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Page 31© 2002/2003 bel canto design, Ltd. PRePro User’s Guide rev1103
The various listening modes affect signals from any input except the 7.1-channel analog input.
Not all listening modes are available for every type of input. For example, modes that generate
surround signals from stereo sources cannot be used with DTS or Dolby Digital signals that have
discrete digital surround channels, and decoding modes for such digital surround signals won’t
work with stereo signals. When you select modes, those not available for your currently selected
input simply won’t show up as options. If you switch to an input that your currently selected
mode won’t work with, the PRePro will automatically select an appropriate mode (usually, Stereo
for stereo sources and Dolby D or DTS for surround sources).
Listening Modes
Stereo: Plays all sources in stereo, through the front left and right channels. When surround
input signals are played in stereo mode, the contents of the surround, rear, and center channels
are reproduced in the stereo output signal.
Dolby Pro Logic II Movie: Optimized for movies and electronic games, this 5.1-channel
mode has more channel separation than Pro Logic, and two full-range surround channels instead
of a single, filtered channel. By feeding the two surround speakers slightly different signals, Pro
Logic II produces a more spacious, enveloping effect. Unlike the original Pro Logic, it is
designed for use with stereo analog or digital signals as well as for films and other two-channel
material with Dolby Surround encoding. Available only with two-channel sources.
Dolby Pro Logic II Music: Optimized for music listening, this mode is designed to produce
surround ambience from stereo sources such as CDs.
Dolby Digital EX: An enhancement of the original Dolby Digital 5.1-channel surround system,
it adds backof-the-room surround information to the information coming from the surround speak-
ers at the room’s sides. It can be used with a 6.1-channel speaker setup having one surround
back speaker, or with a 7.1- channel setup having two surround back speakers. If the program
includes an EX "flag" signal, the PRePro will select this mode automatically. The Dolby EX mode
can be selected manually for the many EX DVDs that lack the flag. A list of Surround EX films
can be found at www.dolby.com/movies/films_previous.html.
Dolby 2/0: Two channel stereo recordings using the Dolby Digital signal format. Processing
modes available are mostly the same as those for stereo CDs.
DTS-ES: An enhancement of the DTS 5.1-channel surround system which adds back-of-the-room
surround information. In DTS-ES Discrete soundtracks, this is carried on a discrete, or independ-
ent, channel. In DTS-ES Matrix soundtracks, it is encoded as a matrix that is carried by the left
and right surround channels. In Setup you can elect to play Surround-back information through
one (6.1-channel) or two (7.1-channel) surround-back speakers.
DTS Neo:6 Cinema: For 6.1-channel decoding of movies with surround-encoded, two-channel
soundtracks; adds a single rear channel (which can be fed to two surround back speakers); not
available in systems with no surround back speakers.
Listening Mode Definitions