Sound Parameters
37
M Manual
Env Amt (VCF Envelope Amount)
Determines the amount of influence the VCF envelope has
on the cutoff frequency. For positive settings, the filter
cutoff frequency is increased by the modulation of the
envelope, for negative settings, the cutoff frequency is
decreased. Use this parameter to change the timbre of the
sound over time. Sounds with a hard attack usually have a
positive envelope amount that makes the start phase
bright and then closes the filter to get a darker sustain
phase. On the other side string sounds usually use a nega-
tive envelope amount that gives a slow and dark attack
before the cutoff rises in the sustain phase.
Velocity
Determines the amount of influence the VCF envelope has
on the cutoff frequency, based on key velocity. This para-
meter works similarly to the
Env Amt
parameter with the
difference that its strengh is velocity based. Use this fea-
ture to give a more expressive character to the sound.
When you hit the keys smoothly, only few modulation is
applied. When you hit them harder, the modulation
amount also gets stronger.
Keytrack
Determines how much the cutoff frequency depends on
the MIDI note number. The reference note for Keytrack is
C3, note number 60. For positive settings, the cutoff fre-
quency rises on notes above the reference note, for negati-
ve settings the cutoff frequency falls up to higher notes and
vice versa. A setting of
+0
corresponds to a 1:1 scale, so e.g.
when an octave is played on the keyboard the cutoff fre-
quency changes for the same amount. If you want to play
the filter in a tempered scale, e.g. for a solo sound with self-
oscillation, set the value to +0%. On most bass sounds
lower settings are optimal to keep the sound smooth at
higher notes.
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