Samsung 4K UHD Blu-ray Player UBD-K8500

[ray0414]

Originally Posted by Deciazulado

mmm Why don't you paste that info here, instead of sending members away to another site . Since you're here.. :>

Because..


1. I was at work all day so I couldnt.


2. Way too much to go thru and repost here. This thread in particular is about the player, not what hdr is in general and yes I suppose you could very sloppily sum it up in a couple sentences but if you there it will be more thorough.

[Deciazulado]

Well I meant you can aways do a thread here
Thanks for the info/links in any case.

[Robert Zohn]

Originally Posted by Deciazulado

Ok.

Blu-rays and HDTV are 1080 x 1920 pixels 24p-60i and are in what's now called SDR Standard Dynamic Range, which is video coded in 8-bits (from level 16-235 0 black to max white and this 235 white is usually calibrated to be at 100 cd/m2 AKA Nits (29 ft*L) with any overshoots to 255 being 120 Nits (35 ft*L) and using a color space (gamut, possible maximum saturation) defined by the rec.709/sRGB RGB primaries (a smallish color triangle). Also this signal is viewed on a grey tone distribution that changes at 2.2 -2.4 gamma (kind of a steep long slope)

UHDs on the other hand are 2160 x 3840 pixels (so can be viewed twice as tall and twice as wide/sharp, potentially probably better than most Cinemas) 24p-60p <I assume there will be some awesome sports and other content in the future) but instead are encoded in what's called HDR High Dynamic Range (or more contrast tones possibles from brightest to darkest). First, it's (right now) 10 bits which gives you 4 more times the gradations, and because of this and advances in display technology, you can pack more highlights and deeper shadows, which would be now from level 64-940 0 black to max white and this 940 max white would be calibrated to be at 10000 nits (eventually, when TVs can do that). These levels are also packed in a slightly different curve/slope than on gamma 2.2 video, called the PQ curve, which is not straight as the gamma ones, to improve perceptual smoothness of levels so HDR TVs apply this curve to the HDR signal. On top of that UHDs color has an expanded color gamut (a much bigger RGB color triangle which makes more saturated color possible) than rec.709/sRGB, called rec.2020, so as TV technology advances more colors can be reproduced. (Right now new UHD TVs are achieving whats called P3 color which is ~10-15% more saturated than rec.709)

So UHD HDR is made up of 4 things: more resolution, more contrast range/tones with increased highlights and shadows, finer gradations between those tones, and more colors possible.

Thanks for the nicely written and very educational post!

Hope you don't mind my adding the value of EOTF, Electro-Optical Transfer Function or PQ "Perceptual Quantizer" which replaces the "Analog Gamma", which typically was recommended to be set at 2.2 for daytime and 2.4 or bt.1886 for low ambient light viewing. The Gamma standard has been used since TV was invented.

HDR content is accompanied by WCG, commonly the P3 color gamut, 10-bit panels and last but not least important to the new TV System is how we handle the luminance range, which is now called PQ, aka, Perceptual Quantizer.

PQ mimics how the human eye/brain sees and so we can see more detail in the low luminance scale of the image. This is how our vision system works as we can see in low light better than high luminance.

Thanks video advocates who demanded more than just 4K resolution and to Dolby Labs and SMPTE for adopting and even developing many of the standards we have for our new TV System. The new TV System has everything we need to deliver stunning picture quality. HDR, WCG, 10-bit panels and PQ have the ability to render digital image performance like we have never seen.

[RockyIII]

Originally Posted by Deciazulado

Ok.

