Harman Kardon AVP-1A Owners Manual - Page 7

LUCASFILM, Audio, Systems

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The Goal Of LUCASFILM Home THX Audio Systems The film industry has a clearly-defined standard for the reproduction of film soundtracks. In practice, however, achieving the standard is quite challenging. Perhaps the best method for measuring the success of various systems is by looking at their acceptance by the professionals who use them. The THX Sound System clearly dominates the field, both in theatres and in film studio dubbing stages. If you wish to hear the soundtrack as the director did, you must duplicate the sonic experience of the dubbing stage in your home. And the majority of all standardized dubbing stages now use THX Sound System. The objective of Lucasfilm Home THX Cinema is to bring precisely this performance standard to a home environment in order to give the filmmaker a transparent path between his creation and the experience of the viewer. In general terms, this requires solving the problem of transferring sound from a large movie theatre or dubbing stage to a smaller home environment without compromising its character (a non-trivial task, in view of the radically differing acoustical properties of large and small rooms). In addition, there are many specific design objectives which define the total performance of the system: • A wide frequency range, extending to the limits of audibility • Smooth naturally balanced overall sound and excellent dialog intelligibility • A wide dynamic range with extremely low distortion • Well-matched timbre (tonal balance) between front speakers and surround speakers • Precise localization of specific sounds • Envelopment by ambient soundfield • Superb performance with non-film music sources

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The
Goal
Of
LUCASFILM
Home
THX
Audio
Systems
The
film
industry
has
a
clearly
-defined
standard
for
the
reproduction
of
film
soundtracks.
In
practice,
however,
achieving
the
standard
is
quite
challeng-
ing.
Perhaps
the
best
method
for
measuring
the
success
of
various
systems
is
by
looking
at
their
acceptance
by
the
professionals
who
use
them.
The
THX
Sound
System
clearly
dominates
the
field,
both
in
theatres
and
in
film
studio
dubbing
stages.
If
you
wish
to
hear
the
soundtrack
as
the
director
did,
you
must
duplicate
the
sonic
experience
of
the
dub-
bing
stage
in
your
home.
And
the
majority
of
all
stan-
dardized
dubbing
stages
now
use
THX
Sound
System.
The
objective
of
Lucasfilm
Home
THX
Cinema
is
to
bring
precisely
this
performance
standard
to
a
home
environment
in
order
to
give
the
filmmaker
a
transparent
path
between
his
creation
and
the
expe-
rience
of
the
viewer.
In
general
terms,
this
requires
solving
the
problem
of
transferring
sound
from
a
large
movie
theatre
or
dubbing
stage
to
a
smal
ler
home
environment
without
compromising
its
character
(a
non
-trivial
task,
in
view
of
the
radically
differing
acoustical
properties
of
large
and
small
rooms).
In
addition,
there
are
many
specific
design
objectives
which
define
the
total
performance
of
the
system:
•
A
wide
frequency
range,
extending
to
the
limits
of
audibility
•
Smooth
naturally
balanced
overall
sound
and
excellent
dialog
intelligibility
•
A
wide
dynamic
range
with
extremely
low
distortion
•
Well
-matched
timbre
(tonal
balance)
between
front
speakers
and
surround
speakers
•
Precise
localization
of
specific
sounds
•
Envelopment
by
ambient
soundfield
•
Superb
performance
with
non
-film
music
sources