Apple Soundtrack Pro 2 - Manual (Page 124)

124 Chapter 4 Working with Multitrack Projects
Tracks, Busses, Submixes, and the Master Bus
Multitrack projects contain tracks, busses, and submixes. Tracks, busses, and submixes
appear as horizontal rows in the Timeline and as vertical channel strips in the Mixer. In
both the Timeline and Mixer, tracks, busses, and submixes are grouped together, with a
separator between each category. You can move each type within its own category but
cannot move it to either of the other categories. Each track, bus, and submix has a
header with its icon, name, and a set of controls. The Master bus represents the final
mix that goes to physical outputs. The Master bus has no icon or editable name.
Tracks
Tracks contain the audio you add to your project in the Timeline. Each track has a color
label, a name, an icon, and a set of controls that appear in the track’s header in the
Timeline and in its channel strip in the Mixer. Track controls include a volume slider, a
pan control, a submix pop-up menu, and buttons to mute or solo the track, bypass
effects, and enable the track for recording. In addition, each channel strip includes level
meters you can use to watch the track’s levels and a set of effects slots where you can
add and order track effects and sends.
Busses
In Soundtrack Pro, a bus is a separate but parallel audio signal created with a send. A
send can tap an audio signal and create a separate signal known as a bus. (Some might
call this an auxiliary bus.) Busses can be processed or combined independently of the
main signal. They can be combined with other signals in a submix or at the final mix, or
they can be routed to altogether separate outputs.
Each bus has a color label, a name, an icon, and a set of controls that appear in the
bus’s header in the Timeline and in its channel strip in the Mixer. Bus controls are the
same as track controls, except that a bus does not have an Arm for Recording button
(because you can’t record audio to a bus). The bus controls affect the audio of every
track sent (routed) to that bus.
Send
Track
Submix bus
Bus
1
Audio clip
Effects
Volume fader