Video Asylum

• here are the numbers - Joe Murphy Jr 18:48:36 01/23/08 (0)
  In Reply to: RE: I thought optical didn't have the bandwidth to handle 1080p video + high res audio NT posted by Jazz Inmate on January 22, 2008 at 21:35:43

  HDMI started out at 165MHz and HDMI 1.3 moves it out to about 340MHz. Below is a link to the bandwidth numbers (not in feet, but in kilometers) for non-TOSlink
  

  • fiber optic cable   (Open in New Window)

  
  

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• Toslink can't handle the bandwidth, that doesn't mean another optical standard couldn't support it. - oscar 04:47:28 01/23/08 (2)
  In Reply to: RE: I thought optical didn't have the bandwidth to handle 1080p video + high res audio NT posted by Jazz Inmate on January 22, 2008 at 21:35:43

  E.g. Meitner has their own proprietary standard to transfer DSD from DAC to preamp.
  
  

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  • True, but labels and studios have piracy concerns and a technology like HDMI is very important to them NT - Jazz Inmate 09:35:17 01/23/08 (1)
    In Reply to: RE: Toslink can't handle the bandwidth, that doesn't mean another optical standard couldn't support it. posted by oscar on January 23, 2008 at 04:47:28

    
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    "I have found that if you love life, life will love you back." -Arthur Rubinstein (1887-1982)
    
    

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    • the connection method means nothing to the studios - Joe Murphy Jr 18:37:30 01/23/08 (0)
      In Reply to: RE: True, but labels and studios have piracy concerns and a technology like HDMI is very important to them NT posted by Jazz Inmate on January 23, 2008 at 09:35:17

      It's the HDCP that makes them run around in circles and pee on themselves.
      
      The HDMI connector is only one means to transfer data and a copy protection scheme to go along with it. HD-SDI can carry the video that HDMI does, the 8 channels of 24/96 audio that HDMI does and, with little effort, a copy protection scheme (though none are used today). It's also a more robust method than HDMI for transferring signals: SDI protocols allow for 1000ft, while HDMI, over copper, is rather limited for 1080p60 (about 50ft for the very best cables) unless add-on signal boosters are used (not very cost efficient).
      
      

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