Apple Logic Pro 9 - Manual (Page 586)

The process of Noise Reduction is single-ended, meaning it affects material that is already
recorded, and there is no need to decode the signal during playback. Even noise present
in the original signal can be processed.
Note: When you are applying Noise Reduction, it is recommended that you turn off the
Spike Reduction function. This ensures that only the Noise Reduction function is used.
• Strength slider: Determines the strength of the reduction level used on noise in the
audio file.
• Off: No edits will occur.
• Min: Smallest possible edit, with values closer to Min having a small effect.
• Max: Maximum possible reduction of the noise component.
Note: The “correct” value depends on the quality of the material, and your own personal
taste. Good-quality material should be edited using Min, or values close to it. You will
probably notice only minor changes in the sound. Bad-quality (noisy) material should
be processed at higher values, or even Max. If the setting is too high, the treble
component of the signal will be reduced.
Using the Sample Editor’s “Audio to Score”
You can use “Audio to Score” to transform a monophonic audio recording into musical
notation by creating a MIDI region that corresponds to the recorded melody.
Note: Good results can be achieved using clearly identifiable, monophonic audio material.
This function is best-suited to producing melody notes from a clearly sung non-legato
vocal line. It works best on unprocessed audio—that is, audio without effects.
586 Chapter 17 Editing Audio in the Sample Editor