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268 Chapter 22 ES2
Rate (LFO 2)
The LFO2 Rate (frequency) control allows for the free (in the upper half of the slider
range) or song-tempo synchronized (in the lower half of the slider range) running of
LFO 2. The rate is displayed in Hertz or rhythmic values, dependent on whether the
song tempo synchronization is engaged or not. Rates range from speeds of 1/64-notes
through to a periodic duration of 32 bars. Triolic and punctuated values are also
possible. LFO 2 is ideally suited for rhythmic effects which retain perfect synchronicity,
even during tempo changes to the song.
The Envelopes (ENV 1—ENV 3)
In addition to the complex Vector Envelope, described in “The Vector Envelope” section,
on page 273, the ES2 also features three envelope generators per voice. On both the
front panel and as a source in the Router, they are abbreviated as ENV 1, ENV 2 and ENV
3, respectively.
Note: The roots of the term envelope generator and its basic functionality are described
in the “Envelopes” section, on page 199.
The feature sets of ENV 2 and ENV3 are identical. ENV 3 defines the changes in level
over time for each note played. You can regard ENV 3 as being “hard-wired” to the
Router’s AMP modulation target.
The parameters of ENV 2 and ENV 3 are identical—but ENV 3 is always used for control
over level.
Unlike many other synthesizers, there is no hard-wired connection between any of the
envelope generators and the cutoff frequencies of the ES2 filters. Modulation of the
cutoff frequencies must be set separately in the Router. In the default setting, this is
already the case—in the Router channel just below the Filter (see graphic).
Note: Set up a Router channel as follows, in order to establish this type of
modulation: Set target to Cutoff 1, Cutoff 2 or Cut 1 + 2, set source to, say, ENV 2. Once set
as described, the slider of the Router channel will function as the filter’s EG Depth
parameter.