Dolby Vision now possible through MP4 Mux.

[RESET_9999]

Can you maybe make a picture or gif of what you are seeing exactly ?

I tried with my phone quickly but couldn't capture it... I have to leave for work now, but tonight I'll try again with the DSLR camera

[daffie]

OK mate. Will be 8 hours until it's dark here anyway so take your time

[SamuriHL]

No, he did not use his own pattern generator. He only used the internal ones.
He had Klein K-10-A. Which is a meter of about 7. 000 dollars worth.
With that equipment he did an autocal for DoVi without looking at the black level and by only using the internal patterns from LG.

So, you can imagine I'm done with paying for "professionals" who think they can calibrate.
Happened also with a plasma I owned about 8 years ago.

The Klein is great. It should have been paired with a high end spectro to profile it against your display. And they should have, at a bare minimum, had portrait displays g1 tpg for pattern generation. The lg internal tpg is not used by anyone calling themselves a professional because it can't be used to validate the calibration results for Dolby vision. You can't know if it was made worse or better without that!

Yes I'd be done, too. That's insane. Sorry you had that experience but I can attest that a good calibration can solve many issues and present an absolutely stunning picture on an lg oled. That's why I asked about reset's g5 and if he was going to calibrate it. But he's correct to wait until at least 100 hours as he's already seeing changes. Some good, some bad which is troubling.

Sent from my SM-S938U1 using Tapatalk

[daffie]

I have to admit the picture quality for Dovi is already great out of the box.

But indeed I hoped a proper qualibration would make it even better.

Sadly that was not the case with my calibrator.

Edit:
I just looked up my conversation with him.
For the profiling he used " I1pro " and he also used a "murideo" signal generator.
No idea if that is any good or not?

Looking up some info about that I'm starting to doubt myself if he used his own patterns or not...

But the end conclusion is the same though: he did NOT check the black level because I know these patterns. And the black level was far worse than pre-calibration. Of these 2 things I'm 100% sure.

[deadchip12]

But I noticed something very bad. In dark scenes, DV has some sort of ''falling'' noise/grain with diagonal lines. Not sure how to describe it. It's very noticeable in the 10% grayscale file, and even at normal viewing distance.
https://drive.google.com/drive/u/1/fold ... 2ZGhSXZk_D

I saw falling diagonal lines on my c8 and c9 oled too a long time ago. Not sure if it is the same kind as the ones on the g5. Could you check your c2 again if you see those lines?
Users and reviewers reported say they saw diagonal lines even in bright scenes since the g4. There's a reddit thread about the issue here: https://www.reddit.com/r/LGOLED/s/lLTwRgQtyw
And also there's a thread about another issue. You may want to check for it on the g5: https://www.avsforum.com/threads/lg-g4- ... 65/page-12

[RESET_9999]

I saw falling diagonal lines on my c8 and c9 oled too a long time ago. Not sure if it is the same kind as the ones on the g5. Could you check your c2 again if you see those lines?
Users and reviewers reported say they saw diagonal lines even in bright scenes since the g4. There's a reddit thread about the issue here: https://www.reddit.com/r/LGOLED/s/lLTwRgQtyw
And also there's a thread about another issue. You may want to check for it on the g5: https://www.avsforum.com/threads/lg-g4- ... 65/page-12

I don't remember how it was on the C8, but on the C2, I definitely never noticed anything like this. I’ll check again once it’s set up in my bedroom.
On my end, this only happens in dark scenes, and the 10% grayscale pattern looks terrible in Dolby Vision. At 20% and above, it's fine.
Thankfully, it’s much less noticeable in actual content.

At least now the DV black clipping is the same as the C2 for cmv4.0 and cmv2.9 is greatly improved. No way I could see 69-70 with cmv2.9 10 000nits and 4000nits MDL on the C2

[kazuma]

does the lacking of DTS on the G5 affecting the ugoos/avr receiver? or only build-inn apps?

[RESET_9999]

Not if the ugoos is connected directly to the AVR.
Strangely the G5 edid says DTS support but I tried and it doesn't work(at least in plex).

