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Audio processing and functions
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. If you activate Pre-Crossfade and specify a
value of e.g. 1000ms, the processing will be applied grad-
ually from the start of selection, reaching full effect 1000ms
after the start. Similarly, if you activate Post-Crossfade, the
processing will gradually be removed, starting at the speci-
fied 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 should con-
sist of spline curve segments (left button), damped spline
segments (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 appears.
• 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 “Fa-
des, crossfades and envelopes” on page 62.
Gain
Allows you to change the gain (level) of the selected audio.
The dialog contains the following settings:
Gain
This is where you set the desired gain, between -50 and
+20dB. The setting is also indicated below the Gain dis-
play as a percentage.
Clipping detection text
If you use the Preview function before applying the pro-
cessing, the text below the slider indicates whether the
current settings result in clipping (audio levels above
0dB). If that is the case, lower the Gain value and use the
Preview function again.
• If you want to increase the level of the audio as much as
possible without causing clipping, you should use the Nor-
malize function instead (see “Normalize” on page 121).
Pre- and Post-Crossfade
See “Pre/Post-Crossfade” on page 119.
!
The sum of the Pre- and Post-Crossfade times can-
not be larger than the length of the selection.