Apple Soundtrack - Manual (Page 182)

182 Appendix A Using Apple Loops Utility
To add a new transient:
m Click in the darker area above the Beat ruler in the waveform display.
To move a transient marker:
m Drag the marker by its handle in the area above the Beat ruler.
To change the beat value of detected transients:
m Choose a beat value from the Transient Division pop-up menu.
Choosing a larger beat value results in fewer transients being detected. Choosing a
smaller beat value results in more transients being detected, if they are present in the
audio recorded in the file.
Sometimes transients occur at points in the audio file other than on a beat value. You
can have Apple Loops Utility detect additional transients in the file using the Sensitivity
slider. When you increase the sensitivity of transient detection, Apple Loops Utility
considers points of higher amplitude in the waveform as transients, regardless of
whether or not they occur at a beat value.
To change the sensitivity of transient detection:
m Drag the Sensitivity slider to the left to decrease the sensitivity, or to the right to
increase the sensitivity of transient detection.
To remove a transient, do one of the following:
m Click the transient’s handle in the area above the Beat ruler, then press the Delete key.
m Drag the transient out of the area above the Beat ruler.