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Which Calibration Disk Is Better?

Flipsonic
02-08-2007, 10:15 AM
Avia or DVE? Is there anything better than these two for my equipment (see below)? Thanks.

zapper
02-09-2007, 07:06 PM
The below Disk is about to be released around March, 1.??????????
for about the high 20's or low 30's.

Digital Video Essentials - HD DVD

tcarcio
02-09-2007, 07:22 PM
I use the Avia disc so far it had the best reviews I could find and it was pretty easy to follow. I know it made a differance on my Optoma HD-72. It also had great test tones for audio as long as you have the Radio shack spl meter. It is recomended to get the anolog meter as it is better than the digital one. At least that is what I read in alot of the reviews.

borromini
02-10-2007, 12:18 AM
I liked DVE better...however, either one will work.

Lee Stewart
02-10-2007, 07:35 AM
I guess i am going to get flamed but what the heck. . .

For the life of me I can't see the need for a fancy test disk when all you are going to adjust is Black, White and Color Levels.

In the past when CRT based Front and Rear Projection dominated the marketplace . . .there was a need for test discs as there were so many more adjustments like the all important Convergence and Overscan and Color Temperature affecting Gray Scale.

Now I can't even adjust the Tint control on my Sam. 5053.

Many DVD's have the THX Optomizer test patterns which provide the main adjustments I previously mentioned.

In My opinion. . .anything deeper into the adjustments should be left to a professional who knows exactly what they are doing and knows their way around the service menu's. This is an area where more times than not you will worsen the image as opposed to bettering it due to lack of analytical equipment.

Why spend money on a disc that you may have already spent money on?

Lee

tcarcio
02-10-2007, 08:06 AM
This may be the case for you but I know it made a differance on my projector, plus it does all the tones for audio. I agree to go to deep without a pro is usually a bad thing but for what the avia disc has I think it was well worth it.

JMS
02-10-2007, 10:59 AM
Avia or DVE? Is there anything better than these two for my equipment (see below)? Thanks.

I have used both and I give extra points to DVE for video adjustment and Avia for audio adjustments, even though Avia doesn't support DTS. (I have found that the DD settings are the same for DTS, even though for some reason DTS soundtracks are 3 to 5 dB louder than the same DD track.) I think Avia is particularly valuable in setting the critical crossover point in sub/sat surround systems. This is where the spl meter pays for itself.

The DVE disc is responsible for me getting the best out of a just OK display, a Hitachi 50V500 LCD-RP. This set, in addition to the usual color controls, has two sub-menus regarding color adjustment. The first is called "Color Management" and has up/down % adjustments for

magenta
red
yellow
green
cyan
blue
The second, called "Color Decoding" and has similar adjustments for

red
green
blueThese are not service menu adjustments. (I have been into my service menu. It is a very dark and scary place to be, and I have not done anything there.)
DVE has a very valuable color bar display that looks like this:

http://i160.photobucket.com/albums/t171/JohnS45/DVEcolorbars.jpg

You make adjustments using the three color filters that come with the DVD. It took a while, but with the color bar/filter adjustments, including adjustments on my sub-color menus, I was able to make a significant improvement in my PQ. It did not improve the weak black level very much, but that's the nature of the beast.

My point here is that in terms of video improvement alone the DVE is well worth the $25 (or whatever it costs now) and could be useful on displays that have more than just the usual color/tint/brightness controls.

BTW, the question often asked is whether the DVD adjustments transfer over to OTA, cable and sat signals. All I can say is that they do in my case with an HD cable box. I have no experience with other situations.

daleb
02-11-2007, 01:37 PM
I think the point on the THX Optimizer is a good one. But I also think for an initial installation, especially for speakers too, Avia, DVE, etc are the way to go.
I find the THX Optimizer good a check and quick tune to make sure nothing has drifted too much. And with lamp projection, I assure you, things will drift (as they did with CRTs) but not as much.

As far as not going into more technical tests on the disk, that's true, and they do warn you of those. But I would not avoid the disk because it has more patterns than you need, kind of like throwing out the baby with the bath water.

d6500k
02-11-2007, 11:07 PM
Black and white levels are critical. A crossed 10 step pattern or High/Low 1 to 10 /90 to 100 IRE patterns sure do help. Neither of these are on the THX freebees, wish they were but nada.

As for not being able to adjust tint, some displays have gone to this with their HDMI inputs. I think you will find you will have full control over the component inputs and the variation of signal paths has been moot in all but some resolution patterns, never in actual viewing scenarios. We ISF techs went ballistic when sammy and others basically said, "we are perfect! You need not have control over phase (tint)". Balderdash.... phase/tint control is imperative if you are still viewing any SD and is pretty important with HD as well. DVD's (both sd/hd) are not as affected if the display is calibrated to standards. Read measured.

Any DIY cal again must start/end with B/W levels. To get the rest close, you better have the basics wired.

Doug k

JMS
02-12-2007, 08:04 AM
This is the first time I have heard of any display disabling any picture controls with HDMI.
Is it just Samsung, or are there others?

paulc
02-13-2007, 10:10 AM
This is a trend that goes back quite a ways. In the computer monitor market, one had more "control" over the picture when it was connected via VGA than DVI. BUT that was ON the monitor, I have just as much "control" via DVI, but from the computer side, not the monitor itself.

d6500k
02-13-2007, 10:44 AM
BUT that was ON the monitor, I have just as much "control" via DVI, but from the computer side, not the monitor itself

In a circuitous way, control is/can be available but a scaler/processor is required. These devices generally have controls that exceed most internal display controls as well. Aside from actually scaling all data rates to the displays native rate, these processors have saturation, phase, B/W levels and in many cases grayscale controls. A good solution for many of the folks that require ultimate images.

Doug k

mfguerrera
02-13-2007, 05:25 PM
maybe i'm just inpatient, but i just got the DVE dvd and am not thrilled with it. there is so much talking. you basically have to forward around the dvd to find the adjustment sections.

not to mention, the picture does not look as good when i adjusted it.

i guess i'll try it again.

d6500k
02-13-2007, 07:54 PM
maybe i'm just inpatient

A bit.. But again there are a few of us that won't settle for less than an accurate image.

If, after you have tried to get it perfect you want it to be measured, hire an ISF tech. I personally "cut a deal" for a true perfectionist that has given his/her all. Many of my colleagues feel as I do.

Doug k