10.6

Table Of Contents
748Logic Pro User Guide
Randomize Tempo: Adds random tempo changes based on the parameters you specify.
Round Existing Tempo Changes: Rounds existing tempo changes in the specified range
to whole BPM or 1/10 BPM units.
Create a tempo change in the Tempo Operations window
1. In the Logic Pro Tempo Operations window, choose Operation > Create Tempo Curve.
2. Use the Position or Time field to define the area that the tempo change should take
place across:the left field sets the curve start point and the right field, the curve end
point.
3. Enter start and end tempi in the Tempo line.
4. Select a curve type.
Three kinds of tempo curves are available from the Curve Type pop-up menu. Each of
these offers a Curvature parameter (the field to the right of the Curve Type pop-up
menu), which determines if the tempo should speed up or slow down, depending on
whether positive or negative curvature values are entered.
5. Adjust the Curvature parameter.
6. Alter the concentration of graphical tempo change events with the Density parameter.
Values of 1/8 and finer should be used only if really necessary (with very slow or fast
tempo changes, for example). Don’t select a resolution higher than 1/8 or finer, just to
make the curve look smoother. This results in an unnecessary amount of processing,
and the creation of more tempo change events than are needed.
As you change the values, the displayed tempo curve (which is calculated from the
tempo settings you’ve made) is shown in red.
Note: The “Continue with new Tempo” checkbox determines whether the original tempo
resumes after the tempo curve ends (unselected), or the new tempo (the last tempo
change event in the curve) is maintained (selected).
7. Click Apply when you’re done.
Create a constant tempo curve
In the Logic Pro Tempo Operations window, choose Operation > Create Tempo Curve,
then do one of the following:
To remove all tempo variations between two points without changing the SMPTE
time for the rightmost position: Click the Apply button.
To retain the new tempo or return to the initial tempo: Select the “Continue with new
Tempo” checkbox.
Scale tempo changes
1. In the Logic Pro Tempo Operations window, choose Operation > Scale Existing Tempo
Changes.
2. Adjust the scaling percentage using the Scale value slider.
Positive percentage values speed up sections, and negative ones slow them down.