Apple GarageBand '08 - Manual (Page 79)

Chapter 9 Tutorial 7: Mixing and Adding Effects 79
To choose the automation curve you want to edit:
m From the pop-up menu on the left side of the track’s automation row, choose the
parameter you want to edit.
Now you can automate the parameter by adding control points to the curve, and then
dragging the control points to change their value at that point in time.
To add a control point:
m Click the line in the editor at the point in time where you want to add a control point.
Note: Adding a control point activates the curve if it is not already active. The square
button becomes colored to show that the curve is active.
To adjust a control point, do one of the following:
 Drag the control point up or down to a new value.
 Drag the control point left or right to move it to a different point in time.
You can use the vertical lines in the row to align control points with measures and
beats in the timeline.
For Real and Software Instrument tracks, you can automate Track Volume and Track Pan.
For the master track, you can automate Master Volume, Master Pitch, and Master
Tempo. You can also automate parameters for any effect on a track (including the
master track) by adding an automation curve for the parameter.
To add an automation curve for an effect parameter:
1 From the pop-up menu on the left side of the track’s automation row, choose Add
Automation.
A menu appears, listing all the effects on the track.
2 Click the disclosure triangle for the effect with the parameter you want to automate.
3 Select the checkbox for the parameter you want to automate. You can select multiple
parameters.
4 When you are done, click OK.
The parameter appears in the pop-up menu, and the automation curve switches to
show the automation for the last selected effect parameter.
You can also lock automation control points to regions, so that when you move the
region in the timeline, the control points move with it.