Apple Logic Pro 8 - Manual (Page 289)

Chapter 12 Getting to Know Regions 289
Resizing a Region
You can resize regions in the Audio Bin window, the Sample Editor, and the Arrange.
This section concentrates on the Audio Bin and Sample Editor options.
Note: Full details on all Arrange window region editing options are found in
Chapter 13, “
Creating Your Arrangement ,” on page 293.
To resize a region in the Audio Bin window, do one of the following:
m Click-hold the lower third of the left or right region boundary, and drag in the desired
direction.
To precisely resize a region:
m Drag the start or end points of regions in the Sample Editor, not the Audio Bin, when
accuracy is required. Ensure that Edit > Search Zero Crossings is disabled for the
Sample Editor (see below).
The small markers on the lower edge of the Sample Editor’s waveform display provide
direct access to the boundaries of the region.
Snapping Edits to Zero Crossings
If Edit > Search Zero Crossings is switched on, adjustments to the start or end positions
of a region are snapped to the nearest point where the wave form crosses the zero axis.
Put another way, there are certain crossover points in a sample (a drum loop, for
example) that are closely matched in level to other points in a sample. If two closely
matched points are used for the start and end points of the sample, the loop will play
back without noticeable glitches in the audio.
When adjusting the start point, the area preceding the selected point is scanned for a
smooth crossover point. When adjusting the end point, the area that follows the region
is scanned for a smooth crossover point.
Region markers