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Author Topic: 6 Track Magnetic vs 6 Track Digital
Michael Coate
Phenomenal Film Handler

Posts: 1904
From: Los Angeles, California
Registered: Feb 2001


 - posted 01-03-2011 12:11 AM      Profile for Michael Coate   Email Michael Coate   Send New Private Message       Edit/Delete Post 
quote: Tom Petrov
I am not 100%, but Warner Bros was the first studio to support all three sound formats.
quote: Bobby Henderson
I think Fox was actually the first to do it with Die Hard With A Vengeance. Warner Bros. had released a few movies with Dolby Digital and DTS in 1994, but shifted to supporting Dolby Digital and SDDS until 1996 when Twister was released. Then they went quad format.
Over the years I've kept a journal and a lot of notes, especially during the 1990s when digital sound was introduced. Digging into that data, I'd like to present the following:

I think Bobby is correct about Fox and Die Hard With A Vengeance being the first film to be released with all three digital audio formats. I'm not so certain that it was released with a single inventory of quad-format prints, though; it may have been multiple inventory. What was the first quad-format, single-inventory release? Perhaps Twister as mentioned. But...there were a handful of other releases with all three digital formats in between the May '95 release of Die Hard and the May '96 release of Twister, including, if my data is correct, Fox's Strange Days and New Line's Mortal Kombat.

Continuing on the subject, I thought it might be interesting to identify the first film each of the major studios offered with a digital soundtrack followed by the first quad release to illustrate how much time elapsed between each. The purpose of this, of course, would be to point out how long each studio stuck to their idiosyncratic ways and/or political preferences in regard to supporting one (or two) formats before conceding that releasing in quad format was practical and beneficial for everyone involved.

The first entry is the studio's first release with any digital sound. The second entry is same studio's first quad release. The data concerns only the United States and Canada. Test releases have not been included, nor have any Cinema Digital Sound releases from 1990-91 been included.

BUENA VISTA
July 1992 (Dolby Digital) - Honey, I Blew Up The Kid
June 1997 - Con Air

COLUMBIA
November 1992 (Dolby Digital) - Bram Stoker's Dracula
July 1997 - Air Force One

DREAMWORKS
September 1997 (Quad format from the get-go) - The Peacemaker

MGM/UA
May 1994 (DTS) - That's Entertainment III
December 1995 - Cutthroat Island

NEW LINE
August 1993 (Dolby Digital) - Jason Goes To Hell: The Final Friday
August 1995 - Mortal Kombat

PARAMOUNT
November 1993 (DTS) - Flesh & Bone
May 1996 - Mission: Impossible

TRI-STAR
October 1993 (SDDS) - Rudy
May 1998 - Godzilla

TWENTIETH CENTURY FOX
December 1992 (Dolby Digital) - Toys
May 1995 - Die Hard With A Vengeance

UNIVERSAL
January 1993 (Dolby Digital) - Matinee
February 1998 - Blues Brothers 2000

WARNER BROS.
June 1992 (Dolby Digital) - Batman Returns
May 1996 - Twister

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Bobby Henderson
"Ask me about Trajan."

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From: Lawton, OK, USA
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 - posted 01-03-2011 09:20 AM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
Die Hard With A Vengeance was a dual inventory release. One set of prints was SRD/DTS; the SDDS prints were separate. I first saw the movie at the AMC Grand 24 in Dallas (in SDDS) then visited Rich Petersen at his Casa Linda 4 theater and watched parts of it again (and all of Crimson Tide) in Dolby Digital. His Die Hard III print was SRD/DTS.

Strange Days may have been single inventory, but a print I personally saw of it here in Lawton did not have SDDS audio on all of its reels. I suspect Fox may have had to send out replacement reels to a number of theaters. It would be interesting to know if they made a separate inventory of SDDS prints.

