Originally Posted by rajivr
What settings would you recommend for ACE and Black Corrector? I read on this forum that Black Corrector crushes the shadows! Not sure if there is any downside to ACE?
I currently have them both on Medium. I think the processing on the HX850 is great overall. It works a lot better than on my W4100 and EX500 sets.
Calibrating against AVS 709 HD (PC and BD player), Spears and Munsil (BD player), and Windows 7 Media Center yuppies (PC), I ended up with the following for my 46HX850, and both WMC and XBMC look identical on the PC with XBMC configured to use hardware acceleration. I also went beyond calibration patterns and looked at some scenes mentioned in various CNet reviews, including ones from the latest Star Trek movie, Tree of Life, and Watchmen, plus some of my own favorites, including 2001 (black levels, contrast, torture test for local dimming with the Jupiter syzygy sequences), The Simpsons (they should be yellow, no tinges of green), and Men in Black III (Tommy Lee Jones' craggy face). For Star Trek and 2001, I was able to AB-test between the PC and BD player, which are on separate TV inputs. These are my common settings for my Sony BDP-BX1 and PC running WMC and XBMC:
Picture Mode: Cinema 1 and 2
Backlight: 4 for Cinema 1 and Max for Cinema 2, which are the only differences. I use Cinema 1 in a dark room.
Color Temperature: Warm 2 (first Sony TV I've preferred Warm 2 to Warm 1; I also have a 46EX500 and 40W4100)
MPEG noise reduction: Off (did not try)
Dot noise reduction: Off (did not try)
Reality Creation: Manual(*)
Video Area Detection: Off
Noise filtering: Min (did not try)
Smooth Gradation: Medium (nice!)
Cinemotion: Auto 2 (Auto 1 gives stuttering and artifacts, same as with earlier Sony TVs)
Black Corrector: Medium
Advanced Contrast: Medium
LED Dynamic Control: Standard(*)
Auto Light Limiter: Medium
Clear White: High (though Warm 2 has the best colors, I'm just not a fan of dingy, reddish whites)
Live Color: Low (intensifies the yellows in Simpsons)
G-Gain: -4 (gets green out of the Simpsons)
Detail and Edge Enhancers: Off (did not try)
Skin Naturalizer: Off (did not try)
About Reality Creation: This is a great feature. However, Auto causes Tommy Lee Jones' face to look too craggy, and it causes artifacts in 2001 in which stars in a starfield can suddenly all brighten at once for no reason. Switching to manual fixes this, and backing the resolution down to 40 sharpens everything nicely while keeping TLJ looking semi-human. I observed no artifacts in various test patterns. (BTW, when I talk about artifacts, I've tested them by turning off features and seeing if they go away, plus seeing if they exist on my NEC 20WMGX2 monitor, also connected to my PC in a dual monitor configuration.)
About LED Dynamic Control: Standard gives very deep blacks. I've noticed overt blooming only in a handful of scenes, the most apparent being the final Jupiter syzygy in 2001, when the camera pans up, and the light show begins. I can easily see the zones brighten and darken as this happens. It really is a pathological case for the technology, but even so, it's much less objectionable than the auto-dimming my W4100 would do in its Standard mode (which could be defeated for all but solid black screens in Custom mode by turning on ACE, which is how I always ran that TV). The good news is, switching to Low seems to completely eliminate this artifact, though the blacks do become a little lighter, but still good. For normal viewing, I leave it at Standard, and I'd do it even for 2001, as its bad side is infrequent, of such short duration, and not very objectionable when it does happen, and Standard looks so amazing.
So, that's about my fourth go at this. I started on General, but I didn't like having to go through Vivid to switch between Custom and Standard. So I decided to try Cinema, with Cinema 1 being for dark room viewing and Cinema 2 being for daytime. I have my HTPC on HDMI 1, with the Nvidia Control Panel's video set to "Limited (16-235)" and the TV's "HDMI Dynamic Range" also on "Limited" for that input; this makes 16 true black while preserving WTW. It gives all but identical results to the BD player on HDMI 3 using the same TV settings aside from the TV's "HDMI Dynamic Range", which I can leave on "Auto" for the BD player; "Auto" is the same as "Full" for the HTPC, and that just doesn't work right irrespective of the Nvidia Control panel settings. (I've always connected my PC directly to the TV due to HDMI handshaking issues which are pathetically common in HTPC circles when going through an AVR; they just don't exist when connecting HDMI directly to the TV. I run S/PDIF from the motherboard to the AVR for audio to eliminate HDMI audio problems. BD player goes to AVR. Another advantage is the ability to have separate settings for HTPC and everything connected to the AVR, which is a necessary bit of freedom IMO.)
I think the end result is stunning. Blacks are inky, and shadow detail and contrast are great in the test discs and WMC yuppie videos. The AVS709HD's black, white, and APL clipping are just like they should be. The shadow detail and black looks great in the scenes from Star Trek, Watchmen, and Tree of Life that Cnet talks about, plus everything else I've thrown at it.