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1080p at 60 fps (or 50fps in PAL countries)
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tezmen
Newbie
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8. January 2006 @ 07:28 |
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Although I don't know what frame rate will be used in Blu-ray, I wonder very much if the Blu-ray players will be able to output 1080p@60fps. I have asked to Sony, they did not reply, then I asked to HDMI.org: same story. Many people claim that HDMI cannot carry 1080p at 60fps signal and since Blu-ray is going to be a HDMI compliant technology, there will not be Blu-ray discs with 1080p/60 content (unless there is an upgrade in HDMI).
Any opinions or information?
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diabolos
Suspended due to non-functional email address
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8. January 2006 @ 17:30 |
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Why can't HDMI carry 1080p @ 60 fps?
Quote:
The standard Type A HDMI connector has 19 pins, and a higher resolution version called Type B, has been defined, although it is not yet in common use. Type B has 29 pins, allowing it to carry an expanded video channel for use with high-resolution displays. Type-B is designed to support resolutions higher than 1080p.
Type A HDMI is backward-compatible with the single-link Digital Visual Interface (DVI) used on modern computer monitors and graphics cards. This means that a DVI source can drive an HDMI monitor, or vice versa, by means of a suitable adapter or cable, but the audio and remote control features of HDMI will not be available. Additionally, without support for HDCP, the video quality and resolution may be downgraded by the player unit. Type B HDMI is similarly backward-compatible with dual-link DVI.
I have seen swithch boxes that boast the ability to pass a UXGA (1600x1200) signal. I would think that one high qulaity HDMI cable should be able to carry at least a WUXGA (1920x1200) signal without problems. But I don't know for sure. I don't even think that the creators have a final spec for HDMI.
Yet I think that is the point. It is suppose to grow as the industry needs it too. It wouldn't be the first up grade for the HDMI interface.
Wikipedia (HDMI):
http://en.wikipedia.org/wiki/HDMI
Wikipedia (WUXGA):
http://en.wikipedia.org/wiki/WUXGA
Ced
This message has been edited since posting. Last time this message was edited on 8. January 2006 @ 17:31
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tezmen
Newbie
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9. January 2006 @ 02:37 |
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Quote:
Furthermore, an HDMI connection, at present, will not carry 1080p/60; the required bandwidth is too great. (Ironically, DVI will carry 1080p/60, but most consumer electronics manufacturers are phasing out DVI in favor of HDMI.)
Quoted from http://ultimateavmag.com/news/041805Mits/
there are many other websites that claim HDMI cannot carry 1080p/60. On the other hand, even if you find internet sources unreliable (which is something I do), you cannot find any official information to discredit that claim. If HDMI really was 1080p/60 capable I am sure that HDMI.org would have replied my e-mail asking if HDMI does carry 1080p/60 or not.
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chrisfunk
Member
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9. January 2006 @ 12:09 |
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noob question, but how do you know if you have DVI or 'dual link' DVI.
can you tell by looking?
edit: reason i ask is coz i have a nice 27" LCD and I'm a bit worried that everybody is raving about HDMI, and my tv hasn't got it!
It has DVI, d-sub, component and the rest, but no HDMI.
I want to know if in the future I get something with HDMI out, (blue ray etc) will i be able to connect it to my tv?
Xbox 1.6 Executor3 EvoX 120gb
Custom white case, controler port and power button blue LED mods.
AMD Athlon XP 2.2gig, 120gb 7200rpm HD
512mb PC2700 ram, Delta Audiophile soundcard.
27" HD LCD, 450w dolby digital system.
This message has been edited since posting. Last time this message was edited on 9. January 2006 @ 12:12
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diabolos
Suspended due to non-functional email address
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9. January 2006 @ 12:22 |
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That article doesn't make since. HDMI type B has more bandwith than Dual-Link DVI cable.
HDMI.org
Quote:
What is the life expectancy of HDMI?
HDTV uses less than 1/2 of HDMI's available 5 Gbps bandwidth. With capacity to spare, HDMI can incorporate new technology advancements and capabilities long into the foreseeable future.
HDMI.org
Quote:
What types of video does HDMI support?
HDMI has the capacity to support existing high-definition video formats (720p, 1080i, and even 1080p). It also has the flexibility to support enhanced definition formats such as 480p, as well as standard definition formats such as NTSC or PAL.
Why wouldn't they support 1080p at 60 fps when HDMI has 5 Gbps of bandwith?
Wikipedia
HDMI
Quote:
Video pixel rate: 25 MHz to 165 MHz (Type A) or to 330 MHz (Type B).
DVI
Quote:
HDTV (1920 × 1080) @ 85 Hz with GTF blanking (2×126 MHz)
It would seem that HDMI type b would be just as capable as Dual-Link DVI.
CNet
http://reviews.cnet.com/4520-6449-6361600-1.htmlQuote:
HP can handle 1080p via its HDMI inputs
???
Ced
This message has been edited since posting. Last time this message was edited on 15. January 2006 @ 14:39
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diabolos
Suspended due to non-functional email address
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9. January 2006 @ 12:23 |
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Quote:
I want to know if in the future I get something with HDMI out, (blue ray etc) will i be able to connect it to my tv?
Yes as long as your DVI input is HDCP complient. Get a HDMI to DVI adapter.
Ced
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chrisfunk
Member
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9. January 2006 @ 12:42 |
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yes i think it is, thanks.
can you buy these adapters yet, do you have any links?
Xbox 1.6 Executor3 EvoX 120gb
Custom white case, controler port and power button blue LED mods.
AMD Athlon XP 2.2gig, 120gb 7200rpm HD
512mb PC2700 ram, Delta Audiophile soundcard.
27" HD LCD, 450w dolby digital system.
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diabolos
Suspended due to non-functional email address
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9. January 2006 @ 12:53 |
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Yes every major retailer sells them. You can get either an HDMI-DVI adapter or an HDMI-to DVI cable (or vise versa).
The catch...
DVI doesn't carry audio like HDMI does. So don't forget to run audio cables to your set!
Ced
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chrisfunk
Member
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9. January 2006 @ 12:54 |
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Xbox 1.6 Executor3 EvoX 120gb
Custom white case, controler port and power button blue LED mods.
AMD Athlon XP 2.2gig, 120gb 7200rpm HD
512mb PC2700 ram, Delta Audiophile soundcard.
27" HD LCD, 450w dolby digital system.
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chrisfunk
Member
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9. January 2006 @ 12:56 |
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I don't see that as a catch, I would hate my audio to be tied up in the same cable, It'll be going thru my av amp anyway.
well thanks for clearing that up, i was starting to think my brand new tv was out of date already!
Xbox 1.6 Executor3 EvoX 120gb
Custom white case, controler port and power button blue LED mods.
AMD Athlon XP 2.2gig, 120gb 7200rpm HD
512mb PC2700 ram, Delta Audiophile soundcard.
27" HD LCD, 450w dolby digital system.
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