26
Amplifier Envelope
Dave Smith Instruments
To give you a real-world example, the main difference between the
sound of the wind and the sound of a snare drum is that they have very
different volume envelopes. Otherwise, they are essentially both white
noise. Wind has a relatively slow attack, a long sustain, and a long decay
and release. A snare drum has a sharp attack, no sustain, and very little
decay or release. But again, they are both fundamentally white noise.
AMPLIFIER
PAN SPREAD
ATTACK
ENV AMOUNT
DECAY
VELOCITY
SUSTAIN
DELAY
RELEASE
Amplifier Envelope
Attack
Decay
Sustain
Release
Delay
Amplitude
Time
note on
note off
A typical five-stage, DADSR envelope
Delay:
0...127
—Sets a delay between the time the envelope is triggered
(note on) and when the attack portion actually begins.
Attack:
0...127
—Sets the attack time of the envelope. The higher the
setting, the slower the attack time and the longer it takes for a sound to
reach its full volume. Pads typically have softer (longer) attacks. Percus-
sive sounds have sharper (shorter) attacks.
Summary of Contents for Prophet Rev2
Page 1: ...8 16 Voice Polyphonic Synthesizer...
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Page 21: ...11 Prophet Rev2 User s Guide Getting Started...
