Terminology
Dolby Digital
Dolby Digital is a digital audio compression technology
developed
by
Dolby Laboratories that
al
lows large quantities of
audio data to be efficiently recorded on discs. It
is compatible
with audio signals from mono
(1
channel)
all
the way up to 5.1-
channel surround sound. The signals for the different channels
are completely independent, and since the sound
is
high quality
digital there is
no
loss
of sound quality.
DTS
Rear
Subwoofer
Speaker
layout for enjoying
Dolby Digital
sound/DTS sound
Th
is is a home-use digital sound format
of
the
DTS
Sound
Syst
em
.
Thi
s is a
hi
gh quality sound syste
m,
developed
by
Digital Theater Systems
Co
rp
for use
in
movie theaters.
DTS
has six independent sound tracks. The theater presentation
is
fully
realized in the home
and other setting
s.
DTS
is
th
e
abbreviation for Digital
Th
eater Systems
Dolby
Pro Logic
II
Dolby
Pro
Logic
II
provides multichannel surround sound from
any 2 channel source.
It
reproduces extended bandwidth
playback with
5.1
channels.
This is made possible by an advanced matrix surround decoder.
This new decoder
is
able
to draw out spatial characteristics
of
the recording without adding tonal coloration or artificial delays
th
at did not exist
in
the
original.
Linear PCM audio
LPCM
is a signal recording format used for music
COs. Whereas
music
COs
are recorded at
44.1
kHz/ 16 bits,
DVDs
are recorded
at 48
kHz/
16
bits to 96 kHz/24 bits, thereby achieving higher
sound quality than music
COs.
61
-
EN
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