Edit: I almost forgot I posted frame images years ago about the Strange Days quad format glitch:
 -

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Edward Havens
Jedi Master Film Handler

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From: Los Angeles, CA
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 - posted 01-03-2011 09:36 AM      Profile for Edward Havens   Email Edward Havens   Send New Private Message       Edit/Delete Post 
Gentlemen, read my words again. I never said Lucas had anything to do with DTS. I said Lucas helped DTS to get a foothold in cinemas when he demanded digital sound for any theatre that wanted to play the Star Wars Special Editions in 1997. And it is true. Let's follow the steps...

1) Lucas demands all theatres that want to play the Special Editions get THX certified.
2) There is a mad rush to get theatres THX certified, only for most theatres (especially older theatres with balconies or with balconies that have been converted to additional auditoria) to discover there is nothing they can do to get certified.
3) Lucas demands all theatres that want to play the Special Editions get some kind of digital sound system.
4) Cheap theatre owners, looking to make more money without spending a lot, overwhelmingly choose DTS over DD or SDDS, due to its incredibly low sticker price in comparison to the other two systems.

Lucas doesn't benefit directly from the installation of any one specific digital sound system. He simply says "If you want this, you must have that," leaving it to the individual theatre owners to decide for themselves which that they get.

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Bobby Henderson
"Ask me about Trajan."

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From: Lawton, OK, USA
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 - posted 01-03-2011 10:07 AM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
Edward, the SE versions of Star Wars did not help DTS gain a foothold in commercial movie theaters. DTS already had a GIGANTIC foothold in the market. The SE versions of Star Wars were released four years after DTS was introduced.

DTS was first used commercially in 1993. At its debut it rolled out onto nearly 900 screens. By 1997 DTS was installed in thousands of theaters around the country. At the time DTS was the overwhelming market leader. The format didn't need any helping hand from Star Wars. DTS was already securely established in movie theaters. SDDS was rolling out onto lots of screens and was in 2nd place on screen count in the US at that time, thanks to volume deals made with AMC, United Artists theaters and Cinemark. Dolby brought out the CP500 and slowly began closing the gap. In 1997 the main contest between DTS and Dolby was in home theater with Laserdisc and then with DVD.

Jurassic Park is the movie that gave DTS its foothold in the market. Star Wars: SE did not do that at all; it was a neutral, quad format release that gave no favoritism to any format -other than giving THX theaters priority on bookings.

BTW, I disagree about there being any "mad rush" to get theaters THX certified in 1997. If anything, THX was already suffering a serious decline. Mid 1995 marked the beginning of the stadium seated theater building boom. The overwhelming majority of new theaters built since then have not been THX certified. Star Wars: SE made virtually no difference with that situation. Worse still, many traditional seated theaters were closed in the mid to late 1990s due to competition from the new stadium seated "megaplex" builds. Some great theaters, such as the GCC Northpark 1-2 in Dallas, one of the original 1983 THX debut sites, fell as causalities to the stadium seated theater building boom. IMHO, when theaters like the Northpark 1-2 were closed THX lost most of its relevancy as well.

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Michael Coate
Phenomenal Film Handler

Posts: 1904
From: Los Angeles, California
Registered: Feb 2001


 - posted 01-03-2011 10:55 AM      Profile for Michael Coate   Email Michael Coate   Send New Private Message       Edit/Delete Post 
If my last post didn't bore the shit out of you this one surely will. It's a year-by-year comparison (for the decade of the 1990s) of first-run U.S. theatrical releases in 70mm vs. those released with digital sound. You can figure out for yourselves what the numbers mean.

