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» Film-Tech Forum   » Operations   » Film Handlers' Forum   » DTS Stereo (Page 1)

 
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Author Topic: DTS Stereo
Steve Kraus
Film God

Posts: 4067
From: Chicago, IL, USA
Registered: May 2000


 - posted 02-12-2002 09:10 PM      Profile for Steve Kraus     Send New Private Message       Edit/Delete Post 
(I refer to the SVA analog track not the discontinued 2:4 matrixed digital system.)

In absence of other information do we presume SR or A?

I run a tremendous variety of films and in my experience A is pretty rare; if it's stereo it's almost always SR. I encounter mono more than I do A. Can one make a presumption of SR about a print credited to DTS as well?

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Richard Fowler
Film God

Posts: 2389
From: Ft. Lauderdale, FL, USA
Registered: Jun 2001


 - posted 02-12-2002 10:56 PM      Profile for Richard Fowler   Email Richard Fowler   Send New Private Message       Edit/Delete Post 
DTS analog stereo track was a type A, but may have changed....Karen should know.
Richard Fowler
TVP-Theatre & Video Products Inc. www.tvpmiami.com

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Ray Derrick
Master Film Handler

Posts: 310
From: Sydney, Australia
Registered: Sep 2001


 - posted 02-13-2002 02:34 AM      Profile for Ray Derrick   Email Ray Derrick   Send New Private Message       Edit/Delete Post 
Now this is a very good question! As Richard says DTS Stereo has always been A-type. I was told some time back by a DTS insider that this was because DTS didn't want to get involved with any legal shootout down at the Double-D corral (you know, patents an' all). However it IS very confusing because traditionally, if a film has both Dolby Digital AND DTS then the analog track will always be SR. But if it has only DTS then it should (in theory) always be A-type. The big question is - has this changed in recent times, particularly since DTS developed their SR emulation scheme for the DTS-6AD? As far as I know it has not, but if it has changed, then surely the logo should be also changed to "DTS Stereo SR"? How about it young Karen?

------------------
Ray Derrick
President/Chief Engineer
Panalogic Corporation Sydney, Australia
Phone: 61 (0)2 9894 6655 Fax: 61 (0)2 9894 6935


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Brad Miller
Administrator

Posts: 17687
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 02-13-2002 03:57 AM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
I'm a bit curious as to what the last dts only movie was. I have a feeling it's been at least a few years since an A track was produced, but a very interesting question nonetheless. Karen?


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Leo Enticknap
Film God

Posts: 7033
From: Loma Linda, CA
Registered: Jul 2000


 - posted 02-13-2002 04:46 AM      Profile for Leo Enticknap   Author's Homepage   Email Leo Enticknap   Send New Private Message       Edit/Delete Post 
'The Day Trippers' was the last one I remember.

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Michael Brown
Phenomenal Film Handler

Posts: 1518
From: Bradford, England
Registered: May 2001


 - posted 02-13-2002 06:41 AM      Profile for Michael Brown   Email Michael Brown   Send New Private Message       Edit/Delete Post 
What about recient films Anti-Trust, Heartbreakers and Legally Blond which were DTS/SDDS releases. No SRD. I was assuming the analog tracks on these would be DTS Stereo. (and thus A type)


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Jon Bartow
Master Film Handler

Posts: 287
From: Massachusetts
Registered: Nov 1999


 - posted 02-13-2002 07:07 AM      Profile for Jon Bartow   Email Jon Bartow   Send New Private Message       Edit/Delete Post 
"Original Sin" was in DTS only without SRD. I don't remember a SDDS track but then again none of my theaters use the SDDS system so I don't usually look for it.
As I remember when it was playing in a house without a DTS player it was in SR, and supposedly it sounded fine.

