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Author Topic: Is THX still relevant?
Greg Anderson
Jedi Master Film Handler

Posts: 766
From: Ogden Valley, Utah
Registered: Nov 1999


 - posted 10-28-2010 04:07 PM      Profile for Greg Anderson   Author's Homepage   Email Greg Anderson   Send New Private Message       Edit/Delete Post 
It is significant that when THX started all theaters we analog. When DTS entered the fray in a big way with Jurassic Park a lot of patrons and even theatre operators thought that "digital" and THX were competing formats. "We don't need THX anymore because we have DTS." How many patrons thought that THX was some kind of extra booster that could be turned on or off at the projectionist's whim?

So THX suffered from a poorly-informed public AND poorly-informed owners. But, yes, it DID seem like digital sound systems didn't need as much maintenance as analog systems. And paying for that recertification didn't seem to be worth the price anymore if audiences thought DTS was better.

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David Stambaugh
Film God

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 - posted 10-28-2010 04:34 PM      Profile for David Stambaugh   Author's Homepage   Email David Stambaugh   Send New Private Message       Edit/Delete Post 
Speaking only of movie theaters, if THX certifications were still objective, impartial, based on high standards, and performed on a regular schedule, then yes it would still be relevant.

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Louis Bornwasser
Film God

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 - posted 10-28-2010 07:17 PM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
THX had two problems:

1. As Scott said, they sold out. The first THX contracts were limited to cinema only, not to be used in any other venue or platform. When THX did tyhis, one large chain attempted to renegotiate the contract (money-wise) and failed. Said circuit used this as an excuse to cancel circuit wide. The architects had learned how to properly design a building by then and it did not matter much. Also, our identical non-THX screens had identical equipment except for the crossover, which had become somewhat dated.

2. Other circuits began to self certify. The equipment was not on the approved list, which itself was quite lame. I can name a chain theatre where audio from FIVE screens can clearly be heard in the THX room.

It just didn't mean anything anymore. Tom Holman had left anyway. Louis

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Bobby Henderson
"Ask me about Trajan."

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 - posted 10-28-2010 08:26 PM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
In the early 1990s THX made a decent effort of trying to educate customers about why THX and digital sound were important. They had a good tri-fold flyer, buttons saying things like "THX and Dolby Digital, the perfect combination," etc. I liked the analogy they made about a digital audio track being like a CD and THX being a really great sound system on which to play the CD.

I agree THX "sold out," but I think what they did in consumer circles happened after the theatrical effort was seriously wounded.

I don't think 5.1 digital sound did anything to hurt THX. Between 1993 and 1995 I think the digital formats did a lot to encourage THX installs. The real thing that screwed THX up good was stadium seating.

I think it is more difficult to build a modern stadium seated auditorium and have it fully comply with the THX spec when it was really demanding. The rooms are quite a bit bigger in terms of cubic air space. That means greater demands for air conditioning (and a harder time trying to eliminate AC noise). The rooms are more prone to echo. The problem is worsened when those common width wall to wall screens are used. I suspect it would be more difficult and costly to get all the right equipment and appropriate acoustical treatments installed. Lots of theater circuits balked at it.

I think THX watered down their specifications to make it easier to plaster the THX logo on stadium seated theaters. Even then the vast majority of new stadium seated builds weren't featuring THX even when they could do it under an easier set of standards. And then the theaters that did bother to do THX and stadium seating (and digital sound) weren't doing it very well. Audiences just shrugged instead of being blown away like they would have been if they had visited a THX theater that did THX right (such as the old Northpark #1 in Dallas).

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Aaron Garman
Phenomenal Film Handler

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From: Toledo, OH USA
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 - posted 10-28-2010 10:57 PM      Profile for Aaron Garman   Email Aaron Garman   Send New Private Message       Edit/Delete Post 
To answer the topic's question: yes, it is still relevant. Do average consumers notice or even care? Most likely not.

THX certainly did suffer from getting lost in the alphabet soup, and I'd love to see it perhaps bring order to that mess. If they rethought the spec, and made it stricter, it could help the consumer. Instead of going to a 4K DLP with 3D, stadium seating, and mega super duper ultra fantastic sound, just sum it up with one name: THX. There is definitely a great branding opportunity there.

