THX Certified Calibration Files

Discussion in 'TiVo Series3 HDTV DVRs' started by T-Shee, Mar 24, 2007.

  1. T-Shee

    T-Shee Member

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    When I first setup my S3, one of the first things I did was to look for the THX calibration files that I assumed would be pre-loaded on the hard drive. I was stunned to find that this $800 THX certified device didn't have any such thing. Nothing.

    Now that TivoCast and Unbox are here and working, it seems like it would be a relatively simple matter to provide calbration files for downloading.

    Having calibration files on the Tivo itself is preferable, and far more accurate, than loading a calibr. DVD on an HDMI equipped player, tweaking, then pulling out the DVD player and swapping the S3 back into the HDMI input (component input ditto).

    How 'bout it Tivo? It's a THX certified box, right?

    ps If you're listening, Tivo, how about 480i, 720p, and 1080i versions. These files could easliy be under five minutes runtime, making them incredibly easy to download and could even be downloaded via the phone-line connection.
     
  2. ashu

    ashu User title defunct

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    +1

    This was something I expected too, failing which I'm of the opinion they should have saved their money (and ours) by not bothering with the certification.

    Love the S3, but do consider this an oversight.
     
  3. cherry ghost

    cherry ghost Well-Known Member

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  4. MichaelK

    MichaelK Active Member

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    anyone got the files from avs to download lately?

    I'm trying now and it just get me errors.
     
  5. MScottC

    MScottC Well-Known Member

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    Right Click on the zip file and then click on "Save Target as..."
     
  6. headroll

    headroll Let em' Roll

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    Anyone have a step-by-step guide of how to calibrate an HDTV based on these files. One i have them displayed, I don't know where to begin.

    -Roll
     
  7. AbMagFab

    AbMagFab What happened, TiVo?

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  8. hornblowercat

    hornblowercat New Member

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    I think it would have been nice to include calibration as well. I never thought about it until I read this thread.

    But for those of you who want to calibrate your television INHD and HDnet both have "tune ups" which has HD Test Patterns that are pretty good. You can record it on your S3 and then when you have time go through the set up.

    I think it's more accurate then putting a DVD in and watching through component and 480p. I also prefer the test on INHD, it's the easiest to use. These test patterns are on 1080i.

    I know some of you know this already, this is for people who don't.
     
  9. T-Shee

    T-Shee Member

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    Sep 22, 2006
    Thanks, but...

    I have no access to INHD or HDNET and I would expect that there are quite a few others who don't have these cable channels either.

    These files could be useful, I'm sure. But they would be subject to compression, transmission errors, etc. I'm looking for the real thing: THX files, blessed by THX and Tivo as the "Gold" standard.

    I really don't think thats too much to ask for, especially from an $800 box that's is supposedly THX certified.
     
  10. hornblowercat

    hornblowercat New Member

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    Hey, I never even thought about it and your right what a cool thing for us to have.
     
  11. hornblowercat

    hornblowercat New Member

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    I would like to know this as well.
     
  12. T-Shee

    T-Shee Member

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    The very first step in any TV calibration procedure is to warm-up the TV for at least 30min., then connect your signal generator (in this case, the S3 with calibration files).

    Until we have calibration source material residing on the S3, outlining a procedure is secondary at best.

    Indeed, TV manufacturersnhave different service menus as well, not to mention the vast differences between technology types (CRT, DLP, LCOS, etc. ) and color standards (NTSC, ATSC, PAL, SECAM) that make any standardized procedure somewhat dubious.

    I could have all the colorimeters, optical comparitors and gray scale charts in the world and none of it would be any use without the proper source material on the S3.
     
  13. ashu

    ashu User title defunct

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    Have to disagree with that, in light of the near absence of CRT style projection units in stores now :) Not necessary for Plasma, DLP, LCD, LCD Projection (SXRD, D-LIA) etc.

    The change in technology and the ability to self calibrate quite perfectly is also why, in my VERY strong opinion, ISF calibrators have now been obsoleted. Unless yu're on avsforum and need to mention in your sig that you're rich (wasteful) enough to have paid for a pro to come calibrate your TV :)

    Sound - yeah - calibrators cans till help with that, but new features in modern home theater receivers that self-calibrate are making that a thing of the past too.
     
  14. T-Shee

    T-Shee Member

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    You have a right to your opinion and I would defend your right to state whatever you wish.

    Personally, I would never start a calbration procedure on any set, regardless of the technolgy behind it, without ample warm-up time. The bulbs, electronics, all components need to come up to operating temperature. There is no such thing as instant warm up. Your cold-calbrated set will look great untill it's warm, when it won't be calibrated any more. But, you go right ahead and do what you want. It's your TV.

    Please provide me with a verifiable reference to a self calibrating TV/Monitor. I had no idea that they existed! I'll buy one today! I'm sure the ISF guys are getting a kick out of that one.
     
  15. ashu

    ashu User title defunct

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    Audio self calibration. Not video. I never said that :p

    The ISF guys have enough problems with dwindling business :)
     
  16. Sevenfeet

    Sevenfeet Gentle Giant

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    The problem with the INHD Tune Up program is that they represent the SMTPE test pattern in a series of concentric circles. This is a lousy way to do this and easily wasted my time trying to figure out how to properly calibrate using this method versus some of the other well known test patterns. You can get it right, but it's a royal PITA.
     
  17. David Platt

    David Platt Mouse Master TCF Club

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    It sure sounds like you said it to me:

    You also mention self-calibrating audio later in the same post, but you sure seem to be talking about self-calibrating TVs here. ;)
     
  18. aaronwt

    aaronwt UHD Addict

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    The money for a professonal calibration of the Tv is definitely well worth it. I was skeptical, when I got my first HD set in 2001, about getting the calibration. But since 2001 I try to get my HD set calibrated once a year. Post calibration the picture is stunning. And i dout that any self tweaking can achieve the same level of performance. self calibration can provide a good picture but a professional calibration can bring the picture to the next level.
    I've had eliab from Avical.com perform my calibrations and the money has been worth every penny to get the performance rom my HD set that has been achieved.
     
  19. ashu

    ashu User title defunct

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    Touche' - you caught me thinking about my next paragraph (audio) before finishing my first (video). Correction accepted - only audio :)

    I think I'm too smart for my own good, sometimes - in more ways than one :eek:

    aaron - I've heard eliab's name numerous times over on avsforum too. Either he has you folks ALL hypnotized, or he's really good. I know that if I hear from a someone that CAN afford a calibration in the North East, his is the name/contact info I'll give them ... after first trying to talk them into buying/renting Avi and other discs :)
     
  20. David Platt

    David Platt Mouse Master TCF Club

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    What you can accomplish with Avia discs is nowhere near what an ISF-certified calibrator can accomplish by going into the service menus and tweaking them. I've been using Avia discs for years, and I still sprang for the professional calibration. There is definitely a significant difference post-calibration. It was well worth the money to me.
     

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