
4.4 The Play View 51
Error knob adds a random error to the pitch of each note played; as it is turned clockwise, the error
increases. This makes all the notes play slightly out of tune.
Note that the sustain pedal (MIDI controller number 64) is always active on the Key module.
4.4.3 Unison
The unison mode allows one to stack voices, in other words, play two or four
voices for each note played on the keyboard. This mode creates the impression
that several instruments are playing the same note together, adding depth to the
sound.
Each voice can be slightly detuned relatively to the others by using the De-
tune knob. Turning this knob clockwise increases the amplitude of the error.
Furthermore, voices can be desynchronized by adding a small time lag between their triggering
with the Delay knob. There is no delay when the knob is in its leftmost position and it increases
(units in ms) as it is turned clockwise.
4.4.4 The Glide Module
The Glide module is used to make the pitch slide between notes rather than chang-
ing immediately from note to note. The Time knob sets the amount of time necessary for
the pitch to slide over one octave. The Mode drop-down menu enables one to choose be-
tween the Constant or Proportional mode. When in Constant mode, the time necessary
for the pitch to slide from one note to another is always the same regardless of the inter-
val between the notes. When set to proportional, the slide time becomes proportional to
the width of the interval between the two notes.
Clicking on the Legato button switches the module into legato mode and the sliding between
two notes then only occurs if the second note is played before the first one is released. When a
note is played staccato, or in other words if a key is released before the next one is depressed, there
is no glide effect. Note that even though the glide effect is available when the Key module is in
polyphonic mode, it is mostly dedicated to monophonic playing. In polyphonic mode, the sames
rules apply to individual voices and the overall result is less predictable.
4.4.5 The Vibrato Module
The vibrato effect is equivalent to a periodic low frequency pitch modulation. This effect is gener-
ally obtained by using an LFO to modulate the pitch signal of an oscillator. In String Studio VS, a
dedicated module is provided for this effect. The vibrato module is hard wired and affects the pitch
of both oscillators.
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