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Re: HD picture not even close to HD - too much compressio n
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07-18-2009 01:44:27 PM
UPDATE: All I have to say is wow. I just got TWC installed in my home and the HD quality is excellent! I can actually see all the wrinkles in people's faces and grass with all the detail! The soften blurried image that I used to get on uverse is gone now as well as the one second updated background artifacts. Fast moving scenes are not microblocking either. Life is good again! ![]()
Re: HD picture not even close to HD - too much compressio n
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07-18-2009 01:48:14 PM
pulseman wrote:UPDATE: All I have to say is wow. I just got TWC installed in my home and the HD quality is excellent! I can actually see all the wrinkles in people's faces and grass with all the detail! The soften blurried image that I used to get on uverse is gone now as well as the one second updated background artifacts. Fast moving scenes are not microblocking either. Life is good again!
Something tells me you really don't want to leave U-verse. You keep coming back to the forum.

Re: HD picture not even close to HD - too much compressio n
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07-18-2009 02:14:03 PM
OK fine that was my last one.
I just wanted to give you an update.
Re: HD picture not even close to HD - too much compressio n
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07-18-2009 02:18:04 PM
pulseman wrote:
OK fine that was my last one.
I just wanted to give you an update.
I'm glad that you now have the HD PQ that your were looking for. You can come visit us on the forum anytime. ![]()

Re: HD picture not even close to HD - too much compressio n
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07-18-2009 04:36:14 PM

Re: HD picture not even close to HD - too much compressio n
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07-18-2009 04:38:46 PM
callmeox wrote:
Who died and made you the official greeter?
Want to fight?

Re: HD picture not even close to HD - too much compressio n
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07-18-2009 05:18:14 PM
texasguy37 wrote:Want to fight?
Not in front of the kids!

Re: HD picture not even close to HD - too much compressio n
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07-18-2009 05:19:48 PM
callmeox wrote:
texasguy37 wrote:Want to fight?
Not in front of the kids!
You're no fun!

Re: HD picture not even close to HD - too much compressio n
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07-18-2009 06:16:13 PM
I can't believe how emotionally invested some of you are in this cable service. Does it really offend you when a new user complains about the picture quality? If so I would think you would be used to it by now since this same conversation has went down over and over and over.
How's about when people complain about the picture quality from now on we just post something simple explaining that PQ is not as good as some other sources and list the basic things that can be done to make sure that the poster is receiving what the rest of us are.
Re: HD picture not even close to HD - too much compressio n
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07-18-2009 07:16:47 PM
RRK wrote:I can't believe how emotionally invested some of you are in this cable service. Does it really offend you when a new user complains about the picture quality? If so I would think you would be used to it by now since this same conversation has went down over and over and over.
How's about when people complain about the picture quality from now on we just post something simple explaining that PQ is not as good as some other sources and list the basic things that can be done to make sure that the poster is receiving what the rest of us are.
Just link to SomeJoe777's post and it pretty much covers it.
http://utalk.att.com/utalk/board/message?board.id=
Re: HD picture not even close to HD - too much compressio n
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07-18-2009 10:31:44 PM
RRK wrote:
I can't believe how emotionally invested some of you are in this cable service. Does it really offend you when a new user complains about the picture quality? If so I would think you would be used to it by now since this same conversation has went down over and over and over.
How's about when people complain about the picture quality from now on we just post something simple explaining that PQ is not as good as some other sources and list the basic things that can be done to make sure that the poster is receiving what the rest of us are.
Emotionally invested? Please. Sorry, but it is really not that simple.
I've got HD service as well as a 42" HD LCD and (surgically corrected) 20/15 vision and I don't see the same issues that these folks complain about no matter how close I sit to the TV.
When someone pops in and drops the standard "beware...Uverse sucks!!1!!!!1!!" post and tries to paint the service as sub-standard or inherently flawed, should we just ignore what they are saying even though our experience is totally different?
While they may be having issues with their service, allowing their claims to go unchallenged gives credence to the idea that there is some organic issue with Uverse and that's just not true.
(edit: the forum software ignores carriage returns even in editor mode)

