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

tracks to the Timeline and use multiple video files and video clips on each
Video track. Only one Video track can be active, or online, at any time.
Auxiliary Inputs
An Aux Input track can be used as an effects return, a destination for a
submix, an input to monitor or process live audio (such as the output of a
synthesizer triggered from a MIDI source), or a control point for any other
audio routing task. Auxiliary inputs can be mono, stereo, or any supported
multi-channel format.
VCA Master Tracks
VCA Master tracks are available in Pro Tools HD software only. These
tracks emulate the operation of voltage-controlled amplifier channels on
analog consoles. Traditional VCA channel faders are used to control, group,
or offset the signal levels of other channels on the console. In similar fashion,
a Pro Tools VCA Master track is associated with a Mix group, and the tracks
in the Mix group can then be controlled by the VCA Master.
Master Faders
VCA Master tracks are covered in the 200-level Pro Tools
courses.
A Master Fader is a single fader used to control hardware output levels and
bus paths. Master Fader tracks control the overall level of the Audio tracks
that are routed to the session’s main output paths or busses. In Pro Tools, you
can create a Master Fader track for mono, stereo, or any supported multichannel
format.
Timebase
The track timebase refers to the type of Time Scale that material on the track
is associated with. All track types can be set to either sample-based (for the
Samples Time Scale) or tick-based (for the Bars|Beats Time Scale), with
different tracks set to different timebases, as needed.