As for consumer gear, I was very excited to see THX certified displays because it was starting to get extremely confusing when looking at different display devices. Now when I see a THX display, I know that it can perform certain tasks up to a certain standard.

And I concur, THX certified VHS tapes was not a step in the right direction.

AJG

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Marco Giustini
Film God

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From: Reading, UK
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 - posted 10-29-2010 05:13 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
I could name another (former I guess) all-THX 5-screen cinema where the sound of all 5 screens could be heard in all other screens.

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Joe Redifer
You need a beating today

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 - posted 10-29-2010 09:38 AM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
That's not at all surprising as they do not measure for ambient noise with the other auditoriums on and running.

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Steve Guttag
We forgot the crackers Gromit!!!

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From: Annapolis, MD
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 - posted 10-30-2010 12:47 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
I think Manny summed it up the best.

THX was always supposed to be a "seal of approval" to a theatre and patron. By attaining THX certification, the theatre was supposed to meet specifications normally reserved for dubbing stages and thus a theatre would have a similar experience, sound wise, to what the person heard when they mixed the movie.

They absolutely suffered a branding issue when the patron thought of THX as a "sound system" or a "format" rather than a quality. They also did EVERYONE a disservice when they allowed in-house techs to recertify their own theatre. Regardless of the integrity of the tech, their livelihood could be put in jeopardy by failing their boss' theatre! And with that, allowing theatres, that happen to be part of a lucrative or high-profile deal pass when they shouldn't. They damaged their reputation.

We still re-certify theatres for THX. And most know, I have no problem failing one that does not meet spec. I have not had a problem getting folks to fix their HVAC or whatnot in order to pass. In a sense, this is THX at its finest...the annual recertification process allows one to track a theatre that is aging and address problems that will not be noticed on a day-to-day situation. One such screening room we handle I noted that each year, a little more boost was needed to meet spec (our mics are recalibrated annually to avoid our test equipment from entering into that equation). After 10 or so years, really, the diaphragms needed to be changed because they didn't have the response they once did. That sort of thing gets missed in most theatres since one has no point of reference. The change is so small on any time period, one wouldn't even pick off that the performance had lessened. Likewise with the HVAC stuff where the noise increase is gradual as the equipment ages.

THX also is more than a collection of equipment. It is not enough to merely put in THX-approved equipment to get the full benefit of the design. How the equipment interacts with its surroundings also plays into it.

I'm not sure I've ever seen a conventional theatre, without THX actually go through will all of the design required for THX certification, including spacing of the stage speakers off of any boundry surfaces, the baffle wall construction...etc.

Joe does bring up a good point about the noise from the booth. I know that when I went for training, they made a point of stressing to use double ports to minimize it and to seal them tight to the wall as well as other openings (electrical boxes...etc) to keep booth noise down. At the AFI/Silver, a THX Certified facility, to this day, the booth walls are VERY impressive...despite having theatres back-to-back...you can't hear the booth or the other theatre. I think there should be a test, like the HVAC test to verify that the booth also does not bring the theatre above NC-30. The projector should be threaded with a loop that has several splices in it too! For DCinema, the projector, with all of its fans, should be on too.

On the consumer side...well, that is a source of revenue, for sure...and again, THX is a certification that one either believes in or they don't.

Steve

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Scott Jentsch
Phenomenal Film Handler

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From: New Berlin, WI, USA
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 - posted 11-01-2010 12:50 PM      Profile for Scott Jentsch   Author's Homepage   Email Scott Jentsch   Send New Private Message       Edit/Delete Post 
Some of this sounds like a company I used to work for. We needed to attain ISO9000 certification in order to get a particular contract. The officers of the company got on board with the idea of becoming ISO9000 certified, until they found out how hard it was going to be. Then they decided to become ISO9000 "compliant" which is a euphamism for not doing everything the certification required, just most of it (or at least the parts that they wanted to do). It become such a protracted issue, I don't even remember if they got the contract that originally required them to get the certification.

