Specifications

Pro Tools Reference Guide236
When creating Markers and Selection Memory
Locations, you can specify whether they have
an Absolute (sample-based) or Bar|Beat (tick-
based) reference. For more information, see
“Bar|Beat and Absolute Reference” on page 325.
Sample Rounding and Edit Operations
Because audio material in Pro Tools is sample-
based, some amount of sample-rounding may
occur with some edits when the Main Time
Scale is set to Bars:Beats. This is most evident
when you need audio regions to fall cleanly on
the beat (as when looping) and notice that the
material is sometimes a tick or two off. With a
few simple precautions, this can be avoided.
When selecting audio regions to be copied, du-
plicated, or repeated, make sure to select the ma-
terial with the Selector (enable Grid mode for
precise selections), or set the selection range by
typing in the start and end points in the Event
Edit area. Do not select the material with the
Grabber (or by double-clicking with the Selec-
tor). This ensures that the selection will be pre-
cise in terms of bars and beats (and not based on
the length of the material in samples).