Cambridge SoundWorks DTT3500 Digital User Manual page 18

MUSIC: Creates a 5.1 speaker
soundfield appropriate for music
from any analog sound source.
FOURPOINT/5.1 DIN: Use
this mode for DVD games
having Dolby Digital
soundtracks with EAX or
Microsoft DirectSound3D for
real-time positioning of sound
effects. Typically a Dolby Digital
5.1-channel + analog signal
source.
If a signal source is connected to
the Analog Line In minijacks, 4.1-
channel output is produced.
If the signal source is connected to
the Digital DIN input, up to 5.1-
channel output is produced.
Typically when using a Sound
Blaster Live! 5.1 sound card or the
DIN bracket bundled with Live!
Drive IR. For more details, see
"Signal Source Connection
Diagram" on page 10.
The DIN LED blinks if no signal
or an invalid audio signal like an
AC-3 signal is detected. In the case
of an AC-3 signal, select Digital
DIN at the Dolby Digital/PCM
Audio input selection.
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STEREO: Use this mode when you
want to hear just stereo effects or the
stereo Dolby Digital downmix of a
DVD. The Dolby Surround Pro
Logic processor is disabled in this
mode.
5. DOLBY DIGITAL /PCM
AUDIO: Use this button to
select the signal source input.
Repeated presses of the button
cycles between Optical, Coaxial,
Digital DIN and Off.
MULTI-CHANNEL:
6. Use
this button to select the signal
source input. Repeated presses of
the button cycle between Line In,
Digital DIN and Off.
AUDIO MODE:
7. Use this
button to play just the left or
right channels of a stereo digital
signal (PCM from an audio CD,
a Video CD or a stereo signal
from a DVD). Use this when, for
example, a Video CD has
different languages on the left
and right channels.
Repeated presses of the button
select which channel is fed to both
the Left and Right front speakers.
LL-Left channel program is directed
to both Left and Right front
speakers.
RR-Right channel program is
directed to both Left and Right front
speakers. See "Audio Mode
Selection" on page 20 for further
information about this feature.
8. DOLBY PRO LOGIC: This
button cycles from Dolby Pro
Logic processing of the digital
input to Dolby Pro Logic
processing of the analog input,
then to no Pro Logic processing.
9. DOLBY DIGITAL: This light
turns on whenever a Dolby
Digital signal is detected at the
SPDIF input of the DTT3500
Digital. For Dolby Digital 5.1
sound reproduction, make sure
only this light is illuminated.
MUTE:
10. Mutes all output from
the DTT3500 Digital. Press the
button once to mute. The blue
LED on the Master volume knob
blinks and all functions are
operable except speaker test.
Press a second time to restore
audio output. After being muted
for more than thirty minutes, the
Decoder Amplifier goes to
standby mode and the Standby
LED lights up.
TEST:
11. Press this button to start
the "test sound" generator. Use
this test sound to position all the
speakers and to balance their
relative output.
The test sound moves in sequence
from the left Satellite, the Center
Speaker, the right Satellite, then to
the rear right Satellite, rear left
Satellite and the subwoofer. All
indicator lights will blink on and off
while the test sound generator is in
operation.
The test sound will operate for
three complete cycles and then stop.
You can terminate the sound at any
point by pressing the Test button
again.
First use the test sound to verify
that each speaker is operating.
Then make sure the speakers are
positioned so that the test sound can
be clearly heard.
Finally, adjust the front panel level
controls for the Center, Subwoofer
and rear Satellites. Adjust each
control so its speaker achieves a