Overview; Overview Of Sdds Player System; Principal Features - Sony DFP-R3000 Operation Manual

Overview

Overview of SDDS Player
System
The SDDS (Sony Dynamic Digital Sound)
System is a system that reads digital audio data
recorded on 35 mm movie film in the SDDS format,
and feeds high quality digital sound to a theater sound
system.
A movie film should be played back without any
breaks. The digital audio signals recorded on the P
side and S side of the 35 mm film are corrected by the
error correction circuit. Furthermore, if a problem
where the audio signal cannot be corrected by the
error correction circuit occurs, a film in the SDDS
format can be corrected by reading the backup data
recorded on the other side of the film and played back
immediately. This allows the system to continue
playback without any breaks.
The SDDS system has a wide range of functions and
capabilities designed to meet the rigorous standards of
film sound post-production and of the exhibition
cinema. The system is also designed to be configured
in a number of variations for maximum flexibility in
installation.
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1) SDDS is a registered trademark of Sony Corporation.
4(E)

Principal Features

This system is comprised of the DFP-R3000 Digital
Film Sound Reader and the DFP-D2500 Film Sound
1)
Player
Decoder.
The principal features of this system are as follows.
Playback of 8 channels of digital audio
signals recorded in the SDDS format
The system can read 8 channels of digital audio
signals recorded in the SDDS format on the P
(picture) and S (sound) sides of the film. It features
digital processing, for little or no signal degradation
during playback.
P side
S side
Fully digital audio signal path
The DFP-D2500 is a digital cinema processor that
Utilizes Digital Signal Processing (DSP) techniques
to perform essential SDDS track decoding and room
equalization. The unit performs all audio signal
processes in the digital domain. Analog input signals
are first converted to 20 bit PCM data, then
processed. Therefore, adjustments that have been
historically performed in the analog domain (i.e.,
volume adjustment, room equalization, etc.), can now
be adjusted digitally. This ensures more stable room
equalization and audio volume adjustment in the
theater.
High quality A/D and D/A converters
High quality 20-bit A/D and 20-bit D/A converters
are used to ensure the optimum resolution of the input
and output signals. These converters are operated at a
sampling frequency (Fs) of 44.1 kHz (44,100 samples
per second).
Bypass function
The DFP-D2500 can output the auxiliary input signals
with or without processing by equalizers or for level
control. This allows the unit to connect to various
types of devices.
C (center)
L (left)
LC (left center)
SL (surround left)
R (right)
RC (right center)
SR (surround right)
SW (sub-woofer)