AVS HD 709 - Blu-ray & MP4 Calibration - Page 149 - AVS Forum | Home Theater Discussions And Reviews
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post #4441 of 4459 Old 01-27-2017, 12:14 PM
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Quote:
Originally Posted by ConnecTEDDD View Post
No, there no patterns available to AVSHD for Color Gamut using 75% Saturation with 75% Luminance patterns.
And that's what i need for the 75%/75% procedure right?
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post #4442 of 4459 Old 01-27-2017, 12:27 PM
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Originally Posted by HammerJoe View Post
And that's what i need for the 75%/75% procedure right?
Yes, 75%/75% means 75% Saturation/75% Luminance (Stimulus Level).

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post #4443 of 4459 Old 01-28-2017, 09:31 AM
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When doing contrast with a white clipping pattern is it okay to have flashing bars up to 250?

Is that too much? What would be the ideal set? 235 perhaps?
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post #4444 of 4459 Old 01-31-2017, 01:03 AM
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Originally Posted by HammerJoe View Post
When doing contrast with a white clipping pattern is it okay to have flashing bars up to 250?

Is that too much? What would be the ideal set? 235 perhaps?
Hi, 235 is the reference white (100% White), the ideail is to see the all flashing bar above 235, not only to flash but to have a gray-ish shade also.

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post #4445 of 4459 Old 02-07-2017, 07:35 AM
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Hi guys, I am a newb to calibrating TV's. I just purchased a Samsung 4k for my bedroom and want to calibrate it using this free disk. However I do not have a blueray player in my room. Is it possible to stream this video from a source or boot from a USB to calibrate? I have a PS4 in my living room so worst case i can burn to a DVD and move it upstairs but my wires are going behind my wall so I would obviously like to avoid removing the cables and snaking them through again. Thanks in advance!

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post #4446 of 4459 Old 02-07-2017, 07:39 AM
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Originally Posted by sranda03 View Post
Hi guys, I am a newb to calibration and TV's. I just purchased a Samsung 4k for my bedroom and want to calibrate it using this free disk. However I do not have a blueray player in my room. Is it possible to stream this video from a source or boot from a USB to calibrate?
You can download the MP4 version of the AVS HD 709 patterns.

Last edited by Dominic Chan; 02-07-2017 at 07:43 AM.
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post #4447 of 4459 Old 02-09-2017, 05:44 AM
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Are there any detriments for using the APL patterns for an LCD TV? I tried and ran the Greyscale and Color (100% A / 100% S) patterns with both the APL patterns and the Full Fields patterns and the results were mostly the same (the biggest differences were about 0,3 dE), except for the color blue, specifically in delta luminance. The Full Field patterns show a significantly lower amount of blue. All the other colors have almost the same delta luminance. I've turned all the auto dimming functions off, but I read that Samsung's LCD TV's have some sort of auto dimming features that can't be turned off which can occur when the screen shows a very bright image covering almost (or fully) the whole screen.

I know it is usually recommended to use Full Field patterns on LCD TV's, but are there any reasons not to use the APL patterns? If so, why? The reason why I might preder using the APL patterns, because if I understood correctly, my TV might auto dimm the test patterns with some full field test patterns and if it does so, the measurements are incorrect.

I'm using HCFR with the AVS HD 709 disc. The TV I have is a Samsung LE40C530. The colorimeter is X-Rite i1 Display Pro III.
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post #4448 of 4459 Old 02-10-2017, 02:18 AM
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Originally Posted by Daffypuck View Post
Wow, this is a lot of info to assimilate. Which file should I DL to burn a BD test disc? I want to calibrate my projector which is using a PS3 for BD. Are there instruction files included with the DL?
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Originally Posted by willieconway View Post
AVCHD. It's all in the first post. There's also a link to a manual on how to use the patterns.
Hi, if you have plans to burn using a blank BD-R/BD-RE disc then download HDMV.exe from the first post of this thread.

If you want to burn it using a blank DVD-R/RW disc then download the AVCHD.exe.

AVCHD format uses a disc structure designed for Blu-ray (with some limitations), you will get 1080p24 (23.976) when you will playback that dvd disc.

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post #4449 of 4459 Old 02-28-2017, 04:50 PM
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Thanks for this.

I will use it to calibrate 3D mode on an Epson 3700/6700 3LCD projector. Will post back the results. Anything I should know before starting?
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post #4450 of 4459 Old 03-13-2017, 06:02 PM
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Hi guys, I have a couple questions:

- Is the 2010 version still the latest version?
- Is there any reason why my (W1070) projector seems to work better when its HDMI input is set to PC instead of Video? That seems contrary to everything I've been told to do. This is at least when outputting from a PS$ playing blu-ray (the Spears & Munsil disc).
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post #4451 of 4459 Old 03-13-2017, 07:00 PM
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Quote:
Originally Posted by ConnecTEDDD View Post
Hi, 235 is the reference white (100% White), the ideail is to see the all flashing bar above 235, not only to flash but to have a gray-ish shade also.
Why do they say it's "above" 235, when actually it's "below" (i.e 234, 233, 232...)?
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post #4452 of 4459 Old 03-14-2017, 05:05 AM
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Originally Posted by aaranddeeman View Post
Why do they say it's "above" 235, when actually it's "below" (i.e 234, 233, 232...)?
Hi, see there: 2016 LG C6-B6 owners thread

It can happen if you calibrate with meter/software your Grayscale the near 100% Reference White bars to look grayish but the bars above 100% Reference White to have strange tints.