Re: HD picture not even close to HD - too much compressio n
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07-18-2009 10:56:43 PM
pulseman wrote:
UPDATE: All I have to say is wow. I just got TWC installed in my home and the HD quality is excellent! I can actually see all the wrinkles in people's faces and grass with all the detail! The soften blurried image that I used to get on uverse is gone now as well as the one second updated background artifacts. Fast moving scenes are not microblocking either. Life is good again!
Yeah pulseman, I can see them just fine here on Uverse too, fast moving scenes are fine, no soften blurred
images on HDMI on my Panasonic plasma. ![]()
Chris
Please NO SD stretch-o-vision or 480 SD HD Channels
1-800-983-2811 to avoid Mr. Voice Recognition
YRMV IMHO Simply a U-verse user, nothing more

Re: HD picture not even close to HD - too much compressio n
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07-19-2009 05:36:12 AM
callmeox wrote:Emotionally invested? Please. Sorry, but it is really not that simple.I've got HD service as well as a 42" HD LCD and (surgically corrected) 20/15 vision and I don't see the same issues that these folks complain about no matter how close I sit to the TV.When someone pops in and drops the standard "beware...Uverse sucks!!1!!!!1!!" post and tries to paint the service as sub-standard or inherently flawed, should we just ignore what they are saying even though our experience is totally different?While they may be having issues with their service, allowing their claims to go unchallenged gives credence to the idea that there is some organic issue with Uverse and that's just not true.(edit: the forum software ignores carriage returns even in editor mode)Message Edited by callmeox on 07-19-2009 01:41 AM
The issues are real. Either you don't notice them or your tv is covering them up. Over-compression is not a claim. The fact that you have 3117 posts in less then 2 years shows that you are extremely dedicated to this service. Congratulations for loving U-verse but it is really OK if others do not love it. I will tell you I still think U-verse HD picture quality "sucks" compared to the only other HD picture I have ever had but I still like U-verse. I'm sorry but it is a fact. The people on this board that insist that there are no compression problems are what drove me to have over ten service calls in the first two months and a couple more weeks in contact with David's guys (I kept my old service to compare for the first month). The result was that they told me there is compression problems. It says on AT&T's help site that there are compression problems. You can look up the compression format and compare the allotted bandwidth and see that they are near the bare minimum for HD quality feeds. etc.
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 07:10:19 AM
RRK wrote:The issues are real. Either you don't notice them or your tv is covering them up. Over-compression is not a claim. The fact that you have 3117 posts in less then 2 years shows that you are extremely dedicated to this service. Congratulations for loving U-verse but it is really OK if others do not love it. I will tell you I still think U-verse HD picture quality "sucks" compared to the only other HD picture I have ever had but I still like U-verse. I'm sorry but it is a fact. The people on this board that insist that there are no compression problems are what drove me to have over ten service calls in the first two months and a couple more weeks in contact with David's guys (I kept my old service to compare for the first month). The result was that they told me there is compression problems. It says on AT&T's help site that there are compression problems. You can look up the compression format and compare the allotted bandwidth and see that they are near the bare minimum for HD quality feeds. etc.
Message Edited by RRK on 07-19-2009 06:09 AM
Looking....not finding. Care to provide a link to this?

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07-19-2009 07:25:19 AM
callmeox wrote:Looking....not finding. Care to provide a link to this?
http://helpme.att.net/uknow/uknow_wrapper.htm?Item=11690 #10
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 07:38:27 AM
how about that... "video stutter" is exactly the issue i experienced with uverse. glad to know they're working on it to be fixed in a future sw release.
any att moderators know when that might be? when it's resolved perhaps i'll consider switching back to uverse from cable.
btw... especially love part of the presentation with addams family 'thing' performing a soft reboot.
RRK wrote:
callmeox wrote:Looking....not finding. Care to provide a link to this?
http://helpme.att.net/uknow/uknow_wrapper.htm?Item=11690 #10
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 08:18:18 AM
squareeyes wrote:
how about that... "video stutter" is exactly the issue i experienced with uverse. glad to know they're working on it to be fixed in a future sw release.any att moderators know when that might be? when it's resolved perhaps i'll consider switching back to uverse from cable.btw... especially love part of the presentation with addams family 'thing' performing a soft reboot.
RRK wrote:
callmeox wrote:Looking....not finding. Care to provide a link to this?
http://helpme.att.net/uknow/uknow_wrapper.htm?Item=11690 #10
Message Edited by squareeyes on 07-19-2009 07:40 AM
Have a hunch the problem was your TV on this video stutter as I don't see it on my Panasonic plasma.
ATT may call it 'missing frames', but if so why wasn't I missing them? ![]()
Chris
Please NO SD stretch-o-vision or 480 SD HD Channels
1-800-983-2811 to avoid Mr. Voice Recognition
YRMV IMHO Simply a U-verse user, nothing more