1990
70mm: 23
Digital: 3

1991
70mm: 11
Digital: 4

1992
70mm: 9
Digital: 10

1993
70mm: 8
Digital: 41

1994
70mm: 3
Digital: 85

1995
70mm: 1
Digital: 119

1996
70mm: 2
Digital: 161

1997
70mm: 1
Digital: 190

1998
70mm: 0
Digital: 211

1999
70mm: 0
Digital: 242

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Gordon McLeod
Film God

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From: Toronto Ontario Canada
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 - posted 01-03-2011 11:29 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
There was no requirement to get THX certified for SE only if you were a THX house it had to be recertified
But he required that almost all theatres have a TAP alignment done as a condition there is a big difference between a TAP alignment and HX certification

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 01-03-2011 12:04 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Alright Michael...lets get to the crux of this DTS thingy.

What are the stats of DTS installations for the '90s. Lets see if there is a "blip" in '97 as predicted by others. You might also want to list the other two digitals as a comparison.

-Steve

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

Posts: 4247
From: Bloomington, IN, USA
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 - posted 01-03-2011 08:16 PM      Profile for Manny Knowles   Email Manny Knowles   Send New Private Message       Edit/Delete Post 
quote: Frank Angel
If they had settled on a discrete, two channel system (with a derived center), then if the mix required a sound to emanate from JUST the left channel or JUST from the right channel it could do that without the compromises a matrix design required.
How would you propose they "derive" this center channel without a matrix?

If you are alluding to a "phantom" center, the problem is that the effect only holds up in the "sweet spot." If you not equidistant between left and right, then the primacy effect (law of the first arriving wavefront) takes over, and you perceive the sound as coming from the speaker nearest to you. This is why there has to be an actual center channel loudspeaker.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
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 - posted 01-03-2011 09:04 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
The truth in the matter is that Dolby DID just have two discrete tracks with a derived Center...no surround. It was the INDUSTRY that forced the surround issue.

Look at the CP100...It started without an optical surround.
The surround channel, when it came on line, was via a Surround Adapter. I believe it was the Cat 82 that was the first SVA decoder in the CP100. The Cat 116 (surround decoder) lived in the SA1-SA3.

CP50s used the Cat 110 to "derive" a Center. It was later when the Cat 116 came along, that the surround channel was added to the SVA "matrix" and it wasn't really a matrix in the sense we have today. There was minimal steering between L/R and Center (more like ducking) and nothing for steering to the surrounds...it was just an off-the-shelf QS-Matrix decoder (from the Quad days of phonograph records) with a modified "B-type" decoder from Dolby to keep the hiss/noise down in the surrounds. The delay was to keep the leakage in the surrounds from being apparent using the "Haas effect."

It really wasn't until the Cat 150 debuted that we have the SVA matrix that most would recognize today. At that point, the sound can be steered to any desired channel. Over the years, the ability to provide a more discrete matrix, though still not a true discrete mix where one can have different, unique signals coming out of the four channels with full fidelity and no leakage.

-Steve

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Frank Angel
Film God

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From: Brooklyn NY USA
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 - posted 01-03-2011 10:06 PM      Profile for Frank Angel   Author's Homepage   Email Frank Angel   Send New Private Message       Edit/Delete Post 
Only problem is, even with the best matrix, and I think the Panastereo comes closest to mimicking discrete channels, if the sound designer actually demands that unique sounds emanate from extreme locations within the soundfield, what happens is the apparent stereo separation collapses and the unique sounds don't stay in the corners of the room.

Dolby themselves admit this and even demonstrated the effect when they unveiled Dolby SRD at a NY SMPTE Meeting when SRD was ready to launch.

The Dolby moderator first played four individual sounds -- piano, violin, male dialog and female dialog. They were played individually in only the left, center, right and surround channels. The matrix did indeed keep them fairly well located in their desired positions as he played each one, one at a time in their respective locations. But then for the second part of the demo, he began with one sound in only the left channel, then added each "voice" until all four were playing simultaneously. The effect was that as each voice was added, it became more and more difficult to localize each sound. When all four were playing, their locations became indistinct, almost like they were now all coming from somewhere near the center of the theatre. The moderator admitted this was a serious limitation of any matrix and the sound designer had to be aware of it and try to avoid such sound configurations, at least not for any extended time.

