96 I/O, 96i I/O, 192 I/O, 888|24 I/O, 882|20 I/O, 1622 I/O,
24-Bit ADAT Bridge I/O, AudioSuite, Avid, AVoption, Digi 002,
Digi 002 Rack, DigiDelivery, Digidesign, DigiTranslator, DINR,
DV Toolkit, M-Audio, Mbox, Pro Tools M-Powered, Pro Tools,
Pro Tools|HD, Pro Tools LE, Smack!, SoundReplacer, and TL
Space Native are trademarks or registered trademarks of
Digidesign and/or Avid Technology, Inc. All other trademarks
are the property of their respective owners.
Product features, specifications, system requirements, and
availability are subject to change without notice.
PN 9106-55481-00 REV A 06/06
Contents
Part I Introduction
Chapter 1. Welcome to Pro Tools
The Pro Tools Guides
Compatibility Information
About www.digidesign.com
Pro Tools|HD Systems
Pro Tools LE Systems
Pro Tools M-Powered
Pro Tools LE with DV Toolkit 2 and Pro Tools LE or M-Powered with Music Production Toolkit
Chapter 3. Pro Tools Concepts
Hard Disk Audio Recording
The Digidesign Audio Engine
Pro Tools Sessions
System Resources
MIDI Concepts
Chapter 4. Pro Tools Main Windows
The Mix Window
The Edit Window
The Transport Window
Menus and Windows
Tool Tips
Starting Up or Shutting Down Your System
Configuring Pro Tools System Settings (in the Playback Engine)
Configuring Pro Tools Hardware Settings
Creating a New Session
Session Files and Folders
Opening a Session
Saving a Session
Creating Custom Session Templates
Closing a Session
Quitting Pro Tools
System Usage
Preferences
The I/O Setup Dialog
Routing Hardware I/O to Pro Tools I/O
Creating and Editing Paths
I/O Settings Files
I/O Setup Options
H/W Insert Delay Compensation
Chapter 8. Tracks
Track Types
Track Channel Strips
Track Controls and Indicators
Adjusting Track Width
Creating Tracks
The Track List
Track Name Right-Click Pop-Up Menus
Assigning Inputs and Outputs to Tracks
Track Priority and Voice Assignment
Setting MIDI Input and Output
Soloing and Muting Tracks
Making Tracks Inactive
Color Coding for Tracks, Regions, Markers and Groups
Grouping Tracks
Group Controls
Working with Groups
Setting Group Attributes
Enabling Groups
Grouped Control Offsets
Importing Audio
Conversion Quality
Importing Audio Files and Regions
Importing Tracks and Track Attributes
Exporting Audio
Exporting Pro Tools Tracks as OMFI or AAF Sequences
Exporting Sessions as Text
Send via DigiDelivery
Importing MIDI Files
Exporting MIDI Files
Importing and Exporting Region Group Files
Chapter 10. File and Session Management and Compatibility
Audio File Management
WAV File Compatibility
Sharing Sessions Created on Different Computer Platforms
Sharing Sessions Created on Different Pro Tools Systems
Sharing Sessions Created on Different Pro Tools Software Versions
Multilingual Application Support for Pro Tools Systems
Input Connections and Audio Levels
Record Enabling Tracks
Record Monitoring Modes
Monitor Levels for Record and Playback
Monitoring Latency
Low Latency Monitoring with Delay Compensation
Default Track Names
Disk Allocation
Allocating Hard Drive Space for Recording
Monitoring Drive Space
Record Modes
Recording with a Click
Setting the Default Meter and Tempo
Welcome to Pro Tools®. Pro Tools integrates
powerful multitrack digital audio and MIDI
sequencing features, giving you everything you
need to record, arrange, edit, mix, and master
quality audio for music, video, film, and multimedia.
The Pro Tools Guides
Pro Tools systems include the following guides:
Getting Started Guide Instructions for installing
your Pro Tools system and connecting your
studio. For Pro Tools LE and M-Powered, these
guides also contain specific methods for accomplishing common tasks (such as recording in a
Pro Tools session, importing audio from a CD,
and creating an audio CD from a Pro Tools session).
Pro Tools Reference Guide Full details on all
Pro Tools functionality and operations.
(Pro Tools LE and M-Powered systems only include an electronic PDF version of the Reference Guide.)
DigiRack Plug-ins Guide Electronic PDF guide
with instructions for using the DigiRack plugins (included with Pro Tools) for both real-time
and file-based audio processing in Pro Tools.
Digidesign Plug-ins Guide Electronic PDF guide
with instructions for using optional Digidesign
plug-ins for both real-time and file-based audio
processing in Pro Tools.
DigiBase Guide Full details on using Pro Tools
DigiBase databasing and browsers for data and
media management. (Pro Tools LE and M-Powered systems only include an electronic PDF version of this guide.)
Expanded Systems Guide (Pro Tools|HD Systems
Only) Instructions for expanding a Pro Tools|HD
system with optional Digidesign cards or an expansion chassis.
