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SDDS and uses
Today, a majority of release prints for major studio films still are created with all three digital tracks -- Dolby Digital, DTS and Sony's SDDS ( each digital track uses different film geography so all three, as well as the analog track, can coexist on one print ) -- but most professionals in the industry now consider SDDS a dying system.

SDDS and ATRAC1
ATRAC1 was first used in Sony's own theater format SDDS system in the 1990s, and in this context is a direct competitor to Dolby Digital ( AC3 ) and DTS.

SDDS and with
A photo of a 35 mm film print featuring all four audio formats ( or " quad track ") — from left to right: Sony Dynamic Digital Sound | SDDS ( blue area to the left of the sprocket holes ), Dolby Digital ( grey area between the sprocket holes labelled with the Dolby " Double-D " logo in the middle ), analog optical sound ( the two white lines to the right of the sprocket holes ), and the Digital Theater System | DTS time code ( the dashed line to the far right ).
A photo of a 35 mm film print featuring all four audio formats ( or " quad track ")- from left to right: SDDS ( blue area to the left of the sprocket holes ), Dolby Digital ( grey area between the sprocket holes labelled with the Dolby " Double-D " logo in the middle ), analog optical sound ( the two white lines to the right of the sprocket holes ), and the Digital Theater System | DTS time code ( the dashed line to the far right.
Although originally slated to premier with Hook, the SDDS project was delayed and instead premiered on June 17, 1993 with the Arnold Schwarzenegger film Last Action Hero.
Since then, over 1, 400 movies have been mixed in Sony Dynamic Digital Sound, and as of early 1999 over 6, 750 movie theaters were equipped with SDDS.
In addition, in the early days of the " megaplex explosion ", Sony struck a deal with AMC Theatres in 1994 to include SDDS in all of their new auditoriums.
Along with being the most expensive to install ( and the last to arrive ), there were major reliability issues with SDDS.
While most major studios eventually began putting SDDS tracks on their releases ( Universal exclusively supported DTS until 1998, and Paramount and Fox placed SDDS tracks on only their biggest releases until 2001-2002 ), most independent films only came with Dolby Digital tracks, leaving many SDDS-equipped theaters playing analog sound in otherwise state-of-the-art auditoriums.
AMC, for example, has begun to replace their SDDS equipment with Dolby Digital processors.
SDDS channel arrangement with 5 front channels, 2 surround channels and a subwoofer channel or " 5 / 2. 1 ".
Since SDDS is read at the top of the projector, the data is delayed slightly to restore synchronization with the picture.
A photo of a 35 mm film print featuring all four audio formats ( or quad track )- from left to right: Sony Dynamic Digital Sound ( SDDS ) ( blue area to the left of the sprocket holes ), Dolby Digital ( grey area between the sprocket holes labelled with the Dolby Double-D logo in the middle ), analog optical sound ( the two white lines to the right of the sprocket holes ), and the DTS ( sound system ) | DTS time code ( the dashed line to the far right.
Sony Dynamic Digital Sound ( SDDS ) is an 8 channel cinema configuration which features 5 independent audio channels across the front with two independent surround channels, and a Low-frequency effects channel.
A photo of a 35 mm film print featuring all four audio formats ( or " quad track ")- from left to right: Sony Dynamic Digital Sound | SDDS ( blue area to the left of the sprocket holes ), Dolby Digital ( grey area between the sprocket holes labelled with the Dolby " Double-D " logo in the middle ), analog optical sound ( the two white lines to the right of the sprocket holes ), and the Digital Theater System | DTS time code ( the dashed line to the far right.
The three formats that followed, Dolby Digital, DTS and SDDS, can co-exist with each other and the analog optical soundtrack on a single version of the film print.
SDDS premiered with the film Last Action Hero.
The outermost strip ( left of picture ) contains the Sony Dynamic Digital Sound | SDDS track as an image of a digital signal ; the next contains the perforations used to drive the film through the projector, with the Dolby Digital track between them.
A photo of a 35 mm film print featuring all four audio formats ( or " quad track ")- from left to right: Sony Dynamic Digital Sound | SDDS ( blue area to the left of the sprocket holes ), Dolby Digital ( grey area between the sprocket holes labelled with the Dolby " Double-D " logo in the middle ), analog optical sound ( the two white lines to the right of the sprocket holes ), and the DTS time code ( the dashed line to the far right.
Each complex is around with multiple concession areas, 10 to 15 screens with SDDS stereo sound, stadium seating and a capacity of 3, 200 to 5, 000.

