10.6

Table Of Contents
757Logic Pro User Guide
Use beat mapping on audio regions in Logic Pro
Beat mapping audio regions works similarly to beat mapping MIDI regions. If the audio
regions don’t contain tempo information, they must be analyzed to find transients (short
amplitude peaks, usually at rhythmically prominent positions), which can be mapped to a
ruler position, before you can use them for beat mapping.
Transients appear as blue vertical lines in the lower part of the Beat Mapping track, aligned
to peaks in the audio waveform. If no transients are visible on the selected audio regions
when you open the Beat Mapping track, analyze the regions before applying beat mapping.
Detect transients in audio regions
In Logic Pro, select the regions to analyze, then click the title “Beat Mapping” in the
Beat Mapping track and choose Analyze Transients from the shortcut menu.
After the regions are analyzed, the transients appear as blue vertical lines in the lower part
of the Beat Mapping track.
Tip: It may be difficult to identify transients if the waveform overview is too small. If
transients are hard to see, click the Waveform Zoom button in the Tracks area menu bar to
visually resize the waveform in the Beat Mapping track.
The remaining steps for beat mapping audio regions are the same as for MIDI regions. To
follow those steps, see Use beat mapping on MIDI regions in Logic Pro.
There are a number of ways to improve the beat mapping accuracy of audio regions. When
you choose Analyze Transients, those transients above a certain threshold are displayed.
You can adjust the threshold using the Minus and Plus (–/+)buttons in the Beat Mapping
track.