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3rd Wave User Manual
Amplier Envelope
SUSTAIN: (0-127) Sets the lter cutoff frequency for the sustained portion
of the sound. The sound will stay at this lter frequency for as long as a
note is held on the keyboard.
RELEASE: (0-127) Sets the release time of the envelope. This controls how
quickly the lter closes after a note is released.
DELAY: (0-127) Sets a variable amount of delay before the envelope is trig-
gered. This is particularly useful when creating multi-part sound if you
want the onset of one the parts to be delayed in relation to the others.
SHAPE MODE (on Misc page of envelope): (Exponential, PPG) Sets the response
of the envelope. You can choose between standard, exponential response,
or “PPG” response. The PPG’s envelope’s were rather unique in their
behavior. The best way to get a feel for their behavior is to try them with
a variety of Attack, Decay, and Release settings.
Amplier Envelope
After passing through the lters, a synthesized sound goes into an
amplier, which controls its overall volume. Like the Filter, the Amplier
has a dedicated 4-stage envelope generator (ADSR) with an additional
delay parameter, which you can use to delay the onset of the envelope.
The Amplier Envelope is used to shape the volume characteristics of
a sound over time by giving you control over its attack, decay, sustain,
and release stages Along with the lter envelope, this is one of the most
important factors in designing a sound.
Without a volume envelope, the volume of a sound wouldn’t change
over the duration of a note. It would begin immediately, remain at its full
volume for the duration of the note, then end immediately when the note
was released. Again, not very interesting sonically and not typically how
real instruments behave.
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