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Does Xperia 1 support Dolby Vision?

Talent
Message 1 of 18
858 Views
Message 1 of 18

Does Xperia 1 support Dolby Vision?

Screenshot_20190708-224304.png

NTT Docomo says Xperia 1 supports HDR10, HLG, and Dolby vision, is it true?

 

https://www.nttdocomo.co.jp/product/smart_phone/so03l/spec.html?icid=CRP_PRD_so03l_to_CRP_PRD_so03l_...

17 REPLIES 17
Pioneer
Message 2 of 18
843 Views
Message 2 of 18

Re: Does Xperia 1 support Dolby Vision?

Hi @ds2mph ;

 

According to the Xperia 1 specifications that can not be true because the screen uses a 10bit tonal gradation (8bit with 2bit smoothing) and the Dolby Vision uses 12bit.

Besides, according to the Dolby site the phones with Dolby Vision are: https://www.dolby.com/us/en/technologies/mobile/dolby-vision.html.

Talent
Message 3 of 18
833 Views
Message 3 of 18

Re: Does Xperia 1 support Dolby Vision?

Does it mean LG G6 has 12-bit panel and uses a 12-bit tonal gradation?

Pioneer
Message 4 of 18
827 Views
Message 4 of 18

Re: Does Xperia 1 support Dolby Vision?

@ds2mph ;

 

I don't have much knowledge in LG phones but if Dolby says they are complient with Dolby Vision then I suppose so (but only when viewing Dolby Vision content).

In the LG G6 webpage what is said is that the content must also be recorded in Dolby Vision format (or HDR10) to take advantage of it, so probably in normal viewing you don't have the full color depth.

Talent
Message 5 of 18
792 Views
Message 5 of 18

Re: Does Xperia 1 support Dolby Vision?

I think that phones on the list (LG G6, iphone8,xs,xr) can just play HDR videos with Dolby vision, not fully support 12-bit because they seems to have 8-bit panel.

 

Now I wonder whether NTT Docomo wrote it by mistake, or not. I'm waiting for a reply from official staffs @Jonas @Martin

Thanks for your reply @NunoSEN2

 

By the way, how did you tag me? I can't tag someone @NunoSEN2

 

 

Highlighted
Moderator
Message 6 of 18
762 Views
Message 6 of 18

Re: Does Xperia 1 support Dolby Vision?


@NunoSEN2 wrote:

Hi @ds2mph ;

 

According to the Xperia 1 specifications that can not be true because the screen uses a 10bit tonal gradation (8bit with 2bit smoothing) and the Dolby Vision uses 12bit.

Besides, according to the Dolby site the phones with Dolby Vision are: https://www.dolby.com/us/en/technologies/mobile/dolby-vision.html.


Looks like that list needs a bit of updating tbh.

I'm pretty sure more devices than that are capable of DV



Moderators are not affiliated with, or work for Sony Mobile, and their posts represent their own opinions and views.
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Pioneer
Message 7 of 18
720 Views
Message 7 of 18

Re: Does Xperia 1 support Dolby Vision?


@ds2mph wrote:

I think that phones on the list (LG G6, iphone8,xs,xr) can just play HDR videos with Dolby vision, not fully support 12-bit because they seems to have 8-bit panel.

 

Now I wonder whether NTT Docomo wrote it by mistake, or not. I'm waiting for a reply from official staffs @Jonas @Martin

Thanks for your reply @NunoSEN2

 

By the way, how did you tag me? I can't tag someone @NunoSEN2

 

 


@ds2mph , I think you need to be a Pioneer, Moderator or Xperia Support Staff to tag Forum users.

Apprentice
Message 8 of 18
681 Views
Message 8 of 18

Re: Does Xperia 1 support Dolby Vision?

dolby vision has several DV profiles for TVs, Mobile Phones, Tablets and cinemas.

12 bit is only supported in single cases for cinema movies, but not really for DV TVs, they only support 10bit display (although the processors can handle 12 bit and transfer it to the 10bit (or rahter "9.5bit" panels with about 500 million different colors.)

what the xperia one does, is taking a software HDR Signal and then it's putting it it to a display with a 50% BT2020 color space in case of the XF90 Dolby Vision enabled TV.

in my definition that phone could support DV from the bits as processing should be quite possible and thats the only thing what dolby is certifying, they dont care about the display as there are no tv or smartphone displays that are higher than 10bit on the market.

maybe dolby just needs more time to certify that phone as DV compatible and to create a phone specifiv DV profile.

Pioneer
Message 9 of 18
675 Views
Message 9 of 18

Re: Does Xperia 1 support Dolby Vision?

@digitalray78 ;

 

I think any display to be Dolby Vision compliant must support a 12bit color depth, please read here: https://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-white-paper.pdf,

or here specific for mobiles HDR information: https://www.androidauthority.com/mobile-hdr-necessary-800786/

Apprentice
Message 10 of 18
665 Views
Message 10 of 18

Re: Does Xperia 1 support Dolby Vision?

"The single layer HEVC Main-10 profile of Dolby Vision can be decoded by a standard HEVC decoder, then post-processed using a Dolby Vision module to produce the full range 12 bit Dolby Vision signal. "

 

So.. the DV Signal is 10 bit, it get's 12bit when the final consumer product processor it to it's color space with the "dolby vision module". and then it gets projected onto whatever display, in consumer times today these are 10bit displays for tv and smartphones.

 

the XF90 TV Display can output 1000 nits total brightness (about 600 in usual scenes where the whole screen is not total white) but only 500 million different colors, thats half of 10 bit capability.

 

so you are right, for a DV certification, the Xperia One needs to be able to produce a 12bit signal in its processor . The Xperia One supports BT2020 color space, although BT2020 can be 10bit or 12bit.

 

so i guess we are left with originally 10bit 2020 HDR10 Signals that are not even DV processed to 12bit on the Xperia One and are either way displayed on it's not even 10bit display, which makes sense in the end if the displays can not handle 12bit or even a full 10 bit anyway (xp one display is a 8+2 FRC Display, more info here https://www.newsshooter.com/2019/03/07/sony-xperia-1-worlds-first-219-cinemawide-4k-hdr-oled-display...)

 

read this: https://referencehometheater.com/2018/commentary/sony-x900f-image-quality-review/

and remember that the XF90 is officially Dolby Vision certified and enabled.

 

a nice german article for translation purposes: https://www.heimkinoraum.de/tests/dolby-vision-vs-uhd-premium-hdr10-166