DigiDesign Pro Tools, Справочное руководство

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Chapter 24: Beat Detective 545
Navigating Consecutive Beat Triggers
Use the Scroll Next button to move from the
currently selected beat trigger to the next beat
trigger. To move to the previous beat trigger,
Alt-click (Windows) or Option-click (Mac) the
Scroll Next button. This is particularly useful for
editing consecutive beat triggers when zoomed
in at the sample level.
Generating Bar|Beat Markers
with Beat Detective
Once Beat Detective has accurately detected the
peak transients in the audio selection and accu-
rately generated beat triggers, the triggers can be
converted to Bar|Beat Markers. Bar|Beat Markers
generated by Beat Detective create a tempo map
that can be used throughout the session.
Once a tempo map has been generated, other
audio regions and MIDI notes can be conformed
to the Bar|Beat Markers generated by Beat Detec-
tive.
If you want to match the audio material to the
session’s existing tempo map or a groove tem-
plate, do not generate Bar|Beat Markers from the
material. Instead, use Beat Detective to separate
and conform the material (see “Separating Re-
gions with Beat Detective” on page 548).
To generate Bar|Beat Markers with Beat
Detective:
1
In the Edit window, make an audio selection.
2
In the Beat Detective window, select Bar|Beat
Marker Generation mode.
3
Define or capture the selection as described in
“Defining a Beat Detective Selection” on
page 538.
4
Set the Detection resolution to Bars or Beats,
and configure the Detection settings so the se-
lection’s peak transients are accurately detected
(see “Generating Beat Triggers” on page 540).
5
Click the Generate button.
Bar|Beat Markers are generated, based on the
beat triggers, and appear in the Tempo ruler.
Working with Sub-Beats
Tempo is derived from Bar|Beat Markers.
Groove, or feel, is derived from Sub-Beats—the
deviation of subdivisions of the beat from the
strict tempo grid determines the groove or feel.
To extract the groove from a selection, set the
Detection Resolution to Sub-Beats. This ensures
that the inner rhythms within each bar (if they
indeed exist) are represented when generating
If you are simply aligning a sloppy part to
the other tracks, you probably do not need to
generate Bar|Beat markers.
Bar|Beat Markers generated at Bar resolution
Bar|Beat Markers generated at Beat resolution