1. Join Now

    AVForums.com uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Dolby ProLogic II from a mono sound source?

Discussion in 'Televisions' started by bedders, May 2, 2003.

  1. bedders

    bedders
    Standard Member

    Joined:
    Apr 29, 2003
    Messages:
    219
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    21
    Location:
    UK
    Ratings:
    +2
    Sony 14" mono TV - use small phone headphone to L and R Audio input into a Sony DAV-S550 audio in.

    How will Dolby ProLogic II react/sound on a full 5.1 set of speakers?

    Will it work, but only put the same mono out both L and R speakers, or will there be no rear sound, just front?

    Many thanks for your advice :)
     
  2. Jase

    Jase
    Well-known Member

    Joined:
    Mar 16, 2001
    Messages:
    9,407
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Location:
    South Coast
    Ratings:
    +856
    More than likely you will only get sound from the centre speaker. You need a Stereo or Dolby Surround signal for it to work properly.
     
  3. LV426

    LV426
    Administrator Staff Member

    Joined:
    Jul 14, 2000
    Messages:
    12,789
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Somewhere in South Yorkshire
    Ratings:
    +4,984
    ProLogic (and DTS Neo6) works by using differences between the left and right channel signals to steer sound to the various speakers. Anything that is identical in both channels (typically, dialogue in a stereo signal) is routed to the centre where it belongs.

    Clearly, if the entire sound is identical in both channels (as it would be for a mono signal) then the entire sound is routed to the centre.

    Many amps have other surround 'modes' that process signals, including mono ones, differently.
     
  4. Andywilliams

    Andywilliams
    Active Member

    Joined:
    Sep 27, 2002
    Messages:
    2,078
    Products Owned:
    1
    Products Wanted:
    0
    Trophy Points:
    51
    Location:
    notts.
    Ratings:
    +63
    Hi Nikbedwell
    Have you got a video if you have use the audio out to connect to your dav550 then you will get your tv in prologic{thats if your vcr is a nicam model}.Hope this helps.
    Gonzo.:)
     

Share This Page

Loading...