DigiDesign Digidesign Pro Tools 8.0, Reference Manual

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Pro Tools Reference Guide 554
be recognized as being part of the same beat
events (only a little bit late). For information on
individually analyzing multiple tracks, see “Us-
ing Collection Mode” on page 570.
Calculating Tempo with Beat
Detective
If you know the meter, and start and end points
of the audio selection, use Beat Detective to cal-
culate its tempo.
To calculate a selection’s tempo with Beat
Detective:
1
Make an Edit selection in the Edit window or
a MIDI Editor window (MIDI only) and define
the selection in the Beat Detective window as
described in “Defining a Beat Detective Selec-
tion” on page 552.
2
Select Bar|Beat Marker Generation .
3
In the Detection section (Normal mode), click
Analyze
.
4
Set Sensitivity set to 0%.
5
Click
Generate
.
Bar|Beat Markers are automatically generated at
the beginning and end of the selection, indicat-
ing the material’s tempo and meter.
Generating Beat Triggers
Once you have accurately defined the selection
range, Beat Detective can generate beat triggers
based on detected MIDI notes or audio peak
transients. The range and type of transients
found can be adjusted with the Detection set-
tings, allowing you to zero in on the bars, beats,
and sub-beats in the material, while avoiding
the non-rhythmic content.
To generate beat triggers from an audio selection:
1
In the Edit window, make an audio selection.
2
Select Audio from the Operation pop-up menu.
3
In the Beat Detective window, select one of
the following modes:
• Bar|Beat Marker Generation
• Groove Template Extraction
• Region Separation (audio only)
4
Define or capture the selection as described in
“Defining a Beat Detective Selection” on
page 552.
5
From the
Analysis
pop-up menu, choose a de-
tection algorithm.
6
Click Analyze .
Beat Detective LE cannot be used across
multiple tracks without the Music
Production Toolkit 2 or the Complete Pro-
duction Toolkit option. When Beat Detec-
tive LE (without the Music Production Tool-
kit 2 option) is applied to multiple tracks,
only the top track is edited.
Beat Detective, Detection mode
Beat Detective generated Bar|Beat Markers identifying
tempo and meter