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The Official 3D Thread - Page 66

post #1951 of 2161
And once again, regarding the HDMI 1.4/1.3 compatibility, I haven't heard anything from Directv/Sky saying folks will lose the ability to pass audio over HDMI with their 3D (which will be done on firmware upgradable HDMI 1.3 systems, sort of like the PS3). Yes, they'll use frame packing, but frame packing is a mandatory part of the HDMI 1.4 spec.

Regardless, I guess we'll find out in about a month or so.

The question is, who's going to be first and purchase a Samsung 3D BD player to answer the question? I'm using Samsung as a suggestion, since they said it'll come with the 3D BD of Monsters Vs. Aliens.
post #1952 of 2161
CMO will start making 23.6" and 27" touch 3D LCDs

http://www.3d-display-info.com/cmo-w...-touch-3d-lcds
post #1953 of 2161
Quote:
Originally Posted by taz291819 View Post

Ok, I tested lying down on my side. While it doesn't make it look like the glasses are turned off (as in, seeing a blurry image), it does effect the pronunciation of the 3D effect. It basically makes it look 2D. The 3D effect is way too subtle.

With that said, I could tilt my head a good 30-degrees in either direction, and the 3D effect was still excellent.

What is your 3D setup?
post #1954 of 2161
Quote:
Originally Posted by Lee Stewart View Post

Some questions:

When a BD player sends it's signal from the SoC to the HDMI chip, isn't the audio and video sent as a combined signal?

Yes - audio data is sent between video frames.
Quote:


When that signal is sent to a 1.3 receiver (one that decodes HD audio) it is received as a single signal - audio and video combined?

To make the HDMI HDCP handshake, doesn't the HDMI chip in the receiver have to recognize the signal being sent from the BD player?

I'm not an expert on HDCP, but I believe the handshake is independent of the format of the video, ie it could be 480p, 1080i, whatever. Regarding the video itself, there is a very nice diagram on page "7 of 26" of the 1.4 3D portion spec I downloaded according to your instructions, but essentially this shows how it works. The audio is transmitted during "Vertical Blanking Interval" aka VBI. An audio receiver has logic to detect the VBI and ignore the active video portion. So to the receiver, it just looks like a really weird aspect ratio of 1920x2205 or something. But the receiver still has the logic to separate audio from any size video. And signal wise, the 3D signal just looks like a really tall video frame, but the TV knows how to extract it to L/R.

This standard is based on DVI, which is used in monitors. As an example, my projector is 16:9 1920x1080. Even though my projector's EDID only lists HDTV modes as supported, as well as my receiver's manual, I can connect to the computer and force 1280x1024 mode and it gets passed through and displayed.

Quote:


Once recognized and the handshake is complete - doesn't the HDMI chip send the combined signal to the two different parts of the receiver - to the audio decoding section and seperately to the HDMI output that is used to send the signal to the HDMI receiving chip in the HDTV where onece aagin, the handshake has to happen to get an image?

In this regard, it is entirely up to the receiver, and some may work, some may not, some may with a FW upgrade, etc. My guess would be that the receiver simply repeats whatever signal it gets, as this would be the cheapest solution that doesn't require decoding and re-encoding the video signal. In this sense, the output port would act very much like the original signal splitter.
post #1955 of 2161
Quote:
Originally Posted by taz291819 View Post

And once again, regarding the HDMI 1.4/1.3 compatibility, I haven't heard anything from Directv/Sky saying folks will lose the ability to pass audio over HDMI with their 3D (which will be done on firmware upgradable HDMI 1.3 systems, sort of like the PS3). Yes, they'll use frame packing, but frame packing is a mandatory part of the HDMI 1.4 spec.

Regardless, I guess we'll find out in about a month or so.

The question is, who's going to be first and purchase a Samsung 3D BD player to answer the question? I'm using Samsung as a suggestion, since they said it'll come with the 3D BD of Monsters Vs. Aliens.

The audio compatability issue that is being discussed is with 3D BD.
post #1956 of 2161
Quote:
Originally Posted by BobearQSI View Post

Yes - audio data is sent between video frames.

