v1.2.22, v1.2.22_G Beta version for Z9X 8K/Z30 PRO/Z3000 PRO/UHD8000 (UPDATE)

Can it be so that HDMI is limited to DSD64 on the ZIDOO side, not the AVR? (Unfortunately, I can't test it, since mine AVR also has such limitation). In that case, no matter RAW or AUTO is selected, since limitation is on source side, DSD>64 will be always converted to PCM?

 

Curious as to why it would matter to you, given your amp?

Could be the source is limited to dsd64, or could be the amp some (most) are using. @Markswift2003 has already said he's going to double check re the source.

 

If I remember.

There's much more interesting stuff going on at the moment

(nothing to do with white levels before you ask )

 

New devices coming out?

 

No, not that exciting I'm afraid.

 

Hahahaha, I don't think you mean it! You wrote that more interesting things are happening... I wonder what you mean... Don't you want to share it with us?

 

Don't get too excited - what I find interesting a lot of people will find as dull as ditch water (noioso da morire)

 

Do we have any news about the new firmware instead?

 

Try us so we can help you decide

 

I think it's a SOC issue unique to AML but I've had zero feedback from the devs about it which usually means they don't know.

But honestly, how much of an problem is it?

I've dutifully had this in my buglist for a while and I'd love an answer, but more out of curiosity than anything else - in all honesty it's not something that I have seen to be an issue* in the real world unless I throw a test pattern (and yes, then it's annoying).

If you can give me some content that shows a problem I might feel like I have a dog in the fight.

* of course this might be because I have a Samsung which isn't HDMI level agile.

 

That right there.

Please, try on a panel that has proper level control for both RGB and Ycbcr ((black AND white levels) and i'm pretty sure that's the issue - RGB is normally always full, and YCBCR should ALWAYS be limited)).

We've been here before with the Z1000 Pro don't forget......

 

Quantisation Range is selectable for both YCbCr and RGB, so either can be full or limited.

Most TVs allow both YCrCb and RGB to be selectable but for reasons best known to Samsung, they always only have RGB selectable.

But both my Sony flatscreen and JVC PJ are both selectable in both cases, so as I say, if you can provide some real world content where I'll see a difference on either my Sony or my JVC between say a Realtek Zidoo (which doesn't have this issue) and an AML box (that does) then it would be very helpful.

(The issue we had with the 1619 boxes was a bit different to this)

 

Hi Mark. Do you think it's possible to get settings for different subtitle positions for different aspect ratios in the future?

 

Yeah, true, to a point - but there is a reason why Samsung went that down that road for YCrCb...Full Range YCrCb should not exist (to my knowledge anyway).

I'll see what I can find, although it's not that easy. It tends to show itself as slighty raised whites and slightly washed out colours.

 

Hopefully soon. I asked @Zidoo Support-Kim and got this reply yesterday.

 

Sorry to labour the point, but it's absolutely true in all cases - there's a setting in the EDID for quantisation range selectability for both RGB and YCbCr and I've only ever seen Samsungs (all Samsungs) that are not able to select full range for YCbCr.

Nothwithstanding AMLogic SOC devices, most, if not all media players allow the selection, either automatically or manually of limited or full range in both modes.

Cool.

Have you tried to adjust white level on the TV for an SDR white level test pattern to 235?

Admittedly that may affect other SDR HDMI sources (depends whether the TV adjusts per HDMI port or not), but do you have any? I'd assume any other SDR source would be internal apps and they shouldn't be affected (although again that depends on how the TV applies white level but should be easy to test).

At least you could try that to see if you see an improvement.

 

Yeah, I've tried, and, certainly on my Sony, it's not possible to compensate for full range white with limited range black levels, as it's a level mismatch.

 

I know you know all this, but adjusting white level (contrast) shouldn't care about that - it's the very simplest of calibrations - black level (brightness) using a PLUGE and white level (contrast) using a white clip pattern (white clip patterns don't get a fancy acronym!).

So all you do is reduce contrast, which, by definition, should only affect the top end so I don't know why it shouldn't be possible.

 

Contrast @0, Peak Luminence off, Black adjust off, Contast enhancer off, not seen in pic, but white level still visable 246/247: Like I said...