Denon AVR-2805 Operating Instructions Manual page 92

DTS-ES Extended Surreund is a new multi-channel digital signal fermat developed by Digital Theater Systems Inc. While offering high compatibility
with the conventional DTS Digital Surround format, DTS-ES Extended Surround greatly improves the 360-degree surround impression and space
expression thanks to further expanded surreund signals. This format has been used prefessionally in movie theaters since 1999.
In addition to the 5.1 surround channels (FL, FR, C, SL, SR and LFE), DTS-ES Extended Surreund alse offers the SB (Surround Back, sometimes
also referred te as "surreund center") channel for surround playback with a total ef 6.1 channels. DTS-ES Extended Surreund includes two signal
formats with different surreund signal recording methods, as described belew.
DTS-ES
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Discrete 6.1
DTS-ES Discrete 6.1 is the newest recording format. With it, all 6.1 channels (including the SB channel) are recorded independently using a
digital discrete system. The main feature of this format is that because the SL, SR and SB channels are fully independent, the seund can be
designed with total freedom and it is possible to achieve a sense that the aceustic images are moving about freely among the backgreund
sounds surrounding the listener from 360 degrees.
Though maximum perfermance is achieved when sound tracks recorded with this system are played using a DTS-ES decoder, when played
with a conventional DTS deceder the SB channel signals are autematically down-mixed to the SL and SR channels, se none of the signal
components are lost.
DTS-ES
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Matrix 6.1
With this format, theadditienal SB channel signals undergo matrix encoding and are input tethe SLand SR channels beforehand. Upon
playback they are deceded to the SL, SR and SB channels. The performance of the encoder used at the time of recording can be fully matched
using a high precision digital matrix decoder developed by DTS, thereby achieving surround sound mere faithful to the preducer's sound design
aims than with conventional 5.1- er 6.1-channel systems.
In additien, the bit stream fermat is 100% compatible with cenventional DTS signals, so the effect ef the Matrix 6.1 format can be achieved
even with 5.1 -channel signal seurces. Of course it is also possible to play DTS-ES Matrix 6.1 encoded sources with a DTS 5.1-channel decoder.
When DTS-ES Discrete 6.1 er Matrix 6.1 encoded sources are decoded with a DTS-ES deceder, the format is autematically detected upon
deceding and the optimum playing mode is selected. However, seme Matrix 6,1 sources may be detected as having a 5,1-channel fermat, so the
DTS-ES Matrix 6.1 mede must be set manually te play these sources.
(For instructions on selecting the surreund mode, see page 74.)
The DTS-ES decoder includes another functien, the DTS Nee:6 surround mode fer 6.1-channel playback of digital PCM and analog signal sources.
DTS Neo:6
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surround
This mode applies conventional 2-channel signals to the high precision digital matrix decoder used fer DTS-ES Matrix 6.1 to achieve 6.1-
channel surreund playback. High precision input signal detection and matrix processing enable full band repreduction (frequency response ef
20 Hz to 20 kHz or greater) fer all 6.1 channels, and separatien between the different channels is impreved to the same level as that of a digital
discrete system.
DTS Nee:6 surround includes twe modes for selecting the eptimum decoding fer the signal seurce.
• DTS Neo:6 Cinema
This mode is optimum fer playing movies. Deceding is perfermed with emphasis on separation performance te achieve the same
atmesphere with 2-channel sources as with 6.1-channel sources.
This mode is effective for playing sources recerded in conventional surreund fermats as well, because the in-phase cemponent is assigned
mainly to the center channel (C) and the reversed phase compenent to the surreund (SL, SR and SB channels).
• DTS Neo:6 Music
This mode is suited mainly for playing music. Changes in the sound quality are reduced by decoding with emphasis on the front channel
signals (FL and FR), and a natural sense of expansion is given te the sound field by the effect ef the surround signals eutput frem the center
(C) and surround (SL, SR and SB) channels.
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