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12
En
Creating sounds and categories/
parameters
This chapter explains the synthesis categories and parameters included in the program for creating sounds.
For details for how to change the categories, parameters and parameter values described here, see “Operation” (page 9).
OSCILLATOR category
The oscillator categories ([OSCILLATOR 1], [OSCILLATOR 2] and
[OSCILLATORS]) generate waveforms with various harmonic
configurations that form the basis of the sounds of this unit.
The unit has the two oscillators (Oscillator 1, Oscillator 2) and in
addition, a sub-oscillator of Oscillator 1 and an independent noise
generator.
Each of the two oscillators is capable of generating triangle, sawtooth,
and variable-width pulse waves. You can also continuously change these
three types of waveforms using the [Shape] parameter.
OSCILLATOR parameters
[OSCILLATOR 1], [OSCILLATOR 2] and [OSCILLATORS] are displayed
as categories in the display.
The following are the parameters displayed under one or two of the
categories.
Frequency
(Both the [OSCILLATOR 1] and [OSCILLATOR 2] categories have this
parameter.)
The [Frequency] parameter adjusts the basic pitch of the oscillator over
a range of five octaves.
! If you use the [OCTAVE UP] and [OCTAVE DOWN] buttons, the
range is nine octaves total.
Shape
(Both the [OSCILLATOR 1] and [OSCILLATOR 2] categories have this
parameter.)
The [Shape] parameter adjusts the waveform generated by the oscillator.
The waveform can change from triangular wave, sawtooth wave and
pulse wave continuously.
The three waveforms appear in the display as follows.
! Triangular wave: [Tri]
! Sawtooth Wave: [Saw]
! Pulse wave: [Pulse]
Pulse Width
(Both the [OSCILLATOR 1] and [OSCILLATOR 2] categories have this
parameter.)
The [Pulse Width] parameter adjusts the pulse width of the pulse wave.
! When [Pulse Width] is set to [127], the pulse wave becomes a
square wave (pulse width: 50%).
! When [Pulse Width] is set to [0] or [255], the duty ratio of the pulse
wave becomes 0% (pulse width: 0%), so the sound is not output.
Duty cycle (100%) Duty cycle (100%) Duty cycle (100%)
Set value: large
Set value: small
Square wave
Sync
(For [OSCILLATOR 1] category)
The [Sync] parameter sets the oscillator hard sync to [On]/[Off].
When the oscillator hard sync is set to [On], it forces Oscillator 1
to restart its cycle every time Oscillator 2 starts its cycle. This adds
harmonic overtones to the Oscillator 1 frequency, making a complex
waveform.
Oscillator 1
Oscillator1 synced to
Oscillator 2
Oscillator 2
Fine
(For [OSCILLATOR 2] category)
Fine tunes the pitch of Oscillator 2 up or down a quartertone. Slightly
detuning the pitches of Oscillator 1 and Oscillator 2 creates a thicker
sound.
Key Follow
(For [OSCILLATOR 2] category)
Set [Key Follow] to [On]/[Off].
When [Key Follow] is [On], the pitch of Oscillator 2 is controlled by the
keyboard.
! When using Oscillator 2 as an LFO (Low Frequency Oscillator)
source, it will continue to transmit at the frequency set in
[Frequency] by setting [Key Follow] to [Off].
! Even if [Key Follow] is set to [Off], modulations from other
modulation sources are enabled.
Low Freq
(For [OSCILLATOR 2] category)
When [Low Freq] is set to [On], Oscillator 2 can be used as an LFO.
Slop
(For [OSCILLATORS] category)
This parameter affects both Oscillator 1 and Oscillator 2.
Slop adds randomized detuning to both oscillators, giving the unit the
kind of slight tuning instability and “warmth” found on vintage analog
synthesizers.
! Small amounts of Slop will create a subtle vintage analog character.
Larger amounts will produce a more dramatically out-of-tune effect.
MIXER category
In the [MIXER] category, you can set the levels of the individual
oscillators.
To synthesize the waveform of each oscillator, you need to raise the
volume level of each parameter in the [MIXER] category.
! If the low-pass filter’s [RESONANCE] parameter is set high enough
to cause self-oscillation, the filter will produce a sine wave, even if all
the oscillators’ volumes are set to [0].
MIXER parameters
Osc1 Level
Sets the volume of Oscillator 1.
Osc2 Level
Sets the volume of Oscillator 2.
Sub Level
Sets the volume of the sub oscillator of Oscillator 1.
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