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54 Aftertouch
Sequential
To choose a modulation destination for the Mod wheel:
1. In the
lfo
section, choose a modulation destination as well as a
shape
and
frequency
for the LFO. (See “Low Frequency Oscillator” on page
2. To apply modulation only when using the Mod wheel, set the
initial
amt
knob to zero. (Turing this knob up will apply LFO modulation
continuously — not just when the Mod wheel is used.)
Many programs use the Mod wheel to add vibrato. In this case, Freq 1 and
Freq 2 are enabled as modulation destinations in the
low
-
frequency
oscillator
section. This adds vibrato when you push the mod wheel forward. Set the
initial
amt
knob to zero to apply vibrato only when using the Mod wheel.
Aftertouch
Aftertouch is a performance feature that allows you to add modulation to
a sound by applying additional pressure to a key after the key is already
down. The greater the pressure applied, the more modulation is applied.
The Trigon-6 provides
monophonic
(or “channel”) aftertouch, which
means that applying pressure to any key within a chord will apply modu-
lation to
all
notes currently held.
The Aftertouch section lets you choose the amount of modulation
applied using aftertouch and which parameters are modulated (oscilla-
tor frequency, filter cutoff, etc.). You can set either a positive or negative
amount.
For example, if you select the Low-Pass Filter as destination (
filter
),
set a
positive
amount of aftertouch, then press the keys harder, the filter
cutoff frequency will increase, making the filter open wider and the
sound become brighter.
Conversely, if you select the Low-Pass Filter as destination (
filter
), set a
negative
amount of aftertouch, then press the keys harder, the filter cutoff
frequency will be lowered, making the filter close more and the sound
become more muted.