Adjusting A Region's Length; Crossfading Between Regions - Mackie HDR24 Editing Manual

Adjusting a Region's Length

The locations in time of a region's outer edges can be changed by positioning the
cursor over a region's edge. The hand becomes a bi-directional arrow with which
you can drag the edge of the region. Try this:
With the Hand tool, drag a region's leading edge to the right; the region starts at a
later time, shortening the audio at the beginning, but leaving the rest of the region
undisturbed. Drag the left edge to the left and the region grows, adding audio from
its corresponding audio file ... as if by magic. This is a great shortcut for editing
the endpoints of regions, without having to select and delete areas.

Crossfading between Regions

Crossfades are simply two overlapping fades; the audio in the leading region fades
out while the trailing region fades in. See page 15 for details on how they work.
Very short crossfades over a splice can work well to smooth the transition. Long
ones can sometimes sound very strange, or may be just the effect you're after (for
instance if you're blending narration in over a music bed). Listen to your edits and
make a judgement.
In the Tools panel, select AUTO X-FADE. Select a region and CTRL-drag it to the
right, making a copy. Position the copy so that it's not touching the original. Drag
the start of the copy to the left, back over the original version. Notice the red fade
lines automatically reaching from the original region's trailing edge to the new
region's leading edge. The greater the overlap area, the longer the crossfade.
Right-clicking in the crossfade area brings up a variety of choices for the slope of
the fade-in and fade-out. Try playing a few back; notice how the underlying
waveform display reflects the actual amplitude changes.
Note: With AUTO X-FADE disabled, overlapping regions do not fade into each
other; rather, one region lies "under" the other and any "overlapping" audio is not
played.
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Editing Guide