Also a very important pattern is the Color Clipping Pattern, look what are you checking with that one here: AVS HD 709 - Blu-ray & MP4 Calibration

Ted's LightSpace CMS Calibration Disk Free Version for Free Calibration Software: LightSpace DPS / CalMAN ColorChecker / HCFR
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Meters: JETI Specbos 1211, Klein K-10A, i1PRO2, i1PRO, SpectraCAL C6, i1D3, C5

Last edited by ConnecTEDDD; 03-14-2017 at 06:54 AM.
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post #4453 of 4459 Old 03-14-2017, 07:30 PM
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Quote:
Originally Posted by ConnecTEDDD View Post
Hi, see there: 2016 LG C6-B6 owners thread

It can happen if you calibrate with meter/software your Grayscale the near 100% Reference White bars to look grayish but the bars above 100% Reference White to have strange tints.

Also a very important pattern is the Color Clipping Pattern, look what are you checking with that one here: AVS HD 709 - Blu-ray & MP4 Calibration
Hi Ted, my question was if 235 is reference white then anything above 235 (236,237...) can either flash or clip. However anything below 235 (234, 233...) should flash and have grey tint.
If this is correct, then statement "235 and above" should flash confuses me. Shouldn't that be 235 and below must flash?
or I got it totally wrong?
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post #4454 of 4459 Old 03-14-2017, 09:17 PM
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Quote:
Originally Posted by aaranddeeman View Post
Hi Ted, my question was if 235 is reference white then anything above 235 (236,237...) can either flash or clip. However anything below 235 (234, 233...) should flash and have grey tint.
If this is correct, then statement "235 and above" should flash confuses me. Shouldn't that be 235 and below must flash?
or I got it totally wrong?
It's a "given" that 235 and below should not flash when properly calibrated. However, what Ted is saying is that even above 235 there still shouldn't be any clipping or discolouration, i.e., ideally 235 and up should still be flashing without tint.

Note that there are two schools of though regarding this; some people think that you "must" clip at 235, but that's a separate debate..

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Last edited by Dominic Chan; 03-15-2017 at 04:29 AM.
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post #4455 of 4459 Old 03-15-2017, 02:47 AM
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Quote:
Originally Posted by aaranddeeman View Post
Hi Ted, my question was if 235 is reference white then anything above 235 (236,237...) can either flash or clip. However anything below 235 (234, 233...) should flash and have grey tint.
If this is correct, then statement "235 and above" should flash confuses me. Shouldn't that be 235 and below must flash?
or I got it totally wrong?
Hi, 235 and below in Contrast and Color Clipping Patterns has to flash, to the Contrast pattern, if you have meters and pre-calibrated Grayscale up to 100% (so 90% or 95% will be calibrated also) then they will not have any shade other than neutral gray-ish. For the levels above 235, the ideal is to see them flashing also. (in both Contrast or Clipping Patterns).

Commercial movies from YCbCr 4:2:0 data (which is video levels) inside a disk -> chroma subsampling/player colorspace conversion -> TV internal (to input or to processing) conversions...can affect the signal, and there specific pixels where @ YCbCr -> RGB conversion are giving above 235 RGB Triplets, so to be sure that all are fine during movie playback, you set your contrast with patterns to see above 235 also.

Now with peak levels display has, there to problem with reducing contrast ratio when you reduce some contrast slider to see more bars flashing since any display can reach about 300-400nits while you have to reduce that to 100-120 nits to match the mastering luminance levels of SDR blu-ray's.

If you read the link I posted it's say the same.

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post #4456 of 4459 Old 03-15-2017, 04:50 AM
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Quote:
Originally Posted by ConnecTEDDD View Post
Hi, 235 and below in Contrast and Color Clipping Patterns has to flash, to the Contrast pattern, if you have meters and pre-calibrated Grayscale up to 100% (so 90% or 95% will be calibrated also) then they will not have any shade other than neutral gray-ish. For the levels above 235, the ideal is to see them flashing also. (in both Contrast or Clipping Patterns).

Commercial movies from YCbCr 4:2:0 data (which is video levels) inside a disk -> chroma subsampling/player colorspace conversion -> TV internal (to input or to processing) conversions...can affect the signal, and there specific pixels where @ YCbCr -> RGB conversion are giving above 235 RGB Triplets, so to be sure that all are fine during movie playback, you set your contrast with patterns to see above 235 also.

Now with peak levels display has, there to problem with reducing contrast ratio when you reduce some contrast slider to see more bars flashing since any display can reach about 300-400nits while you have to reduce that to 100-120 nits to match the mastering luminance levels of SDR blu-ray's.

If you read the link I posted it's say the same.
Thank you. This is making it much clear(er).
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post #4457 of 4459 Old 03-15-2017, 07:27 PM
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Quote:
Originally Posted by Dominic Chan View Post
It's a "given" that 235 and below should not flash when properly calibrated. However, what Ted is saying is that even above 235 there still shouldn't be any clipping or discolouration, i.e., ideally 235 and up should still be flashing without tint.

Note that there are two schools of though regarding this; some people think that you "must" clip at 235, but that's a separate debate..
Oh. I was somehow thinking that 235 is the end. Anything above should not be their in real world material. Looks like that is not the case.
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post #4458 of 4459 Old Today, 09:42 AM
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Hey there. Extremely new to the forums here. I really appreciate the effort you guys have put into this calibration resource over the years.

I just wanted to mention that the link to the Patterns Manual doesn't seem to be working, unless I'm stupid and missing something. Thought you might like to know. Thanks again!
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post #4459 of 4459 Old Today, 10:00 AM
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Hey there. Extremely new to the forums here. I really appreciate the effort you guys have put into this calibration resource over the years.

I just wanted to mention that the link to the Patterns Manual doesn't seem to be working, unless I'm stupid and missing something.
For some reason it no longer works. However, the alternative link still works.

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