●
PITCH BEAT (-63…63):
This is also a detuning control, but instead of detuning by a fraction of a semitone, it
detunes by a fixed number of Hz.
To illustrate this function let’s use the example of two oscillators pitched in unison, but
slightly detuned in order to create a beating between them. The speed of this beating
is known as the “beat frequency”. If you were to play a middle C and adjust the FINE
slider to achieve a beat frequency of 2Hz, then playing the C an octave above would
double the beat frequency to 4Hz; likewise, playing C an octave below would halve
the beat frequency to 1Hz. If you instead detune using the BEAT slider, then the beat
frequency will remain constant, irrespective of the pitch being played.
●
SAW VCA DECAY TIME (0...127):
The amplitude of the saw waveform can be given its own individual decay envelope
which will be triggered each time a new note is played. The decay time is set here; it
determines the time it takes the volume of the saw waveform to change from the
level set by SAW DECAY to the level set by AMPLITUDE SAW. The volume can
increase or decrease depending on whether SAW DECAY is given a positive or a
negative value. See below for further details.
●
SAW VCA SAW DECAY (-63...63):
This parameter determines the initial amplitude of the decaying portion of the saw
waveform and whether the volume increases or decreases from that point on.
A setting of 63 causes the decay envelope to begin from the saw waveform’s
maximum amplitude
(i.e. the same volume you get by setting 127 in AMPLITUDE
SAW). The amplitude will thus
fall
to the level set by AMPLITUDE SAW (unless the
latter is set to 127, in which case there will be no change in volume).
A setting of -63 causes the decay envelope to begin from the saw waveform’s
minimum amplitude
(silence) and thus the amplitude will
rise
to the level set by
AMPLITUDE SAW. (Obviously if the latter is set to 0, you won’t hear anything at all.)
Any SAW DECAY setting
between
-63 and 63 will produce an initial amplitude which
varies according to the value set by AMPLITUDE SAW. The various combinations of
settings of these two sliders allow a wide range of possibilities.
●
PULSE WIDTH OFFSET (0…127):
5
The pulse width of the square waveform can be adjusted between symmetrical (50%
duty cycle) when set at 0 and narrow pulse (10% duty cycle) when set at 127. (See
the diagram in the
section for details.)
5
In the case of VCO3 and VCO4, this slider has some shared functionality as it also controls the
pulse width of LFO3 and LFO4 which are two of the
Special Flexi-only Modulation Sources
. See
that section for further details.
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