Automation allows us the ability to manipulate parameters over time. Examples of this can be, adjusting the levels of tracks in a mix automatically, at key points, or to the creative movement of frequency or filter sweeps.
Logic X pro has a variety of modes around automation. We will focus on the main three in this introduction.
Read: Plays back all automation that exists on the track. If volume data exists, for example, the Volume fader moves during playback, following the prerecorded automation on the track. You can’t change the value of the chosen automation parameter by moving controls when in Read mode.
Touch: Plays back automation in the same way as Read mode. You can modify the value of the chosen automation parameter by moving controls in Touch mode. After the fader or knob is released, the parameter follows existing automation on the track.
Latch: Works like Touch mode, but after the fader or knob is released, the new parameter value replaces existing automation on the track
Write: The forth is write which erases existing automation on the track as the playhead passes over it.
Test out Touch and Latch automation modes, see how they behave differently. Notice that when in Read mode things are not captured only played back. Lastly, test out Write mode and see how it will erase any automation with its current static value.