1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Cable HD vs Satelite HD?

Discussion in 'HDTV discussion' started by mord, Jan 2, 2007.

  1. mord

    mord Regular member

    Joined:
    Sep 9, 2005
    Messages:
    123
    Likes Received:
    0
    Trophy Points:
    26
    which one's got the better picture? directTV and other DS companies always say that they deliver superior quality to cable...so is this true...is the picture quality better or is it about the same?
     
  2. sdifox

    sdifox Regular member

    Joined:
    Dec 30, 2003
    Messages:
    116
    Likes Received:
    0
    Trophy Points:
    26
    They both suck compared to Over The Air HD.
     
  3. cheezzzz

    cheezzzz Regular member

    Joined:
    Feb 23, 2003
    Messages:
    288
    Likes Received:
    0
    Trophy Points:
    26
    He didn't ask that.
    However, DirecTV is sometimes called HD Lite from what I have read.

    cheezzzz
     
  4. diabolos

    diabolos Guest

    Its close. But in my area DirecTV seems to suck less than TWC-HD. I will say that Dish Net doesn't look as good as DirecTV but they have about twice the HD content.

    Ced
     
  5. sdifox

    sdifox Regular member

    Joined:
    Dec 30, 2003
    Messages:
    116
    Likes Received:
    0
    Trophy Points:
    26
    Until they both switch over to mpeg4, they don't have enough bandwidth. So they compress the signal.
     
  6. diabolos

    diabolos Guest

    First everyone uses compression, its when they compress the signal to much that things get bad. Don't think OTA HD is better because its uncompressed it isn't. The OTA HD (ATSC) channels are just sent out at a higher bit-rate. They still use MPEG-2 compression.

    DirecTV has switched to MPEG-4 so they are offering the best picture quality (from a source other than OTA) at the moment. Dish Net is still better than most HD-Cable services though and they have more HD channels than anyone else.

    Ced
     
    Last edited by a moderator: Jan 3, 2007
  7. sdifox

    sdifox Regular member

    Joined:
    Dec 30, 2003
    Messages:
    116
    Likes Received:
    0
    Trophy Points:
    26
    I guess I should have been more verbose. I figured everyone knows atsc is based on mpeg2.
     
  8. diabolos

    diabolos Guest

  9. mord

    mord Regular member

    Joined:
    Sep 9, 2005
    Messages:
    123
    Likes Received:
    0
    Trophy Points:
    26
    how come comcast has higher bitrate than directv, or is this because of mpeg2 and 4?

    HD-Cable (Comcast):
    Compression Codec: MPEG-2
    Bit Rate: 17-18 Mbps (with Statistical Multiplexing)


    HD-Satellite (DirecTV):
    Compression Codec: MPEG-4
    Bit Rate: 8-10 Mbps (with Statistical Multiplexing)
     
  10. eatsushi

    eatsushi Regular member

    Joined:
    May 7, 2006
    Messages:
    572
    Likes Received:
    0
    Trophy Points:
    26
    When I record HD programs from my Comcast HD DVR thru firewire using CapDVHS I usually get 20 - 24 Mbps depending on the program. I never get anything below 20 Mbps.
     
  11. diabolos

    diabolos Guest

    Yes MPEG-4 requires less (about half) bits to accomplish the same goals as MPEG-2. HD DirecTV looks as good or better than most HD Cable providers.


    Thats strange seeing as HDTV (ATSC) only goes up to 19.39 Mbps (per 6 MHz band). Also Comcast claims to run all its HD channels at ~19.39 Mbps not 20 - 24 Mbps.

    ATSC:

    Wikipedia
    http://en.wikipedia.org/wiki/ATSC

    Ced
     
  12. error5

    error5 Regular member

    Joined:
    Feb 22, 2006
    Messages:
    324
    Likes Received:
    0
    Trophy Points:
    26
    I'm using CapDVHS right now to record an episode of House and it does say 25 Mbps (from a Comcast/Motorola DCT6412).

    Added: I tried other non 5c encrypted stations and all showed 25Mbps - both 720p and 1080i. Could it be that 19.39 Mbps is the signal that goes into the HD cable box and the 25Mbps is the signal that goes out thru the firewire connection to the PC? Anyone have any ideas?
     
    Last edited: Jan 9, 2007
  13. diabolos

    diabolos Guest

    It could be but the strange part for me is why. I don't see an advantage to it or cause for it.

    Maybe it the way the Motorola Box does up-conversion?

    Ced
     
  14. eatsushi

    eatsushi Regular member

    Joined:
    May 7, 2006
    Messages:
    572
    Likes Received:
    0
    Trophy Points:
    26
    Ced: I did try CapDVHS again this morning and I get the same results as error5 24 - 25 Mbps. It could be the way the software reads the signal or also maybe the way the cable box processes the signal prior to firewire transmission. Strange huh?
     
  15. dabig25

    dabig25 Regular member

    Joined:
    Aug 31, 2004
    Messages:
    671
    Likes Received:
    0
    Trophy Points:
    26
    I started this same question on another forum...........

    Here's what I got about when it comes to the HD programming.

    Quote :

    Ah, HD Lite, the reason I left DirecTv.
    They do not transmit the full 1920 x 1080 picture, they compress it down to something on the order of 1280 x 1080. For a 720 tv you probably will never notice it but you have a 1080!


    Quote :

    If you had a 720 tv, which you don't, you probably wouldn't notice it. Since you have a 1080, you are more likely to .
     

Share This Page