Engaging the THX Cinema setting on my Denon 5700

Discussion in 'Archived Threads 2001-2004' started by Sam R. Aucoin, Oct 10, 2001.

  1. Sam R. Aucoin

    Sam R. Aucoin Stunt Coordinator

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    I noticed that when I engage the THX Cinema setting on my Denon AVR5700 receiver, the sound on the DVDs is simply not as bright or crisp (I hate to use words like these in describing the sound of a movie, but I did not know what else to use) as when I simply engage DD5.1 or DTS.
    I know that THX is supposed to "alter" the sound to a degree, but to my ears, the alteration is quite a bit, and one that I don't particular care for.
    FYI: I am using an M&K 750THX speaker system connected to the Denon 5700.
    Am I missing something here?
     
  2. PatrickM

    PatrickM Screenwriter

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    Sam, nope you aren't missing anything. I own a 5800 and I personally prefer the THX post processing. It does do a form of cinema eq so that would round out the highs a bit and it also does adaptive decorrelation of the surrounds as well as some timbre matching.
    Taken all together it does change the way a normal DD or DTS soundtrack sounds. But, its all up to personal preference.
    Patrick
    ------------------
    My DVD Collection
    Patrick The 69th most popular name for boys according to the Social Security Administration.
     
  3. Lewis Besze

    Lewis Besze Producer

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    Yep,Sam you 've noticed it didn't you?
    The bad side effects of the infamous THX post processing [​IMG]
    ------------------
    "You Hungarians always disagree"
     
  4. Brett DiMichele

    Brett DiMichele Producer

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    The whole guise behind Home THX Certification is that the
    receiver has been sent to Lucas Films for evaluation where
    the power supply is tested to have a clean sine wave output
    and Decoralation and Re-Eq are added to the mix.
    Lucas states that movies mixed for large theaters would be
    far too bright when played in the typical home theater type
    of environment and therfore the Home THX certifications be
    it Ultra or Select do shape the tonal output to be more of
    a flat response rather than an overly bright response.
    I don't own a Dennon receiver so I don't know the specs but
    my THX-Select Onkyo D787 has a Re-Eq setting that is part of
    the THX package. Your receivers should have this feature and
    by turning Re-Eq off the sound should have the same level of
    brightness as it would in other sound formats.
     
  5. Dmitry

    Dmitry Supporting Actor

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    I only use THX on mine when it sounds too bright otherwise. It's been a while since I've used it, most recent DVDs don't seem to be as bright. Does anybody know if the re-eq has become a part of soundtrack remastering for DVD release?
     
  6. PatrickM

    PatrickM Screenwriter

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    Unfortunately, at least in the 5800, once you engage THX Cinema there is no ability to turn off the re-eq since their assuming you want it if you turned on THX Cinema.
    In DD and DTS mode you can independently turn Re-eq off and on.
    On most movies I turn THX Cinema on and for music DVD's I go to whatever format it is and turn off the re-eq.
     
  7. Brett DiMichele

    Brett DiMichele Producer

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    Patrick,
    THX-Cinema? That should only be on non DD/DTS DVD's any DVD
    that contains a DD or DTS sound track should default the
    receiver to THX-EX or don't the Dennons have THX-EX?
    Just curious... I know my Onk only does Cinema when it does
    not sense a DD DTS Sound Track.. Just like the "Surround"
    mode defaults of DPL on non DD/DTS DVD's and auto switches
    to DD or DTS when it senses the appropriate DVD.
    Thats a bummer about the Re-Eq feature on the Dennon.
    ------------------
     
  8. PatrickM

    PatrickM Screenwriter

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    Brett,
    The THX Cinema setting on the 5800 allows you to use THX5.1 or 4.0 post processing on any DD or DTS or even DPL soundtrack. It is different than THX-EX which is sound format rather than processing of an sound format.
    According to Denon's white paper blurb:
     
  9. Sam R. Aucoin

    Sam R. Aucoin Stunt Coordinator

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    After a month of playing around, back and forth, I have reached a definite conclusion: to engage or not to engage TXH depends [​IMG]
    Some soundtracks have a high level "hiss" in the background, and the THX processing definitely cuts down on this.
    On the other hand, some soundtracks have action scenes that have booming highs that I simply like to hear without any reduction.
    As with almost all things said on the HTF regarding wires, speakers, receivers, etc. - use whatever YOU think sounds the best.
    P.S. BTW - One thing that I did several years ago (in fact, immediately after joining the HTF) was to calibrate my TV (a Sony 36"WEGA) so that my brightness level was reduced quite a bit. At first, I thought, "what are these guys talking about - I can't see a thing!". But I persevered and now, I cannot stand to watch another uncalibrated TV - FAR too bright, and the detail in the blacks are gone.
    So I suppose with SOME things in our wacky world of home theater, there is a "correct" way of doing things [​IMG]
     
  10. James D S

    James D S Screenwriter

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    quote: After a month of playing around, back and forth, I have reached a definite conclusion: to engage or not to engage TXH depends.[/quote]
    Exactly.
    I've gotten to the point of when I listen to a bright soundtrack at a friend's house, I can't stand it. It becomes distracting. However, some movies do sound fine without THX postprocessing.
    But, NONE of my laserdiscs do. And all DPL tracks? Fugetaboutit! They REQUIRE THX.
    [Edited last by James D S on November 01, 2001 at 03:48 AM]
     
  11. DanSt

    DanSt Stunt Coordinator

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    I give my thumbs up to THX [​IMG] I can't stand ear piercing highs. I have a 5800 and I use it on all my movies that I watch. I just prefer the sound.
    ------------------
    ...transmission terminated...
    Anubis
    [email protected]
    Equipment List:
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  12. Lewis Besze

    Lewis Besze Producer

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  13. PatrickM

    PatrickM Screenwriter

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  14. Lewis Besze

    Lewis Besze Producer

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