Re: HD picture not even close to HD - too much compressio n
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07-19-2009 08:36:44 AM
i can't speak to why you don't have them. but my hunch is that it's either the way different television sets handle that compressed video or there is a local problem that affects some users and not others. it's either that or it's that some videophile users have a more discriminating eye than others. in my case all other "hd" video signals into my television, including cable, produced a far better picture than uverse did.
either way, it appears that att acknowledges that it is a widespread (if not universal) issue. i believe it's important for existing and prospective uverse customers to be aware of it.
so, is there a user or mod that has an eta for the sw update to fix the issue?
mibrnsurg wrote:Have a hunch the problem was your TV on this video stutter as I don't see it on my Panasonic plasma.
ATT may call it 'missing frames', but if so why wasn't I missing them?
Chris
Please NO SD stretch-o-vision or 480 SD HD Channels
1-800-983-2811 to avoid Mr. Voice Recognition
YRMV IMHO Simply a U-verse user, nothing more
Message Edited by mibrnsurg on 07-19-2009 11:19 AM
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 09:59:01 AM
squareeyes wrote:
i can't speak to why you don't have them. but my hunch is that it's either the way different television sets handle that compressed video or there is a local problem that affects some users and not others. it's either that or it's that some videophile users have a more discriminating eye than others. in my case all other "hd" video signals into my television, including cable, produced a far better picture than uverse did.either way, it appears that att acknowledges that it is a widespread (if not universal) issue. i believe it's important for existing and prospective uverse customers to be aware of it.so, is there a user or mod that has an eta for the sw update to fix the issue?
mibrnsurg wrote:Have a hunch the problem was your TV on this video stutter as I don't see it on my Panasonic plasma.
ATT may call it 'missing frames', but if so why wasn't I missing them?
Chris
Message Edited by squareeyes on 07-19-2009 08:37 AM
Don't give me this bunch of hooey, I just had my DOT physical and w/my glasses on I'm 20/13 vision. So don't
try and say I don't see them, if they were there I'd see em. Seamless HD on the fastest motion w/o any
stuttering is what I see. ![]()
Chris
Please NO SD stretch-o-vision or 480 SD HD Channels
1-800-983-2811 to avoid Mr. Voice Recognition
YRMV IMHO Simply a U-verse user, nothing more

Re: HD picture not even close to HD - too much compressio n
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07-19-2009 10:07:22 AM
More false info being handed out...and you wonder why I have 3K posts in two years??

