UPDATE - Xbox 360 Spring Update “Reference Levels” explained.
Received an updated reply from Microsoft that further clarifies the reference levels enhancement included in the Spring Update. The reply is from Microsoft’s John Rodman, Senior Product Manager, Xbox Global Platform (followed by the original post):
Q: Any chance one of your tech contacts could explain in layman’s terms exactly what VGA level referencing is and how it affects 360 users who connect with VGA?
A: We added a new feature to the 2007 Xbox System Update which is actually fairly common among consumer electronics devices. You may know it by a variety of names; Reference Levels, Output levels, Black Levels, Blacker than black, Enhanced Blacks, Setup, PLUGE -all of this is talking about roughly the same functionality. In Xbox 360 we call it
“Reference Levels” for those using HDMI or VGA cables and “Black Levels” for Component or Standard cables.
At a very high level, this feature is here to accommodate the different methods that TVs use to receive a video signal. More specifically it addresses the different ways that “black” and “white” can be represented in that video signal. If you want to dig a little deeper, the easiest way to think about this is to imagine a scale from 0 to 100. 0 is the dark end and 100 is the light end of the scale.
Because of the multiple “standards” put out by the Consumer Electronics Association (CEA) and the Video Electronics Standards Association (VESA) there is some confusion around what the term “Black” actually means. Some TVs expect black to be 0 while others expect it to be at 7. So, if the Xbox 360 outputs 7.5 as “Black” and it is connected to a TV that expects “Black” to be 0, it will result in a washed out colors. Conversely, if the Xbox 360 outputs 0 as black and the TV expects to get 7.5, it will end up with a very dark picture.
If video from your Xbox 360 looks too bright or too dark, you should try each of the settings and see what works best for your particular TV. If you are happy with you’re the video from your Xbox 360, then don’t bother changing it.
Continue reading ‘Review: Xbox 360 Elite & VGA vs. HDMI’
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