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Chapter 2 ES1 21
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Modulation parameters: Located to the left and middle in the dark green/gray area, the
modulation sources, modulation router, modulation envelope, and amplitude envelope
are used to modulate the sound in a number of ways. See ES1 modulation parameters
overview on page 29.
ES1 oscillator parameters
ES1 oscillator parameters overview
ES1 includes a primary oscillator and a sub-oscillator. The primary oscillator generates a
waveform that is sent to other parts of the synthesizer for processing or manipulation.
The sub-oscillator generates a secondary waveform one or two octaves below that of the
primary oscillator.
Oscillator parameters
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Wave knob: Rotate to select the waveform of the primary oscillator, which is responsible for the
basic color of the tone. See ES1 oscillator waveforms on page 22.
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Mix slider: Drag to set the level relationship between the primary and sub-oscillator signals.
(When the sub-oscillator is switched o, its output is completely removed from the signal
path.)
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Sub knob: Rotate to generate square, pulse, and white-noise waveforms with the sub-oscillator.
The sub-oscillator also allows you to route a side-chain signal through the ES1 synthesizer
engine. See Use the ES1 sub-oscillator on page 22.
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2’, 4’, 8’, 16’, and 32’ buttons: Click to transpose the pitch of the oscillators up or down by octaves.
The lowest setting is 32 feet and the highest is 2 feet. The use of the term feet to determine
octaves comes from the measurements of organ pipe lengths. The longer and wider the pipe,
the deeper the tone.
Modulate ES1 pulse width
m Rotate the Wave knob to a position between the square wave and pulse wave symbols.
The pulse width can also be automatically modulated in the modulation section (see Use the ES1
router on page 29). Modulating the pulse width with a slowly cycling LFO, for example, allows
periodically mutating, fat bass sounds.