Orthogonal Devices ER-102 User Manual page 15

When altering the slope, the size of the encoder increments depends on the slope's
magnitude:
Min Max
-99 -10
-9.9
-0.99
1.0
10
This logarithmic scheme allows for fine control when dialing in small gains while
also making very large gains easy to reach.
High vs Low transforms
The GATE inputs on the 3 modulation channels (X, Y, and Z) control which of each
group's (non-destructive) transforms are active. Each group has 6 of these trans-
forms because there are high and low transforms for each of the 3 channels which
comes out to 6 transforms per group. For example, a high voltage (>1.5V) on the
X channel GATE input will activate all of the X-high transforms, while a low voltage
(<1.5V) will activate all of the X-low transforms and so on.
TIP: If there is no plug in the GATE input jack then the low transforms are active by
default.
The usual interface for transforms is used to edit a group's high/low transforms. See
the section on Math Transforms. However, there is no need to apply the high/low
transforms because they are applied automatically everytime a step plays.
The high/low transforms have many uses:
• Provide programmable offsets for the CV modulation bus.
• Mute steps in a group by having the high transform multiply the GATE parame-
ter by zero.
• Skip steps in a group by having the high transform multiply the DURATION
parameter by zero.
• Momentarily double or half the step durations of a group for rhythmic effect.
This works especially well when you partition your sequence into two groups
each with opposite transforms (i.e. one group doubles in duration while the
other group halves the duration).
Increment
1
-1.0 0.1
0.99 0.01
9.9 0.1
99 1
This example diagram shows the X channel's HIGH transform for the steps in group
3. In this case, assuming the other operations are set to their default values, the
transform will decrease CV-A by an octave (subtract 12), leave CV-B untouched,
double the DURATION and divide the GATE length by 4.
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