Next he played the same demo with the same voices (plus adding a fifth -- I think it was a flute) via SRD and of course they stayed rock steady, locked into the four corners of the soundstage. And he rightly lauded the fact that Dolby Digital now allowed the sound designer the freedom to place sounds in any location he pleased without fear of compromising localization.

We were all duely impressed with digital. But of course I had to quip that, except for the split surrounds, the sound designer had that same freedom with 4 channel mag as well -- that even got a smattering of applause. I followed up asking if he thought given what digital now allowed, would they then go back to localized dialog to follow the actors, and he said it all depended on the sound designer; they could if they wanted to. Someone in the audience added, "Depends if there are any left who still know how to do it!"

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

Posts: 4247
From: Bloomington, IN, USA
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 - posted 01-03-2011 10:52 PM      Profile for Manny Knowles   Email Manny Knowles   Send New Private Message       Edit/Delete Post 
quote: Frank Angel
Next he played the same demo with the same voices (plus adding a fifth -- I think it was a flute) via SRD and of course they stayed rock steady, locked into the four corners of the soundstage. And he rightly lauded the fact that Dolby Digital now allowed the sound designer the freedom to place sounds in any location he pleased without fear of compromising localization.
Nice to know that it's possible but, still, the funny thing is that I've never even once seen a movie where that was even remotely necessary.

Studios have, to my ear, expressed a far greater interest in making the most (too much?) out of the extra headroom that digital affords. (Case in point: TASA)

The better point, though, is that what I said (much) earlier in this thread applies here also - Dolby's matrix solution provided a much-improved sonic experience for neighborhood theatres. Without it, most of us would've heard Star Wars -- and so many other great-sounding movies -- in mono.

There was NEVER a chance that every theatre would have 70mm. Never!

By ignoring the **intended** application of the technology, you are not comparing apples to apples.

Part of the problem with panning dialogue is that a movie will live out most of its years on video - i don't know about you but MY left/right speakers are not behind my screen. I don't want voices of on-screen characters emanating from an off-screen point.

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Tom Petrov
Five Guys Lover

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From: El Paso, TX
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 - posted 01-03-2011 11:29 PM      Profile for Tom Petrov     Send New Private Message       Edit/Delete Post 
quote: Gordon McLeod
if you were a THX house it had to be recertified
quote: Edward Havens
1) Lucas demands all theatres that want to play the Special Editions get THX certified.
Not true at all. My theatre was former THX and was not re-certified for Star Wars SE.

It was re certified for the release of Episode I complete with Dolby EX

quote: Bobby Henderson
In 1997 the main contest between DTS and Dolby was in home theater with Laserdisc
It wasn't much of contest. DTS really had no chance as it was generally too expensive for most laserdisc fans.

At the time, laserdiscs such as Daylight, Jurassic Park, The Jackal, Out of Sight, Lost World etc were release in Dolby Digital even if it was a DTS only in theatres.

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Bobby Henderson
"Ask me about Trajan."

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From: Lawton, OK, USA
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 - posted 01-03-2011 11:36 PM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
quote: Manny Knowles
Part of the problem with panning dialogue is that a movie will live out most of its years on video - i don't know about you but MY left/right speakers are not behind my screen. I don't want voices of on-screen characters emanating from an off-screen point.
The center channel isn't behind most home TV screens either, rather it's usually above or below. Maybe I'm splitting hairs.

The decades long practice of locking dialog into the center channel is more of a convention rather than any real rule. And that convention can help speed up the process of mixing a 5.1 channel film soundtrack which is often produced very late in the production, perhaps a couple or so weeks or maybe only a few days before the movie hits theater screens.

Sound designers could use the modern editing/mixing tools available to them right now to image dialog left or right of center and even pan it across the screen. Most home 5.1 setups have the speakers placed reasonably close together. Various "fly by" surround panning effects often work just fine in a home theater setup. Why should dialog panning between three speakers near a TV set not be able to work?

