Specifications

Pro Tools Reference Guide616
auto-created region Automatically created re-
gions are a by product of editing and punch re-
cording over existing regions.
Automation modes Function for recording and
playing changes in levels, pan controls, and vir-
tually every adjustable parameter (including
plug-in parameters) in Pro Tools. There are sev-
eral different automation modes in which to
write automation data in Pro Tools.
aux See Auxiliary Inputs.
Auxiliary Inputs In Pro Tools, these input chan-
nels are used for send and bus returns (input
only). Sends are used for output routing.
auxiliary send See send.
AVoption PCI cards and software that integrates
Avid video technology with Pro Tools.
AVoption|XL PCI card, video interface, and soft-
ware that integrate Avid video technology with
Pro Tools.
.AVI Movie file format for the Video for Win-
dows component of Microsoft’s Media Player,
supported by Pro Tools.
bit depth One of two main specifications that
define digital audio quality (the other is sample
rate). Bit-depth defines how precisely a sound’s
dynamic range is represented. Also called bit-
resolution or bit-rate.
black burst See house video reference.
BNC Coaxial cable connectors used for video
and synchronizer signals.
Bounce To Disk Mixing a segment of audio (or
an entire session) internally to disk, without
leaving the digital domain. Bit rate, dithering
options, and other parameters are provided by
Pro Tools for bouncing to disk.
breakpoint Step or level on a track’s automation
playlist.
Broadcast WAV File (BWF) A variation of Mi-
crosoft’s .WAV audio file format that contains
additional data on the title, origination, date,
and creation time of the audio content not in-
cluded in the standard .WAV file format. An im-
portant feature of BWFs is their support of time
stamping. Time stamping allows files to be
moved from one session to another and easily
aligned to their original point in time.
browser The location where information con-
tained in the databases is displayed and manip-
ulated. With DigiBase, files can be moved on the
volumes and spotted into Pro Tools sessions by
drag and drop.
bus (noun) An internal routing path.
bus (verb) To route one or more signals to one or
more destinations (either internal or external).
clipping, clipping indicator the LED at the top of
each channel meter indicates a level may have
run out of headroom, and is approaching clip-
ping.
clock reference Common “speed” reference,
which various devices can use to establish syn-
chronization during playback and recording.
Conductor Ruler A ruler that can show session
data. There are three types of conductor rulers,
called Tempo, Meter, and Marker rulers.
continuous controller data MIDI instructions
that affect MIDI note parameters, including vol-
ume, panning, velocity, pitch bend, and modu-
lation. Also, the main type of instructions sent
by MIDI control surfaces.