Pro Tools 101_ An Introduction to Pro Tools 11 ( PDFDrive )

3. Select either MIDI TRACK or INSTRUMENT TRACK in the Track Type
drop-down list. The Track Time Base drop-down will default to Ticks.
4. For Instrument tracks, choose between MONO and STEREO in the Track
Format drop-down list. (Additional multi-channel formats are available
with Pro Tools HD software.)
Figure 6.1 Creating stereo Instrument tracks in the New Tracks dialog box
Source: Avid ® .
5. Click CREATE.
When you create a track for working with MIDI data, the track timebase
defaults to Ticks, indicating that the track uses tick-based timing (also known
as bar-and-beat-based timing). MIDI operations are typically bar-and-beatbased,
whereas audio operations are typically sample-based.
Sample-Based Operation versus Tick-Based Operation
The differences between sample-based operation and tick-based operation
are essentially the differences between how audio data is stored and how
MIDI data is stored.
Sample-Based Operation
In sample-based operation, recorded information is tied to fixed points in
time relative to the beginning of the session. Audio data is stored as
individual audio samples in a file. In Pro Tools, audio clips are represented
on sample-based tracks by default. Audio clips that reside on a sample-based
track are located at particular sample locations on the Timeline. You can
think of these sample-based locations as absolute locations in time,
measured by the number of samples that have elapsed since the beginning of
the session. The audio clips are not affected by the session tempo and will
not move from their sample locations if the session tempo changes—though