Lexicon PCM 80 - Manual (Page 27)

2-9
Basic Operation
1.2 Tempo Mode
The PCM 80 gives you an exciting new approach to working with delay times and
modulation parameters. Now you can set these parameters in beats, allowing
you to control your effects in a completely musical way. Each PCM 80 effect has
its own Tempo parameters, with tempo settings stored as an integral part of the
effect. These include: Tempo Rate, Tempo Beat, Tempo Source (internal or
MIDI), Tap Duration, and Tap Average. The Global setting here allows you to
override individual Tempo Rate settings with a global value which can then be
changed on the fly.
When shipped, the PCM 80 has the Tempo Mode set to Pgm, with each effect
driven by its own stored tempo rate. To change to a global Tempo Rate, use
ADJUST to select Global, press Load/
✱ to display the current tempo in BPM
(beats per minute), then use ADJUST to assign a global tempo value of 40-
400BPM.
Whether Tempo Mode is set to Global or Pgm, you can set a new tempo rate
by pressing the front panel Tap button twice. Alternatively, you can choose to
have tempo set automatically from incoming MIDI clock. The rate you tap, or the
MIDI tempo, will be displayed here.
For more information about working with the tempo parameters, see Tempo
Mode later in this chapter.
1.3 Bypass Mode/Bypass Src
This control alows you to determine the behavior of the PCM 80 when the front
panel Bypass button is pressed. You can also assign an external controller to
perform identically to the front panel button. When the Bypass button is pressed,
the LED will light, and a message indicating bypass type will be displayed.
Pressing Bypass again will turn bypass off.
The choices available via ADJUST are:
AllMute: Mutes both the input and the output signal, giving com-
plete silence.
InputMute: Mutes the input to the PCM 80, allowing the tail of the
effect to ring out. (This is the default setting.)
OutputMute: Mutes the output. Audio signals are still being fed to the
PCM 80, so processed audio returns immediately when
Bypass is turned off.
Bypass: Completely bypasses the PCM 80, passing unproc-
essed audio directly through to the outputs.
To assign an external controller to perform the selected bypass function, press
Load/
✱ to display Bypass Src. Use ADJUST to select a footswitch or any MIDI
controller (or Off). Once a source is selected, it will perform the same function
assigned to the front panel Bypass button.
1.4 Pgm Bypass
This control allows you to determine the behavior of the PCM 80 when a new
effect is loaded. The choices available are: AllMute or Bypass.