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Main Room Operation
SURROUND MODE CHART
MODE FEATURES
Dolby Digital Available only with digital input sources encoded with Dolby Digital data. It provides up to five separate main audio channels and a
special dedicated low-frequency effects channel.
Dolby Digital EX Available when the receiver is configured for 7.1-channel operation, Dolby Digital EX is the latest version of Dolby Digital. When
used with movies or other programs that have special encoding, Dolby Digital EX reproduces specially encoded soundtracks so that
a full 6.1/7.1 sound field is available. When the receiver is set for 7.1 operation and a Dolby Digital signal is present, the EX mode is
automatically selected. Even if specific EX encoding is not available to provide the additional channel, the special algorithms will
derive a 7.1 output.
DTS 5.1 When the speaker configuration is set for 5.1-channel operation, the DTS 5.1 mode is available when DVD, audio-only music or laser
discs encoded with DTS data are played. DTS 5.1 provides up to five separate main audio channels and a special dedicated low-fre-
quency channel.
DTS-ES 6.1 Matrix When the speaker configuration is set for 6.1/7.1 operation, playback of a DTS-encoded program source will automatically trigger
DTS-ES 6.1 Discrete the selection of one of the two DTS-ES modes. Newer discs with special DTS-ES discrete encoding will be decoded to provide six
discrete, full-bandwidth channels plus a separate low-frequency channel. All other DTS discs will be decoded using the DTS-ES
Matrix mode, which creates a 6.1-channel sound field from the original 5.1-channel soundtrack.
Dolby Pro Logic II Dolby Pro Logic II decodes full-range, discrete, left, center right, right surround and left surround channels from either matrix
Movie surround-encoded programs or conventional stereo sources when an analog input is in use. The Dolby Pro Logic II Movie mode is
Music optimized for movie soundtracks, while the Dolby Pro Logic II Music mode should be used with musical selections. The Dolby Pro
Pro Logic Logic mode re-creates original Dolby Pro Logic processing for those who prefer that presentation.
Dolby Pro Logic IIx Dolby Pro Logic IIx is the latest extension of Dolby Pro Logic II technology that creates a discrete 6.1 and 7.1 sound field from matrix
Music surround or 2-channel stereo sources in systems configured for surround back speakers. Both Movie and Music versions of
Movie Pro Logic IIx are available. These modes may also be applied to a 6-channel source connected to the 8-Channel Direct Inputs
so that the sound field is enhanced by adding back surround channels.
Logic 7 Cinema Exclusive to Audioaccess for receivers, Logic 7 is an advanced mode that extracts the maximum surround information from either
Logic 7 Music surround-encoded programs or conventional stereo material. When your system has been configured for use with Surround Back
Logic 7 Enhance Speakers (see AVR21EN Configuration/Speaker Setup), you may choose between either 7.1 or 5.1 versions of the Logic 7 modes,
while only the 5.1 versions are available when there are no surround back speakers. The Logic 7 C (or Cinema) mode should be used
with any source that contains Dolby Surround or similar matrix encoding. Logic 7 C delivers increased center channel intelligibility,
and more accurate placement of sounds with fades and pans that are much smoother and more realistic than with other decoding
techniques. The Logic 7 (Music) mode should be used with analog or PCM stereo sources. Logic 7 M enhances the listening
experience by presenting a wider front soundstage and greater rear ambience. Both Logic 7 modes also direct low-frequency
information to the subwoofer (if installed and configured) to deliver maximum bass impact. The Logic 7 E (Enhance) mode,
available only when the 5.1 option is chosen, is an extension of the Logic 7 modes that are primarily used with musical programs. Logic 7
adds additional bass enhancement, which circulates low frequencies in the 40Hz to 120Hz range to the front and surround speakers to
deliver a less localized soundstage that seems broader and wider than when the subwoofer is the sole source of bass energy.
DTS Neo:6 Cinema These two modes are available with analog sources playing, to create a 3-channel, 5-channel or 6-channel surround presentation
DTS Neo:6 Music from matrix-encoded or stereo sources. Select the Cinema version of DTS Neo:6 when a program with matrix surround encoding is
present. Select the Music version of DTS Neo:6 for optimal processing when a nonencoded, 2-channel stereo program is being played.
Theater The Theater mode creates a sound field that resembles the acoustic feeling of a standard live performance theater.
Small Concert The two Hall modes create sound fields that resemble a small- (Small Theater) or medium-sized (Medium Theater) concert hall.
Medium Concert
Dolby Virtual Speaker Dolby Virtual Speaker uses advanced technology to simulate the sonic signature of a speaker location, even when there is no speaker
Reference Wide physically present in that location. The Reference (“REF”) mode activates any missing speakers to simulate a 5.1 presentation with
accurate localization. The Wide mode virtualizes the locations of the front-channel speakers to create a wider image and a more
enveloping sound field. It is available, no matter how many speakers are present.
5-Channel Stereo These modes take advantage of multiple speakers to place a stereo signal at both the front and back of a room. They place the
7-Channel Stereo same signal at the front-left and surround-left, and front-right and surround-right speakers. The center channel is fed a summed
mono mix of the in-phase material of the left and right channels.
Surround Off This mode turns off all surround processing and presents the pure left- and right-channel presentation of 2-channel stereo
(Stereo) programs. When Surround Off is selected, the unit is in a “bypass” mode with no bass management. When Surround Off+DSP
is selected, the signal is digitized and bass management settings are applied.
Dolby Headphone Dolby Headphone enables ordinary stereo headphones to portray the sound of a five-speaker surround-playback system. The DH1
DH1 mode creates a headphone presentation that resembles a small, well-damped room and is appropriate for use with both movies and
DH2 music-only recordings. The DH2 mode creates a more acoustically live room that is particularly suited to music listening. The DH3
DH3 mode creates a larger room, more like a DH3 concert hall or movie theater. The BP (Bypass) mode turns off all surround processing
BP to the headphone jack.
For additional information on the specifics of surround modes and processing, information on Dolby modes may be found at www.dolby.com/Consumer/Technologies.
Information on DTS modes is available at www.dtsonline.com/home&car/overview.php.
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