Envelopes control how your sound changes over time—from instant plucks to slow swells.
ADSR Envelope
Attack - How quickly sound reaches peak Decay - How quickly it drops to sustain Sustain - Level while holding note Release - Fade out after release
Examples
Piano: Fast attack, medium decay, no sustain, short release Pad: Slow attack, long decay, high sustain, long release Pluck: Instant attack, short decay, no sustain, quick release
Next: LFO