Reference Guide

613
Synchronizing audio and the project tempo
AudioSnap (Producer and Studio only)
Editing a clip’s tempo map
Each audio clip has an internal tempo map, which makes it possible to synchronize the audio clip
with the project’s global tempo map (see “Editing a clip’s tempo map” on page 613).
SONAR automatically creates a tempo map for each audio clip. In some cases, SONAR can detect
the wrong tempo. For example, SONAR might detect a tempo of 120 BPM when the actual tempo is
240 BPM, or a beat may be mapped to the wrong transient. You can easily remap the tempo map, if
necessary.
SONAR provides a convenient graphical interface for editing a clip’s tempo map.
You should make sure a clip’s internal tempo map is correct before using any of the tempo-related
commands in the AudioSnap palette.
The following figure shows what a SONAR-generate clip tempo map might look like.
Figure 203. You can edit the internal tempo map of each audio clip
The following controls are available when editing a clip’s tempo map:
• Beat markers. Each detected beat has a corresponding beat marker. You can remap a beat
marker by dragging the marker to any active transient marker. When a beat marker has been
moved, it turns red and becomes “anchored” to the assigned transient marker. An “anchored”
beat marker is a marker that has been edited as opposed to a beat that SONAR detected. To “un-
anchor” a beat marker, double-click the marker.
• Average Tempo. This list shows the average tempo candidates: original, 0.5x and 2x. SONAR
will do its best to detect the correct average tempo, but a clip can often have multiple potential
tempos (60 BPM, 120 BPM, 240 BPM, etc.). If SONAR is unable to detect a tempo, Average
Tempo will be set to Original, which is the project’s tempo at the location the clip was recorded or
imported. If you change the Average Tempo setting, all clip tempo changes are adjusted to scale.
This list also contains the Set Clip Tempo From Project command, which copies the project’s
tempo map to the clip’s tempo map. This allows the project’s measure boundaries to align with
the audio clip.
• Beats per measure. This list lets you specify the number of beats per measure. The value
range is 2 to 14, and the default value is 4.