Author Topic: HDMI discussion thread - including new developments  (Read 65929 times)

Offline desray

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Re: HDMI discussion thread - including new developments & 2.0
« Reply #195 on: January 06, 2017, 09:42 »
This is called "planned obsolescence" employed by most tech firms these days.


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Offline Jag

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Re: HDMI discussion thread - including new developments & 2.0
« Reply #196 on: January 06, 2017, 13:21 »
48Gbps..... it's going to be fiber HDMI.

The only way to avoid installation issues years down to road today is to ensure the cable conduit allows easy cable removal and replacement.

There is NO wireless today or in the next few years that can do 48Gbps.
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Offline petetherock

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Re: HDMI discussion thread - including new developments & 2.0
« Reply #197 on: February 08, 2017, 13:22 »



http://www.soundandvision.com/content/sneak-peek-hdmi-21#sW2qgUKXwboJcjew.97




Quote
Nevertheless, here’s what we know so far about HDMI 2.1.


The big news is that it’s designed to have a bandwidth of 48Gbps (well over twice the 18Gbps bandwidth of HDMI 2.0 and 2.0a), and employs a new form of HDMI cable called, oddly enough, 48G. The HDMI connectors on this new cable will be the same as the current HDMI connectors, but the cable itself will be upgraded. The new cables will be backwards compatible with all current sources and hardware.


At least part of HDMI 2.1’s advanced bandwidth, however, is achieved by hardware changes at the source and receiving ends, not just in the cable. To get the most from HDMI 2.1, the hardware in the source and the receiver will also be different; you won’t get the full HDMI 2.1 package with the new cables alone.


And as far as we know, the current HDMI versions in your sources, AV receivers, and displays can’t be upgraded to full HDMI 2.1 with firmware alone. It’s possible that firmware upgrades might enable at least some of HDMI 2.1’s features, but don’t assume that they will; this will be specific to the actual source/AV receiver/display and its manufacturer.


What benefits will this higher bandwidth offer? It can convey 4K at a maximum of 120 fps (frames per second, or Hz), in 4:4:4 color (no color compression). It can do 8K at 60 fps (4:4:4) or 120Hz (4:2:0), and other resolutions up to 10K.


In addition, HDMI 2.1 can handle BT.2020 color at a bit depth of up to 16 bits (per color), considerably higher than the 12-bit limit of HDMI 2.0 and 2.0a. It can also do HDR with dynamic metadata at 8K and higher. HDMI 2.0 can convey the dynamic metadata currently offered in Dolby Vision, but only at a maximum of 4K resolution. In addition, it’s our understanding that Dolby Vision’s current compatibility with HDMI 2.0 is due to specific Dolby workarounds that allow it to use that version of HDMI. There are other competitors for dynamic metadata HDR currently vying for future use; they can’t use Dolby’s workarounds for obvious reasons and therefore could benefit from HDMI 2.1. (Dynamic metadata can code 2/7/17HDR differently for each shot or scene, whereas HDR10—currently the dominant HDR format on UHD Blu-ray discs—uses the same static metadata for an entire film.)


In addition, HDMI 2.1 will offer a variable refresh rate (VRR), a real benefit for gaming. It also promises enhancements to the Audio Return Chanel (ARC) feature, which in HDMI 2.1 will be called eARC. These ARC enhancements include increased audio bandwidth that, together with other possible benefits, will allow eARC to carry object-based audio (Dolby Atmos, DTS:X, and the like).




Read more at http://www.soundandvision.com/content/sneak-peek-hdmi-21#llrziSkYEZDhPAVX.99
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Offline ralfale

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Re: HDMI discussion thread - including new developments & 2.0
« Reply #198 on: February 08, 2017, 14:34 »
Things are moving too fast!!

