Apple Logic Pro X - Manual (Page 603)

Chapter 19 Make global changes to a project 603
Use beat mapping on audio regions
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
m 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 on page 602.