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MPEG2 -> MPEG4 Transition Discussion: HD Theater


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27 replies to this topic

#1 OFFLINE   Stuart Sweet

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Posted 28 July 2008 - 10:00 PM

This is the discussion thread for HD Theater's MPEG-4 transition. Please log all issues, indulge in gleeful exhortations, and give your suggestions!
Opinions expressed by me are my own and do not necessarily reflect
those of DBSTalk.com, DIRECTV, DISH, The Signal Group, or any other company.

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#2 OFFLINE   Stuart Sweet

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Posted 31 July 2008 - 03:53 AM

Please commence discussing!
Opinions expressed by me are my own and do not necessarily reflect
those of DBSTalk.com, DIRECTV, DISH, The Signal Group, or any other company.

#3 OFFLINE   Grydlok

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Posted 31 July 2008 - 04:11 AM

Still a blank screen
Hypocrites with fake rumors need not apply.

#4 OFFLINE   Grydlok

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Posted 31 July 2008 - 05:01 AM

I re frame from judgment since the shown movie isn't in HD.
Hypocrites with fake rumors need not apply.

#5 OFFLINE   ccr1958

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Posted 31 July 2008 - 05:22 AM

Disc. HD Theater working here

#6 OFFLINE   digitalfreak

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Posted 31 July 2008 - 05:44 AM

Does the PQ look any different from the MPEG-2 version?

#7 OFFLINE   tonyd79

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Posted 31 July 2008 - 05:57 AM

Does the PQ look any different from the MPEG-2 version?


On Sunrise Earth, I could see greater detail and less graininess especially on panoramic shots.
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#8 OFFLINE   Bofurley

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Posted 31 July 2008 - 07:37 AM

Absolutely! Much greater picture quality!

#9 OFFLINE   MikeR7

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Posted 31 July 2008 - 08:15 AM

On Sunrise Earth, I could see greater detail and less graininess especially on panoramic shots.


I also switched back and forth for Sunrise Earth and the difference was definitely notable with a sharper, crisper picture. :)

#10 OFFLINE   ChrisPC

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Posted 31 July 2008 - 10:07 AM

It looks better to me, but not as much as some of the other channels. I think their shows are mostly mastered in MPEG2.

#11 OFFLINE   Jimmy 440

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Posted 31 July 2008 - 10:15 AM

I think it looks quite a bit better than it was.Still watching.

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#12 OFFLINE   photostudent

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Posted 31 July 2008 - 10:22 AM

It looks better to me, but not as much as some of the other channels. I think their shows are mostly mastered in MPEG2.


Sitting 6 feet from my 42" plasma I could not tell any difference. Maybe a bigger screen, being closer, or having LCD might be a different story for others. Must remember MPEG4 codac will mean more HD down the road. Will have to "curb my enthusiasm" for a few more weeks.

#13 OFFLINE   hdtvfan0001

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Posted 31 July 2008 - 11:29 AM

The challenge with doing "comparisons" are that different people have different equipment, and more important....image quality is dependent on the quality of the original source material, which varys.
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#14 OFFLINE   ChrisPC

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Posted 31 July 2008 - 11:32 AM

Sitting 6 feet from my 42" plasma I could not tell any difference. Maybe a bigger screen, being closer, or having LCD might be a different story for others. Must remember MPEG4 codac will mean more HD down the road. Will have to "curb my enthusiasm" for a few more weeks.


I had to look right at my 37" LCD from a few inches away to tell a difference, and that was only on fast moving scenes.

#15 OFFLINE   tonyd79

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Posted 31 July 2008 - 11:58 AM

I had to look right at my 37" LCD from a few inches away to tell a difference, and that was only on fast moving scenes.


Yes but if you can see it at all, it means the picture experience will be better overall. Sometimes I cannot quantify it but I can see that some pictures just look more "real" so I look at specific things to see if the quality is better. Text or small details a noisy environment (like a crowd scene or panoramic view) will help determine PQ. Also, dark to light and light to dark transitions.

