User Guide

Chapter 21 ES2 255
Muting Oscillators
By clicking on the green numbers to the right of the oscillators, you can mute and un-
mute them independently. This saves processor power.
Frequency Knobs
The Frequency knobs set the pitch in semitone steps over a range of ±3 octaves. As an
octave consists of 12 semitones, the ±12, 24, and 36 settings represent octaves. You can
click on these options to quickly set the corresponding octave.
The value display works as follows: the left numbers show the semitone (s) setting, the
right numbers show the cent (c, 1 cent = 1/100th semitone) setting. You can adjust
these two values independently. As an example: an oscillator with the value 12 s 30 c
sounds an octave (12 semitones) and 30 cents higher than an oscillator with the value 0
s 0 c.
Note: The fifth (seven semitones), and all settings that correspond with harmonics of
an oscillator set to 0 semitones (19, 28 semitones) result in harmonic sounds.
Wave
Each of the three oscillators features a rotary knob that allows you to select a
waveform. This is responsible for the basic harmonic content and tone color of a sound.
Oscillators 2 and 3 are almost identical to each other, but differ from Oscillator 1.
Oscillator 1 is capable of generating a sine wave, the frequency of which can be
modulated in the audio range, for true FM synthesis sounds. Oscillators 2 and 3 can be
synchronized to, or be ring-modulated with, Oscillator 1. They also feature rectangular
waves with freely definable fixed pulse widths plus pulse width modulation (PWM)
facilities. Via the Router, the rectangular and pulse waves of Oscillator 1 can be
modulated in width in conjunction with the synchronized and ring-modulated
rectangular waves of Oscillators 2 and 3.
Note: The Filter button disables the entire filter section. This makes listening to the
pure oscillator waveforms easier.
Oscillator 1 Waveforms
Oscillator 1 outputs standard waveforms—pulse, rectangular, sawtooth, and triangular
waves—or, alternately, any of the 155 available Digiwaves. It can also output a pure sine
wave.