Blu-rays and HDTV are 1080 x 1920 pixels 24p-60i and are in what's now called SDR Standard Dynamic Range, which is video coded in 8-bits (from level 16-235 0 black to max white and this 235 white is usually calibrated to be at 100 cd/m2 AKA Nits (29 ft*L) with any overshoots to 255 being 120 Nits (35 ft*L) and using a color space (gamut, possible maximum saturation) defined by the rec.709/sRGB RGB primaries (a smallish color triangle). Also this signal is viewed on a grey tone distribution that changes at 2.2 -2.4 gamma (kind of a steep long slope)

UHDs on the other hand are 2160 x 3840 pixels (so can be viewed twice as tall and twice as wide/sharp, potentially probably better than most Cinemas) 24p-60p <I assume there will be some awesome sports and other content in the future) but instead are encoded in what's called HDR High Dynamic Range (or more contrast tones possibles from brightest to darkest). First, it's (right now) 10 bits which gives you 4 more times the gradations, and because of this and advances in display technology, you can pack more highlights and deeper shadows, which would be now from level 64-940 0 black to max white and this 940 max white would be calibrated to be at 10000 nits (eventually, when TVs can do that). These levels are also packed in a slightly different curve/slope than on gamma 2.2 video, called the PQ curve, which is not straight as the gamma ones, to improve perceptual smoothness of levels so HDR TVs apply this curve to the HDR signal. On top of that UHDs color has an expanded color gamut (a much bigger RGB color triangle which makes more saturated color possible) than rec.709/sRGB, called rec.2020, so as TV technology advances more colors can be reproduced. (Right now new UHD TVs are achieving whats called P3 color which is ~10-15% more saturated than rec.709)

So UHD HDR is made up of 4 things: more resolution, more contrast range/tones with increased highlights and shadows, finer gradations between those tones, and more colors possible.

I get that. But having said all that, what are all these debates on HDR to SDR conversion about? Is all that about the UHD Samsung player downconverting HDR content to SDR? I am confused

Sent from my SAMSUNG-SGH-I577 using Tapatalk

[katiehlvr2]

Does this player seem to work ok with non4k receivers?
Using the audio out hdmi port?

[FilmFreakosaurus]

Originally Posted by katiehlvr2

Does this player seem to work ok with non4k receivers?
Using the audio out hdmi port?

Yes, use and set up HDMI Port 2 to your receiver for audio decoding and HDMI port 1 to your HDCP 2.2 compliant UHD display (at least one HDMI input on the TV must be compliant and you must use that particular port for the player).

The Sammy defaults to PCM audio output, so you need to switch it to bitstream and you must leave secondary audio off.

[Deciazulado]

Originally Posted by RockyIII

I get that. But having said all that, what are all these debates on HDR to SDR conversion about? Is all that about the UHD Samsung player downconverting HDR content to SDR? I am confused

Yes they are about that, when you hook up a UHD player to a non HDR TV (a TV without HDMI 2.0a, only HDMI 2.0) it "converts" the HDR into SDR output.

[Chrissaywer]

does anyone know when a more cheaper UHD player will come out? I'm buying an UHD tv this weekend and going to start buying UHD movies as well but $400 for a player is way more then I want to spend on a player.

[ray0414]

Originally Posted by Chrissaywer

does anyone know when a more cheaper UHD player will come out? I'm buying an UHD tv this weekend and going to start buying UHD movies as well but $400 for a player is way more then I want to spend on a player.

Nope. This is the cheapest. You may be able to find used or open box online. When the oppo 4k player comes out in the fall, alot of people (myself included), will probably be selling these for around $200 or so.

[Falaskan]

Is everyones player working fine since the update? I'm not so sure about mine

[scorpiontail60]

Does anyone know what the IP addresses are for the servers the player checks for updates on?

It doesn't matter how many times I hit "Do not update," this stupid thing will not **** off with wanting me to update every time I return to the main menu.

I would like to block Samsung's update servers in my router.

[Newport, Ohio]

Hi Everyone, I have been casually reading this thread, but finally pulled the trigger on the K8500 and it will be here tomorrow. It will be hooked up to a Samsung UN65JU7100 and I am just curious if there are any settings I need to change before testing it out. I know some are for/against the latest update, but what else do I need to know before I test this bad boy out? Thanks in advance!

