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DTS Neo:6
This Rotel processor features a second type of DTS surround sound
decoding: DTS Neo:6. This decoding system is similar to Dolby Pro
Logic II and is designed for playback of any 2-channel stereo recording,
either matrix-encoded or not. The Neo:6 decoder can be used with any
conventional 2-channel source such as a stereo TV or FM broadcast or
a CD. It can also be used as an alternative method of decoding matrix-
encoded Dolby Surround recordings or TV broadcasts. Activate the DTS
Neo:6 decoding with the PLIIx MODE button on the front panel or with
the SUR+ key on the remote as detailed later in this section. DTS Neo:6
is not used with DTS 5.1 digital sources and the button need not be
pressed for those recordings.
Dolby Digital Surround EX
DTS-ES 6.1 and 7.1 Channel Surround
In 1999, the first Dolby Digital soundtrack was released to theaters with
an additional center back surround channel, intended to increase the
directional effects from behind the audience. This additional surround
channel is encoded into the two existing surround channels in Dolby Digital
5.1, using a matrix encoding process similar to that used previously in
Dolby Surround. This new extended surround capability is called Dolby
Digital Surround EX.
DTS has added a similar capability for recording this extended surround
information called DTS-ES® 6.1 Matrix. They have also taken it one step
further and developed the capability to record this extended surround
information as a discrete channel in a system called DTS-ES® 6.1
Discrete.
All of these systems are extensions of the existing Dolby Digital 5.1 and DTS
5.1 digital surround sound formats. Users with one center back speaker (a
6.1 configuration) or two center back speakers (a 7.1 configuration) can
take advantage of this extended surround information. On traditional 5.1
channel systems, Dolby Digital Surround EX or DTS-ES 6.1 discs sound
exactly the same as 5.1 channel discs in each respective format.
If you have configured your system with one or two center back speakers,
decoding of DTS-ES discs is automatic, just as it is with standard DTS
soundtracks. Likewise, decoding of Dolby Digital Surround EX discs is
automatic with one exception. Some Surround EX titles do not have the
detection "flag" encoded on the disc. To activate the Dolby Digital Surround
EX features for these discs (or for standard 5.1 channel Dolby Digital
discs), you must manually activate Dolby Surround EX processing.
Dolby Pro Logic IIx 6.1 and 7.1 Channel Surround
This technology from Dolby uses advanced matrix decoding for the
surround channels in a 6.1 channel or 7.1 channel system. Working
with any 2.0 channel or 5.1 channel recording, Dolby Pro Logic IIx
processing distributes the surround channel information among three
or four surround channels, with a Music mode optimized for musical
recordings and a Cinema mode optimized for film soundtracks
Dolby Pro Logic IIz 7.1 Height Surround
The latest technology from Dolby delivers enhanced effects through
the addition of front height speakers. These added channels create a
lifelike soundstage It identify and decode the spatial cues that occur
naturally in all content whether stereo, 5.1, music CD 5.1 and 7.1
channel sources then process ambient sound effects such as wind or
rain fall and direct them to the front height speakers.
Rotel XS 6.1 and 7.1 Channel Surround
This RSP-1572 also features Rotel XS (eXtended Surround) processing
provides extended surround performance on 6.1 and 7.1 channel systems.
The key benefit of Rotel XS is that it works at all times with all multichannel
digital signals, even those that might not otherwise activate Dolby Digital
EX or DTS-ES surround decoding for the center back channel(s). Always
available when center back speaker(s) are configured in the system setup,
Rotel XS decodes the surround channels and distributes the extended
surround channels to the center back speaker(s) in a way that tends to
create a diffuse surround effect. Rotel XS works with matrix-encoded
surround signals (such as non-flagged DTS-ES and Dolby Surround EX
discs) as well as digital source material that is not Dolby Surround EX
encoded (such as DTS 5.1, Dolby Digital 5.1, and even Dolby Pro Logic
II decoded Dolby Digital 2.0 recordings).
Dolby Digital Plus
Built on Dolby Digital, the multichannel audio encoding standard for
DVD and HD broadcasts, Dolby Digital Plus was designed for the new
high-resolution delivery formats, but remains compatible with current A/V
processors. It is supported by the HDMI digital connection standard. Dolby
Digital Plus can provide up to 7.1 channels with discrete channel output
at higher bit rates than Dolby Digital. Dolby Digital Plus is an optional
sound format for Blu-ray, and a mandatory inclusion for HD DVD discs.
Dolby True HD
Dolby TrueHD is based on lossless coding technology to deliver studio
master-quality sound. Dolby TrueHD supports up to eight full-range
channels (the maximum allowed by Blu-Ray) of 24-bit/192 kHz audio.
Dolby TrueHD is supported by the HDMI v1.3 digital connection.
Additional features include Dialogue Normalization, which maintains
the same volume level when changing to other Dolby Digital and Dolby
TrueHD programming, and Dynamic Range Control (or 'Night Mode'),
reducing peak volume levels to allow late-night viewing of high-energy
surround sound without disturbing others. Dolby TrueHD is an optional
sound format for Blu-ray Disc, and a mandatory format for HD DVD.
DTS-HD Master Audio &
DTS-HD High Resolution Audio
Like Dolby's TrueHD, DTS-HD Master Audio is an advanced lossless
audio codec which is an optional sound format for Blu-ray discs, again
delivering the original recorded sound 'bit-for-bit'. It is also an optional
format for HD-DVD disc recordings. DTS-HD Master Audio is compatible
with the HDMI v1.3 connection standard, and supports a maximum of
192kHz sampling at 24-bit audio in 5.1 CH mode, and 24bit/96KHz
resolution for eight channels in multichannel mode. A DTS-HD capable
processor can also decode discs recorded with DTS-HD High Resolution
Audio. This format is not lossless but delivers virtually all of the original
recording, though not literally identical to the studio master.
DSP Music Modes
Unlike all of the formats mentioned above, the RSP-1572 offers four
surround modes that are not part of a specific recording/playback system.
These modes (DSP 1–4) use digital signal processing that adds special
acoustic effects to any signal. DSP processing can be used with Dolby
Surround recordings, Dolby Digital recordings, CDs, radio broadcasts, or
any other source material; however, typically DSP settings would be used
with source material for which there is no specific surround decoder.
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