What's really funny is some 5.1 mixed movies will place dialog in the surrounds, but still stick with locking the dialog on the front stage in the center channel. Weird.

quote: Tom Petrov
It wasn't much of contest. DTS really had no chance as it was generally too expensive for most laserdisc fans.
Huh? First of all Laserdisc was very much a niche market product, not a mainstream format like DVD grew to be. Most LD collectors weren't in the penny pinching crowd.

DTS on LD wasn't really anymore expensive than Dolby Digital. If you had a Laserdisc player with a standard digital output DTS Laserdiscs would have played just fine. An outboard DTS decoder was required. But Dolby Digital required the same thing. Further Dolby Digital required LD players with a compatible RF output. DTS had a pretty respectable number of Laserdisc releases so I wouldn't regard it as a failed format or not having had much of a chance against Dolby Digital.

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Tom Petrov
Five Guys Lover

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From: El Paso, TX
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 - posted 01-03-2011 11:59 PM      Profile for Tom Petrov     Send New Private Message       Edit/Delete Post 
quote:
Huh? First of all Laserdisc was very much a niche market product, not a mainstream format like DVD grew to be. Most LD collectors weren't in the penny pinching crowd.

DTS on LD wasn't really anymore expensive than Dolby Digital. If you had a Laserdisc player with a standard digital output DTS Laserdiscs would have played just fine. An outboard DTS decoder was required. But Dolby Digital required the same thing. Further Dolby Digital required LD players with a compatible RF output. DTS had a pretty respectable number of Laserdisc releases so I wouldn't regard it as a failed format or not having had much of a chance against Dolby Dig

What do you mean huh? Dolby Digital on laserdiscs out numbered 7-1 compared to DTS. Also the cost of DTS laserdisc were almost ALWAYS more money than the same movie on Dobly Digital. It was common for DTS to be a premium over the Dolby.

The other big issue for DTS was that it almost alway required an external decorder which meant you had to have an receiver that had a 6 channel in. 6 channel in was very rare in 1995-1997 (thus was yet around). And if you had one, it was usually very top-end.

It was rare to find a DTS/RF/Dobly Digital machine early as most already had adopted DoblyRF/DVD with no 6 channel in.

Now Dolby had a huge advantage, a lot of Dolby units were DVD/SAT Dolby Digital ready in 1995 (can't remember the EXACT date). By the time DTS really entered laserdisc it was all over as most folks already owned RF laserdisc players (which required and upgraded machine from earlier unit), a Dolby Digital RF machine (which always carried an on board DVD input) and rarely would these machines have 6 channel in.

The cost of getting DTS laserdisc was way too much for the average laserdisc consumer.

Optical laserdisc out machines were NEVER cheap. To get an RF/Optical out machine, $800 was the minimum if I remember correctly.

Almost in all circumstances, when DTS enter the laserdisc market, you required a very high dollar upgrade to your sound equipment which was already done long ago with Dolby Digital LDs. DTS entered very late in the game.

You can look at some of the original pricing on this website below.

Dolby/DTS LDS

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Joe Redifer
You need a beating today

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From: Denver, Colorado
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 - posted 01-04-2011 12:59 AM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
quote: Tom Petrov
The other big issue for DTS was that it almost alway required an external decorder which meant you had to have an receiver that had a 6 channel in.
The hell are you talking about? I've never even seen an external DTS decoder, though I'm not saying they didn't exist. The first receiver I bought that was 5.1 capable had coaxial in and RF in. It did the Dolby Digital decoding itself as well as the DTS decoding. DVDs weren't yet around at the time. The next receiver that I bought did not have RF in, but it still did the DTS and Dolby Digital decoding itself. There weren't too many receivers with RF inputs. You had to buy an external RF demodulator to get proper Dolby Digital from LaserDisc on most receivers.

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