What is the point of HDMI 1.3??

Discussion in 'Playstation Forums' started by FunkyMonkey, Apr 20, 2007.

  1. FunkyMonkey

    FunkyMonkey
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    We all know the PS3 has HDMI 1.3. But why?

    Blu-Ray does not support Deep Colour so that reason is gone. In any case, would the graphics card on the PS3 allow 10-bit colour mode anyway???

    The sound is decoded on board, so any HDMI receiver with lossless audio support via HDMI will do.

    I am trying to establish whether the SACD signal (which is a DSD bitstream signal) is covnerted into a PCM signal before beign transmitted via HDMI from the PS3 or whether it can be sent "raw". Even if the former is the case, then that only requires HDMI 1.2.

    The only benefit appears to be the lip-syncing. Not knocking that, but am I missing something (else) as to why HDMI 1.3 is included on the PS3?

    In other words, which of the benefits of HDMI 1.3 are actually utilised on the PS3???
     
  2. fatfingers73

    fatfingers73
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    I thought the main reason was to get HD sound through a compatible receiver.
     
  3. anh_duong

    anh_duong
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    http://forum.blu-ray.com/showthread.php?t=3311
     
  4. FunkyMonkey

    FunkyMonkey
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    Very interesting, but that does nto clarify whether any of it is relevant to PS3??? :confused:
     
  5. FunkyMonkey

    FunkyMonkey
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    You only need HDMI 1.1 for that as long as the reciver accepts lossless audio through its HDMI port. But the 1.1 standard is enough to carry it.

    The 1.3 standard just allows the raw signal to be passed on to a receiver. However, the PS3 can decode on-board, hence a 1.1 receiver is adequate.
     
  6. anh_duong

    anh_duong
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    games might be able to use hdmi 1.3 from what i have read in the forums. not sure if it is true but seems plausible since gaming is not part of blu-ray spec.
     
  7. FunkyMonkey

    FunkyMonkey
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    Games might make use of Deep Colour, true. Plus, there might be downloads in the future. It's hardly likely to be mass usage though. But, hey they do say PS3 is machine of the future, so who knows what the future holds.
     
  8. 3rdDegree

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    That's interesting. If the PS3 has on-board decoders for audio, then in theory, it could output analogue HD Audio audio via separate RCA connections.

    Of course, no such lead exists, so it is only "in theory".
     
  9. markmitt

    markmitt
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    Just because Blu-Ray does not use Deep Colour from the HDMI 1.3 spec at the moment, it doesn't mean that the technology will not be adopted at some point in the near future. Don't forget that Blu-Ray discs capacity can and has already been expanded, meaning even more room for data storage. Perhaps at the moment this is one of the reasons that BD does not support Deep Colour. I would imagine though that once it is being utilised for movies/games that the difference will be quite staggering. Also, I believe that DTS Master Audio will be 1.3 compliant. Can't confirm that at the moment though due to no equipment available to decode the audio.

    Surely for those reasons alone, it is better that the PS3 is already equipped to be able to cope with the new standards than not...
     
  10. Tony Hoyle

    Tony Hoyle
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    Your eye can only resolve 24 bit colour anyway (not even that.. about half to two thirds of it) - deep colour is primarily for video editing. You'd need a very high end display to use it even then.. certainly not LCD which is only 18 bit. You're looking at something like SED technology.
     
  11. fatbloke99

    fatbloke99
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    It's about dealing with contouring, not gamut, isn't it?
     
  12. RobDickinson

    RobDickinson
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    How many displays can cope with the colour we have now, LCD & PLasma are poor at it.

    Mebe OLED if they ever get that working.

    HDMI 1.3 was as much a tickbox as anything but the PS3 will be produced for ~10 years may as well throw in the latest standard at launch.
     

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