Changes

== Automation ==

''Automation'' is a way to automatically control over some editable parameter. This is usually done using an ''automation track'', which is often tied directly to an audio or MIDI track. The automation track uses an ''envelope'' to control the parameter, which is essentially a series of points with varying magnitude connected by interpolating lines. For example, I can create an automation track as a child of my audio track with an envolope that has a starting point of 0 and an end point of 100% that controls the track volume. When I playback my track, the audio will start inaudibly low and gradually get louder and louder until it hits max volume when the audio ends.

Of course, automation can do far more than control volume. It can do panning sweeps, swift audio drop-outs (stutter-type effect), and complex fades. And this is just when controlling the track's basic parameters. It can also control parameters of plugins or virtual instruments. For instance, it can control the amount of reverb, create complex pitch shifting patterns, create complex cutoff filter movements, etc.