Setting Modulation Amplitude - Alesis Wedge Reference Manual

Chapter 6 – MIDI Applications

Setting Modulation Amplitude

Once you have selected which MIDI messages are to be designated as Modulators X
and Y, you may then indicate their strength (or how much control they will have
over the effect parameters) and in which direction (positive or negative). The
amplitude range for both Modulators is -99 to +99. If you chose an amplitude of +99,
the Modulator will have full positive control over the parameter it is modulating.
But what does this mean to you? Let's take a look at some examples.
Let's say you want your keyboard's modulation wheel (controller #1) to control
how much reverb is heard. Since Mod Y is wired to the Wet/Dry Mix, you would
first assign Mod Y to be . Next, you set the amplitude for how much of the Mix
001
parameter's range you wish to be able to control from the mod wheel. For full
control, set the AmpX to . At this point you may not hear any effect. This is
99
probably because the effect's Mix parameter is set to 100%; the mod wheel is adding
to the parameter's value, but it has nowhere to go. If you bring the Mix parameter
all the way down to 0%, the mod wheel will have total control (move the mod wheel
all the way up and down to move the Mix parameter from dry only to wet only).
If you are using an effect whose modulated parameters are of the either/or kind
(like the Lezlie's Speed parameter; it is either slow or fast), the Modulator will have
no effect if the parameter is set to its "second" setting and the Modulator's
amplitude is set to a positive value. Once again, this parameter is already at its
maximum setting and cannot go any further. Likewise, you will not hear any effect
if the parameter is at its first or minimum setting, and the Modulator's amplitude is
set to a negative value.
Here's another example. Let's say an effect parameter (which is controlled by
Modu-lator X) is set to 75% of its maximum setting. If Modulator X has an
amplitude of 100% and the controller designated as Modulator X is at 100%, the
effect parameter will be at its maximum setting. If Modulator X's amplitude is 50%,
the parameter will be halfway between its programmed setting of 75% and its
maximum setting of 100%. If, on the other hand, Modulator X's amplitude is -99, the
parameter will be at its minimum or 0% setting.
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