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TPM Edge Enhancement Paranoia aka Ken is a Dimwit

Discussion in 'Archived Threads 2001-2004' started by Ken_McAlinden, Apr 2, 2002.

  1. Ken_McAlinden

    Ken_McAlinden Producer
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    Kenneth McAlinden
    I was visiting my Sister-in-law for the holiday, and, being the somewhat obsessive compulsive fool that I am (I did actually ask for permission first), I tweaked their 35" Sony TV to reduce overscan, fix the resulting geometry problems around the edges, turn off the red push, and improve black level retention (all easily done via the service menu and a few test patterns). I then set all of their normal color and contrast controls to acceptable levels.

    I put in a few discs to see how things looked. One of these was "The Phantom Menace". The edge halos were absolutely horrendous. Every one in a Tatooine exterior looked like they had chalk outlines around them. I double checked the "sharpness" controls and they were set to zero. I remembered it being present but not nearly so horrible on my 36" WEGA at home. After verifying this at home, I prepared to write my HTF manifesto about how these edge halos were likely decoder dependent (my Pioneer player's decoder obviously trumping the one in my sister-in-law's Toshiba). Hey, maybe I should fire an e-mail off to Bjoern Roy? I had previously thought that EE was just a problem for those with much larger projection systems who sit closer to their screens than me, but now I could see the problem on a smaller TV from almost anywhere in the room. Now, I knew what everyone was complaining about.

    This morning, I woke up and had another idea. I spun up Phantom Menace. Selected the first exterior scenes on Tatooine, and set "Velocity Modulation" to high. Sure enough, it looked just like my sister-in-law's television. I don't think her TV had a "VM Off" option in its standard menus, so I have one more trick to play in their service menu the next time I visit. I guess this explains why no matter how much I lowered the sharpness on her TV, I never quite got the "edge artifacts" off of that darn indian-head test pattern either. :b

    What's to be learned from this little story? Two things actually:

    1) Always turn VM Off

    2) Ken is a dimwit

    Regards,
     
  2. Jeff Ulmer

    Jeff Ulmer Producer

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    I have VM disabled (yanked the cable) on my set, and the image still looks like Saturn for the amount of ringing.
     
  3. Michael St. Clair

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    Some Sonys that do not have a listed SVM option do have multiple picture modes (Pro, Standard, Movie, Vivid). If the set in question does have these modes, try 'Pro', as it typically kills SVM.

    TPM definitely has EE, but SVM can definitely make it worse.
     
  4. Ken_McAlinden

    Ken_McAlinden Producer
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    There is no question that TPM has halos aplenty, but they are a comparatively mild annoyance on modestly sized screens from a reasonable viewing distance. The larger your screen and the closer your viewing distance relative to the screen size, the more troublesome they become.

    Since SVM (or VM or VSM or whatever they call it this week) "enhances" high contrast areas by creating halos, and the pre-existing halos themselves are high contrast areas, any object that already has edge ringing will look positively radioactive with SVM applied.

    Regards,
     
  5. Artur Meinild

    Artur Meinild Screenwriter

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    Yep, it's still edge enhancement hell no matter what. I run my DVD with a direct signal to the screen without sharpness setting or anything like that.
     
  6. Dave H

    Dave H Producer

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    I have a 61" Sony KP-61V80 and what I don't like is that the owner or service manual says NOTHING about the SVM and the only way to turn it off is to physically unhook the wires inside the set - information given to me by people on this forum, thankfully. This was the greatest picture improvement - even more so than the ISF calibration. The SVM was severe that at one point I seriously thought there was some actual defect with my TV. On any rate, there is NO excuse for Sony not making this an option to do in the menu and informing its viewers about it.
     
  7. Kwang Suh

    Kwang Suh Supporting Actor

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    Word is that those halos aren't EE. The DVD version is in fact the director's cut, and Lucas wanted to show the "Force" around the actors.

    Ok, so I'm a day late.
     
  8. Jeff Cooper

    Jeff Cooper Screenwriter

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    Whatever happened with that 'Edge Enhancement Workshop' or whatever that they announced when we first started complaining about this disc? Did it ever happen?
     
  9. Joseph Young

    Joseph Young Screenwriter

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  10. Scott Burke

    Scott Burke Second Unit

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    I have a standard sony 27 inch television. How do you turn it off. Can I turn it off? I have my viewing mode in Movie calabrated with VE. I do not have a "Pro" optionn.
     
  11. Steve Schaffer

    Steve Schaffer Producer

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    PRO mode is a fairly recent thing on Sonys. If the set is circa 97 or 98 and has a MOVIE mode, svm will be turned off in that mode. I verified this with the needle pulse pattern on my 98 model KV35XBR-48.

    In the service mode on the newer sets, svm is called UVML, and can be turned off for each mode and is also input specific. Don't know if this applies to older models, but if you find UVML in the service mode it's probably SVM. This may have several levels, ranging from 0 for off to 3 for highest svm.
     
  12. Ken Stuart

    Ken Stuart Second Unit

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    First off, I resent this thread Subject ! [​IMG]
    Second, AFAIK all Wegas have SVM on/off in the menus - yet another plus for Wegas !
     

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