DigiDesign Pro Tools, Reference Manual, Page: 555 / 886

Chapter 24: Beat Detective 541
10
To display the metric locations for the trig-
gers, select the Show Trigger Time option.
11
If you cannot get the beat triggers to appear
at the right locations, repeat steps 5–10 trying
the other Analysis algorithm (High or Low Em-
phasis).
To generate beat triggers from a MIDI selection:
1
In the Edit window, set the MIDI track you
wish to use to Notes View.
2
Make a selection across a range of MIDI data.
Make certain that the selection start and end
points are at musically relevant locations, such
as barlines.
3
Choose Event > Beat Detective.
4
Select MIDI from the operation pop-up menu.
5
In the Beat Detective window, select one of
the following modes:
• Bar|Beat Marker Generation
• Groove Template Extraction
6
Define the selection range. If the tempo and
meter of the audio selection do not match the
session’s default tempo and meter, enter the
Time Signature, and Start Bar|Beat and End
Bar|Beat locations. For a four-bar selection that
starts on beat 1, enter 1|1 and 5|1.
7
If your MIDI track contains chords, choose
one of the following MIDI chord recognition al-
gorithms from the Analysis pop-up menu:
• Last Note
• First Note
• Loudest Note
• Average Location
• Highest Note
• Lowest Note
8
Click the Analyze button.
MIDI Chord Recognition
Since MIDI notes in a chord may be played at
slightly different moments, Beat Detective inter-
prets notes that are close together (closer than
half the time value that is set in the Selection
Contains field) as a chord.
Beat Detective will use the criteria you set in the
Analysis pop-up menu to interpret the location
of the beat in relation to the chord.
Last Note
Sets the beat trigger to the start of the
last note played in the chord.
First Note
Sets the beat trigger to the start of the
first note played in the chord.
Loudest Note
Sets the beat trigger to the start of
the note in the chord played with the highest
velocity.
Average Location
Sets the beat trigger to a point
that represents the average between the start of
the first note played in the chord, and the last
note played in the chord.
Highest Note
Sets the beat trigger to the start of
the highest note played in the chord.
Lowest Note
Sets the beat trigger to the start of
the lowest note played in the chord.
MIDI chord analysis
First
Note
Last
Note
Highest Note
Lowest Note