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■ STEREO & STEREO DOWN-MIX MODE
If this button is selected and the supplied bit-
stream is more than 2 channels, the decoder will
automatically implement a stereo down-mix.
Otherwise, analog or digital two channel signals
are passed as conventional stereo.
NOTE: Down-mix is a software based auto-
matic mixing function available within the
SP3. This process exists because whenever the
number of active decoder outputs or loud-
speakers selected in setup is less than the
number of channels in the Dolby Digital pro-
gram, some channel combining will be neces-
sary to present the program on the available
number of channels/loudspeakers.
A s a part of any program's production, its
producers can set and adjust the type and
ratios allowed for down-mixing somewhat
to ensure optimum results without compro-
mising the full Multichannel balance. This is
accomplished by including specific data with-
in the Dolby Digital bitstream which represents
different mixing coefficients for the centre and
surround channel signals.
T hese will be detected by the SP3 and used to
produce the down-mix if this mode is selected.
D: VOLUME CONTROL / ROTARY ENCODER
Continuous rotary optical encoder for determin-
ing volume level as well as an input for most vari-
able settings and other selections within both the
System and Source menus.
Note that when the volume level is being adjusted
the display changes to large numerals showing the
level in decibels
E: HEADPHONE JACK
Stereo (3 conductor) 1/4" headphone jack. In 2
Channel Bypass mode the Left and Right analog
inputs appear, amplified, at the headphone jack.
When other sources are selected a stereo down-
mix is used.
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