Can ISO9000 be blamed for the company watering down the spec? No. From what people say here, THX did just that, and for that, they should be blamed for the mess they created. But the theaters certainly sound like they had a hand in it, as they were trying to skirt the requirements because they were too onerous. It's too bad that THX didn't stick to its guns and say that the spec was the spec, but most companies follow the money...

It's odd that a THX screen would have sound leakage issues from adjacent auditoriums, as I'm certain that such isolation was part of the spec (as was isolation from the projector). In the half-dozen THX auditoriums that I've been in, I've never experienced those issues, but I believe those here that say that it exists/existed.

As far as relevance of THX certification and of the THX brand, I think both are still relevant.

No one here has said that if the THX spec were followed completely, you would end up with a poorly performing theater. Therefore, a THX certification should be a stamp of approval that the consumer can count on. There is a salient point that a theater could build an auditorium that would meet or exceed the performance of a THX-certified auditorium, but no one paid the money for the THX plaque for the wall. That's all well, fine, and good, and it's possible that the public might notice without any prompting or marketing by the theater.

That's where the marketing strength of the THX brand comes in. I have absolutely no data to support this, but I would wager that the THX brand still has meaning with the moviegoing public. If you had a movie playing in two auditoriums, and one was branded THX, I'll bet that the THX auditorium will sell better. That's just simple marketing. Now, you might be able to switch out THX and put in ETX or XD as the brand, and maybe get the same results, but the end result is that by marketing something as special, it draws attention that it wouldn't normally get. It's a competitive advantage.

If you had two auditoriums, and one was THX and the other was ETX, the natural thing for the customer to ask is "what's the difference?" If the answer was that the THX auditorium was built to a set of rigid performance specifications, using equipment that has been approved for its performance, and it was checked by a third-party every six months, vs. the ETX auditorium which was built with the same intentions, but it wasn't certified or checked by a third-party, my guess is that a majority of people would steer towards THX. Especially if the THX presentation is regular price, and the ETX presentation is 30-45% more.

I'm less confident than the THX vs. nothing argument, but the effect of the marketing and the impact that using the THX brand could have still resonates with the public. That THX trailer is part of the show, and when you put that before a movie, people are going to sit up and take notice. That makes a theater playing Harry Potter in a THX house more attractive than the theater down the road not having anything additional to advertise about.

Even ignoring THX as the linchpin, if theater chains were to set up a certification program that would provide the public with some additional confidence in the performance of the presentation they experience, it would have an impact.

For example, if Marcus Theatres were to come up with a new program, let's call it "Gold Standard" This new program would outline to the public that there are a certain set of performance guidelines that they were checking their own theaters against, such as sound performance, image brightness, focus, steadiness, noise levels, etc. and each auditorium would be checked on a regular basis for these factors, that would instill confidence on the part of the consumer. Even bathrooms at WalMart have a sign on the back of the door that says when it was last cleaned and the name of the manager to contact if you find something that needs attention. Why can't a theater have the same thing? At the door, a small sign that reads "This auditorium checked by S. Johnson on 10/31/2010. Gold Standard Certification -- PASSED" would all that is needed.

In the consumer's mind, the THX certification already does that, and it's a universal standard that is easy for people to understand and lots of marketing has already been put into it (not so much anymore, but that's another issue).

The THX spec matters. Digital Sound matters. Film/Digital Cinema done right matters.

Consumers have to be educated so that they know what it is that they're experiencing, so that they can appreciate the difference. These things are completely up to the theaters, and unfortunately, many fail at the job. Small wonder that the audience is either confused or apathetic about the differences!

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Tom Petrov
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 - posted 11-01-2010 02:14 PM      Profile for Tom Petrov     Send New Private Message       Edit/Delete Post 
I was in a former THX auditorium yesterday and you couldnt really tell that the theatre was a cut above the rest of the theatres in the complex.

It was so upsetting to see that the seats were not pointed directly to the centre of the screen. The seats at the edge of the rows was pointed to the edge of the wall. How can people watch a movie like that?

quote: Aaron Garman
As for consumer gear, I was very excited to see THX certified displays because it was starting to get extremely confusing when looking at different display devices. Now when I see a THX display, I know that it can perform certain tasks up to a certain standard.