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Jeffry L. Johnson
Jedi Master Film Handler

Posts: 809
From: Cleveland, Ohio, USA
Registered: Apr 2000


 - posted 02-13-2002 12:04 PM      Profile for Jeffry L. Johnson   Author's Homepage   Email Jeffry L. Johnson   Send New Private Message       Edit/Delete Post 
In 1997 January I posted to rec.arts.movies.tech that, in response to my email query, Karen Hultgren said that DTS has used SR noise reduction for three years.

"Universal almost always releases their movie's stereo optical tracks in SR." -- Patrick T. Chamberlain, 1996 April 4.


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Jesse Skeen
Phenomenal Film Handler

Posts: 1498
From: Sacramento, CA
Registered: Aug 2000


 - posted 02-13-2002 02:16 PM      Profile for Jesse Skeen   Email Jesse Skeen   Send New Private Message       Edit/Delete Post 
It should say on the leader if it is SR, usually "SR STEREO"- I remember Original Sin was actually labeled "SRD" even though it wasn't Dolby Digital- if it just says "STEREO" or "DTS", I play it in Dolby A to be on the safe side since it sounds terrible if you play anything in SR that isn't supposed to be.

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Bobby Henderson
"Ask me about Trajan."

Posts: 10701
From: Lawton, OK, USA
Registered: Apr 2001


 - posted 02-13-2002 06:55 PM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
Actually, all Universal Studios movies still have their analog SVA tracks branded as "DTS Stereo", even though the DTS Stereo logo is rarely featured on their film credits anymore. The NY and LA area stack ads still use the icon.

As to the A or SR thing, I guess it could go either way. I have some old THX TAP sheets where films like "Casper" were listed as having "DTS Stereo SR" type tracks and to play back those tracks using Dolby SR or SR compatible modes.

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Bobby Henderson
"Ask me about Trajan."

Posts: 10701
From: Lawton, OK, USA
Registered: Apr 2001


 - posted 02-13-2002 07:03 PM      Profile for Bobby Henderson   Email Bobby Henderson   Send New Private Message       Edit/Delete Post 
Oh, and on occaision some MGM movies will actually appear with only DTS Digital and DTS Stereo audio.

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Karen Hultgren
Master Film Handler

Posts: 492
From: Agoura Hills, CA, USA
Registered: Mar 2000


 - posted 02-13-2002 08:06 PM      Profile for Karen Hultgren   Author's Homepage   Email Karen Hultgren   Send New Private Message       Edit/Delete Post 
Hi Steve,

Yes, here at DTS, we can do optical tracks in either A-Type of SR-Type. Both are compatible with Dolby A-Type and SR playback systems.

Karen at DTS

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Karen Hultgren
Master Film Handler

Posts: 492
From: Agoura Hills, CA, USA
Registered: Mar 2000


 - posted 02-13-2002 08:09 PM      Profile for Karen Hultgren   Author's Homepage   Email Karen Hultgren   Send New Private Message       Edit/Delete Post 
Just a quick note, most optical tracks these days are done in SR. Very few release in A-Type. Whatever the studio wants, we do.

And, DTS STEREO can be either A-Type or SR-Type. We can do both.

Karen at DTS

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Gordon McLeod
Film God

Posts: 9460
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 02-13-2002 09:23 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Is it not more of a question of what is on the mag printmaster you recieve to make the optical neg from rather than an encoder question to determin the final release?

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Ray Derrick
Master Film Handler

Posts: 310
From: Sydney, Australia
Registered: Sep 2001


 - posted 02-14-2002 05:55 AM      Profile for Ray Derrick   Email Ray Derrick   Send New Private Message       Edit/Delete Post 
So obviously the answer to Steve's question, at least with recent films, is "assume SR". But is there a definitive way to tell, other than a listening test? In other words, is "SR" always marked on the leader with a DTS-only SR print, Karen?


------------------
Ray Derrick
President/Chief Engineer
Panalogic Corporation Sydney, Australia
Phone: 61 (0)2 9894 6655 Fax: 61 (0)2 9894 6935

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