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CD-ROMs and CDs with Dolby
Surround encoding will feature the
Dolby Surround logo at the beginning
of the program or on the packaging.
Process these programs by selecting
Analog In using the Dolby Pro Logic
button for input through Analog Line
In.
If using Digital DIN input, ensure
that the Digital DIN on the Dolby
Digital/PCM Audio input is selected.
Then select Digital In using the Dolby
Prologic button.
When Dolby Pro Logic is selected
CMSS is turned off. To turn on CMSS
again, turn off Dolby Pro Logic first.
Do not select a Pro Logic decoding
mode if the program material is not
encoded for Dolby Surround.
Excessive center channel output will
result, and most of the stereo effect
will be lost. Use CMSS “Movie” or
“Music” modes to upmix stereo
programs to a realistic 5.1-channel
sound field.
Creative Multi Speaker
Surround (CMSS)
CMSS is a 2-channel to 5.1-channel
sound processor similar in some
aspects to a Dolby Surround Pro Logic
processor.
The Music mode creates a
convincing 5.1-channel surround
soundfield with typical stereo
sources, whether they are Dolby
Surround-encoded or not. It works
well with Dolby Pro Logic, WAVE, AVI
and MIDI program material. In
essence, CMSS Music mode puts you
“on the stage” for the music’s
performance, surrounding you with
the performers.
In a similar manner, Movie mode
provides the sonic impression of
being front and center at a movie
screening. Dialog and all normally
centered sounds from a stereo
program are heard through the center
speaker. Use this mode whenever a
music program has sounds you want
to blend with on-screen action or
dialog.
Unlike Pro Logic decoding, CMSS
Music, Movie and FourPoint/5.1 DIN
modes are appropriate for use with
multi-coded sources such as DVD
games. In some game titles, the
movie sequences may be encoded in
Dolby Surround but the game
sequences may be in the WAV format.
CMSS Movie mode supports 5.1-
channel output for .WAV, .AVI, .MIDI
and other audio software formats.
Few, if any of these kinds of formats
are Dolby Surround encoded.
The FourPoint/5.1 DIN mode passes
the four discreet channel audio of 4-
channel games direct to each satellite
channel. It does not synthesize rear
channel output, so stereo signal in
this mode will play just through the
front two speakers and subwoofer.
The
STEREO
mode plays the Left
and Right Front speakers and the
subwoofer. It also lets you hear the
stereo downmix from any DVD.
The Dolby Pro Logic processor is
disabled in this mode.
Audio Mode Selection
The stereo soundtracks of some
movies on Video CDs (VCD format)
contain different languages. For
example, a 2-channel soundtrack may
contain Mandarin on the right
channel and English on the left
channel. The VCD program literature
should indicate the presence of dual-
language soundtracks. Similarly,
some movies in the DVD format will
contain dual-language soundtracks.
DTT3500 Digital
lets you select one
of these languages and play it
through both the Left and Right
speakers.
If there is no indication of which
channel is which, and you hear two
different language soundtracks
during stereo playback, select the
“LL” and “RR” settings until you find
the language soundtrack you want.
The Audio Mode selection feature
can only be used with the PCM digital
soundtrack of a Video CD or DVD with
a dual soundtrack, not a DVD
encoded with Dolby Digital 5.1 sound
or Dolby Surround-encoded material.
If you have an analog program with
separate left and right channels (the
analog output of a CD ROM, or the
analog stereo output of a “software”
Video CD, for instance), you will have
to use the balance control in your
PC’s audio software to mute the
undesired channel.