Can’t set video output to Dolby Vision 60hz?

[cyb3rdud3]

Because most people don't like the soap opera effect of higher frame rates...It can look weird, but also think of the millions of material already in lower than 60Hz shot....It is just not necessary, although I must admit that I do like it...

 

[scoresman]

30Hz is only good for movies in 30Hz...Movies in 24Hz require 24Hz and in 25Hz require 25Hz...But then either of those three refresh rates are rubbish when you like a game or another app which should really run at 60Hz....

And that is the point, just auto switch and let the tv handle it Apple....Having to fiddle about with settings each time I'd want to watch something is just not on in 2017.....All other sources can handle this easily...

Agree. It's just annoying that an iTunes movie says it's in Dolby Vision only to have Apple TV output it at HDR 60hz

 

[MBimmer]

So guys i believe most already know that the difference between HDR10 and dolby vision is the colour depth (10 vs 12bit).
If you feel like a geek then dive into the dolby format standard; i will leave it below as well.

Sill puzzled by why all 2016 tvs can only display dolby vision @ 30hz while all 2017 can do DV @60hz.

This is also interesting....
”Things have evolved through 2017 on the Dolby Vision front. Originally Dolby said that you needed to have a hardware decoder in your TV, but things have softened slightly, with Sony confirming updates to support Dolby Vision on TVs that previously didn't, allowing DV support as a software solution rather than hardware.”


”Dolby Vision
Dolby Vision is an HDR format from Dolby Laboratories that can be optionally supported by Ultra HD Blu-ray discs and streaming video services. Dolby Vision is a proprietary format and Dolby SVP of Business Giles Baker has stated that the royalty cost for Dolby Vision is less than $3 per TV. Dolby Vision includes the Perceptual Quantizer (SMPTE ST 2084) electro-optical transfer function, up to 4K resolution, and a wide-gamut color space (ITU-R Rec. 2020).

The main two differences from HDR10 is that Dolby Vision has a 12-bit color depth and dynamic metadata. The colour depth allows up to 10,000-nit maximum brightness (mastered to 4,000-nit in practice). It can encode mastering display colorimetry information using static metadata (SMPTE ST 2086) but also provide dynamic metadata (SMPTE ST 2094-10, Dolby format) for each scene. Examples of Ultra HD (UHD) TVs that support Dolby Vision include LG, TCL, and Vizio, although their displays are only capable of 10-bit color and 800 to 1000 nits luminance”

https://en.m.wikipedia.org/wiki/High-dynamic-range_video


- SMPTE ST 2094 Standard:

https://www.smpte.org/sites/default/files/2017-01-12-ST-2094-Borg-V2-Handout.pdf

 

[priitv8]

... The colour depth allows up to 10,000-nit maximum brightness (mastered to 4,000-nit in practice). ...

Colour depth has nothing to do with the brightness that can be encoded. SMPTE ST 2084 is an absolute standard with clearly set luminance boundaries. This means that 10000 nits are also max defined luminance in 10-bit encoding. Pixel value of 1023 shall make the display emit 10000 nits. There are none that capable existing at the moment, though. That's why most HDR material is mastered at 1000 (max of the more affordable Sony OLED mastering display) or 4000 (max of the Dolby Pulsar mastering display).

 

[Oledlover]

i don’t know why but I don’t have the option of selecting Dolby Vision in the Apple TV menu. It says it works with 30hz but not 60. Picture quality is full of clipping when I select this. I’m pretty sure my TV supports it (LG B6 OLED) and I’m using high speed with Ethernet cables.

Anyone else having this issue? Also, why isn’t the Apple TV capable of playing hdr or Dolby Vision depending on the video source? You can only do one or the other

The hardware in the 2016 Models can’t be upgraded via software,
To Dolby Vision @ 60Hz.

 

[MBimmer]

The hardware in the 2016 Models can’t be upgraded via software,
To Dolby Vision @ 60Hz.

Do 2017 TVs all have 12 bit panel? are do they relay on software to support 60hz?

 

[Oledlover]

Do 2017 TVs all have 12 bit panel? are do they relay on software to support 60hz?

Yes, the 2017 LG OLEDs have Dolby Vision @60Hz in the mother board.

 

[Aaronq]

[doublepost=1509200085][/doublepost]Maybe this will help. This has been driving me crazy as well. I've got a 2016 LG LED TV (75UH8500), and Dolby Vision 60HZ is not an option in the Apple TV setup. But maybe this will help. iTunes movies are either 24fps or 30fps (according to Apple). And the Netflix app on the TV outputs Dolby Vision between 25fps and 30fps according to Netflix. LG was useless to speak with. So, I would think Dolby Vision at 60HZ only matters for the Apple TV menus etc. So in theory if you set the Apple TV to 30HZ the iTunes movies should be just fine. Is that correct? If so, my other question would be is it best to set the Apple TV to 30HZ to view movies shot below 30FPS? Basically, is it better/safer to have the HZ higher than the FPS, or does that create other issues?

I’ve got the same TV (60” model) and of cours the same issue. Thought it might be the TV but I understand this tv is capable of 60hz in DV. That said, this is no longer (FINALLY) an issue with the latest update from Apple. Enable match dynamic range and refresh rate. Set your Apple menu to whatever you want now! I keep mine at 4k HDR 60hz to keep the menu fast and looking good. When playing movies or Netflix it now auto switches to Dolby Vision, etc