Results 1 to 8 of 8

Thread: OSSC (Open Source Scan Doubler) Discussion

  1. #1
    BubbaMc's Avatar
    Join Date
    Jan 2015
    Country
    Australia
    Region:
    Perth, WA
    Age
    37
    Posts
    15
    Feedback
    0

    Default OSSC (Open Source Scan Doubler) Discussion

    I've recently got one of these and was absolutely blown away! Didn't see a dedicated thread here apart from a member which recently offered some available for sale, so I thought I'd make this one. If you're looking to connect your Amiga (or any system designed for 15khz CRT) on pretty much any modern display, I think this solution is the best we could ever hope for.

    OSSC Wiki: http://junkerhq.net/xrgb/index.php?title=OSSC

    There are some photos in this thread showing what it can do for your Amiga, along with verified settings: http://eab.abime.net/showthread.php?t=84788

    If current owners could chime in with their experiences with the device, that'd be great

    Additionally, if there are any questions regarding the use of the device, post them here and I'll do my best to answer them.
    Last edited by BubbaMc; 7th October 2017 at 02:06.

  2. #2
    cugar124's Avatar
    Join Date
    Feb 2011
    Country
    England
    Region:
    Norfolk
    Age
    46
    Posts
    1,416
    Feedback
    49 (100%)

    Default

    interesting very expensive no reason to swap over if you have an Indi but tell me if I am wrong?

    Kind regards

    Al
    ZX Spectrum Plus;Gaming I7 PC; A4000 Cyberstorm MK2 128MB, Big Ram Plus, Ariadne 2, DCE Cybervision 64/3D, Indi Mk2 CR Fast ATA Vortex 386 16mb. Commodore 128D

  3. #3
    Amibayer! demolition's Avatar
    Join Date
    Oct 2012
    Country
    Denmark
    Region:
    Copenhagen
    Age
    37
    Posts
    1,995
    Feedback
    53 (100%)

    Default

    It is better than the Indivisions for several reasons in my opinion. Indy ECS and AGA MkI are similar and by many considered the best of the Indivisions, however they can only provide VGA output. They are also not without issues. The AGA can be tricky to install and can tend to pop out and the ECS does not remember all its settings properly every time it boots (I am not sure if the AGA have the same issue). The AGA MkII has the DVI output but the scanline emulation is quite bad on my opinion and it is hard to make it do proper 50 Hz throughput to a monitor/TV. I cannot make the MkII provide a picture at all on my TV using a DVI-HDMI adapter.

    The OSSC provides very low latency conversion (one scanline), very nice looking scanline emulation for those who like to use that, and proper 50 Hz output for stutter-free motion. Also, since it is external, you only need to buy one to be able to use it with all your Amigas and other retro-devices, so in the end it could very well be cheaper if you like to use several different computers like I do. Contrary to the Indivision, the OSSC works well with the HDMI input on my TV, so I certainly do not regret buying one.
    A1200 (NOS) : 030 33MHz 128MB fast RAM (ACA1232) : Indivision AGA MkII : 8GB CF : RR USB : Ethernet
    A600 #1 : 68080 V2 : 128MB fast : 2MB chip : Indivision ECS : 4GB CF : RR USB
    : Ethernet | A600 #2 : 010 : 2MB chip
    A500 : 68000 42MHz : 1MB chip : 8MB fast : 4GB CF | A500+ : 68080 V2 : 128MB fast : 2MB chip : 16GB SD

  4. #4
    GurúMeditating trixster's Avatar
    Join Date
    Apr 2014
    Country
    England
    Region:
    Yorkshire
    Posts
    284
    Feedback
    18 (100%)

    Default

    I have an OSSC which I use with my consoles. I currently have a Megadrive, SNES, Jaguar, PS1, PS2 and Saturn hooked up to one through a scart switcher, and all look absolutely fantastic.

    Totally rexommended.
    Last edited by trixster; 7th October 2017 at 21:37.
    A1200 + B1260 80Mhz + Indi AGA2 + Ide-fix Express | Atari Falcon + CT60e 100Mhz | SNES
    A4000/040 + Cyberstorm Mk2 66Mhz + Sonnet PPC 400Mhz + Voodoo3 + Indi AGA | Saturn | PS1
    A3020 | A3000 | BBC B | BBC Master | Atom | CPC6128 | A500 | Atari Jaguar | C64 | 3DO

  5. #5
    BubbaMc's Avatar
    Join Date
    Jan 2015
    Country
    Australia
    Region:
    Perth, WA
    Age
    37
    Posts
    15
    Feedback
    0

    Default

    Quote Originally Posted by cugar124 View Post
    interesting very expensive no reason to swap over if you have an Indi but tell me if I am wrong?

