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Audio processing and functions
The Preview, Process, and Cancel buttons
These buttons have the following functionality:
Pre/Post-Crossfade
Some processing functions allow you to gradually mix the
effect in or out. This is done with the Pre/Post-Crossfade
parameters. For example, if you activate Pre-Crossfade and
specify a value of 1000
ms, the processing is applied grad-
ually from the start of selection, reaching full effect 1000 ms
after the start. Similarly, if you activate Post-Crossfade, the
processing is gradually removed, starting at the specified
interval before the end of the selection.
Envelope
The Envelope function allows you to apply a volume enve-
lope to the selected audio. The dialog contains the follow-
ing settings:
Curve Kind buttons
These determine whether the envelope curve consists of
spline curve segments (left button), damped spline seg-
ments (middle button) or linear segments (right button).
Envelope display
Shows the shape of the envelope curve. The resulting
waveform shape is shown in dark gray, with the current
waveform shape in light gray. You can click on the curve
to add points, and click and drag existing points to change
the shape. To remove a point from the curve, drag it out
-
side the display.
Presets
If you have set up an envelope curve that you may want to
apply to other events or clips, you can store it as a preset
by clicking the Store button.
• To apply a stored preset, select it from the pop-up menu.
• To rename the selected preset, double-click on the
name and enter a new one in the dialog that opens.
• To remove a stored preset, select it from the pop-up
menu and click Remove.
Fade In and Fade Out
For a description of these functions, see the chapter
“Fades and crossfades” on page 95.
Gain
Allows you to change the gain (level) of the selected au-
dio. The dialog contains the following settings:
Gain
This is where you set the desired gain, between -50 and
+20 dB. The setting is also indicated below the Gain dis-
play as a percentage.
Button Description
Preview Allows you to listen to the result of the processing with the
current settings. Playback will continue repeatedly until you
click the button again (the button is labeled “Stop” during
Preview playback). You can make adjustments during Pre
-
view playback, but the changes are not applied until the start
of the next “lap”. Some changes may automatically restart
the Preview playback from the beginning.
Process Performs the processing and closes the dialog.
Cancel Closes the dialog without processing.
!
The sum of the Pre-Crossfade and Post-Crossfade
times cannot be larger than the length of the selection.