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

Audio tracks are sample-based by default, meaning that audio clips and
events have absolute locations on the Timeline, correlated to specific sample
locations. Material on sample-based tracks maintains a constant absolute
position on the track, regardless of tempo or meter changes specified in the
session.
By contrast, MIDI and Instrument tracks are tick-based by default, meaning
that MIDI clips and events are fixed to bar and beat positions and move
relative to the sample Timeline as meter and tempo changes occur.
Although Audio tracks are sample-based by default, Elastic Audio–enabled
tracks can be switched to tick-based in order to automatically follow tempo
changes in your session and conform to the session’s tempo map.
You select whether a track is sample-based or tick-based when you create it;
however, you can change timebases later as needed.
Naming Tracks
Sample-based editing and tick-based editing are covered in
more detail in the Pro Tools 110 and 210M courses.
When you create tracks in Pro Tools, they are added to the session using
generic names, such as Audio 1, Audio 2, MIDI 1, and so on. To change a
track name to something more meaningful, double-click the track name within
the Edit window or the Mix window. A dialog box will appear, allowing you
to rename the track.
Tip: You can also name a track by right-clicking on the track name and
choosing RENAME from the pop-up menu.
Using the Track Name dialog box, you can also add comments to a track and
cycle through the tracks in your session, renaming and adding comments to
each, using the NEXT and PREVIOUS buttons. Comments you add will be
visible in the Comments area, if displayed, at the bottom of the channel strip
(Mix window) or at the head of a track (Edit window).
Figure 3.6 The Track Name dialog box