    Kind regards

    Al
    Some advantages of the OSSC:

    • Framebufferless design so there's almost zero latency, fractions of a millisecond (Indivision uses a scanbuffer so the minimum latency it could achieve is 16ms)
    • 50Hz refresh rate is fully supported, so there is no stuttering with a moving picture - most Amiga games are 50Hz, not 60
    • Audio is converted to PCM and carried over the HDMI cable
    • Many different line multiplication modes are available, so there's more chance of getting a pixel perfect/integer scaled display on your particular monitor or TV. For example, with 5x output fed into a 1080P TV, it's possible to get an integer scaled picture which is perfectly sharp. Some lines on the top and bottom will be cropped, but Amiga games don't use the full display anyway.
    • Regular firmware updates adding new modes and features.


    Basically what demolition said. Plus there are a whole lot of other settings and tweaks available which I doubt are possible with the Indivision. Refer to the Wiki for details on these.
    Last edited by BubbaMc; 8th October 2017 at 02:55.

  6. #6
    GurúMeditating trixster's Avatar
    Join Date
    Apr 2014
    Country
    England
    Region:
    Yorkshire
    Posts
    284
    Feedback
    18 (100%)

    Default

    It is worth mentioning that not all tv's can handle the 3x 4x and 5x modes, so some research might be necessary before purchasing to avoid disappointment. That said, my 1080p tv (a Panasonic GT50) will only handle 2x and I still think the quality is amazing and still heartily recommend the OSSC.
    A1200 + B1260 80Mhz + Indi AGA2 + Ide-fix Express | Atari Falcon + CT60e 100Mhz | SNES
    A4000/040 + Cyberstorm Mk2 66Mhz + Sonnet PPC 400Mhz + Voodoo3 + Indi AGA | Saturn | PS1
    A3020 | A3000 | BBC B | BBC Master | Atom | CPC6128 | A500 | Atari Jaguar | C64 | 3DO

  7. #7
    Amibayer! demolition's Avatar
    Join Date
    Oct 2012
    Country
    Denmark
    Region:
    Copenhagen
    Age
    37
    Posts
    1,995
    Feedback
    53 (100%)

    Default

    True, I also have a Panasonic GT50 but even with 2x mode it is worth noting that the picture is still more or less full screen since the TV will scale it up to 1080p, so it is not like you have to play on a tiny 24" rectangle on your large TV.
    Last edited by demolition; 9th October 2017 at 09:58.
    A1200 (NOS) : 030 33MHz 128MB fast RAM (ACA1232) : Indivision AGA MkII : 8GB CF : RR USB : Ethernet
    A600 #1 : 68080 V2 : 128MB fast : 2MB chip : Indivision ECS : 4GB CF : RR USB
    : Ethernet | A600 #2 : 010 : 2MB chip
    A500 : 68000 42MHz : 1MB chip : 8MB fast : 4GB CF | A500+ : 68080 V2 : 128MB fast : 2MB chip : 16GB SD

  8. #8
    Asking the questions because I DON'T KNOW Amibayer!
    Staff Moderator
    slk486's Avatar
    Join Date
    Apr 2010
    Country
    Denmark
    Region:
    Sealand
    Posts
    6,151
    Feedback
    134 (100%)

    Default

    I have had the Indivison, the Framemeister Mini, and the OSSC blows them both out of the water - event at x2 and much more compatible. The Framemeister has an advantage in scaling sharpness at x2, but the OSSC more than makes up it with 0 lag (yes, it is effectively 0).

    I heartily recommend investing in a DVDO Edge to sit after the OSSC. It handles bloody anything (well except x5)
    I do believe Samsung 4K tv's do accept x5, btw.
    Last edited by slk486; 9th October 2017 at 11:48.
    ^^^ IMHO... Always IMHO ^^^

    r0jaws is my hero
    Keropi is my supreme being

Similar Threads

  1. Replies: 65
    Last Post: Yesterday, 10:48
  2. Sold Scan magic scan doubler flicker fixer 1200/4000
    By Justin in forum Sales Archive
    Replies: 11
    Last Post: 28th December 2012, 09:12
  3. Sold Scan Magic Scan Doubler Flicker Fixer -1200/4000
    By Bastich in forum Sales Archive
    Replies: 9
    Last Post: 31st October 2012, 16:33
  4. Closed SOLD: Scan Magic Internal (Scan Doubler Flicker Fixer)
    By Zetr0 in forum Sales Archive
    Replies: 6
    Last Post: 30th January 2008, 16:49

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •