Dolby Digital - Post Update

Discussion in 'VirginMedia TV with TiVo - UK' started by stevelup, Nov 28, 2011.

  1. stevelup

    stevelup New Member

    64
    0
    Jun 4, 2002
    Hi

    I seem to have lost Dolby Digital after the update. My amplifier is constantly reporting 2 channel PCM regardless of the menu setting, and this is with recorded content that is known to be DD.

    Also, when playing back said content, the TiVo 'noises' are still audible whereas before they were not.

    Tried both HDMI and Optical.

    Is it just me?
     
  2. dannylau

    dannylau New Member

    41
    0
    Jun 20, 2011
    It works for me, try rebooting your box that seems to fix it for most people
     
  3. stevelup

    stevelup New Member

    64
    0
    Jun 4, 2002
    Still nothing... The box is permanently outputting 2 channel PCM.

    I've tried setting and unsetting the menu option, and two reboots.

    Odd..
     
  4. Dec 1, 2011 #4 of 10
    OzSat

    OzSat Very Nice Moderator

    5,053
    1
    Feb 15, 2001
    Oxfordshire, UK
    I beleive there are two thing that need setting for DD.

    You need to change the menu so its not PCM.

    And you need to select the Digital audio channel on the channel itself.
     
  5. Dec 1, 2011 #5 of 10
    stevelup

    stevelup New Member

    64
    0
    Jun 4, 2002
    The channels default to DD where available - you can manually change to MPEG audio and back again.

    The volume level and mixdown changes when you do this, but the actual output format doesn't change from PCM, and is never more than two channels.

    It's just plain weird.
     
  6. Dec 1, 2011 #6 of 10
    waynomo

    waynomo My One Time TCF Club

    15,328
    964
    Nov 9, 2002
    Seven...
    Check that your receiver didn't get changed.

    i.e. mine is on auto so it detects what the signal is. But I have the option to specify, and once or twice someone by accident hit that button and I was like "WTF is going on?"
     
  7. Dec 1, 2011 #7 of 10
    stevelup

    stevelup New Member

    64
    0
    Jun 4, 2002
    Definitely not the receiver. I've had a HDMI analyser connected between the TiVo and my kit and it's permanently reading 2ch PCM 48KHz.

    I'm not really that bothered about it, but it's odd. I don't like odd!
     
  8. Dec 1, 2011 #8 of 10
    OzSat

    OzSat Very Nice Moderator

    5,053
    1
    Feb 15, 2001
    Oxfordshire, UK
    Its worth recording the BBC Hd Preview programme overnight - and see if that works.

    That is a definate 5.1 transmissions.
     
  9. Dec 1, 2011 #9 of 10
    stevelup

    stevelup New Member

    64
    0
    Jun 4, 2002
    I've just rebooted the entire kit and caboodle... And now it's working.

    I've got quite a complicated setup with AV Receiver, HDMI Matrix and two HDMI distribution amplifiers - just powered the whole lot down and back up again.

    Hey ho... I suspect this is one of those issues where kit needs powering in a certain order. If it does it again, I'll be more discriminating to try and narrow it down.
     
  10. stevelup

    stevelup New Member

    64
    0
    Jun 4, 2002
    Gah. I've sussed it.

    If I have -any- of my two channel only devices even plugged in to the HDMI distribution amplifier, the TiVo switches to two channel mode. They don't even need to be turned on, just connected.
     

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