Apple Soundtrack Pro - Manual (Page 229)

Chapter 10 Working With Automation 229
Thinning Envelope Points in Recorded Automation Data
Recording automation data can generate a large number of envelope points. The
number of envelope points recorded can make editing envelopes difficult, and in some
cases affect playback performance.
You can reduce or “thin” the number of envelope points recorded from a control
surface in the Project Preferences. You set the amount of thinning using the
Automation Recording Sensitivity slider. The automation data is thinned when you
finish recording automation.
To set the amount of thinning:
1 Choose Soundtrack Pro > Preferences, then click the Project button.
2 In the Project pane, drag the Automation Recording Sensitivity slider to adjust the
amount of thinning.
When the slider is set to High, no thinning occurs. The envelope contains every
movement of the control. Dragging the slider to any position other than High results
in some thinning of envelope points. By default, the slider is set to a moderate amount
of thinning.
For more information about Soundtrack Pro project preferences, see “ Project
Preferences ” on page 76.
Working With Timeslices
Timeslices let you select the contents of a track, or of multiple tracks, and the track’s
envelopes for a section of time. When you select a Timeslice, the Timeslice selection
area is highlighted in blue.
Selecting Timeslices
To select a Timeslice from a single track:
m Drag in the selection bar along the top of the track.
The selection snaps to the nearest Snap To position if snap is turned on. For
information about setting the Snap To value, see “
Using Snap ” on page 72.
Drag in the selection bar
to create a Timeslice.