Author Topic: HDMI discussion thread - including new developments  (Read 65961 times)

Offline Fanzhen

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #15 on: November 14, 2009, 16:52 »
May I know whether this swivel head hdmi cable available in Singapore?

Offline n3wk1d

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« Last Edit: November 14, 2009, 17:34 by n3wk1d »
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Offline petetherock

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RMore HDMI confusion.... no more versions...
« Reply #17 on: November 24, 2009, 20:53 »



http://www.highdefdigest.com/news/show/High-Def_Retailing/Industry_Trends/HDMI/HDMI_Drops_Version_Numbers_–_Adds_1080i_Only_Cables/3809


Quote
Starting with what we now call HDMI 1.4, manufacturers will have to drop the version numbers from their products and adopt a new naming system.

On the surface it seems like a pretty solid idea. Dropping the number system and replacing it with an easy to understand naming system seems like a nice way to let those with less technical minds get a grasp on what these cables are doing. The new HDMI naming scheme seems to take it a bit too far.


 

--------------------------------------------------------------------------------
 

Five different versions of HDMI 1.4 will be available initially. Starting things off, HDMI Standard and HDMI Standard with Ethernet are the base versions of the new HDMI cables. They’re self explanatory, (if lengthy to type). HDMI Standard Automotive is the third, marking the last of the HDMI Standard series. The final two cable types are HDMI High Speed and HDMI High Speed with Ethernet.

The need to add a second tier of cables to the lineup is a bit baffling, and the technical difference between Standard and High Speed HDMI cables is equally strange.

HDMI Standard cables, according to the HDMI Licensing LLC, are designed and tested to transmit 720p and 1080i. The website states the reason being that “the HD resolutions that are commonly associated with cable and satellite television, digital broadcast HD, and upscaling DVD players.”

High Speed HDMI cables on the other hand, are “designed and tested to handle video resolutions of 1080p and beyond, including advanced display technologies such as 4K, 3D, and Deep Color.” Both offer the same Ethernet speeds – a full duplex 100 Mb/sec.

Since 1080p resolution capability is not included in the lower end cables, customers who purchase new HDTVs, Blu-ray players, and game consoles will almost certainly need to purchase the High Speed cables. Already excessive cable prices from many manufacturers can be expected to jump for the new standard.
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Offline petetherock

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #18 on: December 21, 2009, 10:23 »
Does HDMI carry audio & video?

Yes


Will device XXX sync well with device YYY?

The nature of HDMI is still unpredictable - MOST will, but it is not a certainty. In time updates to the firmware will resolve it, but some bugs still exist.
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Offline ikanyubodoh

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #19 on: December 21, 2009, 10:29 »
Does HDMI carry audio & video?

Yes


Will device XXX sync well with device YYY?

The nature of HDMI is still unpredictable - MOST will, but it is not a certainty. In time updates to the firmware will resolve it, but some bugs still exist.

Thanks ;)
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Offline petetherock

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HDMI/DVI HDCP Handshake Problems & How to Avoid Them
« Reply #20 on: January 08, 2010, 23:33 »
A good link to why it happens:

HDMI/DVI HDCP Handshake Problems & How to Avoid Them
A simple word (actually a long series of words) -high-definition content protection (HDCP) system

http://cn.hdmi.org/pdf/whitepaper/AvoidingHandshakeProblems.pdf

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Offline cstanxpl

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #21 on: January 10, 2010, 12:49 »
van den Hul HDMI flat compliant with HDMI 1.4 up to 10m

http://www.vandenhul.com/p_B31AK.aspx

Used to be compliant to HDMI 1.3 up to 12.5m.

Edit : up to 12.5m.
« Last Edit: January 17, 2010, 15:17 by cstanxpl »
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Offline asianboy

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #22 on: January 10, 2010, 12:59 »
van den Hul HDMI flat complaint with HDMI 1.4 up to 10m

http://www.vandenhul.com/p_B31AK.aspx

Used to be complaint to HDMI 1.3 up to 15m.

you meant compliant right?

