Apple Logic Pro 9 - Manual (Page 566)

3 Select the S Curve checkboxes if you want to create s-shaped curves.
These settings are automatically stored in Logic Pro preferences when Logic Pro is closed,
and they apply to all projects.
Tip: The Arrange window’s Crossfade tool offers a further, flexible, nondestructive fade
option (see
Creating Crossfades and Fades on Audio Regions ).
Reversing an Audio File Selection in the Sample Editor
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. For 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 an audio file
µ
Choose Functions > Reverse (or use the corresponding key command, default
assignment: Shift-Control-R).
Reversing the Phase of an Audio File in the Sample Editor
You will find the Invert command extremely useful for correcting phase cancelation errors,
or when several out-of-tune signals (or several signals processed through chorus effects)
are to be mixed down to mono.
To reverse the phase of all selected audio material
µ
Choose Functions > Invert (or use the corresponding key command).
All negative amplitude values become positive, and vice versa.
Note: This doesn’t audibly change the file, if heard in isolation.
566 Chapter 17 Editing Audio in the Sample Editor