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MPEG-4 Issue?

Discussion in 'DIRECTV General Discussion' started by Crypter, Oct 9, 2007.

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  1. Crypter

    Crypter Godfather

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    Jun 21, 2007
    Has anyone else noticed on some of the new HD Channels that whenever there is a dark scene or a not so well lit scene that colors start to look painted and almost a little cartoonish? Is this a side affect of MPEG-4? I have not seen this happening on my HD-DVD movies and they all use MPEG-4. I it because of the lower bitrate?

    Anyhow I have a 61" 1080p TV so maybe I just notice it more than some folks.
     
  2. ccsoftball7

    ccsoftball7 Godfather

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    Apr 2, 2003
    If your noise reduction is set too high, that could be the cause as well.
     
  3. Crypter

    Crypter Godfather

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    Jun 21, 2007
    Well I thought that would be the issue so I disabled Digital NR on my TV but I still notice it a little. Although that did help it a bit.
     
  4. RichH25

    RichH25 AllStar

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    Jun 16, 2007
    I have a 60" Pio plasma and have not noticed this. What is the make and model of your set?
     
  5. phat78boy

    phat78boy Hall Of Fame

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    Sep 12, 2007
    Are you upconverting everything to 1080P or displaying natively?
     
  6. Crypter

    Crypter Godfather

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    Jun 21, 2007
    I have a Samsung HL-R6178W It's a DLP

    No, I am converting everything to 1080i (since Hr20 doesn't allow 1080p output)
     
  7. PTravel

    PTravel Legend

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    Oct 5, 2007
    I've noticed the same thing. I'm not an expert on satellite TV, but I do know quite a bit about video. The posterization looks to me like a compression artifact, i.e. the signal may be over-compressed. This is not an mpeg4-specific problem. I've seen it on standard definition DVDs, which use mpeg2. The original Spiderman DVD release has this problem.
     
  8. RichH25

    RichH25 AllStar

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    Jun 16, 2007
    Do you have either DNIe or the Color Weakness Enhancement feature turned on? If so, turned them off. These adaptive systems tend to have a negative impact on a good quality signal.

    Also, have you ever had your set ISF calibrated? If not, it can do wonderful things for the picture.
     
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