v1.1.70 Beta version for Z9X 8K/Z30 PRO/Z3000 PRO/UHD8000

Everyone has their own tastes and makes their own choices, of course, but personally I prefer to watch a film as it was originally made. If I have an SDR film I watch it as it is without additional processing. If I have a 4k DV or HDR film I watch it natively without adding anything else or forcing the image with the VS 10 engine. On the other hand, if I go to a cinema I certainly wouldn't ask to set up extra processing.

 

I completely agree that use of the VS10 engine is purely a matter of taste.

For example, in my cinema I use VS10 full time to convert all content to LLDV. However, on my flatscreen I send all content natively - not because VS10 looks bad in any way, just that I think a native image is more appropriate.

However, what VS10 most certainly doesn't do is affect sharpness or cause the picture to be grey and washed out and lack contrast - so if people are experiencing those sort of symptoms, the cause is beyond the box. VS10 is just not able to do that.

 

IMO, a major benefit of using such Zidoo box is the conversion and upscale output (SDR -> DV and 2K -> 4K).

 

I've got this info screenshot if it's useful, otherwise I'll get the backup later at home.
IU is in B709 but when playback the output is in BT709 or BT2020 with same result.

 

However, I find that the processing is not satisfying when I set HDR or DV on SDR content, especially in films shot entirely on film. For example, in films like Jurassic Park, which was shot in 35 mm with three different emulsions: 50/100/500 ASA and therefore the film grain is visible, with VS10 processing the grain stands out in an indecent way especially in the highlights (e.g. . sky, streetlights etc etc...). For this reason I prefer to leave everything in native.

 

For the grain with VS10 on this 8K device (not on the old one), I also agree.......I deactivated everything VS10.......except the LLDV which forces it all alone !!!

 

I thought you output everything in LLDV?

 

YES and NO !!
Since I've been in manual mapping, I've made different settings depending on what I'm watching eg:
-All SDR = SDR with manual adjustment of hue/dark level/brightness level!
-All HDR10, HDR10+ = HDR10 AUTO //appropriate manual adjustment or auto with "maxi content light level and maxi frame-average light level"
-Dolby vision in 12-bit LLDV with manual adjustment etc.....
The projector just needs to be switched to HDR10 for LLDV and the rest is done automatically and in the end = best image quality for each format !!!!

 

Find hereby attached my Vertex2 config

 

I do not use vertex nor vs10. I prefer native image.

 

Which player is better Zidoo Z9X 8k or Dune HD Pro one 8k plus? Generally Zidoo 8k or Dune 8k in picture quality for Sdr, Hdr, Hdr +, DV? Or any other player?

 

On my previous set (Sony 950H) I liked the vs10 turning everything into Dolby Vision, and it looked very good across the board, but with my Bravia 9 I find I prefer everything that isn't natural Dolby Vision set to output as HDR10.

 

+1

 

The Vertex2 is a magnificent solution to handle two different displays from same source.

 

I've had a Vertex2 since I originally got my Z1000 Pro. A remarkable piece of kit which unlike what @jehangir kh is implying, it does not affect the PQ in any way at all

 

One issue I can see immediately is the Dolby Block with MaxPQ of 10,000nits.

I know we talked many times about this, and arguably that's ok for the JVC if you use Frame Adapt tone mapping, although you're losing most, if not all the Dolby Vision processing.

But if you have a TV hooked up to the other output then it's certainly not going to be ok for that because that TV is being given a full range signal and Samsungs are usually 1000nit max.

Also, some Samsungs, at least in my experience, don't react to MaxCLL/FALL only MaxMDL so for the Samsung to work correctly with an LLDV signal, MaxPQ in the Dolby block needs to be 1000 and the HDR message needs to be like this:



You seem to just be using the default HDR infoframe which has primaries of DCI-P3 and Max Luminance of 4000:



So you're not only sending a 10,000nit Dolby Block, you're interpreting it at the display as 4000nit and you're sending BT.2020 primaries and interpreting them as DCI-P3 so I'm not surprised things are awry!!

At the very least, you need to match what you tell VS10 to do in the Dolby block to what you're telling the TV is squirting out in the HDR message.

 

Thanks for the explanations. I've got a suitable config for the BenQ JP and previous Sharp TV, then I replaced it for Samsung QE75Q7. There were no noticeable issues with Z9Xpro until replaced by the new Z9X8K.
Anyway I'll workaround all these suggested changes and come back to you later.

 

Something must have changed somewhere because honestly there's no great difference in the way VS10 is output between the Pro and the 8K.

The 8K uses a newer Dolby library which added CMv4.0 and corrected some errors in the way trims are handled in LLDV, but VS10 itself, especially when we're talking about conversion from SDR/HDR to DV hasn't really changed - in that case trims and CM version are irrelevant.

I have an 8K and a Pro on test side by side here, both using the same (correct ) Vertex settings and both feeding through a Denon AVR to a Samsung flatscreen and if settings in the boxes are matched there is little to tell the difference between them.

But I might scrutinise that today if I get chance and see if I can see anything of note.

But certainly, when using a Vertex to spoof LLDV, you need to make sure the output nits match the display's capabilities and you have to match the Dolby Block to the HDR message in both levels and colour space otherwise you'll get all sorts of problems.

 

Good news, albeit embarrassing. The oversharpening issue was my Samsung TV applying sharpening. What is interesting is that I have my sharpening set to 0 on the TV and always have, yet for some reason switching between frame rates on the Zidoo resets my image settings on the TV. Odd but not in any way a Zidoo issue thankfully.

 

Not embarrassing at all - when things don't look the way or act the way they should it's always difficult to figure out just what the problem is. But usually a process of elimination lets you figure it out.