Need a favor from anyone running an EX config

Discussion in 'Archived Threads 2001-2004' started by Jeremy Anderson, Jan 24, 2003.

  1. Jeremy Anderson

    Jeremy Anderson Screenwriter

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    Hey guys- in doing some testing with my Onkyo, I came across an anomoly in EX decoding and wondered if I could find a couple other folks who could try an experiment on their system.

    Using a phase test for surround speakers (such a test signal is available on Avia, VE and even on any disc which has THX optimode). Play the phase test for surround speakers with EX processing on (make sure the processing is on!). When it goes "in phase" the sound should come out of the rear center-- but when it goes out of phase- what happens? Do you get sound from each of the rear side speakers, or do you get silence?

    If you could post your results and the model receiver or processor you use- that would be very helpful.
     
  2. David Judah

    David Judah Screenwriter

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    Yes, out of phase--sound comes out of the regular surrounds & in phase--out of the center surrounds.

    Pioneer 45TX.

    DJ
     
  3. Jeremy Anderson

    Jeremy Anderson Screenwriter

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    Thanks David. Need results from other people, so keep them coming!
     
  4. Michael Langdon

    Michael Langdon Stunt Coordinator

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    Using the phase tests for the surround speakers on THX optimode, I get the following results with EX decoding set to 'ON' for my processor (Aragon Stage One):

    IN PHASE: sound comes out of rear center or surround back speaker(s)

    OUT OF PHASE: sound comes out of both surround left and right speakers

    Mike
     
  5. Jeremy Anderson

    Jeremy Anderson Screenwriter

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    Okay, anyone out there have an Onkyo they can try?
     
  6. StephenL

    StephenL Second Unit

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    Onkyo TX-DS898
    THX Surround EX: On
    Avia surround speaker phase test
    In phase: back surround speakers
    Out of phase: side surround speakers
     
  7. Jeremy Anderson

    Jeremy Anderson Screenwriter

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    Interesting... So Onkyo's line from last year decodes correctly. Anyone have one of the newer models to test? Particularly the SR600, 700, 800, or 900?
     

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