 240p line5x. There I get dropouts of a second of blue screen.


Ah, thanks for clarifying. So you are limited to line double mode to eliminate the drop outs through VP50?

Pretty much, yes.

I wonder if DVDO Edge / Duo processors could do smooth 240pX4/480iX4 transitions...


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sat Jul 22, 2017 8:45 am 


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Joined: 15 Dec 2012
Posts: 436
Location: Finland
Blair wrote:
LK4O4 wrote:
I keep forgetting that this is the OSSC thread. Would it be possible to change the name of this topic to something like "OSSC: Open Source Scan Converter" similar to the Framemeister thread?


As far as I know that would be up to Marqs as he's the one that created the thread originally so he would have to go into the post editing options and change the thread title. him and BuckoA51 have also suggested that users post OSSC related questions in the official OSSC forums at
https://www.videogameperfection.com/forums/forum/ossc/
I couldn't find an option to change thread title. Editing first post only allows changing its subject (like other posts) and I doubt it affects actual thread.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sat Jul 22, 2017 10:00 am 


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Joined: 06 Mar 2006
Posts: 10513
Location: Germany
Quote:
Editing first post only allows changing its subject (like other posts) and I doubt it affects actual thread.

it does :mrgreen:


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sat Jul 22, 2017 2:12 pm 



Joined: 22 Jul 2017
Posts: 1
I just heard about this wonderful scaler.

There's one topic that I have never seen to be covered by any scaler: Legacy 3D glasses support. Would it be possible to add Legacy 3D glasses support for the OSSC?

The Sega Master System is the main system that had support for this, but many other systems of the 80s and 90s support the 3.5mm 3D glasses output connector. Just to name a few:


There is a lot of technical info about legacy 3D systems and formats at this webpage.

Of course the main target for this feature would be the Sega Master System, as it sports a wonderful library of 3D games that can't be experienced without proper 3D glasses support.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 23, 2017 1:31 am 


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Joined: 28 Jan 2012
Posts: 777
Location: San Jose, CA
nissling wrote:
Yes, it does.

Fixed.


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Sun Jul 23, 2017 3:57 am 


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Joined: 01 Apr 2005
Posts: 259
Guspaz wrote:
I would think that Duck Hunt should work fine on a 31 kHz display if the overall latency is low enough.


I can play Duck Hunt on my 480p Panasonic Tau if I set my OSSC to Line 2x.

I haven't figured out how to get Time Crisis to work with it though...


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Mon Jul 24, 2017 7:05 am 


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Joined: 11 May 2015
Posts: 500
Location: America
Triple Lei wrote:
Guspaz wrote:
I would think that Duck Hunt should work fine on a 31 kHz display if the overall latency is low enough.


I can play Duck Hunt on my 480p Panasonic Tau if I set my OSSC to Line 2x.

I haven't figured out how to get Time Crisis to work with it though...


what type of video set up are you using? to your cables have the little pigtail at the end for syncing with the light gun?

sd_snatcher wrote:
I just heard about this wonderful scaler.

There's one topic that I have never seen to be covered by any scaler: Legacy 3D glasses support. Would it be possible to add Legacy 3D glasses support for the OSSC?

Of course the main target for this feature would be the Sega Master System, as it sports a wonderful library of 3D games that can't be experienced without proper 3D glasses support.


is there a technical reason why those systems don't already work when a system is directly connected to a modern monitor? I'm not sure how or why the OSSC would have any bearing on whether a 3-D glasses solution works properly or not. wouldn't that depend on what type of monitor technology the glasses were designed for in the first place?


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 Post subject: Re: OSSC (DIY video digitizer & scandoubler)
PostPosted: Mon Jul 24, 2017 11:50 am 



Joined: 17 Jan 2016
Posts: 162
I have my ossc running to 2x bvm and a fw900. Duck hunt works for me on all of them


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 Post subject: Re: DIY video digitizer & scandoubler
PostPosted: Mon Jul 24, 2017 7:55 pm 


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Joined: 01 Apr 2005
Posts: 259
Blair wrote:
what type of video set up are you using? to your cables have the little pigtail at the end for syncing with the light gun?


