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DVDO HD+ now accepts interlaced HDMI/DVI

Discussion in 'Projectors, Screens & Video Processors' started by gandley, Jun 12, 2005.

  1. gandley

    gandley
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    Josh from DVDO has now released a beta firmware (2.87 i think)
    This has at last added 480i/576i via HDMI/DVI (RGB 4:4:4). this has been fully tested with the Arcam DV79. so at last the interlaced HDMI signal can now be processed.
    Maybe someone can expand why its RGB 4:4:4 and not YPbPr 4:4:4?

    Still will need a brave soul with the pio 868 to further test.

    http://www.dvdo.com/update/beta_agreement.html
     
  2. Chris5

    Chris5
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    I could be 'that man'!
     
  3. gandley

    gandley
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    so i take it then YPbPr colour space was not possible with the HD+ but will be a feature of the new scaler when it arrives later this year from DVDO

    Last time i set the 868i to RGB output via HDMI my PJ went a bit screwy but was fine with YPbPr via HDMI, so just a little concerned with hearing RGB only i guess

    What can the lumagen do with an interlaced HDMI signal? just RGB or YPbPr and can it proceses both 480i/576i?
     
  4. Chris5

    Chris5
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    Ok, after a couple of heart stopping attempts to update my HD+, I succeeded.

    The good news it that 576i from the 868 works as well (in RGB mode only).

    The bad news, However I think the interlace shimmering is much worse than what the pioneer can produce in progressive mode.

    When I watched the beginning scenes from Mummy where
    1. Just after the main character gets chased around the ruin, and looks back over his shoulder to see the Majii on the cliff above him. the rocks/sand shimmer on the desert floor in front of him.

    2. The next scene where the camera starts panning to the right to the outside entrance of the museum, there is a pillar made up of bricks.The gaps between the bricks shimmer in 576i mode, but are rock solid in 576p mode

    Also the 'film mode' menu is still grayed out, when receiving 576i from DVI,
    so I dont know what mode it is in. could this be a bug in the new software?
     
  5. Gordon @ Convergent AV

    Gordon @ Convergent AV
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    The Lumagens can accept 480i/576i as YPrPb 4:2:2 or RGB 4:4:4 via their DVI socket.

    Gordon
     
  6. Dale Adams

    Dale Adams
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    The iScan hardware can handle a 4:2:2 or 4:4:4 YCbCr DVI input. (Actually, it's always been able to do this.) It's the software in the new release that's limited to RGB, not the hardware. I believe that the software to deal with all the HDMI variations wasn't finished for this beta release, but that they wanted to get a 480i/576i capable release out sooner rather than later in order to get some compatibility feedback from iScan users.

    - Dale Adams
     
  7. gandley

    gandley
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    Thanks for the feed back all, YPrPb could well follow then in a more mature firmware release.

    Which chip are the lumagens based on? sil504?

    Chris the shimmering may just be due to the infancy of the beta firmware, as its not somthing you would expect to see with the HD+, sounds more like the signal is been passed thru without been deinterlaced??
     
  8. Chris5

    Chris5
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    any thoughts on our slanderous remarks Dale? :)
     
  9. Dale Adams

    Dale Adams
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    I'm not in the office now (and won't be for several days), so I can't verify any of the problem reports. The grayed-out film mode option does sound like a bug, and may be related to the flicker/shimmer you're seeing. Try sending an email to Josh@dvdo.com and see if he can shed any light here.

    - Dale Adams
     
  10. Josh@dvdo

    Josh@dvdo
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    'Film-mode' is grayed out in the beta software version 2.87. This is a bug and will have to be corrected in the next software version.
     
  11. Chris5

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    Ah, that is a shame.

    On another note, generally, I think the picture quality is better with this beta, as apposed to 2.32. (with SDI @ 576i) although I can't quite put my finger on it, maybe motion compensation is better?. Is this a placebo type effect, or should I see genuine picture improvements?

    Thanks for you help

    Chris
     
  12. artoj

    artoj
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    Has anyone tried this against SDI-input HD+ ? - I´m about to buy a SDI´t Pihilips SA963 A or should I buy instead of it f.ex Pioneer 868i or similar :eek:
     

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