SDDS and 8
Out of the 1, 400 plus films mixed in SDDS, only 97 of them to date have been mixed to support the full 8 channels, most of them Sony ( Via Sony Pictures / Columbia / Tristar ) releases.
Because of the added installation expense, the majority of SDDS installations are 6 channel ( 5. 1 ) installations, as opposed to 8 channel ( 7. 1 ) installations.
: See also List of 8 channel SDDS films. SDDS 8-Channels ; this logo is used when all 8 channels are used as opposed to the usual six.

SDDS and all
Almost all current release cinema prints are of this type and will probably also include SDDS data and a timecode track to synchronize CD-ROMs carrying DTS soundtracks.
The THX system is not a recording technology, and it does not specify a sound recording format: all sound formats, whether digital ( Dolby Digital, SDDS ) or analog ( Dolby Stereo, Ultra-Stereo ), can be " shown in THX.
Dolby Digital, Dolby Pro Logic II, DTS, and SDDS are all commonly 5. 1 systems.
The cinema houses all major digital sound systems: SDDS, Dolby Digital and DTS.

SDDS and channels
SDDS decoders provides the ability to downmix to fewer channels if required.
Unlike Dolby Digital and SDDS, or the home version of DTS, the theatrical DTS system only carries 5 discrete channels on the CD-ROMs.

SDDS and /
And via its highly successful Columbia / Tristar Studios arm, it was able to use SDDS as the exclusive digital soundtrack on its titles.

SDDS and .
At far left and far right, outside the perforations, is the Sony Dynamic Digital Sound | SDDS soundtrack as an image of a digital signal.
At far left and far right, outside of the # Perforations | KS-size perforations, is the Sony Dynamic Digital Sound | SDDS soundtrack as an image of a digital signal.
New digital soundtracks introduced since the 1990s include Dolby Digital, which is stored between the perforations on the sound side ; SDDS, stored in two redundant strips along the outside edges ( beyond the perforations ); and DTS, in which sound data is stored on separate compact discs synchronized by a timecode track stored on the film just to the right of the analog soundtrack and left of the frame.
However the early 1990s saw the advent of digital sound systems ( Dolby Digital, DTS and SDDS ) for 35 mm prints which meant that 35 mm could finally match 70 mm for sound quality but at a far lower cost.
' Sony Dynamic Digital Sound ' ( SDDS ) ( Japanese: ソニーダイナミックデジタルサウンド ) is a cinema sound system developed by Sony.
The code name for the SDDS project was " Green Lantern ", taken from the name of the comic book hero and the old term of " magic lantern " used to describe the original projected pictures in the late 19th century.
At Semetex, the SDDS Chief Architect was Jaye Waas and the Chief Optical Engineer was Mark Waring.
As Sony engineers became more actively involved in the project, the design of the SDDS format evolved toward a more robust implementation, including the use of 5: 1 ATRAC data compression, extensive error detection and correction, and most critically redundancy.
The SDDS development took just 11 months from concept to working sound camera.
When it came time for deployment, since Sony also owned the Sony Theatres chain ( later sold to Loews Theatres ), it was able use SDDS in its own theatres.
This gave SDDS a much needed, albeit artificial, kick-start.
Due to their placement on the very edges of the film stock, SDDS tracks are more prone to damage than the other digital formats.

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