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DIGITAL AUDIO CONNECTIONS 15
Digital Audio Connections
Audio output from the unit’s
optical/coaxial digital audio
output connector
* Digital Format must be selected as
“ORIGINAL“ or ”PCM” respectively in Menu
For your reference:
■ Dolby Digital (AC-3) is a digital sound com-
pression technique developed by the Dolby
Laboratories Licensing Corporation,
supporting 5.1-channel surround sound, as
well as stereo (2-channel) sound, this
technique enables a large quantity of sound
data to be efficiently recorded on a disc.
■ Linear PCM is a signal recording format used
in CDs. While CDs are recorded in
44.1 kHz/16 bit, DVDs are recorded in
48 kHz/16 bit up to 96 kHz /24 bit.
■ If you have a Dolby Pro Logic Surround
decoder connected to the DVD’s analog
AUDIO OUT connectors, thanks to the
”Downmix” function of the DVD you will
obtain the full benefit of Pro Logic from the
same DVD movies that provide full 5.1-chan-
nel Dolby Digital soundtracks, as well as from
titles encoded with Dolby Surround.
■ The DVD is designed to digitally output
96 kHz-PCM audio with a 96 kHz sampling
rate. However, some 96 kHz DVD's may
include copy protection codes that do not
permit digital output. For full 96 kHz fidelity
from these discs, use the analog outputs of
the DVD.
IMPORTANT: If your surround processor/D/A
converter does not support 96 kHz PCM audio,
you must use the DVD analog outputs for full
96 kHz fidelity with these discs.
Caution for the optical/coaxial
digital audio outputs:
■ When connecting an amplifier (with an
optical/coaxial digital input ) which does not
contain a Dolby Digital (AC-3) or DTS
decoder, be sure to select ”PCM” as initial
setting in the ”Digital Output” menu (see
also page 18).
Otherwise, any attempt to play a DVD may
cause such a high level of noise that it may
be harmful to your ears and damage your
speakers.
■ CD’s can be played as they would normally be
played.
Note:
■ Some first generation DTS decoders which do
not support DVD-DTS interface may not work
properly with the DVD/CD player.
Notes when connecting the
optical digital audio cable
(optional)
■ Remove the dust protection cap from the
optical digital audio output and connect the
cable firmly so that the configurations of both
the cable and the connector match.
■ Keep the dust protection cap and always
reattach the cap when not using the
connector.
Dolby Digital and DTS
Both Dolby Digital and DTS are audio formats
used to record 5.1-channel audio signals onto
the digital track of film. Both of these formats
provide six separate channels: left, right, center,
left rear, right rear, and common subwoofer.
The latest 6.1-formats, Dolby Digital EX and
DTS ES, even one (or two) additional "Surround
Back" channel for a center between the rears.
Remember, that Dolby Digital or DTS will only
play 5.1-channel sound if you’ve connected the
optical or coaxial output of the DVD player to a
DTS or Dolby Digital receiver or decoder and if
the disc was recorded in the Dolby Digital or DTS
format.
Dolby Digital is a trademark of Dolby Laboratories
Licensing Corporation.
Manufactured under license from Dolby
Laboratories. ”Dolby” and the double-D symbol
are trademarks of Dolby Laboratories.
Confidential Unpublished Works.1992-1997
Dolby Laboratories, Inc. All rights reserved.
DTS is a registered trademark of Digital Theater
Systems.
Disc:
DVD
VCD
CD
Sound recording
format:
Dolby Digital
(AC-3)
Linear PCM
(48/96 kHz
16/20/24bit)
DTS
MPEG (2.0)
MPEG-1 or
CD-DA
Linear PCM
Optical/Coaxial digital
audio output
Dolby Digital bitstream
(2-5.1 ch) or PCM
(2 ch, 48 kHz/16bit)*
Linear PCM (2 ch)
(48/96 kHz
16/20/24bit)
DTS Bitstream or no
output *
MPEG bitstream (2ch)
or linear PCM
(2 ch, 48kHz)
Linear PCM*
Linear PCM (44.1 kHz
sampling)