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Semitone
Determines the pitch of the oscillator in semitone steps. The standard setting for this
parameter is 0 , but there are cases where different values are required: Most organ sounds
include a quint, therefore one oscillator's semitone parameter must be set to +7 . There are
also many lead sounds with an interval, e.g. a quart (+5 semitones). When making ring
modulated sounds, try to use +11 for the setting. The semitone setting also becomes very
important when oscillator synchronisation is enabled. Then, Oscillator 1 determines the
pitch of the generated sound, Oscillator 2 determines the colour. Try to use a random
semitone setting while Octave is at +2 .
Detune
Fine-tunes the oscillator in increments of 128ths of a semitone. The audible result of
detuning oscillators is a flanging. Use a positive setting for one oscillator and an equivalent
negative setting for the other. A low value of ±1 results in a slow and soft flange effect. Mid-
ranged settings of ±5 are optimal for pads and other fat sounding programs. High values of
±12 or above will give a strong detune that can be used for accordeons or effect sounds.
Keytrack
Determines how much the pitch of the oscillator depends on the MIDI note number. The
reference note for Keytrack is E3, note number 64. For positive settings, the oscillator pitch
rises on notes above the reference note, for negative settings the oscillator pitch falls up to
higher notes and vice versa. A setting of +100% correspondes to a 1:1 scale, e.g. when an
octave is played on the keyboard the pitch changes for the same amount. Other settings
than +100% make sense especially when using ring modulation or oscillator
synchronisation. Try to use values in the range 0...+75% or even negative settings for one
oscillator while leaving the second at +100% Keytrack.
Pitchbend Range
Determines the intensity of the pitchbend via MIDI Pitchbend messages in semitones.
• If harmonic is selected, the pitchbend is performed in steps of the harmonic and
the subharmonic scale. Please refer to the description for Oscillator 1 to get further
information.
• If global is selected, the setting in the global parameter BendRange is used.
Sync
Enables or disables oscillator synchronisation. When enabled, oscillator 2 acts as a slave
that is controlled by oscillator 1, the master. Each time oscillator 1 starts a new period, it
sends a trigger signal to oscillator 2, forcing it to restart the wave signal, too. As a result,
interesting sound effects may be generated, especially when both oscillators are operating
at different pitch settings. Using additional pitch modulation by envelopes, LFOs or
pitchbend will bring further movement into sync sounds. The following diagram illustrates
the principle of oscillator synchronisation in a simplified way:
User's Manual MicroWave II • MicroWave XT • XTk
-12...+12
-64...+63
-100%...+200%
0...120 / harmonic / global
off / on
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