iTunes & Surround Audio

Discussion in 'Apple TV and Home Theater' started by ghaghamashibaba, Oct 19, 2011.

  1. ghaghamashibaba macrumors newbie

    Joined:
    Nov 13, 2010
    #1
    I created a mkv file from a bluray i would like to put in iTunes to view on my iPad and iPhone. Because there is the option to create a 5.1 surround audio track and a Stereo track. I let iVI create both. Because my surround sound is connected to my iMac (Thunderbolt ==> HDMI from AV Receiver). But when the encode is done (I used the Apple TV 2 pre-settings) the stereo audio is playing fine, when I switch it to Surround Audio the movie stops playing and won't continue unless I switch it back to Stereo audio.
    I tried playing the movie on surround sound with VLC and it worked fine. Is this a bug or can am I doing something wrong?
     
  2. spacepower7 macrumors 68000

    Joined:
    May 6, 2004
    #2
    Maybe try the sound preferend pane to select digital out for iTunes? Or is there an option in iTunes or QuickTime to select a different soundtrack?

    IVI and most other apps put the stereo AAC track as the #1 or default track in order to be compatible with iOS devices.

    Rereading your post, what format is your surround track? AAC or ac-3?
     
  3. ghaghamashibaba thread starter macrumors newbie

    Joined:
    Nov 13, 2010
    #3
    the first track is the AAC track (stereo)
    The second one is a 5.1 AC3

    My setup in the sound pref is ok because VLC is playing fine
    When I play the movie in QuickTime x or 7 pro I hear a humming sound,
    Again the stereo track is playing fine
     
  4. spacepower7 macrumors 68000

    Joined:
    May 6, 2004
    #4
    IIRC VLC ignores/bypasses the sound preference pane, so you need to set that up for QuickTime/iTunes. It's an integrated/open source thing? Similar to VLC being able to raise volume much higher than the Mac OS.
     
  5. ghaghamashibaba thread starter macrumors newbie

    Joined:
    Nov 13, 2010
    #5
    Any idea how to do that? I only can change the 48.000 bitrate or from decoded channel to 6 channel audio
     

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