Silencing an audio file section, Reversing the selected area of an audio file, Trimming audio regions – Apple Logic Express 8 User Manual
Page 527
Chapter 21
Editing Audio in the Sample Editor
527
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Tip: Common fades (such as a fade-out at the end of a track) can also be achieved with
Mixer, automation, or Hyper Draw functions. The Arrange window Crossfade tool offers
a further, flexible, non-destructive fade option (see “
Creating Crossfades and Fades on
Silencing an Audio File Section
You can use the Silence command to set all amplitude values to zero, rather than
removing (with Cut or Delete) all data from the selected area of an audio file. This
function is generally used to silence unwanted background noise in quiet passages.
To silence the selected area of an audio file:
m
Choose Functions > Silence (or use the corresponding key command, default: Control-
Backspace).
Reversing the Selected Area of an Audio File
The Reverse command is most commonly used on an entire audio file, to reverse a
cymbal sound, for example. It can also be used as a creative option on selected
portions of audio files. As an example, the reverb tail at the end of a file can be
reversed, copied, and pasted to the beginning of the file.
To reverse the selected area of the audio file:
m
Choose Functions > Reverse (or use the corresponding key command,
default: Shift-Control-R)
Trimming Audio Regions
You can use the Trim command to remove unimportant passages (generally silence)
from the start and end of your audio files. Trim can also be used to remove portions of
audio files that are not used by regions.
To erase all unselected portions of an audio file:
m
Choose Functions > Trim (or use the corresponding key command: Control-T)
Important:
Make sure that the areas you are about to delete do not contain any
regions that you may need. Regions outside the selection area will be lost. Portions of
regions that fall partly outside the selection area are also removed, resulting in a length
reduction of the region. If any such regions are being used in the Arrange area, a
warning dialog will give you the option of cancelling the trim command.