Dave Smith Instruments Prophet Rev2 - Filter Envelope

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24 Filter Envelope Dave Smith Instruments
Filter Envelope
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(DADSR). The Filter Envelope is used to shape the harmonic charac-
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attack, decay, sustain, and release stages (plus a delay parameter to delay
the onset of the envelope).
This is one of the most important aspects of designing a sound. Without
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sound. That’s not very interesting to listen to and it’s not how instruments
behave in the real world.
In general, sounds produced by an instrument are brighter at their begin-
ning (the attack stage) and grow mellower as they die out (the decay and
release stages). In other words, their harmonic content changes over time.
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CUTOFF RESONANCE ENV AMOUNT VELOCITY KEY AMOUNT AUDIO MOD
4 POLE DELAY ATTACK DECAY SUSTAIN RELEASE
LOW-PASS FILTER
Filter Envelope
Attack Decay Sustain Release Delay
Amplitude
Time
note on note off
A typical 5-stage DADSR envelope