Apple Logic Pro 8 - Manual (Page 506)

506 Chapter 21 Editing Audio in the Sample Editor
m Click the Time and Pitch Machine tab if another Digital Factory processor is visible.
You don’t need to enter, or adjust, all of the Time and Pitch Machine parameters to get
a good result. Most are linked, so an adjustment to the Tempo parameter will result in
changes to the Length values, and vice-versa.
Choosing the Mode and Algorithm
The Time and Pitch Machine’s Mode and Algorithm menus define the operating mode,
and algorithm, used when performing the time stretch or pitch shift.
Time and Pitch Machine Modes
You can choose between Free and Classic (default) in the Mode menu.
 Free is the most common setting when using the Time and Pitch Machine. It results
in a free compression/expansion or transposition of the audio material, where the
pitch and tempo are completely independent of one another.
 The Classic mode is for situations where you want to transpose a selected region,
and also affect its tempo. This produces an effect that you’re probably familiar with,
as it simulates the sound of changing tape speed. This mode changes the pitch, sonic
character, and playback speed of the audio material.
Time and Pitch Machine Algorithms
The Algorithm menu allows you to choose the algorithm that is best suited to the
audio material you want to process. Your choices are:
 Version 5: This algorithm was inherited from Logic 5. It can be used on most types of
audio material, and has a particular color, which may be useful as a creative option.
 Any Material: This is the most universal algorithm. It is able to handle most material.
 Monophonic: A specialized algorithm for monophonic material—an individual voice,
brass, or woodwind instrument, for example.
 Pads: Use this algorithm on polyphonic material with harmonic content—choirs or
string sections are good examples.