Offline cstanxpl

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #23 on: January 10, 2010, 13:03 »
you meant compliant right?

 ;D Paisei

Yes, compliant.  :-[

Will edit it.

I think some other HDMI 1.3 compliant cables may be 1.4 compliant in shorter length too.
« Last Edit: January 10, 2010, 13:08 by cstanxpl »
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Offline asianboy

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #24 on: January 10, 2010, 13:39 »
lucky. We may not need to buy new hdmi cables just to use ver 1.4 again. Anyway the electronic manufactures are getting greedier and greedier. Cant give consumers a break for three or four years but want us to change our equipment every year.

Offline n3wk1d

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #25 on: January 10, 2010, 17:25 »
You can't judge a cable complaint notes coming from the marketing side.

A 1.3 or 1.4 compliant cables doesn't really meant they are true 1080p at that type of distance.
A statement coming from a manufacturer stated that
"There are no manufacturer at current moment (2009) are holding and tested cable with Cat.2 certified at 40ft.(without amplifier/booster)."

So, don't just look at the version. It's really very confusing as of now.
A Ver1.3 cable might not really pass Cat.2, it might only tested and certified at Cat.1. In which (742.5Mbps) of bandwidth is tested. Or 720p/1080i only.
A Cat. 2 certified are tested with 340MHz or with a 1080p signal and passed.

As replied from the manufacturer, even the Belden Bonded pairs are not Cat.2 certified at 40'. They are tested only with "specific" device and certain output to 1080p certified devices. These are the work done by the marketing dept., stating they can run 100ft on 1080p devices.

On real world or back in the test bench, are they really 1080p ?

As off now, Jan 2010. There are no specific test set out by the CTS (Compliance Test Specification) on the 1.4 version or approved test set.

That's what I understand from the manufacturer on the HDMI 1.4 and 1.3.

I might be wrong though.  :P All the information I got is a reply from the manufacturer.
« Last Edit: January 10, 2010, 17:28 by n3wk1d »
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Offline Knight_Rider

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #26 on: January 10, 2010, 19:28 »
They just change the stickers like the 1.3 to 1.3a. What do you think they do with the old cables? Throw them away?  :P

Offline petetherock

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hdmi switching vs. pass through
« Reply #27 on: January 15, 2010, 15:35 »
HDMI pass through means that audio can't be read off the hdmi so you have to run a TOSLINK or coax audio digital signal to the receiver, which means you can't get high-resolution audio.

Switching allows you to get audio and video off the single HDMI cable.

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Offline petetherock

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o I Really Need HDMI 1.4 to Watch 3D HDTV and Blu-ray 3D?
« Reply #28 on: January 18, 2010, 11:37 »
http://www.bigpicturebigsound.com/CES-Do-I-Really-Need-HDMI-1-4-to-Watch-3D-HDTV.shtml

Good article on how the whole HDMI plays out with 3D TV.

It maybe a while before or if this becomes mainstream...
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Offline petetherock

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Re: HDMI discussion thread - including new developments & 1.4
« Reply #29 on: February 08, 2010, 11:22 »
As mentioned here, version 1.4 will be needed for 3D tv.

But the standard and the whole development cycle is still in progress.
Whilst Onkyo has annouced new amps with HDMI 1.4, the amount of 3D material out there does not currently justify the outlay.

But this is obviously a push by the sellers / makers to get revenue. If we do not upgrade they won't make any money.

It just like 5.1 vs 7.1 channels, we do not NEED it and there are still less than 20% of movies with 7.1.

But it may mean the entire batch of cables you own need to be changed to go 1.4.

Alternatively, we can patch seperate cables from a BR player with 2 outputs - one to the TV and another to the amp. That allows you to retain the 1.3 chain.

http://www.bigpicturebigsound.com/CES-Do-I-Really-Need-HDMI-1-4-to-Watch-3D-HDTV.shtml

Good article on how the whole HDMI plays out with 3D TV.

It maybe a while before or if this becomes mainstream...
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