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How does the HD picture quality of D* and E* actually compare?

Discussion in 'DIRECTV General Discussion' started by skatingrocker17, Mar 19, 2011.

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  1. Mar 20, 2011 #41 of 142
    sigma1914

    sigma1914 Well-Known Member DBSTalk Club

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    What's weird is our ABC (WFAA) is one of the rare ABC stations who sends out 1080i. I wonder if that's a good idea or not? The PQ is damn good, though.
     
  2. Mar 20, 2011 #42 of 142
    Rich

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    OK, so I have a #14 wire capable of carrying 15 amps on a 20 amp breaker. Or do you mean I have a #14 wire on a 15 amp breaker?

    In the first case the #14 wire will fail if you shoot 20 amps thru it. In the second case the 15 amp breaker will kick out if you try to shoot 20 amps thru it.

    I don't get the analogy. I do understand that only so much bandwidth is available, but what governs that availability? That's where I go blank.

    Rich
     
  3. Mar 20, 2011 #43 of 142
    Rich

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    Yeah, electricity I understand. What I don't get is what prohibits the production of more bandwidth?

    Rich
     
  4. Mar 20, 2011 #44 of 142
    sigma1914

    sigma1914 Well-Known Member DBSTalk Club

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    For the longest time I kept Native 'off' and kept output at 1080i. One day after getting a new plasma I read that it's best to use 'Screen Fit' (tv option) and Native 'on.' WOW!!!!! I had no idea what I was missing.
     
  5. Mar 20, 2011 #45 of 142
    Hutchinshouse

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    Good point! That too.
     
  6. Mar 20, 2011 #46 of 142
    HoTat2

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    Technically cheating, yes, with the assumption you won't notice the cheat :)

    Dish really has no choice but to improvise on things this way to save on bandwidth since they have chosen not use the additional Ka band for their HD channels. Thereby everything, SD and HD, must be squeezed onto the Ku band somehow.
     
  7. Mar 20, 2011 #47 of 142
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Let's shift this to a pie.
    The pie is a fix size [bandwidth, number of SATs, etc.] so all you can do is change the size of each slice to give everyone a piece.
    More channels or a bigger pieces of the pie. Those are the only options.
     
  8. Mar 20, 2011 #48 of 142
    Rich

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    See how simple you can make things when dealing with a dolt?....:lol:

    I got it now. Thanx.

    Rich
     
  9. Mar 20, 2011 #49 of 142
    dsw2112

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    Bandwidth is determined by a number of factors. To keep the analogy straightforward CAT5 might be #14, CAT6 #12, fiber optic #8, etc... It's not as simple as electricity where wire size is the main factor. Just as #12 is rated for 20 amps, CAT5 also has its "rating." This is drastically oversimplified, but I hope that makes sense.
     
  10. Mar 20, 2011 #50 of 142
    veryoldschool

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    So I was thinking of how to show how this works.
    If you connect an S-Video cable to your receiver and TV, then select an HD channel.
    Change the TV input to the S-Video and don't have it set to stretch.
    You'll see a scrunched image. This would be close to what the transmission image would look like.
    Now change your TV to stretch this image to full screen.
    How much difference, other than size, do you see?
     
  11. Mar 20, 2011 #51 of 142
    billsharpe

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    Sure can't see the difference, which is what the OP originally asked, on my 40-inch screen with DirecTV vs. my daughter's 40-inch screen with Dish. Not a side-by-side comparison -- we're on different coasts. :D

    You may be right for larger screen sizes.
     
  12. Mar 20, 2011 #52 of 142
    lparsons21

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    At one time, I had both D* and E* hooked to my 61" JVC rear projection HD TV. There is a difference between the two on that set. But the difference was minimal with only a very slight edge to D*, imo.

    Others that saw it agreed that the difference was slight, and slightly better on D*. But for SD, E* wins hands down. D*'s SD is horrid.
     
  13. Mar 20, 2011 #53 of 142
    SomeRandomIdiot

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    As noted above E* converts 1920x1080 to 1440x1080 and uses less bandwidth. Its somewhat softer than D*.

    HOWEVER, D* has an issue with their MPEG4 encoders and 1280x720p channels where the top half of the frame shifts about every 30 minutes. You can clearly detect that something "flashed" on your screen, but cannot tell what it is unless you pause a DVR and step through it.

    The 720p channels include all the ABC/Disney/ESPN HD Channels and Fox News/Sports/Entertainment Channels as well as a handfull of others.

    This started probably 3+ years ago - and seemed to be corrected about 2 years ago, but it came back again about 12 months ago and has not been fixed for some odd reason (in fact it seem a bit more frequent than several years ago).

    SD is downrezzed on D* to 480x480.....SD-LITE and it is the worse of any provider.

    So its between a slightly better Non-Sports selection and slightly softer picture on E* 720p channels vs. a slightly better picture with a slight glitch roughly every 30 minutes on D* with not as much Non-Sports Variety (and worse SD Quality).

    Obviously, the Sports fan will choose D*.
     
  14. Mar 20, 2011 #54 of 142
    SomeRandomIdiot

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    Think of it this way......1920x1080 is 16x9 with a 1.78 Ratio (1920/1080).

    1.78 is the Proper Ratio for a 16:9 HDTV screen.

    1440x1080 is a 1.33 Ratio, (1440/1080) which is the ratio you normally see in a 640/480 4:3 SD TV Screen.

    To get 1920x1080 down to 1440x1080 you need to get rid of 25% of the lines (1.78 x 75%)

    One the backside, get it to fill the 16:9 screen you need to STRETCH it.

    Thus out of every 16 lines, E* needs to discard every 4th line and stretch the remaining lines to fill the screen.

    That is one of the reasons why E* looks softer - just as a good quality SD DVD stretched out to 16:9 on a HDTV looks softer than a HD BluRay due in part to the number of missing lines in the SD DVD, E* has the same issue when compared to D* 1920x1080i HDTV.
     
  15. Mar 20, 2011 #55 of 142
    br408408

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  16. Mar 20, 2011 #56 of 142
    Rich

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    It does. Still a bit befuddled, gotta process all this.

    Rich
     
  17. Mar 20, 2011 #57 of 142
    JcT21

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    i am a new directv customer after being with dishnetwork for many years. hd quality is good on both and if there is a difference its minimal and not noticeable. however when it comes to sd, dishnetwork is best. the sd on directv is horrible. i cant believe how bad the sd really is on D* compared to dishnetwork and even cable. some sd channels on my 42 inch samsung is almost like watching blury internet video.
     
  18. Mar 20, 2011 #58 of 142
    br408408

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    With satellite tv it's three competing issues:

    1. Picture quality
    vs
    2. Number of channels
    vs
    3. Keeping the providers costs down.

    You can't have all 3 at once. Adding more of 1 and 2 requires more bandwidth, and more bandwidth requires money (more satellites with more transponders, more ground equipment to uplink to the new satellites, and maybe new dishes and receivers to see the new satellites).
     
  19. Mar 20, 2011 #59 of 142
    harsh

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    This argument only holds water if you're not relegated to watching something in SD.
     
  20. Mar 20, 2011 #60 of 142
    veryoldschool

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    I know the pixel count is very low, but the SD channels that I watch aren't that bad, but this may be due to my TV being able to scale them better.
    Even the 16:9 SD programs I can zoom to full screen [46" TV] and don't look anywhere near as bad as internet video.
    I use "native on" so all the scaling is don't by my TV. YMMV
     
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