I'm not an expert on HDCP, but I believe the handshake is independent of the format of the video, ie it could be 480p, 1080i, whatever. Regarding the video itself, there is a very nice diagram on page "7 of 26" of the 1.4 3D portion spec I downloaded according to your instructions, but essentially this shows how it works. The audio is transmitted during "Vertical Blanking Interval" aka VBI. An audio receiver has logic to detect the VBI and ignore the active video portion. So to the receiver, it just looks like a really weird aspect ratio of 1920x2205 or something. But the receiver still has the logic to separate audio from any size video. And signal wise, the 3D signal just looks like a really tall video frame, but the TV knows how to extract it to L/R.

This standard is based on DVI, which is used in monitors. As an example, my projector is 16:9 1920x1080. Even though my projector's EDID only lists HDTV modes as supported, as well as my receiver's manual, I can connect to the computer and force 1280x1024 mode and it gets passed through and displayed.


In this regard, it is entirely up to the receiver, and some may work, some may not, some may with a FW upgrade, etc. My guess would be that the receiver simply repeats whatever signal it gets, as this would be the cheapest solution that doesn't require decoding and re-encoding the video signal. In this sense, the output port would act very much like the original signal splitter.

So what part does EDID play in the signal?

Isn't EDID part of the HDMI specs?

And isn't the EDID different with a 3D signal than a 2D signal?
post #1957 of 2161
I also noticed in the HDMI spec released, regarding bandwidth:
If the 3D system supports the 2D 1080p60 format, then it must also support:
3D Full 1080p per eye @ 24Hz
3D Full 720p per eye @ 60Hz

Now, this is just a minimum requirement, it doesn't say a device can't support higher, but both of those would fit into the bandwidth of HDMI 1.3 assuming the 3D 720p didn't use deep color.

This does sound like good news for those who don't want to replace in-the-wall HDMI 1.3 cables, etc, in order to upgrade to full 1080p24 per eye.
post #1958 of 2161
Quote:
Originally Posted by BobearQSI View Post

I also noticed in the HDMI spec released, regarding bandwidth:
If the 3D system supports the 2D 1080p60 format, then it must also support:
3D Full 1080p per eye @ 24Hz
3D Full 720p per eye @ 60Hz

Now, this is just a minimum requirement, it doesn't say a device can't support higher, but both of those would fit into the bandwidth of HDMI 1.3 assuming the 3D 720p didn't use deep color.

This does sound like good news for those who don't want to replace in-the-wall HDMI 1.3 cables, etc, in order to upgrade to full 1080p24 per eye.

Wasn't that the recent change made to accomodate the over/under 3D format that was wanted?
post #1959 of 2161
Quote:
Originally Posted by taz291819 View Post

Ok, I tested lying down on my side. While it doesn't make it look like the glasses are turned off (as in, seeing a blurry image), it does effect the pronunciation of the 3D effect. It basically makes it look 2D. The 3D effect is way too subtle.

With that said, I could tilt my head a good 30-degrees in either direction, and the 3D effect was still excellent.

Keep in mind, when you lay down, one eye is ABOVE the other. You eyes are seeing an image intended for the eyes being NEXT to each other. The brain is saying "this does not equate".
post #1960 of 2161
Quote:
Originally Posted by Lee Stewart View Post

isn't the EDID different with a 3D signal than a 2D signal?

No, the EDID can be considered a ROM chip. The receiver requests/reads the EDID once at startup. If a display actively changed its EDID it would have problems with HTPCs, because Windows will read it once and cache it forever for a display (by default). The EDID contains all the formats the display supports in one package, both 2D and 3D. The new 3D stuff gets it own new section. The receiver only requests the sections it is interested in, and thus would never even see the 3D data.

Quote:
Originally Posted by Lee Stewart View Post

So what part does EDID play in the signal?

Isn't EDID part of the HDMI specs?

It essentially tells the display what modes it supports in one giant package, divided into sections. However, because of the way EDID works, only one device can read the EDID at any given time. This means that a repeater MUST read the EDID on its own, and make a copy it presents on each HDMI port. So each device on the repeater would be reading a separate copy, but this is okay as the data does not change.

If people are successfully using a splitter today to split the video/audio, then the receiver must be able to handle the display being the one who decides the video mode/resolution, and at that point the receiver just watches the audio portion of the data.
post #1961 of 2161
Quote:
Originally Posted by Lee Stewart View Post

Wasn't that the recent change made to accomodate the over/under 3D format that was wanted?