Re: HD picture not even close to HD - too much compressio n
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07-19-2009 10:24:24 AM
chris, certainly didn't mean to offend. fantastic that you have good vision and can't see any video problems with uverse. i also have good eyesight and i rely on my acute vision and eye for detail at work. i don't believe it's hooey some users may not perceive the artifacts or stutter if its there-- with or without excellent vision. i wrote: "discriminating eye," not "poor eyesight." i also offered two other hunches that may be plausible. some users may not even have the issue. some tvs may simply handle the uverse video signal differently than others, it may be a local problem, or there could be any number of factors... everyone's av kit and environment are different. i'm certainly not an expert in the field, but i would like to know if there is a common thread between those who see the poor video quality coming to them from uverse.
the fact remains that it is an issue acknowledged by att and that it is a deal-breaker for some users who experience it. and i'd still like to know if there's an eta to resolve the issue at the posted att 'help' link:
"Are you experiencing a 'jump' forward when watching certain shows? You may be seeing what is called HD Stutter. HD Stutter is a skip forward due to the loss of a video frame. It is typically observed during slow horizontal pans - such as those that occur during sporting event coverage (particularly basketball)... The defect is usually present at all times... We can't eliminate HD stutter now - but we're working on it."
and i still crack up everytime i watch "thing" perform that soft reboot.
mibrnsurg wrote:
squareeyes wrote:i can't speak to why you don't have them. but my hunch is that it's either the way different television sets handle that compressed video or there is a local problem that affects some users and not others. it's either that or it's that some videophile users have a more discriminating eye than others. in my case all other "hd" video signals into my television, including cable, produced a far better picture than uverse did.either way, it appears that att acknowledges that it is a widespread (if not universal) issue. i believe it's important for existing and prospective uverse customers to be aware of it.so, is there a user or mod that has an eta for the sw update to fix the issue?
mibrnsurg wrote:Have a hunch the problem was your TV on this video stutter as I don't see it on my Panasonic plasma.
ATT may call it 'missing frames', but if so why wasn't I missing them?
Chris
Please NO SD stretch-o-vision or 480 SD HD Channels
1-800-983-2811 to avoid Mr. Voice Recognition
YRMV IMHO Simply a U-verse user, nothing more
Message Edited by mibrnsurg on 07-19-2009 11:19 AM
Message Edited by squareeyes on 07-19-2009 08:37 AMDon't give me this bunch of hooey, I just had my DOT physical and w/my glasses on I'm 20/13 vision. So don't
try and say I don't see them, if they were there I'd see em. Seamless HD on the fastest motion w/o any
stuttering is what I see.
Chris
Please NO SD stretch-o-vision or 480 SD HD Channels
1-800-983-2811 to avoid Mr. Voice Recognition
YRMV IMHO Simply a U-verse user, nothing more
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 10:33:35 AM
mibrnsurg wrote:
Don't give me this bunch of hooey, I just had my DOT physical and w/my glasses on I'm 20/13 vision. So don't try and say I don't see them, if they were there I'd see em. Seamless HD on the fastest motion w/o any stuttering is what I see.
Chris
Chris,
Do you have a Blu-Ray player? I assume you do.
What is your evaluation between the HD from U-Verse vs. the HD from a reference-quality Blu-Ray? Some example reference-quality Blu-Rays:
- I, Robot
- Baraka
- Live Free or Die Hard
- Pirates of the Carribean: Dead Man's Chest
How about U-Verse vs. some trash-quality Blu-Rays? Examples:
- The Fugitive
- The Fifth Element
- Full Metal Jacket (original release)
- Eyes Wide Shut
(For more examples, including Blu-Rays all the way in between these extremes, see the AVS Forum's PQ Tier Thread.)
I own I,Robot, Baraka, Live Free or Die Hard, The Fifth Element, and Eyes Wide Shut. And I have a Netflix account and have rented several others. For me, U-Verse's HD on a good station (Discovery HD, for example), is about even with some of those trash-quality Blu-Rays, maybe a touch higher. On the bad HD stations (NBC HD, USA HD), the quality is less than that. I don't count 720p stations (ABC HD, ESPN HD, FOX HD) as "real" HD.
Now, not all picture quality problems are the fault of U-Verse. On many Fox programs, I see interlacing artifacts that are Fox's fault due to improper editing/conversion. On many NBC programs I see macroblocks that are also present in the OTA feed, showing that NBC has artifact problems within their network before it gets to the broadcasters.
I'm interested in your opinion on this because from the way you describe U-Verse's HD on your setup, you would think it was pristine. Are you making this evaluation in relative terms to other providers or to HD in general?

Re: HD picture not even close to HD - too much compressio n
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07-19-2009 10:34:25 AM
sorry ox, i am not an expert in the field and i'm certainly not trying to disseminate false info. i honestly don't know what causes the video stutter, but i do know that it was an ever present issue with my uverse tv. and i could tell that the uverse video was not near as good as cable video in my home. i would simply like to know when the acknowledged issue is to be resolved. it might also be helpful if someone can discover and post a quick fix to help improve the video quality for those hanging in there w/uverse tv.
callmeox wrote:
HD Stutter does not equal 'compression artifacts' and the page does not even mention compression.
More false info being handed out...and you wonder why I have 3K posts in two years??
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 10:45:38 AM
As far as when the stutter will be fixed? This is a peer to peer forum so nobody knows or those who do are tight lipped. We're not privy to that info here and AT&T doesn't make a habit of assigning public due dates to technology changes (outside of investor chats).

