Filter 1
Filter 1 gives you the most flexibility by offering low pass, high pass and band pass types. In
addition, there is an sine waveshaping filter with an 12dB low pass following. You can
select the slope between 12dB and 24dB per octave for the low pass and band pass.
Further types might be added in the future.
Filter 1 / 1
Filter 1 / 2
Cutoff
0…127
Determines the cutoff frequency for the low pass and high pass filter types and the mid
frequency for the band pass type. When a low pass is selected via the
Type
parameter, all
frequencies above the cutoff frequency are damped. When high pass is selected, all
frequencies below the cutoff frequency are damped. In a band pass only frequencies near
the cutoff setting will be passed through. You can bring more movement into the sound by
modulating the cutoff frequency via the LFOs, the envelopes or the
Keytrack
parameter. At
a value of
64 and a
Resonance
value of
114, the filter oscillates with 440Hz, which is
equal to A3. Tuning is scaled in semitone steps. When
Keytrack
is set to
+100%, the filter
can be played in a tempered scale.
Resonance
0…127
Filter resonance parameter. Determines the amplification of the frequencies around the
cutoff point. Use lower values in the range
0…80 to give more brilliance to the sound. At
higher values of
80…113 the sound gets the typical filter character with a strong boost
around the cutoff frequency and a loss in the other range. When the setting is raised to
values above
113, the filter starts to self-oscillate, generating a pure sine wave. This feature
can be used to create solo sounds like the traditional "moog lead" or analog-style effects
and percussion like electronic toms, kicks, zaps etc.
Type
see Table
Selects the filter type. Further information on the different filter types is given at the end of
this chapter.
Keytrack
-200%…+197%
Determines how much the cutoff frequency depends on the MIDI note number. The
reference note for Keytrack is E3, note number 64. For positive settings, the cutoff frequency
rises on notes above the reference note, for negative settings the cutoff frequency falls up to
higher notes and vice versa. A setting of
+100% corresponds to a 1:1 scale, so e.g. when
an octave is played on the keyboard the cutoff frequency 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
+100%. On most bass sounds lower settings in the range +60…+75% are
optimal to keep the sound smooth at higher notes.
Cutoff Env. Amount|Env.Velocity Amount
69
|
-23
Cutoff
|Resonance|
Type
|Keytrack
047
|
012
| 24dB LP |
+066%
52
User’s Manual MicroWave II • MicroWave XT • XTk