Not sure why it was added, I wasn't following along too closely then. But over/under is 1920x540 per eye (maybe 1280x360 per eye as well??), and the format listed in the spec is 1280x720 per eye.
post #1962 of 2161
Also, some info about EDID - this is not part of the signal, but rather has 2 separate wires in the HDMI cable dedicated to reading the EDID information. This standard began way back with VGA (maybe even earlier?), and the current version in use today has been the same version since before HDMI 1.0 became commercial. The current version allows lots of custom 'extensions' to be added, so the HDMI specifications define what data these extension blocks hold. So a 1.4 HDMI device knows it can request extension 'xyz' from another device, and that that device is going to either give back the data, or safely report that it doesn't have that extension. Since the receiver knows it is going to get one of those 2 responses, it can easily handle them both.
post #1963 of 2161
Bobear:

Please look at the section called SURROUND SOUND RECEIVERS in this link:

http://hdguru.com/

Do you agree or disagree with Gary?

PS: thank you for taking the time to answer my question . . .

Clear as . . . mud!

No really - thank you.
post #1964 of 2161
I spoke to DoReMi top person regarding this new "format" and he did confirm DoReMi will be incoporating as part of the new hdmi 1.4 product releases in Q3.

This applies to the dimension 3-D box and the Integrated Media Block for Digital Cinema Projectors.
post #1965 of 2161
Quote:
Originally Posted by Lee Stewart View Post

Bobear:

Please look at the section called SURROUND SOUND RECEIVERS in this link:

http://hdguru.com/

Do you agree or disagree with Gary?

Or, Bobear, do you agree that it is possible to solve the problem with using a powered HDMI splitter. The splitter relays the EDID data from the primary HDMI connection back to the source (so that is what the source responds to) and duplicates the data to both outputs?

Incidently, I note that the piece says:

Quote:


Your only solution will be to replace your receiver with a new one that’s 3D compatible or use one of a number of available“work arounds.”

The splitter approach could be one of that number!
post #1966 of 2161
Quote:
Originally Posted by CINERAMAX View Post

I spoke to DoReMi top person regarding this new "format" and he did confirm DoReMi will be incoporating as part of the new hdmi 1.4 product releases in Q3.

This applies to the dimension 3-D box and the Integrated Media Block for Digital Cinema Projectors.

Is there a reason why the link that you once posted to their format converter no longer works? It had some great pictures of the different 3D formats - the red and green images.

This was the link:

http://www.doremilabs.com/ftp/appnot...conversion.pdf
post #1967 of 2161
Quote:
Originally Posted by davehancock View Post

Or, Bobear, do you agree that it is possible to solve the problem with using a powered HDMI splitter. The splitter relays the EDID data from the primary HDMI connection back to the source (so that is what the source responds to) and duplicates the data to both outputs?

Incidently, I note that the piece says:



The splitter approach could be one of that number!

He already answered your question - post 1931:

Quote:


Also, the EDID will not change after being read. Windows actually takes advantage of this and will cache the EDID for any devices. So the same EDID block should be used whether a 1.4 or 1.3 device is connected. Thus, if you can connect the device only to the receiver, and can get audio, and you can connect the device to the TV and get a 3D picture, then you should be able to use a splitter and get both.

If the device will not work with any 1.3 receiver period, even directly connected, then in that case a splitter alone won't fix it.
post #1968 of 2161
Lee, it is here now:It seems to have been updated this morning.


http://www.doremilabs.com/appnotes/D...conversion.pdf
post #1969 of 2161
Quote:
Originally Posted by CINERAMAX View Post

Lee, it is here now:It seems to have been updated this morning.

http://www.doremilabs.com/appnotes/D...conversion.pdf

Thank you!

I use it a lot.

And this one:

http://www.jvc.eu/3d_monitor/technology/video.html

It's easier to show people pictures of the different 3D formats then it is to describe them.
post #1970 of 2161
I wonder how the new 2205 by 1920 O/U format going to be supported by htpc's and their video cards?
post #1971 of 2161
Quote:
Originally Posted by CINERAMAX View Post

I wonder how the new 2205 by 1920 O/U format going to be supported by htpc's and their video cards?

NVIDIA Demonstrates 3D Blu-ray Playback Accelerated On GeForce And 3D Vision Technologies

http://www.nvidia.com/object/io_1260507693932.html
post #1972 of 2161
Just wanted to let you guys knows that the BDA reps fed me missinformation and I posted it here -- as well as others. Yesterday someone leaked a page from the actual BDA 3D spec and it does raise the maximum bitrate for MVC encoded 3D titles from 40Mbps to 60Mbps and yes this does require a 2x speed BD ROM drive.
post #1973 of 2161
Quote:
Originally Posted by JamesE View Post

For people with HT computers, will they need a new video card to play the 3D movies?

