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  Reply # 2072544 13-Aug-2018 10:51
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@dingbatt - you should also add a comment about HDR and that it needs HDMI 2.0a (note that the 'a' is important) for connections between an HDR TV and whatever source (blu-ray,, Xbox, etc.) is connected otherwise it may not work.


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  Reply # 2072967 13-Aug-2018 20:56
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I re-quote my quote of the quote of the quote regarding HDMI and data flow


Masterpiece:
xyeovillian:
I have a HDMI cable which has just stopped playing the right colours so I swapped it for another.


My Question is do you need more expensive ones or something like $5.00 ones from say the Warehouse?


To connect PS3,Panasonic DVD recorder,Apple TV and Intel Nuc through a Yamaha RX-840 finally to An LG smart TV.


I have always used the cheap ones just curios with anyone's experience.



I'll quote myself from another thread below that explains some of the reasoning behind requirements.
I'll add that it really comes down to the quality control of manufacture and quality of the components than the actual price.
For 4k+HDR signals and greater than 4~5m length I'd recommend active cables.
For relatively shorter lengths just a reasonably constructed cable is good.
I have been using Dynamix cables from Jaycar with no real dramas.

Also note cables can expire from use, contacts get dirty, moisture ingress, overuse breakdown. Gaming console cables can get overuse from being constantly plugged in and out and moved around. Smoking, cooking oils and tar can ruin contacts.


Most HDMI 1.4 devices are limited to 9~10.2Gbps and in some cases lower.

1080p24 @8bit 4:4:4 = 2.23Gbps

If you struggle with this, lower settings 1080i, 720p or even 576i to get a signal then step up one level at a time until it fails then drop back one setting. That then is the device/cable transport limit. Note: some DVD/BD players amp up the signal more than others at the risk of swamping the HDMI cable.


If you struggle to do this over any connection you are in trouble for anything related to 4k or HDMI 2.0a~2.1

2160@24 8bit 4:4:4 = 8.91Gbps

A lot of people should be able to do basic 4k as above with short/medium cables and transitional 4k devices.

2160@24 10bit 4:4:4 = 11.14Gbps
2160@24 12bit 4:4:4 = 13.36Gbps

This is where people will start having issues when they raise bit depth to 10bit/12bit, this will be the default future for 4k +HDR as 8bit is just not good enough.

2160@50/60 8bit 4:4:4 = 17.82Gbps

So you want 60fps, you drop to 8bit but probably overwhelm your systems.
8 bit is not the way to go.

You are better off setting this

2160@24 10bit 4:4:4 = 11.14Gbps
or
2160@50/60 10bit 4:2:0 = 11.14Gbps

I'd argue that the 24hz would be better on a modern display that ups the Hz.
this does depend on the source material and what it is as default.







Masterpiece Calibration Ltd, isf certified

 

www.mastercal.co.nz

 

 

"I'm not a robot!"



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  Reply # 2075876 19-Aug-2018 17:44
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I have updated the opening post with some of your comments and amendments. It is still a work in progress, with the aim to be a simple guide at the beginning and people can delve more deeply into the thread itself for more info.

@jarledb Thanks for adding the edits for me.




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  Reply # 2080044 28-Aug-2018 02:21
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LG announces Alexa support for Oz TVs but unfortunately not yet for NZ:

 

 

 

https://www.engadget.com/2018/08/24/google-assistant-lg-thinq-tv-more-countries/

 

 




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  Reply # 2080551 29-Aug-2018 08:33
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eracode:

LG announces Alexa support for Oz TVs but unfortunately not yet for NZ:


 


https://www.engadget.com/2018/08/24/google-assistant-lg-thinq-tv-more-countries/


 



I have been in contact with LG over the past couple of weeks about Home Assistant and Alexa in 2018 TVs. According to the latest communication I have had with them, it is coming to NZ via a firmware update scheduled for November this year.
It was demonstrated at CES in January and announced in a press release in May. From what I have been able to find out, it will work through the microphone on the magic remote and not be listening continuously.
It has been a very drawn out process trying to get any information out of LG.




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UHD

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  Reply # 2080653 29-Aug-2018 09:45
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For anyone considering a new TV please note that one of the best features of UHD technology: HDR is a complete mess right now. Almost no consumer panels can output 1,000 nits let alone 4,000 nits which means any HDR source has to be tonemapped.

 

Unfortunately, there is no standard for tonemapping algorithms and it seems each manufacturer has a different approach meaning the different sets often produce a wildly different picture given the same input.

 

https://www.youtube.com/watch?v=Lt6IflKAmWg

 

Dolby Vision should improve this situation slightly as is should at least standardise output between manufacturers but that only helps for content encoded with Dolby Vision which is a select few UHD Blu-ray discs and some Netflix content. Amazon video use HDR10+ and so will other UHD Blu-ray discs.

 

Horrible HDR tonemapping actually makes UHD look worse than regular Blu-ray discs in many cases and this problem will likely be around for a while so bear that in mind when you're waving around your $5,000 for a shiny new UHD TV set.


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  Reply # 2080677 29-Aug-2018 10:21
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Dingbatt:
eracode:

LG announces Alexa support for Oz TVs but unfortunately not yet for NZ:


 


https://www.engadget.com/2018/08/24/google-assistant-lg-thinq-tv-more-countries/


 



I have been in contact with LG over the past couple of weeks about Home Assistant and Alexa in 2018 TVs. According to the latest communication I have had with them, it is coming to NZ via a firmware update scheduled for November this year.
It was demonstrated at CES in January and announced in a press release in May. From what I have been able to find out, it will work through the microphone on the magic remote and not be listening continuously.
It has been a very drawn out process trying to get any information out of LG.


Thanks for that. I have the new Sonos Beam soundbar running off our LG C8. The Beam is Alexa-enabled and the Alexa non-TV stuff works well. (Maybe that should be ‘reasonably well’. On Saturday night I was interested to see what Alexa might know about NZ rugby union and Bledisloe Cup etc. Asked her several simple, clear, short questions and all she came up with was some info from Wikipedia on the Warriors. In the end she said something like ‘this is something I don’t know about but I can do some research and get back to you if I find something. Would you like me to do that?’. Still waiting.).

In connection with the TV, Beam/Alexa will act on simple instructions like TV on/off/volume up-down etc - but it seems you can’t get her to do something more specific like “Alexa, show Star Trek Discovery on Netflix” without the Alexa app on the TV itself. I’ll be keen to try it if/when it becomes available in NZ. If Oz now has it for LG, maybe we’re not far behind.

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