GarageBand Analog Swirl
The Analog Swirl instrument is based on the ES2. It is a warm analog synthesizer pad that features a chorused, swirling sound.
Volume slider: Sets the overall volume level of the instrument.
Modulation slider: Makes the sweeping movement of the pad faster or slower.
Cutoff slider: Allows more (high) or less (low) of the sound through, making it brighter or damping it.
Resonance slider: Emphasizes the frequency range around the point determined by the Cutoff parameter.
Attack slider: Makes the sound start more slowly or quickly. A fast setting makes it sound like striking a piano key, whereas a slow setting makes it sound like bowing a violin string.
Decay slider: Makes the harmonic portion of the sound (bright) sustain for a longer time at slow values. Faster values move to the Sustain level more quickly.
Sustain slider: Determines the level of the sound after the Attack and/or the Decay phase has completed.
Release slider: Determines the time it takes for notes to fade out after you let go of the keys on your keyboard.