Apple Logic Pro X - Manual (Page 283)

Chapter 10 Create a song arrangement 283
Quantize regions
Quantizing involves the rhythmic correction of audio or MIDI regions to a specific time grid. Any
notes not played in time are moved to the nearest position on the grid.
You can quantize regions in the Tracks area by using the Quantize parameter in the Region
inspector. Several advanced quantization parameters are also available in the Region inspector
for greater control over quantization.
Before you quantize audio regions on an audio track, you must assign a flex mode to the audio
track, and select the Flex parameter in the Region inspector for that region. For details, see
Flex
Time algorithms and parameters on page 387.
The Quantize parameter in the Region inspector applies to whole regions. If you want different
parts of a region to have different Quantize values, you can split the region, apply different
quantize settings to different segments, and then join them using the Join command or the
Glue tool.
Quantize selected regions
m Choose a value from the Quantize pop-up menu in the Region inspector.
You can also step through the available Quantize values, one at a time, with the Set Quantize
Parameter to Next Value and Set Quantize Parameter to Previous Value key commands.
When you quantize audio regions, white lines called quantize flex markers appear over the
selected audio regions, to indicate where audio has been time-stretched during the time
quantization process.
The quantization grid for a MIDI region always begins at the start of the region. If the MIDI region
is not aligned with the beginning of a bar, neither is the quantization grid.