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New HR44, odd "orange" skin tones.

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by Soulweeper, Sep 23, 2013.

  1. Stuart Sweet

    Stuart Sweet The Shadow Knows!

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    That sounds like you really went above and beyond on that. It's funny, I have one TV that is much more sensitive to different receivers and it's a 2007-model LCD. At one point I was told it had a 16-bit color processor where almost every TV made now has a 32-bit ones except the very cheapest.
     
  2. Soulweeper

    Soulweeper Icon

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    I tried looking into what mine has after reading this, and I found a page on calibrating a Samsung DLP
    http://www.gadgetbench.com/hlpnotes/
    which I don't intend to do at this point, but this part here says it's an 8 bit color processor:

    "When using an HDMI connection there are a few different formats that can be sent to the display. The most common are RGB (8-bit), YCbCr 4:2:2 (10-bit), YCbCr 4:4:4 (8-bit). The HLP will accept any of these formats, however they are all converted to RGB (8-bit) by the HDMI receiver chip. All data is passed through the set as RGB (8-bit), therefore there is no advantage from the set's perspective to receive any other format. One however may potentially choose another format if the source does a poor job with its RGB signal. In reality however it seems that devices get their YCbCr output wrong far more often than their RGB output. For instance many upconverting DVD players send an HD YCbCr signal using SD encodings resulting in a noticeable color shift on screen."

    if I'm understanding it correctly. It also uses a color wheel, for whatever that's worth. It's been a good set, but it is definitely old technology
     
  3. SomeRandomIdiot

    SomeRandomIdiot Godfather

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    That is because SD uses REC 601 colorspace and HD uses REC 709. The TV expects to see REC 709 on any HD connection (some do have a way to change this on an input buried in their menu). If the HD output is REC 601 or incorrectly converting REC 601 to REC 709 prior to output, you will have issues with colors.

    All DLPs use a color wheel, which had their own issues. It makes no sense that one would not have a color/tint setting, though possibly not labelled in those terms, as the bulb used on the DLP will change over time so those would be needed regardless.
     
  4. Soulweeper

    Soulweeper Icon

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    Jan 9, 2005
    It has a color adjustment, but tint is grayed out/not available, except with analog input. Seems odd to me too, but it's the way it is.
     
  5. Stuart Sweet

    Stuart Sweet The Shadow Knows!

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    To be clearer, you're talking about the color space, meaning 8 bits per channel where I am talking about the actual processor chip being a 16- or 32- bit model.


     
  6. LiQiCE

    LiQiCE Mentor

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    Feb 13, 2006
    Northern...
    Did you try one of your HR24-200s on the DLP to see if it also occurs on the HR24?

    Also how old is the bulb on your DLP? Could it simply be that the bulb is going - you can sometimes see strange results with an old bulb. Its possible you didn't notice the orange issue until you looked for it when your receiver changed?

    Personally, I had an HR24-500 and now have an HR44-700 and I do notice a picture quality difference, but mostly that there is better shadow detail on the HR44 than the HR24 (HR24 was crushing blacks) - I think that has to do with the HR24-500's RGB signal being incorrectly processed by my Pioneer Elite plasma (assuming 0-255 when the signal was 16-235). I don't notice any problems with skin tones being orange or anything else.
     
  7. Soulweeper

    Soulweeper Icon

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    Jan 9, 2005
    It's not the bulb, I replaced it not long ago. I'm going to experiment with my HR24 this weekend, but beyond the shadow of a doubt, it wasn't like this with the 34, as I noticed the orange "ish" tone right away. It was actually the first thing I did notice. We had the 34 swapped out because it was hanging up all the time when fast forwarding, rewinding, and going through the guide, and that's gone, but the orange tone is an issue. I can't say it's isolated to this particular unit, so I'm hesitant to just have Directv replace it, until I can experiment around with it a bit more.
     
  8. mridan

    mridan Godfather

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    I just had a HR44-500 installed on Saturday. No problems with orange skin tone. Viewing on an older model Panasonic plasma.
     
  9. Jason Whiddon

    Jason Whiddon Hall Of Fame

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    Aug 17, 2006
    After some more time with it, Im not seeing it as well. Just coming from the Hopper, I think PQ is quite good.
     

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