Setting Contrast/Brightness with Blu-ray vs ATV - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 2Likes
  • 1 Post By Dominic Chan
  • 1 Post By Anger.miki
 
Thread Tools
post #1 of 4 Old 03-14-2020, 02:22 PM - Thread Starter
Member
 
Join Date: Jan 2020
Posts: 23
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Liked: 2
Setting Contrast/Brightness with Blu-ray vs ATV

Hello,
I use an Apple TV 4K for all my media watching. Using YCbCr which is 16-235 output from it does anyone know if that is accurate for displaying mkv and other video patterns to set contrast and brightness? I ask as I’m having a difficult time setting contrast on my Samsung qled.
Or do I need to go out and buy a Blu-ray player to set these (I’d prefer not to as i won’t use it afterwards).

Thanks
Lentash is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 03-14-2020, 03:19 PM
AVS Forum Special Member
 
Rolls-Royce's Avatar
 
Join Date: Apr 2003
Location: Victorville, CA
Posts: 4,580
Mentioned: 45 Post(s)
Tagged: 0 Thread(s)
Quoted: 1371 Post(s)
Liked: 1451
The Apple TV has issues. See here: https://www.avsforum.com/forum/139-d...cy-thread.html

...Royce...

"I never drink...wine."
Bela Lugosi, DRACULA, 1931
Rolls-Royce is offline  
post #3 of 4 Old 03-22-2020, 05:00 PM
AVS Forum Special Member
 
Join Date: Dec 2014
Location: Mississauga, ON, Canada
Posts: 8,084
Mentioned: 170 Post(s)
Tagged: 0 Thread(s)
Quoted: 5797 Post(s)
Liked: 2324
Quote:
Originally Posted by Lentash View Post
Hello,
I use an Apple TV 4K for all my media watching. Using YCbCr which is 16-235 output from it does anyone know if that is accurate for displaying mkv and other video patterns to set contrast and brightness? I ask as I’m having a difficult time setting contrast on my Samsung qled.
Or do I need to go out and buy a Blu-ray player to set these (I’d prefer not to as i won’t use it afterwards).

Thanks
If you use a Blu-ray player to set contrast and brightness, the settings will only be valid when you’re watching Blu-ray.

The usual rule is to use the same device to do calibration, as the device you’ll be using to watch media. In this particular case, two wrongs do make a right.
Rolls-Royce likes this.
Dominic Chan is offline  
Sponsored Links
Advertisement
 
post #4 of 4 Old 03-26-2020, 04:20 AM
Advanced Member
 
Anger.miki's Avatar
 
Join Date: Jan 2018
Posts: 830
Mentioned: 45 Post(s)
Tagged: 0 Thread(s)
Quoted: 523 Post(s)
Liked: 614
Apple TV 4K displays a darker picture compared to the reference. It needs a lower gamma settings. For example, while a bit perfect source returns an average gamma of 2.40, ATV4K returns 2.43. That needs to be calibrated separately.
Rolls-Royce likes this.

T.U.C. Master | TVs: Pioneer PDP-LX5090H, LG OLED55C8PLA | AV Receiver: Pioneer VSX-921 | BD Player: Panasonic DMP-BDT260EG | External LUT box: Entertainment Experience eeColor | Softwares: Light Illusion Lightspace HTP, CM Enthusiast, HCFR, DisplayCAL | Probes: Klein K10-A, Jeti spectraval 1501, X-Rite i1 Display Pro OEM Rev. B-02 | Test Pattern Generator: Riccardo Biasiotto’s PGenerator (RPi)
Anger.miki is offline  
Sponsored Links
Advertisement
 
Reply Display Calibration

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off