ReverbΒΆ
Reverb can be used to add space to sounds and can infinitely sustain.

modulation sets the amount of modulation.
feedback sets the gain inside the feedback loops and determines how long the reverb will last.
dry/wet sets the balance between the original input signal, and the reverberated signal.
size sets the size of the reverb: small, medium or large.
filter sets the cutoff frequency of the lowpass filter in the feedback and dampens the reverb tail.
color sets the character of the reverb tail: clean, lossy, noisy, 14-bit or 12-bit.