10
THX Features
T
HX FeaturesTHX Features
THX Features
The SSP180 and SSP220 include a THX
processing mode to enhance your audio
experience of film soundtracks.
For optimal video performance, THX
recommends bypassing video scaling and
video conversion (i.e. Composite Video In to
Composite Video Out; S-Video In to S-Video
out; Component Video In to Component
Video Out; HDMI In to HDMI Out)
THX is an exclusive set of standards and
technologies established by the world-
renowned film production company, Lucasfilm
Ltd. THX grew from a desire to make your
experience of the film soundtrack, in both
cinemas and in home theaters, as faithful as
possible to the director’s intention.
A film soundtrack is mixed in a special cinema
called a dubbing stage, and is designed to be
played back in large cinemas with similar
equipment and conditions. The soundtrack is
then transferred directly onto Laserdisc, VHS
tape, DVD, and so on. It is not changed for
playback in a small home theater, and
because of this tonal and spatial errors can
occur. THX engineers developed the patented
THX technologies to accurately translate the
sound from the cinema environment into the
home, to correct these errors.
THX cinema processing features include:
• re-equalization
• timbre matching
• adaptive decorrelation
• THX Ultra2
• THX surround EX
• ASA (Advanced Speaker Array)
On this product, when the THX indicator is
on, THX processing mode is automatically
activated (see page 24.
Re
ReRe
Re-
--
-equalization
equalizationequalization
equalization
The tonal balance of a film soundtrack is
excessively bright and harsh when played
back over audio equipment in the home.
Re-equalization restores the correct tonal
balance for listening to the soundtrack in a
small home theater.
Timbre matching
Timbre matchingTimbre matching
Timbre matching
The human ear changes our perception of a
sound depending on the direction the sound
is coming from. In a cinema, there is an array
of surround speakers so the surround
information is all around you. The timbre
matching feature filters the information going
to the surround speakers so that they more
closely match the tonal characteristics of
sound coming from the front speakers in a
cinema. This ensures seamless panning
between the front and surround speakers.
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