User guide

302 Chapter 12 Getting to Know Regions
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.
To snap audio edits to zero crossings:
1 Click on the title bar of either the Audio Bin or Sample Editor to give the window key
focus.
2 Enable Edit > Search Zero Crossings (or use the Search Zero Crossings key command).
Note: The Search Zero Crossings option can be set independently for the Sample Editor
and Audio Bin.
Moving a Region Within an Audio File
You can also move an entire region within an audio file in the Audio Bin window.
To move the region area within the audio file:
1 Position the cursor over the center of a region.
2 When the cursor turns into a two-headed arrow, drag the region to the left or right.
Note: If you want to adjust the boundaries of the region without moving the anchor
(see next section), hold down Option during the operation. This applies to moving the
start or end points, as well as moving the whole region.
Two-headed arrow cursor