How does Center channel decoding work?

Discussion in 'Archived Threads 2001-2004' started by Aaron_Morris, Dec 14, 2002.

  1. Aaron_Morris

    Aaron_Morris Stunt Coordinator

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    Appologize if this should have been posted somewhere else...
    How does center channel decoding work when the input is stereo? I am fairly sure that it isn't just a sum of L and R otherwise it would have L only sound in it. Does anyone know how something like Pro Logic combines the left and right channels common sounds for a center? Thanks in advance for any insight.
     
  2. Patrick Sun

    Patrick Sun Moderator
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    DPL steers the common in-phase Left and Right signals into the Center channel, and steers the Left-only signal into the left channel, and the same with the right channel. DPL also steers the not-in-phase left and right signals for the back channel.
     
  3. Aaron_Morris

    Aaron_Morris Stunt Coordinator

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    Thank you sir. I suppose DPL is not the only form, right? Is there another way that another group has come up with? Non-Dolby?
     
  4. Wayne A. Pflughaupt

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  5. Patrick Sun

    Patrick Sun Moderator
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    Doesn't the Neo dts/cirrus processing and the Logic 7 processing do the same sort of processing of 2-channel sources?
     
  6. Yee-Ming

    Yee-Ming Producer

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    or for that matter Circle Surround 5.1?
     

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