Code: Select all

 Audio Data Block:
    Linear PCM:
      Max channels: 8
      Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
      Supported sample sizes (bits): 24 20 16
    AC-3:
      Max channels: 6
      Supported sample rates (kHz): 48 44.1 32
      Maximum bit rate: 640 kb/s
    DTS:
      Max channels: 6
      Supported sample rates (kHz): 96 88.2 48 44.1
      Maximum bit rate: 1536 kb/s
    One Bit Audio:
      Max channels: 6
      Supported sample rates (kHz): 44.1
      Audio Format Code dependent value: 0x00
    Enhanced AC-3 (DD+):
      Max channels: 8
      Supported sample rates (kHz): 48 44.1
      Supports Joint Object Coding
    DTS-HD:
      Max channels: 8
      Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1
      Audio Format Code dependent value: 0x01
    MAT (MLP):
      Max channels: 8
      Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1
      Supports Dolby TrueHD, object audio PCM and channel-based PCM
      Hash calculation required for object audio PCM or channel-based PCM

Dovi block:

Code: Select all

  Vendor-Specific Video Data Block (Dolby), OUI 00-D0-46:
    Version: 2 (12 bytes)
    DM Version: 4.x
    Backlt Min Luma: 75 cd/m^2
    Interface: Standard + Low-Latency + Low-Latency-HDMI
    Supports 10b 12b 444: 12 bit
    Target Min PQ v2: 0 (0.00000000 cd/m^2)
    Target Max PQ v2: 3485 (2607 cd/m^2)
    Unique Rx, Ry: 0.68750000, 0.31250000
    Unique Gx, Gy: 0.24609375, 0.70312500
    Unique Bx, By: 0.14843750, 0.05078125

[SamuriHL]

Edit:
I just looked up my conversation with him.
For the profiling he used " I1pro " and he also used a "murideo" signal generator.
No idea if that is any good or not?

Looking up some info about that I'm starting to doubt myself if he used his own patterns or not...

But the end conclusion is the same though: he did NOT check the black level because I know these patterns. And the black level was far worse than pre-calibration. Of these 2 things I'm 100% sure.

Murideo is fine. It handles everything it needs to depending on the model. The fact that he didn't use that to check the calibration is concerning, though. i1pro is not a professional level spectro. I have an i1pro3 and while it's good enough for my personal use I sure as hell wouldn't charge anyone for using it to calibrate their stuff. The Klein is certainly good though.

[SamuriHL]

I don't remember how it was on the C8, but on the C2, I definitely never noticed anything like this. I’ll check again once it’s set up in my bedroom.
On my end, this only happens in dark scenes, and the 10% grayscale pattern looks terrible in Dolby Vision. At 20% and above, it's fine.
Thankfully, it’s much less noticeable in actual content.

At least now the DV black clipping is the same as the C2 for cmv4.0 and cmv2.9 is greatly improved. No way I could see 69-70 with cmv2.9 10 000nits and 4000nits MDL on the C2

As you know this'll likely improve as you put some more hours on it. Once you hit 100 hours and calibrate it maybe most of this goes away with any luck.

[RESET_9999]

As you know this'll likely improve as you put some more hours on it. Once you hit 100 hours and calibrate it maybe most of this goes away with any luck.

I'm curious how the black crush is on your G2? Is it like my C2 crushed in cmv2.9 and way worse with 4000/10000 MDL ?
Is it perfect in cmv4.0?

[SamuriHL]

I'm curious how the black crush is on your G2? Is it like my C2 crushed in cmv2.9 and way worse with 4000/10000 MDL ?
Is it perfect in cmv4.0?

It's not perfect, no but it's not bad. I haven't checked it in a year. It's actually on my todo list. The last time I calibrated it I didn't do it the normal way as I was having issues with a new laptop at the time and had to use software I don't normally use. It came out decent so I left it. I need to redo it when I have time. I can throw spears and munsil in this weekend which as I said I need to do anyway. But I've not had any real issues after calibration. It is definitely worse in cmv2.9, though.

[daffie]

@RESET

You got that picture of the greyscale 10%?

[daffie]

I saw falling diagonal lines on my c8 and c9 oled too a long time ago. Not sure if it is the same kind as the ones on the g5. Could you check your c2 again if you see those lines?
Users and reviewers reported say they saw diagonal lines even in bright scenes since the g4. There's a reddit thread about the issue here: https://www.reddit.com/r/LGOLED/s/lLTwRgQtyw
And also there's a thread about another issue. You may want to check for it on the g5: https://www.avsforum.com/threads/lg-g4- ... 65/page-12

No way I could see 69-70 with cmv2.9 10 000nits and 4000nits MDL on the C2

Really strange that this is better on my G1 uncalibrated.
I can see 69 faint on cmv2.9 4000 nits MDL.
And your test file called "cmv2.9 4000 nits MDL with Trims" I can see even 68 very faint.

I'm guessing something really changed starting from the c2/g2 series compared to c1/g1

[RESET_9999]

@RESET

You got that picture of the greyscale 10%?

in 1h, I'm not home yet.