Buchla 200e series, Руководство пользователя

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Morphing
A variety of means for progressing through the filter stages is provided. The
control voltage input can serve two functions:
1) A voltage applied to the morph input will select a filter stage, with the
selected number of stages spread over the 10 volt control range. This
mode is enabled with the entry of “control voltage” in the bottom line of the
display. In this mode, pulses are disabled, and “control voltage” is
displayed for all stages.
2) If “control voltage” is not selected, then the applied voltage multiplies the
stage time from 1 to 10. The voltage will affect all the stage times.
To automatically progress through the defined filter stages, use the edit select
switch to select a stage; then enter a time value for that stage; successive
stages will be advanced according to the times associated with each stage,
which can range from .01 to 10 seconds.
This assumes that “Free” is entered in the center field in the bottom line.
“Cycl” is similar, but loops the filter to the first stage. “Enbl” will permit the
stage to be advanced only if an applied pulse is high, extending the time until
the pulse goes high. “Sust” is the opposite, permitting advancement only with
a low pulse, and inhibiting it when high. A “Puls” or a “Stop” inserted here will
unconditionally stop the morphing at the specified stage, waiting for a pulse to
advance immediately to the next stage (“Puls”) or to the first stage (“Stop”).
If the field identifier (a, b, f, or m) is capitalized, the filter will smoothly morph to
the new value of the field. If the identifier is lower case, the filter will jump to
the new value. Note that the fields are separate; a signal may jump in
frequency while its level is slowly changing. The time field determines the
stage time in either case.
To move the cursor between the identifiers, and the time field, press the data
wheel. A sustained press allows the LCD contrast to be adjusted. Press it
again to store the displayed value.
A solo switch, selecting one of the three nodes, proves convenient for editing,
and is available when monitoring the all output. An expand input allows ready
expansion of the filter; just plug in another 291e for an additional three nodes.
The 291e’s settings can be stored and retrieved with the model 225e or 206e
preset manager.