Denon AVC-A11XV Operating Instructions Manual page 70

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Additional Information
When DTS-ES Discrete 6.1 or Matrix 6.1 encoded
sources are decoded with a DTS-ES decoder, the
format is automatically detected upon decoding and
the optimum playing mode is selected. However,
some Matrix 6.1 sources may be detected as having
a 5.1-channel format, so the DTS-ES Matrix 6.1 mode
must be set manually to play these sources. (For
instructions on selecting the surround mode (
page 25, 26).)
The DTS-ES decoder includes another function, the
DTS Neo:6 surround mode for 6.1-channel playback of
digital PCM and analog signal sources.
2 DTS Neo:6™ surround
This mode applies conventional 2-channel signals to
the high precision digital matrix decoder used for DTS-
ES Matrix 6.1 to achieve 6.1-channel surround
playback. High precision input signal detection and
matrix processing enable full band reproduction
(frequency response of 20 Hz to 20 kHz or greater) for
all 6.1 channels, and separation between the different
channels is improved to the same level as that of a
digital discrete system.
DTS Neo:6 surround includes two modes for
selecting the optimum decoding for the signal source.
• DTS Neo:6 Cinema
This mode is optimum for playing movies. Decoding
is performed with emphasis on separation
performance to achieve the same atmosphere with
2-channel sources as with 6.1-channel sources.
This mode is effective for playing sources recorded
in conventional surround formats as well, because
the in-phase component is assigned mainly to the
center channel (C) and the reversed phase
component to the surround (SL, SR and SB
channels).
• DTS Neo:6 Music
This mode is suited mainly for playing music. The
front channel (FL and FR) signals bypass the
decoder and are played directly so there is no loss
of sound quality, and the effect of the surround
signals output from the center (C) and surround (SL,
SR and SB) channels add a natural sense of
expansion to the sound field.
[4] DTS 96/24
The sampling frequency, number of bits and number
of channels used for recording of music, etc., in
studios has been increasing in recent years, and there
are a growing number of high quality signal sources,
including 96 kHz/24 bit 5.1-channel sources.
For example, there are high picture/sound quality DVD
video sources with 96 kHz/24 bit stereo PCM audio
tracks.
However, because the data rate for these audio tracks
is extremely high, there are limits to recording them
on two channels only, and since the quality of the
pictures must be restricted it is common to only
include still pictures.
In addition, 96 kHz/24 bit 5.1-channel surround is
possible with DVD audio sources, but DVD audio
players are required to play them with this high
quality.
DTS 96/24 is a multi-channel digital signal format
developed by Digital Theater Systems Inc. in order to
deal with this situation.
Conventional surround formats used sampling
frequencies of 48 or 44.1 kHz, so 20 kHz was about
the maximum playback signal frequency. With DTS
96/24, the sampling frequency is increased to 96 or
88.2 kHz to achieve a wide frequency range of over 40
kHz.
In addition, DTS 96/24 has a resolution of 24 bits,
resulting in the same frequency band and dynamic
range as 96 kHz/24 bit PCM.
As with conventional DTS Surround, DTS 96/24 is
compatible with a maximum of 5.1 channels, so
sources recorded using DTS 96/24 can be played in
high sampling frequency, multiple channel audio with
such normal media as DVD videos and CDs.
Thus, with DTS 96/24, the same 96 kHz/24 bit multi-
channel surround sound as with DVD-Audio can be
achieved while viewing DVD-Video images on a
conventional DVD-Video player ( 1). Furthermore,
with DTS 96/24 compatible CDs, 88.2 kHz/24 bit
multi-channel surround can be achieved using normal
CD/LD players ( 1).
Even with the high quality multi-channel signals, the
recording time is the same as with conventional DTS
surround sources.
What's more, DTS 96/24 is fully compatible with the
conventional DTS surround format, so DTS 96/24
signal sources can be played with a sampling
frequency of 48 kHz or 44.1 kHz on conventional DTS
or DTS-ES surround decoders ( 2).
