Apple Logic Pro 9 - Manual (Page 527)

Getting to Know the Flex Modes
Flex modes determine how the audio material is processed, and each flex mode is best
suited to a specific type of audio material. Rhythmic, Monophonic, and Polyphonic flex
modes are named based on the type of material they are best suited for. Slicing,
Tempophone, and Speed are so named to indicate the specialized process they apply.
When you choose one of these flex modes from the Flex Mode pop-up menu, the
parameters for that flex mode appear below it in the Inspector’s Track Parameter box.
You adjust these parameters by selecting a checkbox or by dragging the value vertically.
Flex mode Flex mode and
parameters
You can choose from the following flex modes, and their respective parameters, for track-
and region-based Flex Time editing in Logic Pro:
Off
Disables all Flex Time editing properties on the audio track.
Note: If an audio track in this flex mode contains Apple Loops, they will follow the project
tempo unless the Follow Tempo checkbox is unselected in the Region Parameter box.
Slicing
Slices the audio material at transient markers, then shifts the audio while playing each
slice at its original speed. No time compression or expansion is applied to the shifted
audio. Any gaps that occur as a result of shifting the audio can be filled using the decay
function. Slicing is a good choice for drums and percussion.
• Fill Gaps: Turns the decay function on or off, allowing you to fill any gaps that occur
between sounds as a result of shifting the audio.
• Decay: Sets the decay time between sounds, because no time stretching takes place
to compensate for the gaps.
• Slice Length: Shortens each slice by a percentage value. Shortening slices can be helpful
for removing unwanted pre-attack sounds from the following slice, or to create a gated
effect.
527 Chapter 16 Flex Time Editing