Apple Logic Pro 9 - Manual (Page 575)

The “Time and Pitch Machine” contains Mode and Algorithm, Tempo, and Pitch parameters.
Mode and Algorithm
Tempo parameters
Pitch parameters
You don’t need to enter, or adjust, all of the “Time and Pitch Machine” parameters. Most
are linked, so an adjustment to the Tempo parameter will result in changes to the Length
values, and vice versa.
Setting Mode and Algorithm in the “Time and Pitch Machine”
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.
• Mode menu: You can choose between Free and Classic in the Mode menu.
• Free: In Free mode (the more common mode setting), you can make all pitch and
tempo adjustments independently of one another.
• Classic: In Classic mode, pitch and tempo are linked, so transposing a selected region
also affects its tempo. The resulting effect simulates the sound of changing tape
speed. The pitch increases as the tape speeds up, and it decreases as the tape slows
down.
575 Chapter 17 Editing Audio in the Sample Editor