10.6

Table Of Contents
432Logic Pro User Guide
Edit the timing of audio
Flex Time algorithms and parameters in Logic Pro
Flex Time algorithms are track-based settings that determine how the timing or pitch of
your audio material can be altered—using time compression or expansion, manipulating
invisibly sliced segments, or speeding up or slowing down the material. You can choose an
algorithm based on the type of audio material you’re working with. Each algorithm comes
with its own individual parameters, located in the Track inspector.
You can also have Logic Pro choose the most suitable Flex Time algorithm based on an
automatic analysis of your audio material.
Flex options are only available in the Track inspector when Show Advanced Tools is
selected in the Advanced preferences pane.
Note: When you choose a flex algorithm for a track, the Freeze Mode parameter in the
Track inspector switches from Pre Fader to Source Only. This freezes the track signal
without any effects plug-ins. See Freeze tracks.
Have Logic Pro choose a Flex Time algorithm
In the Logic Pro Tracks area or Audio Track Editor, choose Flex Time - Automatic from
the Flex pop-up menu.
The resulting algorithm is chosen as follows:
Monophonic for monophonic audio material—bass line, for example
Slicing for percussive, non-tonal audio material—drums, for example
Polyphonic for chords, or complex material—mixes, for example