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14
2-5.
Audio
Signals
Dolby
Digital
Sound
with
5.1
Channels
sub-woofer
right
speaker
left
speaker
center
channel
speaker
surround
sound
speaker
surround
sound
speaker
Digital
Audio
Signals
The
DIRECTV
HD
Receiver
will
be
the
focal
center
of
your
home
entertainment
system
comprising
a
variety
of
components,
such
as
TV,
DVD,
VCR,
etc.
and
external
audio
systems.
Since
digital
programs
being
broadcast
contain
digital-quality
audio,
you
can
create
a
home
theater
by
sending
audio
signals
from
the
DIRECTV
HD
Receiver
to
your
audio
system
externally.
HD
digital
signals
use
the
Dolby
Digital
audio
encoding
system
-
the
same
digital
sound
used
in
many
movie
theaters,
on
DVDs,
and
in
many
home
theater
systems.
When
you
tune
to
a
channel,
the
DIRECTV
HD
Receiver
can
send
signals
either
to
a
Dolby
Digital
decoder/receiver
or
to
a
PCM
(normal
digital)
decoder.
(*
Refer
to
Section
3-7
Connection
for
Audio
for
making
the
required
external
connections
to
your
system.)
Dolby
Digital
audio,
formally
known
as
Audio
Coding
3rd
Generation
is
a
coding
technique
that
can
provide
up
to
five
independent,
full
frequency
response
audio
channels
(three
in
left,
center,
and
right,
two
in
rear
left
and
right,)
and
one
low
frequency
effect
for
a
sound
you
can
feel.
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