Apple Logic Pro 9 - Manual (Page 545)

You can use the Arrange area or the Sample Editor to make incredibly fine adjustments
to audio files. In this chapter you will see why the Sample Editor is the ideal tool for
removing pops and clicks in audio material, setting accurate crossover points for looped
playback, correcting phase cancelation errors, and much more.
You will also take a look at transient markers, which denote significant points—or
transients—in an audio file. The audio on a track is analyzed for transients the first time
you enable that track for Flex Time editing. Any detected transients in the file are marked
with transient markers.
Finally, you will learn about some audio processing tools—collectively known as the
Digital Factory—that are unique to the Sample Editor. These include time stretching and
pitch shifting, audio quantization, and extraction of pitch and rhythmic information from
audio—which can be applied to other audio or MIDI parts.
Important: Most edits and functions performed in the Sample Editor are destructive. This
means the actual data of audio files is changed. Although you can undo edits and
processing commands, you should get into the habit of working on copies of your audio
files, rather than the originals. It’s better to be safe than sorry.
This chapter covers the following:
• Opening the Sample Editor (p. 546)
• Getting to Know the Sample Editor (p. 547)
• Playing Audio Files in the Sample Editor (p. 548)
• Navigating Audio Files in the Sample Editor (p. 551)
• Making Selections in the Sample Editor (p. 552)
• Audio Editing and Processing in the Sample Editor (p. 556)
• Adjusting the Project Tempo in the Sample Editor (p. 567)
• Using Sample Editor Loop Functions (p. 567)
• Undoing Edit Steps in the Sample Editor (p. 568)
• Creating Manual Backups in the Sample Editor (p. 568)
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Editing Audio in the Sample Editor 17