User Manual

WAVEFORM EDITOR
510
The close-up lens
The close up lens in the overview represents the
area of the audio file currently being displayed in
the main portion of the Waveform Editor window
as shown in Figure 44-1 on page 504. Drag the lens,
or its edges, to change what is displayed. To view
the entire file, drag the edges of the lens all the way
left and right. (Or you can click the Zoom to fit
button as shown in Figure 44-1.)
Making selections in the overview
The overview displays any current selections you
have made in the main waveform display. You can
also select any portion of the audio file in the
overview itself, as long as it is outside the close-up
lens.
Surround audio files in the overview
Surround audio files are displayed with all channels
superimposed on top of one another.
THE AUDIO LAYER
As shown in Figure 44-1 on page 504, the audio
edit layer lets you edit the audio waveform itself.
The amplitude ruler on the left measures sample
value from -1 to 1.
Editing deinterleaved audio files
When using deinterleaved audio, Digital Performer
stores stereo audio in pairs of mono files, each with
the same name and “.L” and “.R” in their names.
Digital Performer sample-locks the files together,
just as if they were interleaved, so that they always
remain perfectly in phase with one another. The
Waveform Editor has the ability to display and edit
these stereo audio files, in effect treating them as if
they are interleaved. Both channels of audio are
displayed as a dual-waveform, which are selected
and edited together (although you may also select
either channel by itself, if you wish. See “Selecting
with the I-Beam cursor” on page 512 for details.)
In the overview, you have the choice of displaying
both, one or the other, or both of them summed.
See “Waveform Editor preferences” on page 522.
Likewise, Digital Performer stores deinterleaved
surround audio files on disk as a group of mono
audio files, each with the same name and
appropriate file name (“.L” for left, “.R” for right,
“.C” for center, “.Ls” for left sur rou nd , “.Rs” for
right surround, “.LFE”, etc.). Digital Performer
sample-locks these files together, just as if they
were interleaved, so they always remain perfectly in
phase with one another.
Surround audio files display their channels
separately in Digital Performer’s waveform editor.
Editing surround files
The Waveform Editor provides full destructive
waveform editing of the separate channels of a
surround audio file. For example, you can use the
Pencil tool on an individual surround channel to
edit out a click or pop. The same is true for all other
destructive edit operations, such as applying plug-
in effects, cut/copy/paste operations, etc. To select
individual channels, use the same keyboard
shortcuts as for stereo files: Command/Ctrl-drag
to select individual channels; Command/Ctrl-
Shift-click to extend the selection. You can also
Shift-click the channel name (in the amplitude
ruler on the left edge of the window) to add or
remove a channel from the current selection.
If you make a selection that includes one or two
channels, you can use the New Audio File from
Selection mini-menu command to make a new
mono or stereo audio file.