Offline kenshin07

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Re: HDMI discussion thread - including new developments & 2.0
« Reply #199 on: February 08, 2017, 17:24 »
I am still using the very first/second gen hdmi 1.3b. Can get the new hdmi for my new place.
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Offline petetherock

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Re: HDMI discussion thread - including new developments & 2.0
« Reply #200 on: February 23, 2017, 14:52 »
http://www.soundandvision.com/content/are-new-cables-really-needed-hdmi-21#J35AmSijxd7cKHkl.97


Q It looks like the high data rate (up to 48Gbps) of the forthcoming HDMI 2.1 standard will create headaches for the consumer electronics industry, especially the cable manufacturers. Here’s my question: Why does decompression of video data happen in the disc player or streaming box instead of the TV? If the situation were reversed, then there would be no need for new, 48G HDMI cables. —Dave Ings / Toronto, Canada


A I don’t think cable manufacturers are too unhappy about the new HDMI 2.1 standard. After all, they’ll get the opportunity to sell you new cables.


There’s a simple reason why HDMI was designed to convey uncompressed video streams from the source to the display: copy protection. When HDMI was first introduced, a main selling point for film and TV studios looking to make their content available in high-definition was that conveying signals using HDMI’s high-bandwidth, encrypted connection would help to inhibit piracy. This in turn created a need to add MPEG video decompression capability to source devices, which is why that became a standard feature on Blu-ray players and other components.


A related historical footnote: Some early HDTVs — specifically, ones from Mitsubishi and Sony — featured FireWire connections. The reason? Manufacturers wanted to add networking capabilities to TVs, and FireWire, an Apple-developed serial bus designed for high-speed data transfer and bi-directional communication, permitted compressed HDTV signals to be easily shifted from a TV’s digital tuner to an external HDTV recorder. There was even an open standard created called HAVi (Home Audio Video Interoperability) to enable FireWire-based networking of devices so content and control functions could be distributed throughout the home. Ultimately, the film and television industry’s piracy concerns won out, and FireWire gave way first to DVI, then later HDMI, both of which supported the carriage of uncompressed video plus HDCP encryption.


The upshot here is that as long as high-resolution video sources like Ultra HD and regular Blu-ray players, cable/satellite boxes, PCs, and external streamers exist, there’s going to be HDMI. And as bandwidth requirements increase, as they will to support features like 8K-resolution video, high frame rates, and dynamic HDR, bigger HDMI pipes will be needed. In some cases, that’s going to mean new cables, which is what we’re unavoidably looking at with HDMI 2.1.




Read more at http://www.soundandvision.com/content/are-new-cables-really-needed-hdmi-21#gzDVDwo3YMPSK4vQ.99
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Offline petetherock

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Re: HDMI discussion thread - including new developments & 2.0
« Reply #201 on: April 20, 2017, 14:57 »
Lots of info, but it's quite lengthy, but for anyone interested in crystal balling the future, here is an article about HDMI 2.1:
http://www.soundandvision.com/content/taking-hdmi-next-level#k1pzPeplXFtz4Dso.97
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Offline petetherock

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Offline petetherock

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Offline AndrewC

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Re: HDMI discussion thread - including new developments
« Reply #204 on: December 03, 2017, 07:56 »
2.1 Specification's gone live; https://www.hdmi.org/press/press_release.aspx?prid=152

Quote
HDMI FORUM RELEASES VERSION 2.1 OF THE HDMI SPECIFICATION
A Huge Leap Forward Supports Resolutions Up to 10K and Dynamic HDR and Introduces New Ultra High Speed HDMI Cable
SAN JOSE, California – November 28, 2017 - HDMI Forum, Inc. today announced the release of Version 2.1 of the HDMI® Specification which is now available to all HDMI 2.0 adopters. This latest HDMI Specification supports a range of higher video resolutions and refresh rates including 8K60 and 4K120, and resolutions up to 10K. Dynamic HDR formats are also supported, and bandwidth capability is increased up to 48Gbps.

Supporting the 48Gbps bandwidth is the new Ultra High Speed HDMI Cable. The cable ensures high-bandwidth dependent features are delivered including uncompressed 8K video with HDR. It features exceptionally low EMI (electro-magnetic interference) which reduces interference with nearby wireless devices. The cable is backwards compatible and can be used with the existing installed base of HDMI devices.

Version 2.1 of the HDMI Specification is backward compatible with earlier versions of the specification, and was developed by the HDMI Forum’s Technical Working Group whose members represent some of the world’s leading manufacturers of consumer electronics, personal computers, mobile devices, cables and components.