And I concur, THX certified VHS tapes was not a step in the right direction.

I have a whole bunch of consumer gear. Usually the THX stuff is built better. Also, I have noticed my THX receiver is silent when running while my non-THX receiver has slight hum to it.

As for the tapes, I have noticed that THX Laserdiscs, tapes,dvds are usually a step above the nonTHX media, especially for the picture quality.

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Manny Knowles
"What are these things and WHY are they BLUE???"

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 - posted 11-01-2010 02:30 PM      Profile for Manny Knowles   Email Manny Knowles   Send New Private Message       Edit/Delete Post 
Just about every THX cinema I've been in suffered from low-end bleed from adjacent theatres. (Free-standing, single-screen theatres excluded.)

This may have been less of an issue with analog but with the digital LFE channel (with in-band +10dB gain and higher overall SPL in all channels) the problem becomes that much more pronounced.

I could allow that it may have been an unforeseeable issue, if the theatre was constructed during the analog era.

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Joe Redifer
You need a beating today

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 - posted 11-01-2010 05:20 PM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
quote: Scott Jentsch
It's too bad that THX didn't stick to its guns and say that the spec was the spec
The other problem with this is that THX specs were NEVER good enough to begin with. Like I said before, they only measure for ambient noise coming from the HVAC. They do not measure for projectors running in the booth or noise coming from adjacent auditoriums.

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Tom Petrov
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 - posted 11-01-2010 05:44 PM      Profile for Tom Petrov     Send New Private Message       Edit/Delete Post 
quote: Manny Knowles
Just about every THX cinema I've been in suffered from low-end bleed from adjacent theatres. (Free-standing, single-screen theatres excluded.)
I remember when I saw "War of the Worlds" at the Queensway theatre 18. They were doing some construction outside and I could hear in during the quiet moments of the film.

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Louis Bornwasser
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 - posted 11-01-2010 09:47 PM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
I can tell you that National Amusements THX was rigorous and noise was measured during normal operating hours with all adjacent theatres running and with film running in the projector. Rigorous enforcement.

There were two problems:

1. Other competitive cinemas were passed even when not good.

2. Other auditoriums in the same NA plex were as good or better than the THX installations. (identical equipment and rooms)

Rationally, why pay for something that was devalued by its owner (THX)?

Secondly, the public came to identify THX with echo sound and noise because of the other theatres. It became a liability, not an asset, so it was cancelled. Louis

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Bobby Henderson
"Ask me about Trajan."

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 - posted 11-01-2010 10:24 PM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
quote: Joe Redifer
The other problem with this is that THX specs were NEVER good enough to begin with.
There's a couple key factors to consider in this. The original THX spec was drawn up in, what, 1982 or very early 1983? Back in that day what sort of theaters were targeted for THX certification? I don't think the neighborhood multiplex was seriously considered. The big "flagship" class standalone theater design in big cities was the preferred target.

Technically the GCC Northpark 1-2 theater in Dallas (one of the first THX sites) was a multiplex. However, the #1 THX house was on the south side of the building while the #2 non-THX house was on the north side. There were no issues of sound leakage between the two auditoriums. Audiences in house #1 would have had a much better chance of hearing a CO2 tank explode in the snack counter than hear any sound at all coming from house #2.

Then we have to consider the nature of film soundtracks back in the early 1980s. They weren't quite as dynamic as soundtracks became at the end of the 1980s on into the 1990s. Dolby mag SR on 70mm and 35mm digital both had lower noise floors and more headroom than Dolby A magnetic on Format 42.

Theater builders underestimated the amount of sound-proofing required to contain sub-bass between multiplex auditoriums. I don't think they've really done it right with modern stadium seated theater designs with high ceilings and common width screens (lots of echo and frequency band robbed audio). It's pretty funny to consider how you can hear the rapid rat-a-tat-a-tat of the film projector in most auditoriums, THX certified or not. I don't think I ever heard the projector rattling in Northpark #1, but that was a huge 1000+ seat auditorium too. When you grabbed a chair in that auditorium's sweet spot you were pretty far forward from that projector port.

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