It's been a while but I think I tried two setups with the OSSC:

1) PS2 using the light gun SCART cable from retro_console_accessories ("PlayStation RGB SCART, Sync-on-Luma with Guncon support"). I quickly realized I didn't have anywhere to put the yellow cable; the Panasonic Tau was in DVI mode so I could use the OSSC in the first place.

2) PS2 with component cables. I thought I'd put the yellow Guncon cable in the green component port in the OSSC, but that didn't work either.

I don't think the cursor even appeared on that startup test.


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 Post subject: Re: OSSC (DIY video digitizer & scandoubler)
PostPosted: Tue Jul 25, 2017 12:11 am 


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Location: San Jose, CA
Has anyone also tried an OSSC with a PC-8801 or PC-9801? I don't see there being any problems but I thought it'd be nice to ask regardless.


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 Post subject: Re: OSSC (DIY video digitizer & scandoubler)
PostPosted: Tue Jul 25, 2017 4:43 am 


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Posts: 223
Location: Philippines
Wondering if anyone else is encountering the same or similar issues. Can't seem to use my PC Engine via dbGrafx Booster and OSSC. I have a set up that is running on a 15" ViewSonic PC CRT and generally have no issues with Super Famicom and Genesis 3 but can't seem to get anything to output with the PCE. I have an older revision of dbGrafx Booster (rev.C manufactured in Aug.'15) that doesn't seem to have a jumper switch which would allow me to select between two different csync settings/levels (75 and TTL). I'm also using an SCART cable with csync and outputs pure sync signal. Lastly, would HD Retrovision Genesis YPbPr Component Cable work differently in terms of csync? Any help would be much appreciated.


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 Post subject: Re: OSSC (DIY video digitizer & scandoubler)
PostPosted: Wed Jul 26, 2017 1:31 pm 



Joined: 26 Jan 2017
Posts: 6
With the new HDMI output, I was hoping to use an HD Fury Gamer Edition (version 1) HDMI to VGA cable that I acquired on sale. However, I noticed on the product page for the cable it has the following:

“A power supply cannot be added to the HDfury Gamer Edition cable due to the all-in-one sealed design. The HDfury Gamer Edition should therefore only be used when connecting a PS3 or Xbox360 Elite directly to a display device. We recommend that the standard HDfury with power supply be used for all other setups. If you are looking for ultimate quality and compatibility watch the brand new 2009 HDfury2, 2010 HDfury3 or 2012 HDfury4 !”

Does anyone have experience with this cable or know if it should work with the OSSC. I’m assuming it is pulling power from the HDMI port, but I have no clue how this would affect the OSSC unit itself.

Thanks!


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 Post subject: Re: OSSC (DIY video digitizer & scandoubler)
PostPosted: Thu Jul 27, 2017 4:19 am 


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Joined: 11 May 2015
Posts: 500
Location: America
quick question, would these adaptors let me connect RGBS/YUV sources to the OSSC scart input?

I wanted to use the video-out on a chained PVM to line double and record gameplay. any possible dangers or failure points? (besides cable quality).

Image

Image


azmun wrote:
Can't seem to use my PC Engine via dbGrafx Booster and OSSC. I have a set up that is running on a 15" ViewSonic PC CRT and generally have no issues with Super Famicom and Genesis 3 but can't seem to get anything to output with the PCE.


have you tested the PC engine+OSSC on any other display besides the ViewSonic?


Tapeworm wrote:
Does anyone have experience with this cable or know if it should work with the OSSC. I’m assuming it is pulling power from the HDMI port, but I have no clue how this would affect the OSSC unit itself.


I'm getting an HDGamer2 in the mail soon (somebody had a used one for sale, only $10. couldn't pass up that deal) specs indicate that it can be used with or without a power source so I'm assuming it should perform the same without a power source as the HDGamer1. so I'll give that a test and report back here later.


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