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236 Chapter 20 ES2
The Envelopes (ENV 1 to ENV 3)
In addition to the complex vector envelope, described in “The Vector Envelope” section,
on page 242, 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 423.
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).
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.
Note: Both ENV 2 and ENV 3 are velocity sensitive, making it unnecessary to set via to
Velo in the Router channel: You can leave via switched off.