Dolby D or DTS???

Discussion in 'Archived Threads 2001-2004' started by MWestyn, Jan 6, 2003.

  1. MWestyn

    MWestyn Stunt Coordinator

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    I was just curious as to the advantages of each...is one better than the other?

    I have a 5.1 setup right now (yes I realize DTS will give me 6.1) but should one sound better than the other in 5.1?

    Thanks.
     
  2. Ammon

    Ammon Stunt Coordinator

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    I personally think DTS sounds better than DD. The channels all seem more independant than DD. Before they started including DD and DTS on a single DVD, DTS titles were individual purchases. The DTS track on these movies was much less compressed as it is now as they are trying to include both audio tracks on one DVD. The DTS only versions did not include any special features, but the sound was incredible. A good comparison would be the Saving Private Ryan DTS version as compared to the DD release. The sound is much more rich and full and the channel separation was very definate in the DTS version. You can also compare the tracks on the LOTR Extended Edition. You can also check out the Superbit version of movies as they have a less compressed audio track than the regular release. However, the Superbit selection is something to be desired of! I'm sure there are those who prefer the DD over DTS, but I am a big fan of DTS and look for it on every DVD I buy.
     
  3. John Garcia

    John Garcia Executive Producer

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    DTS will not give you 6.1 - DTS ES Discrete will give you true 6.1.

    DTS is no more compressed now than it was before. You only have two flavors of DTS compression, to my knowledge - half (754K) and full (1509K) bitrate. The overall sound has more to do with the mastering than the compression. The typical DD track is 348K. That does not mean there are no good DD tracks.

    I'd say 9 times out of 10, DTS tracks sound better to me. If given a choice, I default to DTS.

    For DD, check out: Fight Club:SE, Iron Giant, Abyss:SE, Final Fantasy.

    SPR is a pretty good example of the difference between DTS and DD. The DTS version is noticably better than the DD version (though I heard they were from different masters?)
     
  4. Michael Reuben

    Michael Reuben Studio Mogul

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    The typical DD 5.1 track today is 448Kbps (or kilobits per second). The 384 rate (I assume your "348" was a typo) usually indicates that the title is (a) older, (b) issued by Warner (though even they are starting to use the higher rate), or (c) occurs on a disc with major space constraints (Titanic for example).
    To return to Sean's original question: Literally thousands of messages have been written on HTF (and tens of thousands elsewhere) debating the differences -- technical and acoustical -- between DTS and DD. There's still no consensus. There are those who hear differences in most DTS tracks. And there are others (like me) who hear little or no difference, unless the track was mastered from a different mix.
    M.
     
  5. Ammon

    Ammon Stunt Coordinator

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    Did most of the DVD's that were DTS tracks come from different masters? Or is SVP a single case? How about such titles as 'The Peacemaker' or 'Dante's Peak'?
     
  6. John Garcia

    John Garcia Executive Producer

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  7. nik k

    nik k Agent

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    I tend to favor dts (and really like dts-es) with my movies. I have a question though. Where does THX EX come into play? When i play movies with dts or dd i can have the thx function on (onkyo sr800). Is this just thx certs/specs and not thx-ex as a 6.1? When does thx-ex decoding become separate from dd-ex or dts-es? and i still am confused on what happens to dts-es dd-ex, and thx-ex when you throw the 7.1 into the mix? thanks.
     
  8. MWestyn

    MWestyn Stunt Coordinator

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    Thanks for all the replies.

    The reason I mentioned the 6.1 vs 5.1 is because the last couple dvd's I threw in listed DD5.1 and DTS6.1 as options.

    Do if it DTS ES or EX and I opt for it but only have a 5.1 setup, will I miss anything or just not get the full effect?

    As for the other differences, it seems as though whichever has more kbps would have more information to "hear" but I guess I'll just have to listen for myself and see what I like. My first impression was that DTS sounded a little more crisp but I thought it was my imagination.
     
  9. John Garcia

    John Garcia Executive Producer

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    My understanding: THX EX and DD EX boil down to the same thing (IIRC, Dolby licenses the EX format to THX or something like that), processing wise, except THX has it's own specifications to be met. THX Ultra is for 7.1.

    6.1 and 7.1 are the same thing. There is currently no such thing as true 7.1, it is just 6.1 with two rear center speakers playing the same information for a wider soundstage (good for large rooms).

    No you will not miss anything when playing a 6.1 movie on a 5.1 system, even if your processor does not do 6.1 processing. You do miss out on the extra speaker(s), but the information does not get lost. The rear center information will simply be mixed into the existing surrounds. Having spent plenty of time with my system in both 6.1 and 5.1, I prefer 6.1, but more or less only with 6.1 material.
     
  10. Ammon

    Ammon Stunt Coordinator

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    Correct me if i'm wrong, but THX works together with either DD or DTS. There are basically 2 areas of the sound system. 1 area is the equipment that reads the audio track and processess it, and the other is the equipment that it is sent to. DTS and DD come into play in the first area, as THX is the 2nd area. I believe setting the receiver to THX mode, you are stating that you have a home theater set up to THX standards. If your receiver is only 5.1, it will still simulate the 6.1 or 7.1 sound for the rear speaker with the 2 side channels.
     
  11. John Garcia

    John Garcia Executive Producer

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    No, you are correct that THX is additionally applied processing, and along that line for EX and Ultra, there are specifications for that processing.
     
  12. Michael Reuben

    Michael Reuben Studio Mogul

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  13. Frank Carter

    Frank Carter Screenwriter

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    How do you guys know(or find) the compression rate of a particular movie?
     
  14. MWestyn

    MWestyn Stunt Coordinator

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    I understand...I was just basing my understanding on theories behind compression for pc's (mp3's and such), generally speaking, the more you compress something (and depending on the compression engine you use), the harder it is to decompress without loss of quality. But if it was designed to be compressed to a certain size, it seems that would explain it.
     
  15. Michael Reuben

    Michael Reuben Studio Mogul

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  16. Ammon

    Ammon Stunt Coordinator

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    Were the first DTS DVD's ever been mastered at 1536kbps? I ask this because when the first DTS titles were released they were special DVD's that could only fit the movie and audio track. How many movies have been mastered at 1536 and what were they?
     
  17. Michael Reuben

    Michael Reuben Studio Mogul

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  18. John Garcia

    John Garcia Executive Producer

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  19. Frank Carter

    Frank Carter Screenwriter

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    Sorry, that was what I meant. I'm not too familiar with the process. Thanks for the info., I was wondering why my dvd player had that meter there.
     
  20. BruceLongee

    BruceLongee Agent

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