Does Dish downrez HD channels?

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Smith said:
Sling is not the tool for measure - it's convert from ANALOG to digital by its own guts. ALL your numbers are Sling's numbers, not from Dish.
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That wasnt sling software I was viewing ;) Remember I still have contacts who work in certin areas that are allowed engeneering data, as well as engneering screens that even the hackers cant see! I just choose to keep them quiet and out of trouble! :) Remember Echostar is using VBR on thier transponders (variable Bit Rate) so it could be possable to have 5 channels doing 6 per transponder if all needed the same amount of bandidth. And keep in mind this is MPEG 4 that were talking about! Rocky also did bring up a good point that I didnt think of about the mpeg4. I tend to forget that dish isnt using mpeg2 anymore on its hd stuff. I would like to see dish fully use the harmonic encoders they have to there fullest potental and bring them to full rez 1920 x 1080I and up the bandwidth. But you can only work with what you got! Sadley to say untill dish does some bandwidth relocation over at western arch (ie move mpeg2 sd channels to mpeg4) we will continue to see this. We also need so see some launches. Bring on the rocket fule!
 
You can be "downrez'd" and still have the same number of pixels. All DCT-based compression methods works by throwing away high frequencies. The more high frequencies your throw away, the less detail you have. That's exactly what you see on a channel like CBS-C - full 1920x1080i but with very little detail.
 
"as well as engneering screens that even the hackers cant see" - nay, it's not a matter of hacking, there is no FW with such 'screens'.
TSReader is the first tool, then debug ports on some models ;) and R5000-HD.
 
goaliebob99 said:
That wasnt sling software I was viewing ;) Remember I still have contacts who work in certin areas that are allowed engeneering data, as well as engneering screens that even the hackers cant see! I just choose to keep them quiet and out of trouble! :)
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God Bob -- you sound like memories of mojo.
 
Well, dish hd hour programs are like 2 to 2.5gb's, while my local Mpeg 2 OTA is 7.5 to 8.5. While I understand that mpeg 4 is more efficient, anyone that looks at TP's can tell Dish is cramming them on, which means more compression.

Any fast moving stuff on 1080i programs just turns into fuzz. Directv, on the other hand, is not as bad.

Dish is the hd compression leader.
 
I just checked CBS C and FTV. FTV is still 1920x1080i, CBS C was 1440x1080i. If there are few individual channels that people want me to check I'll look, but I'm not going to scan every HD channel I receive.
 
Nowadays almost if not all content providers distribute in MPEG4 that is statistically multiplexed with 4 HD channels per Motorola DSR-6000 giving 8 to 10 HD channels per 36 MHz c-band transponder. Dish held off and did not buy H.264 encoders for the premium and other channels to compete with DirecTV new 100 HD Channels offering a few years back and stayed with transcoding to a lower resolution mpeg2 till the content providers distribute in MPEG4, so, as Charlie has said, DISH just passes through what they get. No way could DISH de-mux the stream the content providers distribute in MPEG4, transcode, statistically re-multiplexed in real time with out huge degradation in picture quality and DISH does not have the HD H.264 encoder's to do the transcoding to a lower resolution anyway.

DirecTV signed a $9 million on a deal with Tandberg Television for MPEG-4 encoding technology but went with Harmonic Electra 7000 HD H.264 encoder's better performance, to be able to transcode 100 mpeg 2 HD video streams to mpeg4 to fit on their newly launch satellite D10. At that time DirecTV had transcoded mpeg2 to mpeg4 that looked better then what DISH had, mpeg2 transcoded to a lower resolution, but that was then and now is now and its a whole different story.

Motorola: Programmer Distribution Trends
 
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BuddyBoy said:
I just checked CBS C and FTV. FTV is still 1920x1080i, CBS C was 1440x1080i. If there are few individual channels that people want me to check I'll look, but I'm not going to scan every HD channel I receive.
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Check Palladia and the HDNets if you would... those are some that look the best to me on both providers... ;)
 
JimK2 said:
Nowadays almost if not all content providers distribute in MPEG4 that is statistically multiplexed with 4 HD channels per Motorola DSR-6000 giving 8 to 10 HD channels per 36 MHz c-band transponder. Dish held off and did not buy H.264 encoders for the premium and other channels to compete with DirecTV new 100 HD Channels offering a few years back and stayed with transcoding to a lower resolution mpeg2 till the content providers distribute in MPEG4, so, as Charlie has said, DISH just passes through what they get. No way could DISH de-mux the stream the content providers distribute in MPEG4, transcode, statistically re-multiplexed in real time with out huge degradation in picture quality and DISH does not have the HD H.264 encoder's to do the transcoding to a lower resolution anyway.

DirecTV signed a $9 million on a deal with Tandberg Television for MPEG-4 encoding technology but went with Harmonic Electra 7000 HD H.264 encoder's better performance, to be able to transcode 100 mpeg 2 HD video streams to mpeg4 to fit on their newly launch satellite D10. At that time DirecTV had transcoded mpeg2 to mpeg4 that looked better then what DISH had, mpeg2 transcoded to a lower resolution, but that was then and now is now and its a whole different story.

Motorola: Programmer Distribution Trends
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They have to break them down, since their transponders are different bitrates and they are not running them on the same transponder loading. If they didn't break them down then they would be overunning the transponder bitrates.
 
Hemi 6.1 said:
I agree completely! FIOS for someone who has never had a chance to see it in full force. Is like watching D* best HD channel, and Improving the PQ another step futher. Fios is the Blu Ray of the televison providers.
I wish I could have it.:( Fios is the only reason I love going to my IN-Laws.:D
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After having FIOS a few weeks I would have to say that D* PQ was pretty good, but I saw it deteriorate slightly as they added a lot more Mpeg4. Still its not bad at all. On FIOS though you can tell what channels are the fault of the provider and what channels have problems at the source.
 
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