Re: HD picture not even close to HD - too much compressio n
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07-19-2009 10:57:15 AM
thanks ox.
i'm kind of confused about att's mod involvement at this forum. i frequent the logitech harmony remote forum and their mods offer users critical help, explain updates and product quality issues. this forum's guidelines alludes to similar mod involvement with the clause in the forum guidelines page:
- We are here to help -
If you are new to the U-talk Forum and are unsure about anything, just post on the boards! The moderators and other participants are always happy to help. AT&T moderators are identified by a AT&T globe icon.
so far the only moderator "help" i've seen here is to politely remind some users to keep it courteous. are they of no other use at this forum? i would think it would go a long way toward building consumer confidence and a healthy user community if they could offer answers to questions like mine. it may help those users who are hanging in there for a service update to know an approximate wait time. i'd just like to know so i have something to look forward to-- switching back to uverse tv from cable once att irons out their quality issues.
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 11:22:56 AM
mrjr101 wrote:Well, the Internet Protocol was not really design to handle half of the things that it can handle today in the first place. Have you heard of reliable protocols? IP is not one of them unfortunately; and overcompression would make it worst.However, I believe they can pull this off! by doing less compression and more bandwith. You're right texasguy! I'm sure they will loose lots of costumers by word of mouth only.
ps: If OTA is free and the networks implemented it
"Have you heard of reliable protocols? IP is not one of them unfortunately; and overcompression would make it worst"
IP has nothing to do with reliability. It's just a protocol for inter-network routing. Any reliability would be in the higher-level Transport layer and above. TCP is reliable, but no real-time service will use TCP (or most other "reliable" protocols, because (unless you buffer it out the wazoo, highly undesirable) by the time you know you have an error, there's nothing to be done about it ... you can't hold up a real-time stream to wait for a re-transmission of one (or several) dropped packets.
"overcompression" is a little subjective too. Most users don't see the artifiact, and / or if they do, don't care, because the digital signaling is still way better then they got in the all-analog realm that we'v abandoned.
Regardless, the other place deserves you as a customer, and you deserve them as well. Good Luck and enjoy!
I am an AT&T employee and the postings on this site are my own and don’t necessarily represent AT&T’s positions, strategies or opinions.
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 11:31:43 AM
SomeJoe7777 wrote:
mibrnsurg wrote:Don't give me this bunch of hooey, I just had my DOT physical and w/my glasses on I'm 20/13 vision. So don't try and say I don't see them, if they were there I'd see em. Seamless HD on the fastest motion w/o any stuttering is what I see.Chris
Chris,
Do you have a Blu-Ray player? I assume you do.
What is your evaluation between the HD from U-Verse vs. the HD from a reference-quality Blu-Ray? Some example reference-quality Blu-Rays:
- I, Robot
- Baraka
- Live Free or Die Hard
- Pirates of the Carribean: Dead Man's Chest
How about U-Verse vs. some trash-quality Blu-Rays? Examples:
- The Fugitive
- The Fifth Element
- Full Metal Jacket (original release)
- Eyes Wide Shut
(For more examples, including Blu-Rays all the way in between these extremes, see the AVS Forum's PQ Tier Thread.)
I own I,Robot, Baraka, Live Free or Die Hard, The Fifth Element, and Eyes Wide Shut. And I have a Netflix account and have rented several others. For me, U-Verse's HD on a good station (Discovery HD, for example), is about even with some of those trash-quality Blu-Rays, maybe a touch higher. On the bad HD stations (NBC HD, USA HD), the quality is less than that. I don't count 720p stations (ABC HD, ESPN HD, FOX HD) as "real" HD.
Now, not all picture quality problems are the fault of U-Verse. On many Fox programs, I see interlacing artifacts that are Fox's fault due to improper editing/conversion. On many NBC programs I see macroblocks that are also present in the OTA feed, showing that NBC has artifact problems within their network before it gets to the broadcasters.
I'm interested in your opinion on this because from the way you describe U-Verse's HD on your setup, you would think it was pristine. Are you making this evaluation in relative terms to other providers or to HD in general?
Unluckily no Blu-Ray player to see what it would look like on my TV SomeJoe. Have seen Blu-Ray on LCDs
and not been that impressed. On my Panasonic TH42PZ80U plasma w/anti-reflective filter, HDMI using 4
differentTV picture settings, Custom (using your HDNet calibration), Standard (customized to be a mild
'lightener' for dark scenes and programs), Game (customized to be a heavy 'lightener' for the same) and
Cinema (default).
Also I sit 3 x diagonal distance away (10.5'-CNET's far seating position). In my recliner 9.5' away and at the
computer 13' away. In the recliner I see more of the compression artifacts than I do at the computer. Any
closer and I wouldn't be happy w/Uverse HD. I go through alot to get a good HD picture, since that's just me.
It's not pristine, I see the problems slightly of the background movement due to the frame refresh timing,
but none of the 'stuttering' on sports fast motion. Pretty much no pixelazation or macroblocking (except
that provided by the program) and find FOX HD pretty bad, except the All Star game was very good. Don't
watch much of anything on NBC, so don't know about that. Stats are all 0 except some corrected blocks from
POTS phone ringing to the answering machine and 510' from the VRAD all cat5e and ethernet patch cable. ![]()
Chris
Please NO SD stretch-o-vision or 480 SD HD Channels
1-800-983-2811 to avoid Mr. Voice Recognition
YRMV IMHO Simply a U-verse user, nothing more

