ROW 1 SYSTEM
1.0 Edit Mode
The PCM 91 has been designed with a "plug and play" feature
called Go mode. In this mode, the most useful parameters of each
effect are grouped together in a single row which is available
whenever you press Edit.
Each PCM 91 preset has a set of Go mode parameters which we've
selected for you. When shipped, the PCM 91 will power up in Go
mode, with the first preset (P0 0.0) loaded. Press Edit to display
the first available parameter in the Soft Row.
If you want access to the full parameter matrix for any effect,
including the Soft Row parameters, use ADJUST to select Pro
mode. Now, when Edit is pressed, you can select any parameter for
adjustment, and customize any effect with your own Soft Row
assignments. For more information about the Soft Row, see Editing
an Effect later in this chapter.
1.1 Mix Mode
Each PCM 91 effect has its own Mix parameter, with the Mix set-
ting stored as an integral part of the effect. Mix Mode allows you
to override these individual Mix settings and set a global Mix value
for all effects. This is useful when using a mixing console's controls
to set the amount of wet signal in a mix. In such a case, you can
use this control to set all PCM 91 effects to 100% wet.
2-8
Basic Operation
Lexicon
ROW 0 AUDIO (continued)
0.1 SCMS
Digital audio signals, in order to comply with copyright standards,
are encoded with control information which can limit the ability to
copy audio data. This control information is generally known as
SCMS (Serial Copy Management System). Under this system, you
can choose to have the audio material processed by the PCM 91
encoded to allow one of three levels of copy restriction. To make
your selection, use ADJUST to select No Copy, One Copy, or Multi
Copy.
0.2 Emphasis Bit
The Emphasis control allows you to explicitly set the emphasis
"flag" in the digital audio, or to pass along the incoming signal
without changing its emphasis coding. (The PCM 91 does not per-
form any emphasis or de-emphasis as part of its signal processing.)
The choices available with ADJUST are: Yes, No, and Pass Thru.
0.3 Output Level
This control allows you to select the maximum output level at the
PCM 91's analog outputs. Use ADJUST to select +4 dBu, or –10
dBu.
Note:
Exercise care when switching this control, as a 14dB
level change instantly occurs when going from
-10dBu to +4dBu.
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