The Envelopes; What's An Envelope; Envelope Features; Envelopes 1 And 2 - Ashun Sound Machines HYDRASYNTH Owner's Manual

What's an Envelope?

An envelope defines the shape of a modulation: how it begins, how it ends, and how big it
will be in the middle. Hydrasynth has 5 envelopes that can be used to shape any available
parameter through the Mod Matrix. All 5 have identical parameters, so every description
applies equally to all.

Envelope features

ADSR plus
A Hydrasynth envelope provides the classic
ADSR form factor (Attack, Decay, Sustain, and
Release). But they've been enhanced with
delay and hold stages, so technically the form
factor is DAHDSR.
Adjustable curves
The Attack, Decay, and Release segments have
curves that can be adjusted gradually from
Logarithmic to Linear to Exponential. They can
be snappy, lazy, or anything in-between. This
allows you to specify exactly how you want
the patch to proceed from start to finish.
Time-based segments
Envelopes can operate in one of two modes:
synchronized or unsynchronized. If the BPM
Sync option is On each segment can occupy
a specific rhythmic value. If the BPM Sync
option is Off the duration of each segment is
measured in seconds (or milliseconds). Every
envelope and segment will last exactly as long
as you want.
Note that the BPM Sync setting affects all
stages except Sustain, which is merely a level
(i.e., a place, not an event).
The wonderful thing about triggers
Once it is triggered an envelope can run freely
(Freerun: On), reset with each new note (Reset:
On), or reset only if all other notes have been
released (Legato: On).
It's easier to hear an envelope reset with a
monophonic patch than with a polyphonic
patch. For an example see the description of
Reset (p. 49).
Looping envelopes
Hydrasynth envelopes can loop a specific
number of times or indefinitely.
Modulation and interaction
An envelope can be used as a modulation
source for any destination, and individual
envelope segments can be modulated
(shortened or lengthened) by LFOs or by other
envelopes.
Thanks to the Mod Matrix, envelopes and LFOs
can interact and evolve in a nearly infinite
number of ways. For a quick tip on how to do
this, see Envelope Shortcuts (p. 50)
of this chapter.

Envelopes 1 and 2

Hydrasynth has pre-wired connections linking
ENV 1 to the Filters and ENV 2 to the Amp
module. This is because every sound has
amplitude and timbre, even if a distinct pitch
is not present. More envelopes can be routed
to these destinations as needed through
Mod Matrix
47

The Envelopes

(p. 73).
at the end
The