DVD-Audio - How to activate Dolby 5.1 and DTS
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Cadillac STS Forum - 2005 through 2012 Discussion, DVD-Audio - How to activate Dolby 5.1 and DTS in Past Cadillac Vehicle Discussion; When I first got my STS in October of 07, I tried out a couple of standard video DVDs to ...
  1. #1
    ajmasala is offline Cadillac Owners Member
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    DVD-Audio - How to activate Dolby 5.1 and DTS

    When I first got my STS in October of 07, I tried out a couple of standard video DVDs to see if the player is Dolby 5.1 capable. I found that with normal video DVD the player recognizes the Dolby 5.1 encoding fine and plays it as it was intended. However, I had no luck with playing my DVD-Audio DVDs in surround mode. I tried my REM "Out of Time" DVD-A, could only get it to play 2 channel (and simulated "Center Point" Surround). I mostly listen to XM or my ipod so forgot about the whole DVD-A issue.

    Till yesterday.....

    I did some research and found this old post -

    http://www.cadillacforums.com/forums...problem-2.html

    Turns out some DVD-A's don't encode the surround tracks by default in Group 1. The trick is to use "Search" and switch to a different group. In the case of the REM DVD, the surround track was in Group 3. Once that is activated it shows the Dolby icon on the screen and plays in glorious multi-channel sound. The sound quality is very impressive.

    I do have another DVD-A of Vivaldi's Four Seasons which has both Dolby 5.1 and DTS encoded on it. However, I cannot get the STS to run either of these surround tracks - there are no other Groups on this DVD besides Group 1.
    When I go to the main menu on the DVD I get a message saying something like "Play this DVD-A as a DVD Video to enable surround sound". I could do this on my DVD player at home (and activate DD and DTS), but I can't find any options on the STS DVD player to achieve this. Anybody know a way to trick the DVD player to play a DVD-A as if it were a DVD Video ?

    So in summary - not all DVD-Audios are created equal. If your DVD-Audio is playing in 2 channel mode (it shows "LPCM" on the screen) try the "Search" and change to a different Group - most likely Group 2. That will, in many cases, activate DD or DTS.

    Thanks..

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  3. #2
    Bee iLL's Avatar
    Bee iLL is offline Cadillac Owners Fanatic
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    Re: DVD-Audio - How to activate Dolby 5.1 and DTS

    On my Metallica music video dvd, I have to hit the soft button "audio" that appears on screen to switch between 2-channel and 5.1. Don't know if you tried that or not.

  4. #3
    Benjamin Simon's Avatar
    Benjamin Simon is offline Cadillac Owners Enthusiast
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    Re: DVD-Audio - How to activate Dolby 5.1 and DTS

    When you search for a group do you type 02 or 2 for group 2? I could not get mine to find the 5.1.

  5. #4
    ajmasala is offline Cadillac Owners Member
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    Thread Starter

    Re: DVD-Audio - How to activate Dolby 5.1 and DTS

    It seems like not all DVD-A have more than one group. My REM DVD does have three groups and the third happens to have the DD track. I can type in 3 in the "Search" to change to that group.
    The other DVD-A i have does not have any other groups besides 1. I get nothing more when I type in "2" in the "Search".
    Benjamin, I suspect in your case your DVD-A does not have more than one group.
    I also learned, from my research on the web, that all DVD-As have a traditional DVD-Video layer on them. I can get my home DVD player (which is also DVD-A capable) to switch to playing it as a DVD Video. However I cant find any options on the STS to do this. Once it recognizes a DVD as DVD-Audio, you are stuck using it as such - the only option being the ability to switch to other groups, should they exist.

  6. #5
    Benjamin Simon's Avatar
    Benjamin Simon is offline Cadillac Owners Enthusiast
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    Re: DVD-Audio - How to activate Dolby 5.1 and DTS

    My DVD is two sided. I merely flip the disk. I will try the DVD Video side.

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