“The HDMI Forum’s mission is to develop specifications meeting market needs, growing demands for higher performance, and to enable future product opportunities,” said Robert Blanchard of Sony Electronics, president of the HDMI Forum.

HDMI Specification 2.1 Features Include:
  • Higher video resolutions support a range of high resolutions and faster refresh rates including 8K60Hz and 4K120Hz for immersive viewing and smooth fast-action detail. Resolutions up to 10K are also supported for commercial AV, and industrial and specialty usages.
  • Dynamic HDR support ensures every moment of a video is displayed at its ideal values for depth, detail, brightness, contrast and wider color gamuts—on a scene-by-scene or even a frame-by-frame basis.
  • The Ultra High Speed HDMI Cable supports the 48G bandwidth for uncompressed HDMI 2.1 feature support. The cable also features very low EMI emission and is backwards compatible with earlier versions of the HDMI Specification and can be used with existing HDMI devices.
  • eARC simplifies connectivity, provides greater ease of use, and supports the most advanced audio formats and highest audio quality. It ensures full compatibility between audio devices and upcoming HDMI 2.1 products.
  • Enhanced refresh rate features ensure an added level of smooth and seamless motion and transitions for gaming, movies and video. They include:
    • Variable Refresh Rate (VRR) reduces or eliminates lag, stutter and frame tearing for more fluid and better detailed gameplay.
    • Quick Media Switching (QMS) for movies and video eliminates the delay that can result in blank screens before content is displayed.
    • Quick Frame Transport (QFT) reduces latency for smoother no-lag gaming, and real-time interactive virtual reality.
  • Auto Low Latency Mode (ALLM) allows the ideal latency setting to automatically be set allowing for smooth, lag-free and uninterrupted viewing and interactivity.

The HDMI 2.1 Compliance Test Specification (CTS) will be published in stages during Q1-Q3 2018, and HDMI adopters will be notified when it is available.
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Offline petetherock

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Re: HDMI discussion thread - including new developments
« Reply #205 on: December 17, 2017, 15:34 »

It looks like the general implementation of this won't occur until 2019 or so..
https://www.cnet.com/news/hdmi-2-1-is-here-but-dont-worry-about-it-now/

So if one is due to change gear soon, we shouldn't lose too much sleep.. there will always be advances..

Quote
The HDMI Forum has announced the final specification for HDMI 2.1.

We've written before about HDMI 2.1 and how it's a significant leap in what is possible over the venerable A/V connection. Higher resolutions, frame rates and numerous additional features mean this is definitely a next-generation connection, and cable, despite looking exactly like every previous generation of HDMI.

But here's the thing: HDMI 2.1 is almost ridiculously future-proofed. Most of the stuff it adds, like higher resolutions and frame rates, won't be widely available for years, if they come at all. A TV bought today or next year that doesn't have HDMI 2.1 will still be able to play back the vast majority of available content in the highest quality. And we don't expect TVs with HDMI 2.1 to even go on sale until late 2018 or, more likely, 2019.

That's a long time to wait if you want a new TV now. So our advice is to not to worry about HDMI 2.1 when you shop for a TV in 2017 or 2018. Unless you're a hard-core PC gamer with a top-flight rig, you won't be missing anything.

That's said, here's what you need to know.
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Offline petetherock

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Re: HDMI discussion thread - including new developments
« Reply #206 on: December 27, 2017, 09:02 »
<a href="http://www.youtube.com/v/EmVXcwRJvW8&fs=1" target="_blank" class="new_win">http://www.youtube.com/v/EmVXcwRJvW8&fs=1</a>
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Offline desray

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Re: HDMI discussion thread - including new developments
« Reply #207 on: December 27, 2017, 10:16 »
Unless there is hardware and software that support 8K else I dun see the rush or go crazy about this new HDMI v2.1. 


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Offline petetherock

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Re: HDMI discussion thread - including new developments
« Reply #208 on: January 10, 2018, 19:26 »
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Offline petetherock

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Re: HDMI discussion thread - including new developments
« Reply #209 on: September 16, 2018, 19:52 »
Useful info on ARC and Atmos as well as metadata audio transmission aka MAT.
http://community.cedia.net/blogs/david-meyer/2018/06/25/dolby-atmos-over-hdmi-arc
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