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Table Of Contents
Chapter 20 ES2 215
Tip: If you are new to synthesizers, experiment with a simple saw wave, using Oscillator
1, and Filter 2 (lowpass filter, Filter Blend = +1) on its own. Experiment with the Cutoff
Frequency and Resonance parameters. You’ll quickly learn how to emulate a number of
recognizable sounds, and will pick up the basic principles of subtractive synthesis
intuitively.
The Chain Symbols
Manipulating the Cutoff and Resonance controls in real time is one of the key
ingredients in the creation of expressive synthesizer sounds. You’ll be pleased to know
that you can control two filter parameters at once by dragging on one of the three little
chain symbols in the filter graphic.
 The chain between Cut and Res of Filter1 controls Resonance (horizontal mouse
movements) and Cutoff (vertical mouse movements) of the first filter simultaneously.
 The chain between Cut and Res of Filter2 controls Resonance (horizontal mouse
movements) and Cutoff (vertical mouse movements) of the second filter
simultaneously.
 The chain between Filter1’s Cut and Filter2’s Cut controls Cutoff (vertical mouse
movements) of the first filter, and Cutoff (horizontal mouse movements) of the
second filter simultaneously.
Flt Reset
If you increase the filter’s Resonance parameter to higher values, it will begin to
internally feed back and will start to self-resonate. This resonance results in a sine
oscillation (a sine wave), which you may be familiar with, if you’ve used subtractive
synthesizers before.
In order to start this type of oscillation, the filter requires a trigger. In an analog
synthesizer, this trigger may be the noise floor or the oscillator output. In the digital
domain of the ES2, noise is all but eliminated. As such, when the oscillators are muted,
there is no input signal routed to the filter.
When the Filter Reset button is engaged, however, each note starts with a trigger that
makes the filter resonate immediately. The Filter Reset button is located in the upper
right corner of the ES2 interface.