LOgitech Z-5500 on optical only showing stereo

Discussion in 'Mac Pro' started by digginestdogg, Nov 28, 2009.

  1. digginestdogg macrumors newbie

    Feb 25, 2007
    I thought the First Gen Mac Pro 8-core optical out offered 5.1 digital sound out. But when I attach it to my Mac Pro via the optical connector, I only get Stereo not 5.1. I selected digital out in the system sound control panel. Anyone have any idea why I am only getting a stereo signal?
  2. MrCheeto macrumors 68030


    Nov 2, 2008
    Go to your spotlight and type MIDI, go to the Audio MIDI Setup and configure your heart out ;)

    It only supports 5.1 out if your SOUND SOURCE (say a DVD with 5.1 Dolby) puts out 5.1 channels.
  3. nightfly13 macrumors 6502a


    Jul 17, 2008
    Ranchi, India
    The above response is good. Just to elaborate, some apps, like VLC, when playing back something with 5.1 will have options for 'Digital Output' and 'Digital Output (encoded)'. Obviously it's the latter that you want.
  4. Shazaam! macrumors member


    Apr 12, 2009
    Cycle through the effects (Stereo, 6CH, StereoX2, DDPLII, etc) by pushing repeatedly the Logitech's controller's Effects button.

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