User manual

402
Working with the Tempo track
Merge Tempo From Tapping
This function allows you to create a complete tempo track
based on your tapping. Typically, you would use this if you
have an audio file with no tempo mapping and want to be
able to add sequenced material afterwards, etc.
1. Create an empty time-based MIDI track and, while
playing back your audio material, tap the new tempo on
your MIDI keyboard and record the created notes onto the
new MIDI track.
Note that you must create note events – pedal events cannot be used for
this function.
2. Play back the audio and check that the timing of the
MIDI notes corresponds to that of the audio.
If necessary, edit the MIDI notes in an editor.
3. Select the part (or the individual notes in an editor)
that you want to use for the calculation.
4. Select “Merge Tempo From Tapping” from the Func-
tions submenu on the MIDI menu.
A dialog opens.
5. In the dialog, specify what type of note (1/2, 1/4 etc.)
you tapped during the recording.
If you activate the “Begin at Bar Start” option, the first note will automati-
cally start at the beginning of a bar when calculating the new tempo curve.
6. Click OK.
The project’s tempo is adjusted to the tapped notes.
7. Open the Project menu and select “Tempo Track” to
check that the new tempo information is reflected in the
tempo curve.
Ö Another way of creating a tempo map for freely re-
corded audio would be to use the Time Warp tool, see
below.
The Time Warp tool
The Time Warp tool lets you adjust the Tempo track so
that “musical time-based” material (positions related to
the tempo) matches “linear time-based” material (posi-
tions in time). Some typical applications:
• When you have recorded music (audio or MIDI) without tempo
reference or metronome click, the Time Warp tool can be used
for creating a tempo map that fits the recording (allowing you to
rearrange or add sequenced material).
• When you are creating music for a movie and want to match
certain positions in the video with certain positions in the music.
The Time Warp tool makes use of the fact that tracks can
be based on time positions (linear time base) or positions
related to tempo (musical time base), see “Switching bet-
ween musical and linear time base” on page 42 for a de-
scription of these modes.
Basic procedure
You use the Time Warp tool to drag a musical position (a
position in bars+beats format) to a certain position in time.
This can be done in the Project window or in editor win-
dows, as described below. Here is the general procedure:
1. Make sure Tempo track mode is selected.
You cannot use the Time Warp tool in Fixed tempo mode.
2. Select the Time Warp tool.
Bars+Beats format is automatically selected for the ruler in the active
window, and the ruler is shown in brown.
3. Click in the window at a musical position and drag it
so that it matches a position in the material you are editing
– e.g. the start of an event, a certain “hit” within an audio
event, a frame in a video clip, etc.
When you click with the Time Warp tool, it snaps to the grid in the window.
Dragging the start of bar 3 to the start of the audio event.