About Minimum And Maximum Values; Parameter Adjustment With Foot Switches; Parameter Adjustment With Continuous Controllers - Boss GT-10 Workshop Manual

About Minimum and Maximum Values

On the ASSIGN screens, the "Min" (minimum) and "Max" (maximum) values
represent the range over which you can adjust the target parameter with the
source. How these values behave depends on whether you're using a foot
switch or a "continuous controller" (like an expression pedal) as the source
for controlling the target.

Parameter Adjustment with Foot Switches

When a foot switch is assigned as the control source, it toggles between the
minimum and maximum values you've set. For two-way parameters, such as
"on" and "off, " this is a no-brainer. Just set the minimum value to Off and the
max value to On (or vice versa), and you're good to go.
However, when a parameter is a numeric value (as is the case most of the
time), the foot switch will toggle between the numeric values that you've
set. For example, if you've targeted the drive parameter in a distortion effect
and you've selected a foot switch as the source, you can use it to toggle
between the two different drive values. Or, if you've targeted the rate in the
flanger effect, you can toggle between the two different rate values.
Each press of a foot switch that's assigned as the source toggles between
the minimum and maximum values assigned to the target.
Most of the time, you'll probably want a foot switch to hold a
parameter after it's pressed. To set this behavior, select "Toggle" on
the Src Mode line in an ASSIGN screen. If you want to execute the
assigned parameter change only while the foot switch is held down,
select "Moment" (momentary) instead.

Parameter Adjustment with Continuous Controllers

A "continuous controller" is a realtime controller that continuously varies a
parameter through the entire range between the minimum and maximum
target values. On the GT-10, any realtime controller that's not a foot switch—
expression pedals, MIDI CC messages, the internal and wave pedals, and
input level—is considered a continuous controller.
Let's say that you've targeted the delay level in a delay effect, and you've
selected the onboard expression pedal (EXP1) as the source. When you
operate the pedal, it will continuously vary the delay level between the
minimum and maximum values you've set. Or, if you've selected the wave
pedal as the source instead, the delay level will automatically vary between
the minimum and max values, with the speed of the value adjustment
determined by the rate that you've set.
Operating an expression pedal (or other continuous controller) that's assigned as the source
continuously varies the target parameter between the minimum and maximum values.
Continuous controllers aren't just for numeric parameter values; you
can also use them as the source when you wish to control two-way
parameters like on and off. In such cases, the parameter value will
toggle at the controller's midpoint.
In the case of numeric parameters, the maximum value doesn't have to
be greater than the minimum value. In practice, this means that you're
not limited to, say, moving the expression pedal forward to increase a
value, as you might in most cases; you can alternately move the pedal
forward to decrease a value instead, if you wish.
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