The newer video cards will get driver updates that enable them to decode MVC.
post #1974 of 2161
bd,

When do you envision 3-D PC BD being enabled? Q2, Q3?

You are saying existing 2x br rom drives are already set?
post #1975 of 2161
Quote:
Originally Posted by bdraw View Post

Just wanted to let you guys knows that the BDA reps fed me missinformation and I posted it here -- as well as others. Yesterday someone leaked a page from the actual BDA 3D spec and it does raise the maximum bitrate for MVC encoded 3D titles from 40Mbps to 60Mbps and yes this does require a 2x speed BD ROM drive.

Thanks Ben!

I'm assuming that the PS3 already had a drive capable of these higher speeds allowing it the ability to eventually firmware update for 3D compatibility.

Great to know about the higher peak bitrate. That should nullify any risk of compression artifacting as long as overall disc-space doesn't get depleted.

BTW, I hear someone from the blu-ray forum indicate that Penton said that the 33.4 single-layer and 66GB double layer BDs won't get used for video application. Anyone heard anything about 33/66 GB blu-ray?
post #1976 of 2161
Quote:
Originally Posted by Lee Stewart View Post

He already answered your question - post 1931:
Quote:


Also, the EDID will not change after being read. Windows actually takes advantage of this and will cache the EDID for any devices. So the same EDID block should be used whether a 1.4 or 1.3 device is connected. Thus, if you can connect the device only to the receiver, and can get audio, and you can connect the device to the TV and get a 3D picture, then you should be able to use a splitter and get both.

If the device will not work with any 1.3 receiver period, even directly connected, then in that case a splitter alone won't fix it.

Yes he did - didn't he?
post #1977 of 2161
Quote:
Originally Posted by CINERAMAX View Post

I wonder how the new 2205 by 1920 O/U format going to be supported by htpc's and their video cards?

It'll be done in software. The player will decode it, convert and output to whatever method your display needs. This is what Stereoscopic Player currently does.
post #1978 of 2161
Quote:
Originally Posted by Lee Stewart View Post

What is your 3D setup?

Samsung HL61A750, IO shutter glasses (with emitter), and a HTPC. I use Stereoscopic Player for playback of media.
post #1979 of 2161
Quote:
Originally Posted by davehancock View Post

There is a BIG difference between studios using various tools to craft a realistic looking 3D presentation from 2D material and some sort of fixed automatic circuitry in a TV set to make uncontrolled synthetic 3D material from 2D.

geister didn't make clear which he was referring to, but I suspect that he was asking about the "built-in" automatic variety.

And yes, I'd like to see comments from anyone who has seen the "built-in" pseudo 3D generator process in action.

Yes, the question was concerning the latter type (circuitry within the TV). It was mentioned that Samsung is using DDD technology.
(http://www.hdtvreview.com/news/2010/...logy-in-3dtvs/)

Sony hasn't announced such conversion, and most consumers interested in 3D are definitely going to prefer a brand that displays ALL content in 3D.
post #1980 of 2161
Quote:
Originally Posted by Lee Stewart View Post

Bobear:

Please look at the section called SURROUND SOUND RECEIVERS in this link:

http://hdguru.com/

Do you agree or disagree with Gary?

PS: thank you for taking the time to answer my question . . .

Clear as . . . mud!

No really - thank you.

I agree with him, for the most part. I think it is possible for a receiver to pass along the 3D signal, but I also think it is likely that many or all won't. The reason is the EDID. The receiver must read the EDID of the player and make some sort of local copy to give to the TV, because the TV will only communicate with the player. The receiver is not going to read the new 3D stuff and therefore not put 3D stuff in its local copy and pass it along. Just like if you do want to use a splitter, a current HDMI 1.3 splitter probably will NOT work, you will need an HDMI 1.4 splitter.

I do think a splitter is still possible and is one of the 'workarounds' he mentions.

To put the splitter issue to bed - IF you get a HDMI 1.4 splitter, it is definitely possible, but it depends entirely on the audio receiver. It will just look like a weird resolution image to the receiver. Whether it says ok or rejects this could vary from receiver to receiver, and a FW update could fix this on the receiver as well.
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