Apple Soundtrack - Manual (Page 89)

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Working in the Timeline
The Timeline is where you arrange audio clips to build your
soundtrack. You can also adjust volume and panning, add
effects, and edit envelopes to control automation.
The Timeline displays a visual representation of a project, showing the point in time
when audio clips start playing and their duration. You control when and how long clips
play by moving and resizing them in the Timeline.
The Timeline is arranged in three sets of horizontal rows: tracks, busses, and outputs.
You add audio clips to tracks, create submixes using busses, and send audio to physical
output devices using outputs. For information about working with tracks, busses, and
outputs, see “
Tracks, Busses, and Outputs ” on page 86.
The Timeline also displays vertical gridlines that make it easy to position clips
precisely in time. The gridlines correspond to the divisions of time in the Time ruler.
The units of time the gridlines display change depending on the time format and the
current zoom level.
Moving Around in the Timeline
Soundtrack provides several controls that let you change the view of the Timeline
and move to different parts of your project. You can zoom in or out for a closer or
wider view of the Timeline, control how many tracks are displayed in the Timeline,
and change which part of the project is currently visible using the scroll bars and
Timeline controls. You can use the Global Timeline view to quickly move to different
parts of your project.
Using the Scroll Bars
If the entire project cannot be displayed in the Timeline, you can scroll through the
project using the horizontal scroll bar located at the bottom of the Timeline. Drag the
horizontal scroll bar left or right to move the visible part of the Timeline.