Re: HD picture not even close to HD - too much compressio n
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07-19-2009 11:40:55 AM
pulseman wrote:In order to improve HD PQ and use less compression, they need to increase the bitrate of the video stream and in order to do that, they need to increase the bandwidth(pipeline), from 25MB which is currently at,(which is very low by the way) to a much higher number. Once the pipeline gets bigger, they can actually output HD without any compression at all. Verizon FIOS is doing exactly that and if you go to their website, they are very proud of their accomplishments when it comes to true uncompressed HD picture.
Additionally, by increasing the pipeline, they can have, not only 2HD channels per session(which shows you how limited their bandwidth is), but as many as they want as long as the bandwidth can handle it. ATT got cheap and instead of taking the fiber optic to each house like Verizon did, they decided to take it up to the neighborhood box only.Yes, they saved money in the short term but soon or later they are going to have to do it and it will cost them even more than what it cost to Verizon.
FIOS is not digital TV, it's just plain old digital cable TV, and they do compress it (because it is just plain old digital cable TV, and that's got the same limitations as their coax feed). They do not provide "unlimited bandwidth" they use limiting profiles, just like U-Verse. Both use exactly the same equipment for FTTH solutions.
As for the decision to provide service on copper (for the near term) ... that permits much faster growth, with service that the vast majority of users is satisfied with. By the time Verizon gets anywhere near the level of distribution and speed of growth, they will be still be up to their eyeballs in debt and begging for customers willing to pay the significantly higher costs to get their service (faster Internet, if they're willing to pay for it, and ho-hum, plain old Cable TV). They still need to coordinate with the municipal agencies to dig / bore and install their media to the neighborhoods. This is a fairly slow and very expensive process, compared to implementing existing copper.
In the meantime, AT&T is putting in all new service as FTTH, and will, at some point, begin the update process to migrate existing copper services to fiber. Also, in the meantime, bandwidth improvements (i.e. VDSL2, pair bonding, error correction) are being implemented and more bandwidth over copper is becoming available, "soon." Improvements to the technology and the infrastructure, in addition to ongoing improvemnts to the video office equipment, pretty much guarantee that for as good as it is now, it will only be getting better. And because of the infrastructure savings, chances of getting more for the same costs, or more services for less increase-in-cost, are much greater.
It's not a matter of "How much total?," it's more an issue of "Is it enough for the service provided to the most people?" and the answer is "yes" for the overwhelming majority of U-Verse users.
I am an AT&T employee and the postings on this site are my own and don’t necessarily represent AT&T’s positions, strategies or opinions.
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 11:49:00 AM
squareeyes wrote:thanks ox.
i'm kind of confused about att's mod involvement at this forum. i frequent the logitech harmony remote forum and their mods offer users critical help, explain updates and product quality issues. this forum's guidelines alludes to similar mod involvement with the clause in the forum guidelines page:
- We are here to help -
If you are new to the U-talk Forum and are unsure about anything, just post on the boards! The moderators and other participants are always happy to help. AT&T moderators are identified by a AT&T globe icon.
