Originally Posted by markswift2003
Some more on frame-rates.
These are the results for the 1295 players I have at 2K & 4K in the various modes:
Yesterday my new Samsung UE82NU8009 (https://www.samsung.com/de/tvs/uhd-p...E82NU8009TXZG/
) arrived and it was time to finally exchange the old Dune D1 with the Dune Pro 4k.
First of all I want to point out that I´m not into the Chroma subsampling stuff, I don´t have the slightest clue what this is all about.
is that I realize one microstutter every single min. (I can´t tell you the exact period between those stutters) on 4k 23.976fps h265 HDR films played with the system-player; furthermore I realized 2 DUNE-reports on that chroma subsampling thing, 10bit 4:4:4 and 10bit 4:2:2. No matter what is shown the micro stuttering is present. I read about a hardware restriction of the SOC 1295, so now I come to the point where I have to decide to sell the unit again or not. BTW: I haven`t checked 1080p movies so far whether they are stutterfree or not.
One question about the quoted stuff above: Am I understand the data right that there is no stutter with an output framrate smaller than 23.976 (e.g. 23.973 with a green color)? If my guess is right I'm definitely interested in the following: why does a 23.978 frame output results in a microstutter while a 23.973 frame output does not ?!?
My additional questions are:
1. Can any1 give me a short overwiew/introdution in that chroma subsampling stuff? Wikipedia is too complicate for me. I don`t want to understand any technical detail but what is relevant to maybe avoid selfmade errors in the preferences. Are the DUNE factory settings ideal? I haven't changed anything so far.
2. Will there be any chance to install a firmware that is able to show stutter-free 4k (h265?) movies? What do you suppose?
3. I played a little bit with the preferenes in the Android menu. Changed HDMI-Mode from 1.4 to 2.0, set HDMI Range to Full Range. Is that ok? What should I change, too? What should I not
change under no circumstances?
4. Whirlpool reported a stutterfree play on device named Zidoo Z9s with 23.974 fps. How is this possible while a movie has 23.976 fps?!
5. While 1080p movies have a "normal" brightness on the Dune HD Pro 4k, 2160p/h265/HDR-movies seem to have a lower brightness. I have to increase all relevant preferences to the max on my Samsung to let it look quite ok/normal. Can any1 explain this?
So you see, I'm a little bit confused with all this stuff. It`s boring to mention that the D1 was a player, which played all my movies in a perfect way.
My only needs are: stutterfree play of 1080p and 2160p (with or without HDR) of films with a h264 or h265 codec. No apps, no Kodi, no zappiti, no other stuff.
Thank you in advance for your answers.