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What is the difference.

Discussion in 'AV Receivers & Amplifiers' started by Faust, Oct 17, 2004.

  1. Faust

    Faust
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    This may sound like a very stupid question, however, here goes. Can anyone explain the difference or the principles of Dolby Pro Logic 2 as opposed to Dolby Digital.
     
  2. vonhosen

    vonhosen
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    Dolby Digital comes in many formats (2.0 & 5.1 etc) In the main you get a faithful reproduction of what the person who mixed it wants you to hear. If it was mixed as 2.0 you get 2.0 , if it was 5.1 you get 5.1.
    i.e. You are getting signal without extra processing


    Pro Logic II invloves extra processing

    Pro Logic II takes a stereo signal & then applies processing to try & make 5.1 out of it.

    Pro Logic IIx takes a stereo signal & then applies processing to try & make 7.1 out of it.
     
  3. Faust

    Faust
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    Would you say then that as a rule of thumb it is better if I turn off the Pro Logic application i.e. dispense with the suedo sound and just listen to the programme as it was intended to be listened to?
     
  4. vonhosen

    vonhosen
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    You should be able to setup each individual input on your amp to apply processing (or not) to match your wishes.

    Personally I have stereo (TV) broadcasts use the Pro Logic processing

    DVD movies to playback the DTS or DD as is on the disc

    & CD's playback in direct (no processing) stereo mode.
     

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