M-Audio Pro Tools Recording Studio [685/1112] When the main time scale is set to bars beats and you are using tempo changes set the linearity display mode to linear tick display see changing the lin earity display mode on page 682 this will keep the bars beats ruler fixed at the selected zoom level and sample based rul ers such as minutes seconds will scale to fit any tempo changes while bar lengths re main constant

M-Audio Pro Tools Recording Studio [685/1112] When the main time scale is set to bars beats and you are using tempo changes set the linearity display mode to linear tick display see changing the lin earity display mode on page 682 this will keep the bars beats ruler fixed at the selected zoom level and sample based rul ers such as minutes seconds will scale to fit any tempo changes while bar lengths re main constant
Chapter 33: Time, Tempo, Meter, Key, and Chords 667
The Sub Counter
Below each Main Counter is a Sub Counter that
can be shown or hidden. The Sub Counter pro-
vides an additional timing reference.
To show (or hide) the Sub Counter in the Edit
window:
From the Main Counter selector, select (or de-
select) the Show Sub Counter option.
To show the Sub Counter in the Transport window:
From the Transport Window menu, ensure
that the Counters and Expanded Transport op-
tions are enabled.
To set the Time Scale for the Sub Counter:
Click the Sub Counter selector and select a
Time Scale.
Tick-Based Timing
Pro Tools is a sample-based program with an in-
ternal MIDI resolution of 960,000 pulses per
quarter note (ppq). However, when the Time
Scale is set to Bars|Beats, the display resolution
in Pro Tools is 960 ppq and the Timebase is tick-
based.
When working in Bars|Beats, you will often
want to specify tick values for a number of oper-
ations, including:
Placing and spotting regions
Setting lengths for regions or MIDI notes
Locating and setting play and record ranges
(including pre- and post-roll)
Specifying settings in the Quantize and
Change Duration pages of the Event Oper-
ations window
Setting the Grid and Nudge values
Sub Counter selector (in the Edit window)
In the Bars|Beats Time Scale, Pro Tools is
tick-based (960 ticks to a quarter note),
which means that some amount of sample-
rounding may occur when placing events at
certain locations (see “Sample Rounding
and Edit Operations” on page 670).
When the Main Time Scale is set to
Bars|Beats, and you are using tempo
changes, set the Linearity Display Mode to
Linear Tick Display (see “Changing the Lin-
earity Display Mode” on page 682). This
will keep the Bars|Beats ruler fixed (at the
selected zoom level) and sample-based rul-
ers such as Minutes:Seconds will scale to fit
any tempo changes while bar lengths re-
main constant.

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