8
OPERATIONOPERATION
PITCH MOD
PULSE WIDTH
DETUNE
OSCILLATOR MENU
(PWM)
This control has two functions determined by the [SHIFT] button.
When the [SHIFT] function is (SHIFT LED Off) this control sets the amount of pitch modulation to
the selected oscillator. At the 12 o’clock position there will be no pitch modulation applied. As the knob is moved in
an anti-clockwise direction the pitch modulation will become negative, first falling then rising. At the fully anti-
clockwise position the modulation will be at its maximum negative depth. As the knob is moved in a clockwise
direction from the centre position, the pitch modulation will become positive, first rising then falling. At the fully
clockwise position the modulation will be at its maximum positive depth. See [OSCILLATOR] menu section below
for further details on the pitch modulation source.
When the [SHIFT] function is selected (SHIFT LED Flashing) this control sets the amount of pulse width
modulation or PWM for the selected oscillator when its [WAVEFORM] is set to SQUARE ( ). The PWM
SOURCE can be set to LFO1, LFO2, ENV1 or ENV2 (see [OSCILLATOR] menu) with negative and positive
modulations available. At the 12 o’clock position there will be no PWM. As the knob is moved in an anti-clockwise
direction the variation in the pulse width will become more and more pronounced in a negative manner.Asthe
knob is moved in a clockwise direction the variation in the pulse width will become more and more pronounced in a
positive manner.
This control sets the actual width of the pulse. At the fully anti-clockwise position the fundamental will be at its
minimum producing an extremely thin sound. As the knob is moved in a clockwise direction the pulse width gets
wider, with progressively less high harmonics being added giving the sound a fuller timbre. At the fully clockwise
position the minimum and maximum values of the pulse width will be equal.
This control sets the fine tuning for each oscillator. At the 12 o’clock position the oscillators tuning will be
unaffected. As the knob is moved in an anti-clockwise direction the oscillators tuning will become more ‘Flat’, with a
total negative detune of - 2 semitones available at the fully anti-clockwise position. As the knob is moved in a
clockwise direction the oscillators tuning will become more ‘Sharp’, with a total positive detune of + 2 semitones
available at the fully clockwise position. Small variations in the oscillators relative tuning will fatten up a sound
giving it a rich texture. Larger amounts of detuning create a more extreme effect.
This section contains the remaining functions for the oscillators. To access these settings, press the MENU button
labelled [OSCILLATORS], as shown in the following example:
The indicator in the [OSCILLATOR] button will light and the main display will now alternate between the first
function and its current value, as shown below:
There are 4 functions in the oscillator menu with multiple settings as detailed in the following paragraphs.
This function allows you to derive the selected oscillator’s PITCH modulation from
one of four different sources. The selections are:
NOT selected ,
,
1. Pitch Modulation Source:
DarkStar Synthesizer
MENU
DOWN
MENU
VALUE
VALUE
MENU
UP
OSCILLATORSEDIT MODULATIONMIDILFOOUTPUTFILTER PORTA/TRIGGERPART
PARAMETER
VALUE
PARAMETER
VALUE
First selection =
Envelope 1
Function =
Pitch Modulation
source
BANK BANKPROG PROG
Display alternates
between
