The OSSC Thread
Posted: Tue Apr 04, 2017 3:20 pm
What is the OSSC?
It is line multiplier aimed primarily at improving the image quality of 240p and 480i sources on modern displays. Because it does not have a framebuffer, there is no perceptible lag added to your display.
How many times can it multiply a line?
The OSSC has 2X, 3X, 4X, and 5X modes. With a 240p source, that equates to:
2X=480p
3X=720p
4X=960p
5X=1920x1080, 1600x1200, or 1920x1200. The default is is 1920x1080 which is 1080p. Some if the image is cropped in this mode, but old games typically account for overscan in old consumer CRT TVs which is replicated by this mode.
Supported Resolutions:
240p, 288p, 480i, 576i, 384p, 480p, 576p, 960i, 1080i @ 2X
240p, 288p, 480i, 576i @ 3X
240p, 288p, 480i, 576i @ 4X
240p, 288p @ 5X
That is amazing! Is there a catch?
Yes, 3X and above is not supported by all TVs. TVs often only conform to VESA refresh timing standards. Since the OSSC is only line multiplying, it does not change the refresh rate of the source to match VESA standards. To change the refresh rate, it would require a framebuffer which means lag. 3X and above usually work well with computer monitors which typically handle a wide variety of resolutions and refresh rates. Basically if the OSSC is outputting anything line multiplied higher than 480p, TV support is going to be spotty.
What inputs does it have?
SCART
DSUB15 (VGA or 15khz RGB)
Component video
3.5mm audio jack (for use with the component AV input)
3.5mm audio jack (for use with DSUB15 AV input)
What outputs does it have?
HDMI
3.5mm audio jack (shared with component 3.5mm input jack. Input/Output selectable with mini switch)
Older Hardware Revision Notes
Older versions of the OSSC used DVI output instead of HDMI. Also digital audio out was not a standard feature. Users with the older hardware have to use external speakers or purchase a digital audio upgrade board which has to be soldered into place.
Where can I learn more?
OSSC Purchasing/Preorders
OSSC Wiki
OSSC Support Forum
Reviews:
My Life in Gaming
Fudoh
If you have any specific questions, let me know and I will do my best to answer them.
It is line multiplier aimed primarily at improving the image quality of 240p and 480i sources on modern displays. Because it does not have a framebuffer, there is no perceptible lag added to your display.
How many times can it multiply a line?
The OSSC has 2X, 3X, 4X, and 5X modes. With a 240p source, that equates to:
2X=480p
3X=720p
4X=960p
5X=1920x1080, 1600x1200, or 1920x1200. The default is is 1920x1080 which is 1080p. Some if the image is cropped in this mode, but old games typically account for overscan in old consumer CRT TVs which is replicated by this mode.
Supported Resolutions:
240p, 288p, 480i, 576i, 384p, 480p, 576p, 960i, 1080i @ 2X
240p, 288p, 480i, 576i @ 3X
240p, 288p, 480i, 576i @ 4X
240p, 288p @ 5X
That is amazing! Is there a catch?
Yes, 3X and above is not supported by all TVs. TVs often only conform to VESA refresh timing standards. Since the OSSC is only line multiplying, it does not change the refresh rate of the source to match VESA standards. To change the refresh rate, it would require a framebuffer which means lag. 3X and above usually work well with computer monitors which typically handle a wide variety of resolutions and refresh rates. Basically if the OSSC is outputting anything line multiplied higher than 480p, TV support is going to be spotty.
What inputs does it have?
SCART
DSUB15 (VGA or 15khz RGB)
Component video
3.5mm audio jack (for use with the component AV input)
3.5mm audio jack (for use with DSUB15 AV input)
What outputs does it have?
HDMI
3.5mm audio jack (shared with component 3.5mm input jack. Input/Output selectable with mini switch)
Older Hardware Revision Notes
Older versions of the OSSC used DVI output instead of HDMI. Also digital audio out was not a standard feature. Users with the older hardware have to use external speakers or purchase a digital audio upgrade board which has to be soldered into place.
Where can I learn more?
OSSC Purchasing/Preorders
OSSC Wiki
OSSC Support Forum
Reviews:
My Life in Gaming
Fudoh
If you have any specific questions, let me know and I will do my best to answer them.