Most of the MPEG2 PQ was acceptable and if you were just watching material that was good enough to hold your interest based on the content, you wouldn't notice the PQ. But a lot of the MPEG4 stuff will make you sit up and take notice. An example on ESPN2 this morning was Mike and Mike. A lot of the ESPN studio stuff looks artificial but the details seem there. This happens on my Comcast hookup as well. But this morning, it looked like Golic was sitting in my living room. Much better than I anticipated.
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#16 OFFLINE   dcowboy7

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Posted 31 July 2008 - 12:53 PM

But this morning, it looked like Golic was sitting in my living room.


i hope u had alot of donuts n bagels.

#17 OFFLINE   CoachGibbs

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Posted 31 July 2008 - 03:32 PM

I'm pretty sure HD Theatre was changed back to 1920x1080 after Malone got control. So it was pretty good for MPEG2 via D*, hence not a big leap with MPEG4. Just a better bitrate.

#18 OFFLINE   RunnerFL

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Posted 31 July 2008 - 03:39 PM

The challenge with doing "comparisons" are that different people have different equipment, and more important....image quality is dependent on the quality of the original source material, which varys.


Understandable but if someone is switching back and forth between the channel in the 70's and the Mpeg4 channel, on the exact same equipment, and notices a difference then I'd say there is a difference.
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#19 OFFLINE   hdtvfan0001

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Posted 31 July 2008 - 04:14 PM

Understandable but if someone is switching back and forth between the channel in the 70's and the Mpeg4 channel, on the exact same equipment, and notices a difference then I'd say there is a difference.

I still think its very close to the same on both channels....I compared them via 2 sets - 1 on one channel and the other on the new MPEG4 channel for the same program at the same time.

I can see a bit more difference on ESPNHD than on HD Theater.
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#20 OFFLINE   RunnerFL

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Posted 31 July 2008 - 05:12 PM

I still think its very close to the same on both channels....I compared them via 2 sets - 1 on one channel and the other on the new MPEG4 channel for the same program at the same time.

I can see a bit more difference on ESPNHD than on HD Theater.


Not to knock your test but comparing using 2 sets isn't the same as comparing using 1 set. Yes, you'll see differences in quality when comparing channels using 2 sets, that's a given. However if you see differences comparing channels using the same set, same dvr then I'd say it's the channel that made the difference.

As far as comparing ESPNHD to HD Theater I can see where you'd see more difference with ESPNHD. HD Theater already had a pretty good picture, ESPNHD did not.
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#21 OFFLINE   gfrang

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Posted 31 July 2008 - 06:47 PM

The pq looks great right up there with blu ray imo. Are these on D11?

#22 OFFLINE   hasan

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Posted 31 July 2008 - 07:39 PM

The pq looks great right up there with blu ray imo. Are these on D11?


If 206, yes. (Also 209:ESPN2HD, 245:TNT, 259:UHD, 281:HDTheater, 306:HDNet, and 552:HDNet Movies
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#23 OFFLINE   purtman

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Posted 31 July 2008 - 07:43 PM

i hope u had alot of donuts n bagels.



Not anymore!

#24 OFFLINE   hdtvfan0001

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Posted 31 July 2008 - 08:05 PM

Not to knock your test but comparing using 2 sets isn't the same as comparing using 1 set. Yes, you'll see differences in quality when comparing channels using 2 sets, that's a given. However if you see differences comparing channels using the same set, same dvr then I'd say it's the channel that made the difference.

As far as comparing ESPNHD to HD Theater I can see where you'd see more difference with ESPNHD. HD Theater already had a pretty good picture, ESPNHD did not.

I mis-spoke...I meant 2 receiver units, not 2 sets....both shown on the same 55" HD display.

I'd also agree that ESPNHD had more potential for improvement, and now shows it is improved clearly. I still think HD Theater is very good, but not a noticable change.
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#25 OFFLINE   syphix

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Posted 31 July 2008 - 09:00 PM

Remember: we have no clue how much compression is already in the signal on ANY channel when DirecTV picks it up, converts to MPEG4 and sends to us.

Results WILL vary from channel to channel...depending on their provider, most likely.
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