so far the only moderator "help" i've seen here is to politely remind some users to keep it courteous. are they of no other use at this forum? i would think it would go a long way toward building consumer confidence and a healthy user community if they could offer answers to questions like mine. it may help those users who are hanging in there for a service update to know an approximate wait time. i'd just like to know so i have something to look forward to-- switching back to uverse tv from cable once att irons out their quality issues.
Message Edited by squareeyes on 07-19-2009 10:58 AMMessage Edited by squareeyes on 07-19-2009 11:01 AM
The Moderators are here to modrate the forum; to facilitte the discussions and keep things civil (or at least out of the hands of laywers); they are not / may not be technically astute regarding the U-Verse technologies. From my experience on this forum (and many others), it appears that the technical stuff is left to the peers to discuss.
Mods need to be familiar with the web stuff and the frameworks (and the rules , and the company policies, ...), not the in-depth technical bit-twiddling (and if they are, all the better).
I am an AT&T employee and the postings on this site are my own and don’t necessarily represent AT&T’s positions, strategies or opinions.
Re: HD picture not even close to HD - too much compressio n
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07-19-2009 12:51:21 PM
mibrnsurg wrote:
Unluckily no Blu-Ray player to see what it would look like on my TV SomeJoe. Have seen Blu-Ray on LCDs and not been that impressed. On my Panasonic TH42PZ80U plasma w/anti-reflective filter, HDMI using 4 differentTV picture settings, Custom (using your HDNet calibration), Standard (customized to be a mild 'lightener' for dark scenes and programs), Game (customized to be a heavy 'lightener' for the same) and Cinema (default).
Also I sit 3 x diagonal distance away (10.5'-CNET's far seating position). In my recliner 9.5' away and at the computer 13' away. In the recliner I see more of the compression artifacts than I do at the computer. Any closer and I wouldn't be happy w/Uverse HD. I go through alot to get a good HD picture, since that's just me.
It's not pristine, I see the problems slightly of the background movement due to the frame refresh timing, but none of the 'stuttering' on sports fast motion. Pretty much no pixelazation or macroblocking (except that provided by the program) and find FOX HD pretty bad, except the All Star game was very good. Don't watch much of anything on NBC, so don't know about that. Stats are all 0 except some corrected blocks from POTS phone ringing to the answering machine and 510' from the VRAD all cat5e and ethernet patch cable.
OK. I think what we have to keep in mind here is your seating position and distance, because this probably affects your perception of the picture quality more than other people.
With a 42" screen, seated 9.5 feet away, your screen viewing angle (horizontal) is 18.2 degrees of arc. This is pretty small -- theaters are set up for 26 degrees of arc at the furthest seating position to 36 degrees of arc at the nearest seating positions (THX standards). The most comfortable viewing angle for people to generally watch in the theater is 28-30 degrees of arc.
In addition to this, the human eye can resolve details that are about 1 minute of arc (1/60th of a degree). Multiplying that out means that in your setup, your eye (at 9.5 feet from a 42" screen) can only resolve ~1100 horizontal pixels' worth of detail. Since the screen contains 1920 pixels of detail, your eye is missing almost half the detail on the screen at your viewing distance.
If an MPEG artifact like mosquito noise appears that only affects one pixel, you will not see it at your viewing distance.
Compare this to someone who has a 65" TV at a 9' viewing distance. This is 29.4 degrees of arc, with an eye-resolution of ~1760 pixels. These people will notice the single-pixel artifacts on the exact same picture that you're watching.
For you to see the same picture that they see, you need to be seated at only 6 feet from your screen.
If you were forced to sit at that distance from your TV all the time and have to watch that picture, you can see that the complaints of others become justified.










