User Manual

Sound Parameter
Blofeld User´s Manual 42
✻ If you want to bias FM over the keyboard so that
higher notes aren’t modulated as strongly as lower
notes, use the Modulation Matrix and apply
Keytrack to the respective oscillator FM with a
negative amount.
Keytrack -200%...+196%
Determines how much the pitch of the selected 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 by the same
amount and vice versa. A setting of +100% corresponds
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, FM or oscillator synchronization. Try to
use values in the range 0%…+75% or even negative
settings for one oscillator while leaving the second at
+100% Keytrack.
Bend Range -24...+24
Determines the intensity of the pitchbend via MIDI
Pitchbend messages in semitones for the selected
oscillator.
Sync To O3 (only for Osc 2) off / on
Enables or disables oscillator synchronization. When
enabled, Oscillator 2 acts as a slave that is controlled by
Oscillator 3, the master. Each time Oscillator 3 starts a
new cycle, it sends a trigger signal to Oscillator 2, forcing
it to restart its waveform cycle, 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, LFO, or Pitch
bend will lend further movement to sync sounds. The
following picture illustrates the principle of oscillator
synchronization in a simplified way:
✻ Use Sync for Lead or Solo sounds. Set Oscillator 2
to play one octave and 7 semitones higher, apply an
envelope to its pitch with positive amount and you
get a screaming sync sound.
!"#$%&$'#(()*&+ $,-'./%*&%*"#$%&$'#(()*&+ +.$0(*$%#-%*"#$%1)2.
-.1%','(.%&3%4)$*.+%&$'#(()*&+