AVS HD 709 - Blu-ray & MP4 Calibration - Page 149 - AVS Forum | Home Theater Discussions And Reviews
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post #4441 of 4545 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 4545 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 4545 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 4545 Old 01-31-2017, 01:03 AM
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Quote:
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.

Ted's LightSpace CMS Calibration Disk Free Version for Free Calibration Software: LightSpace DPS / CalMAN ColorChecker / HCFR
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post #4445 of 4545 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 4545 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 4545 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 4545 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 4545 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 4545 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 4545 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 4545 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

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post #4453 of 4545 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 4545 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 4545 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 4545 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 4545 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 4545 Old 03-27-2017, 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 4545 Old 03-27-2017, 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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post #4460 of 4545 Old 03-27-2017, 02:09 PM
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For some reason it no longer works. However, the alternative link still works.
Thanks for the heads up. I missed that alternate link the first handful of times around. What a noob.
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post #4461 of 4545 Old 03-28-2017, 06:17 AM
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Originally Posted by aaranddeeman View Post
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.
Actually, if standards are followed 235 IS the end. Its called Reference White for a reason, it should be the peak white your TV is capable of making. The TV range is basically the same as PC Levels, just with less steps, but that reduction of steps from black to white does give room for the so called BTB and WTW content which PC Levels cannot have. (PC Level is already maxing out the 8-bit colors). But those BTB and WTW signals are techincally "out of specs". That does not mean some movies do not have them but they are very much a minority. To see WTW you have to reduce the contrast slider on your TV, which also means that you are severely reducing the contrast ratio of the TV for most real life content just to give your TV some room for the few movies with little "out of spec" details that really should not even be there and sometimes are nothing but artifacts.

I'm sure some will disagree with this but this is how I see it. I do know that professional video monitors are calibrated to preserve WTW but why they are calibrated so, I do not know. (I think it is because they do want to see possible overshoot artifacts so they can clean them out) Spears And Munsil website say that if you want to clip WTW content or preserve them, both are correct ways to go and its up to you what you value the most. If you like to see what little WTW content is there or left behind, go ahead and keep the WTW visible, but if you want to have the most contrasty image for the actual content within the 16-235 range, clip them out.

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post #4462 of 4545 Old 03-28-2017, 06:51 AM
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Above 235 is not really going to matter, and 240 should satisfy those with a high degree of OCD. And yet we still aim for 250+.. for no frigging reason.

You can turn up the contrast lever as long the whites don't turn pinkish or other weird things, and let it clip between 235-240 (but also check the individual colors and that you still have a linear dynamic range) You don't *have* to do it, but being aware of the possibility can come in handy on some occasions.
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post #4463 of 4545 Old 03-28-2017, 07:32 AM
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Above 235 is not really going to matter, and 240 should satisfy those with a high degree of OCD. And yet we still aim for 250+.. for no frigging reason.

You can turn up the contrast lever as long the whites don't turn pinkish or other weird things, and let it clip between 235-240 (but also check the individual colors and that you still have a linear dynamic range) You don't *have* to do it, but being aware of the possibility can come in handy on some occasions.
Yeah, making 240 your new reference white is way more sensible than aiming up to 255. You do get some subtle WTW content in if there is some in the movie, but do not butcher your TV's contrast ratio so badly for the others.
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post #4464 of 4545 Old 03-30-2017, 08:55 AM
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FYI, dropbox link to the pattern manual is broken.
TIA
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post #4465 of 4545 Old 04-06-2017, 03:36 AM
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Hi all, first of all a big thank you to all who collaborated on this!
Soon my new LG OLED 55C7 will arrive, and I was planning on calibrating some things using these files.
Now, my question is; what is the best way to calibrate my display? I'm going to use the internal media player and apps like Netflix, but will also hook-up a PS4 Pro (for Games and Blu-Ray discs), PS3 (same) and in the future a separate UHD Blu-ray Player. I was planning on playing the .mp4 files found in this thread with the internal media player and calibrate the display that way. Would that be correct, i.e. sufficient to properly calibrate it? Will it then also be properly calibrated for the external video sources?
And a final question; what calibrations, aside from the Basic Settings, would you advice me to do? (I do not own any calibration equipment nor intend to buy any.)
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post #4466 of 4545 Old 04-07-2017, 04:40 PM
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Projector Ultra HD Calibration

So I have an Epson EB-G7400UNL projector, lighting up a 190" Acoustically Transparent screen.

It works beautifully, and the Epson 4K Enhancement looks stunning.

I have calibrated the projector using the AVS HD Rec709 disc and have great greyscale, gamma and colour uniformity.

Question: What is the impact of calibrating under REC 709 when playing Ultra HD Blu-ray content, either in HDR or non HDR.

Does anyone have any experience/recommendations in this space

thanks

Matt
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post #4467 of 4545 Old 04-10-2017, 10:01 PM
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Hello,
I'm wondering if anyone has high resolution versions of the covers to this wonderful set found in this thread (Post 2432)
I can't send a private message to the member who posted them so I figured I would ask here.


Thanks in advance!
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post #4468 of 4545 Old 05-07-2017, 04:48 PM
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Can someone tell me the easiest and quickest way on this disc to get 0% IRE and 100% IRE full fields displayed so I can measure contrast?

See ya. Dave

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post #4469 of 4545 Old 05-07-2017, 06:26 PM
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Can someone tell me the easiest and quickest way on this disc to get 0% IRE and 100% IRE full fields displayed so I can measure contrast?
Not quite sure what you mean by your question. The 0% and 100% white patterns appear in various Chapters of the disc, including the Grayscale and Contrast sections.

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post #4470 of 4545 Old 05-08-2017, 10:16 AM
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Quote:
Originally Posted by Dominic Chan View Post
Not quite sure what you mean by your question. The 0% and 100% white patterns appear in various Chapters of the disc, including the Grayscale and Contrast sections.
I need the full field 0 and 100%. I've found plenty of non-full field (amplitude box framed by black background) easy enough. I found a full field 100%, but a full field 0% has been a bit elusive for me. I think I found a way to get that, but it was a bit hidden for me in colorhcfr, so I thought someone might know where I can easily find the 0%, that I might have missed.

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