Audio Formats ???

Discussion in 'Archived Threads 2001-2004' started by BrettB, Aug 14, 2001.

  1. BrettB

    BrettB Producer

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    At the risk of sounding stupid... [​IMG]
    Could someone explain the nomenclature for audio formats on DVD's or point me to a site that has a good explanation. One thing I'm confused about is mono. Is there 1.0 mono and 2.0 mono, if so what's the difference? Also, I just got The Natural, 4.0? 3 across the front and 1 split for the rear surrounds?
    And it doesn't help that my Sony uses a completely different system [​IMG]
    Any help would be appreciated.
    Brett
     
  2. Scott Merryfield

    Scott Merryfield Executive Producer
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    DD1.0 mono is a single mono channel directed to the front center channel. DD2.0 mono is the same mono signal directed to the left/right front channels.
    DD2.0 can represent several different formats -- mono spread across the L/R front, stereo (still L/R front), or Dolby Surround encoded in two-channels.
    DD4.0 is usually three discreet channels across the front (L/C/R), with a single mono surround channel. This is similar to Dolby ProLogic in effect, but using discreet channels instead of relying on DPL to decode the two-channel signal.
    In theory, any of the above formats could include a .1 channel for low frequency effects (LFE), although this is not very common (especially for DD1.0 or DD2.0). I'm sure some other member can site some examples, though.
    DD5.1 is five discreet channels (L/C/R front and L/R back), with a LFE channel. DD5.0 is the same, but without the LFE.
    I always get the nomenclature for the "six channel" formats mixed up (which is ES vs. EX), so I will leave that to someone else.
    ------------------
    My DVD Collection
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    [Edited last by Scott Merryfield on August 14, 2001 at 11:59 AM]
     
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    Charles Bober Stunt Coordinator

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