Namespace Envelope

Attack function that grows quickly from [0, 0] to [length, 1] in a concave shape.

Attack function that grows slowly from [0, 0] to [length, 1] in a convex shape.

Release function that stays at 1 from [0, 1] to [releaseTime, 1] and then decays slowly from [releaseTime, 1] to [totalTime, 0] in a convex shape.

Linearly-interpolated envelope, described by a set of [x, y] points.

Release function that stays at 1 from [0, 1] to [releaseTime, 1]