1 A DVD player with DTS digital output capabilities
(for CD/LD players, a player with digital outputs
for conventional DTS CDs/LDs) and a disc
recorded in DTS 96/24 are required.
2 The resolution is 24 or 20 bits, depending on the
decoder.
[5] Home THX Cinema Surround
THX is an exclusive set of standards and technologies
established by the world-renowned film production
company, Lucasfilm Ltd. THX grew from George
Lucas' personal desire to make your experience of the
film soundtrack, in both movie theaters and in your
home theater, as faithful as possible to what the
director intended.
Movie soundtracks are mixed in special movie
theaters called dubbing stages and are designed to be
played back in movie theaters with similar equipment
and conditions. The soundtrack created for movie
theaters is then transferred directly onto Laserdisc,
VHS tape, DVD, etc., and is not changed for playback
in a small home theater environment.
THX engineers developed patented technologies to
accurately translate the sound from the movie theater
environment into the home, correcting the tonal and
spatial errors that occur. On the AVC-A11XV, when the
Home THX Cinema mode is on, THX post-processing
is automatically added after the Dolby Pro Logic,
Dolby Digital or DTS decoder:
2 Re-Equalization™
The tonal balance of a film soundtrack will be
excessively bright and harsh when played back over
audio equipment in the home because film
soundtracks are designed to be played back in large
movie theaters using very different professional
equipment. Re-Equalization restores the correct tonal
balance for listening to a movie soundtrack in a normal
home environment.
2 Timbre Matching™
The human ear changes our perception of a sound
depending on the direction from which the sound is
coming. In a movie theater, there is an array of
surround speakers so that the surround information is
all around you. In a home theater, only two speakers
located to the side of your head are used. The Timbre
Matching feature filters the information going to the
surround speakers so that they more closely match
the tonal characteristics of the sound coming from the
front speakers. This ensures seamless panning
between the front and surround speakers.
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Additional Information
2 Adaptive Decorrelation™
In a movie theater, a large number of surround
speakers help create an enveloping surround sound
experience, while in a home theater there are usually
only two speakers. This can make the surround
speakers sound like headphones that
spaciousness and envelopment. The surround sounds
will also collapse into the closest speaker as you
move away from the middle seating position.
Adaptive Decorrelation slightly changes one surround
channel's time and phase relationship with respect to
the other surround channel. This expands the
listening position and creates—with only two
speakers—the same spacious surround experience as
in a movie theater.
2 THX Ultra2™
Before any home theater component can be THX
Ultra2 certified, it must incorporate all the features
above and also pass a rigorous series of quality and
performance tests. Only then can a product feature
the THX Ultra2 logo, which is your guarantee that the
Home Theater products you purchase will give you
superb performance for many years to come. THX
Ultra2 requirements cover every aspect of the
product including power amplifier performance, pre-
amplifier performance and operation, as well as
hundreds of other parameters in both the digital and
analog domain.
In addition to improvements to the power amplifier
with respect to previous THX Ultra standards, three
surround modes have been added: the THX Ultra2
Cinema mode, THX Music Mode and THX Games
Mode.
2 THX Ultra2 Cinema
THX Ultra2 Cinema mode plays 5.1 movies using all 8
speakers giving you the best possible movie watching
experience. In this mode, new THX processing blends
the side surround speakers and back surround
speakers providing the optimal mix of ambient and
directional surround sounds.
DTS-ES (Matrix and 6.1 Discrete) and Dolby Digital
Surround EX encoded soundtracks will
automatically detected in Ultra2 Cinema mode if the
appropriate flag has been encoded.
Some Dolby Digital Surround EX soundtracks are
missing the digital flag that allows automatic
switching. If you know that the movie that you are
watching is encoded in Surround EX, you can
manually select the THX Surround EX playback mode,
otherwise THX Ultra2 Cinema mode will apply
processing to provide optimum replay.
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