Volume discrepancy issues?

Discussion in 'Home Theater Projects' started by Steve Griswold, Jun 20, 2006.

  1. Steve Griswold

    Steve Griswold Stunt Coordinator

    Apr 3, 2003
    Likes Received:
    I've encountered a strange and ever more noticeable quirk in my setup recently, I hope someone can help. The answer may be something stupid, I don't know.

    Current setup:
    Onkyo TX-SR600 receiver
    Denon DVD-1600
    Ascend Acoustics CMT-340 + 4x CBM-170
    Dish DVR-921
    Audio Authority 1154A switch

    When I watch non-DD/DTS programming, i.e. SD broadcasts, volume is clear and full on all channels, and well balanced.

    It seems when I switch to a 5.1 signal, there is a huge discrepancy between "inside voices" and "dramatic action."

    Receiver is set at 50 for "normal listening."

    I put on a DD-enabled DVD. Scene has 2 people talking normally, I have to crank the volume to 62 to hear what they're saying. Next scene is full of yelling and explosions, my eardrums start bleeding and I lower the volume down to 46. Explosions finish, people start talking normally again. Again, volume needs to go back up to 62.

    This happens with my DVD player, all HD programming, Xbox360 - basically any digital signal.

    I have no idea where to start checking for problems. Could this be caused by a loose cable somewhere? All sources (Audio and video) lead into the 1154A and then into the receiver. I calibrated all levels with an SPL meter a while back.

    Any help would be appreciated.
  2. chris_everett

    chris_everett Second Unit

    Jul 20, 2003
    Likes Received:
    The material in your standard SD broadcast is very compressed. (Dynamic compression, not data compression) DVD's and the like arent. The real problem that you probably have is a lousy accoustical environment, which can make it very difficult to hear two people talking "normally" Most DVD players have a compression option that may help. (On some DVD players this feature can _suck_) so use with caution.
  3. Brian Osborne

    Brian Osborne Stunt Coordinator

    Sep 2, 2005
    Likes Received:
    what sound processing are you using for your onkyo? Selecting Direct or autoformat may solve your issues. try some different sound processing, see what works

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