[RockyIII]

Originally Posted by Falaskan

Is everyones player working fine since the update? I'm not so sure about mine

what are you experiencing exactly?

Sent from my SAMSUNG-SGH-I577 using Tapatalk

[SHOCKWAVE6464]

Originally Posted by SHOCKWAVE6464

I know I'm a little late but here is a picture of the back of an HTR-3067:

[Show spoiler]

It includes "HDMI® (4 in/1 out) with 4K Ultra HD pass-through for super high resolution images".

Can someone help me with this please?

[Penton-Man]

Originally Posted by Robert Zohn

Thanks for the nicely written and very educational post!

Hope you don't mind my adding the value of EOTF, Electro-Optical Transfer Function or PQ "Perceptual Quantizer" which replaces the "Analog Gamma", which typically was recommended to be set at 2.2 for daytime and 2.4 or bt.1886 for low ambient light viewing. The Gamma standard has been used since TV was invented.

HDR content is accompanied by WCG, commonly the P3 color gamut, 10-bit panels and last but not least important to the new TV System is how we handle the luminance range, which is now called PQ, aka, Perceptual Quantizer.

PQ mimics how the human eye/brain sees and so we can see more detail in the low luminance scale of the image. This is how our vision system works as we can see in low light better than high luminance.

Thanks video advocates who demanded more than just 4K resolution and to Dolby Labs and SMPTE for adopting and even developing many of the standards we have for our new TV System. The new TV System has everything we need to deliver stunning picture quality. HDR, WCG, 10-bit panels and PQ have the ability to render digital image performance like we have never seen.

In referring to UHD HDR TVs in general, don’t forget about the HLG transfer function because live productions, especially sports, will drive HDR tv sales (your thing)…..which could have potential in enabling interest in consumers’ purchasing Ultra HD Blu-ray players and discs (Blu-ray.com’s thing). Although it would be possible to transcode ST 2084 (PQ curve) to HLG,



currently, content creators involved in live production are liking the idea of the HLG transfer function from the get-go, end to end. So it’s highly likely it will be recommended that future TVs (worldwide) support both PQ and HLG approaches due to the benefits of each respective HDR solution. Of course this will require some work to implement, e.g.



P.S.
For the sake of your followers attending the Value Electronics shootout, I hope you are successful in procuring the type of source material I directed you to because a single pixel on the LG OLED can go to full brightness whereas the LCDs are challenged in that regard.

[Penton-Man]

Originally Posted by Deciazulado

Yes they are about that, when you hook up a UHD player to a non HDR TV (a TV without HDMI 2.0a, only HDMI 2.0) it "converts" the HDR into SDR output.

On the general topic of HDMI interfaces for video support, looking ahead….you’ll need something beyond HDMI 2.0a for SMPTE ST 2094.

HDMI 2.1 sounds like a good phrase/number.

[Penton-Man]

Originally Posted by Penton-Man

SMPTE ST 2094.

(Full report finished and posted several days later ->https://forum.blu-ray.com/showthread...e#post12085519)

[RockyIII]

Here is something interesting that happened to me after I set up my Sammy player. I sign in on my Netflix account (I have the plan with UHD programs included) and I go play one of the Netflix titles in UHD. I get audio but no video and a message on the screen that says that I dont have a UHD tv....I dont get it...isnt the player supposed to downscale to 1080 when a 4K TV or projctor is not connected??

[RockyIII]

Bump...
I thought the player would automatically downscale to HD 1080 when the TV (or projector) is not 4K-ready. Is that incorrect?

[ray0414]

Originally Posted by RockyIII

Here is something interesting that happened to me after I set up my Sammy player. I sign in on my Netflix account (I have the plan with UHD programs included) and I go play one of the Netflix titles in UHD. I get audio but no video and a message on the screen that says that I dont have a UHD tv....I dont get it...isnt the player supposed to downscale to 1080 when a 4K TV or projctor is not connected??

Make sure you have the player output set to auto or 4k in the settings. If you have output at 1080p, it changes everything to 1080p