MachineControl™ Guide (Pro Tools|HD Systems
Only) Electronic PDF guide for MachineControl
option, includes installation and operation instructions for using the MachineControl option
for Pro Tools to enable serial communication
with remote audio and video transports.
Pro Tools Menus Guide Electronic PDF guide to
the Pro Tools on-screen menus.
Pro Tools Keyboard Shortcuts Separate electronic PDF guides for Windows and Mac that list
keyboard and Right-click shortcuts, including
those shown in Pro Tools menus.
Additional Guides
Additional PDF guides (such as a Glossary) are
installed with Pro Tools. Refer to your Pro Tool
documentation folder.
Chapter 1: Welcome to Pro Tools 3
Digidesign also provides guides with audio interfaces, dedicated worksurfaces (such as D-Control) and controllers (such as Command|8), and
other Digidesign options (such as MIDI I/O,
PRE, and SYNC I/O). Refer to the separate guide
provided with each Digidesign product.
Conventions Used in These Guides
The Pro Tools guides use the following conventions to indicate menu choices, keyboard commands, and mouse commands:
:
ConventionAction
File > SaveChoose Save from the
File menu
Control+NHold down the Control
key and press the N key
Control-clickHold down the Control
key and click the mouse
button
Right-clickClick with the right
mouse button
The following symbols are used to highlight important information:
User Tips are helpful hints for getting the
most from your Pro Tools system.
Compatibility Information
Digidesign can only assure compatibility and
provide support for hardware and software it
has tested and approved.
For a list of Digidesign-qualified computers, operating systems, hard drives, and third-party devices, refer to the Digidesign Web site
(www.digidesign.com).
About www.digidesign.com
The Digidesign Web site (www.digidesign.com)
is your best online source for information to
help you get the most out of your Pro Tools system. The following are just a few of the services
and features available.
Registration Register your purchase online. See
the registration form included with your system
for instructions.
Support Contact Digidesign Technical Support
or Customer Service; download software updates and the latest online manuals; browse the
Compatibility documents for system requirements; search the online Answerbase or join the
worldwide Pro Tools community on the Digidesign User Conference.
Important Notices include information that
could affect your Pro Tools session data or
the performance of your Pro Tools system.
Shortcuts show you useful keyboard or
mouse shortcuts.
Cross References point to related sections in
this guide and other Digidesign guides.
Pro Tools Reference Guide4
Training and Education Study on your own using
courses available online or find out how you can
learn in a classroom setting at a certified
Pro Tools training center.
Products and Developers Learn about Digidesign
products; download demo software or learn
about our Development Partners and their plugins, applications, and hardware.
News and Events Get the latest news from Digidesign or sign up for a Pro Tools demo.
Chapter 2: Pro Tools System
Configurations
There are three types of Pro Tools systems:
Pro Tools|HD These systems include
Pro Tools HD
tem hardware.
Pro Tools LE These systems include
Pro Tools LE™ software for Digi 002
Digi 002 Rack™, Mbox
Pro Tools M-Powered™ These systems include
Pro Tools M-Powered software for Digidesignqualified M-Audio
®
software for Pro Tools|HD sys-
®
®
2, or Mbox® hardware.
®
interfaces.
,
Optional Systems
Pro Tools LE with DV Toolkit 2 Pro Tools LE systems that have been upgraded with the
DV Toolkit™ 2 software option.
Pro Tools LE or M-Powered with Music Production
Toolkit Pro Tools LE or M-Powered systems that
have been upgraded with the Music Production
Toolkit software option.
Pro Tools|HD Systems
Pro Tools|HD systems are available in the configurations shown on page 6. Each system requires at least one Digidesign audio interface
(sold separately). Pro Tools|HD systems can be
expanded by adding Pro Tools|HD system cards
to increase track count, add to the amount of
possible plug-in and mixer processing, and connect additional audio interfaces.
Pro Tools system performance depends on
factors such as computer processor speed,
amount of system memory, and hard drive
performance. Contact your Digidesign
dealer or visit Digidesign’s Web site for the
latest system requirements and compatibility information.
Chapter 2: Pro Tools System Configurations 5
Pro Tools|HD Systems
Pro Tools|HD 1
Includes:
• HD Core card
• Pro Tools HD software
Pro Tools|HD 2 Accel
Includes:
• HD Core card
• HD Accel card
• Pro Tools HD software
Pro Tools|HD 3 Accel
Includes:
• HD Core card
• Two HD Accel cards
• Pro Tools HD software
Pro Tools|HD 2
Supported Audio Interfaces
(Pro Tools|HD Systems Only)
The following audio interfaces are compatible
with Pro Tools|HD systems:
• 192 I/O™
• 192 Digital I/O™
• 96 I/O™
• 96i I/O™
Pro Tools|HD systems require the use of at
least one 192 I/O, 192 Digital I/O, 96 I/O,
or 96i I/O.
The following “Legacy” Digidesign audio interfaces are supported with Pro Tools|HD systems:
• 888|24 I/O™ and 882|20 I/O™
• 1622 I/O™
• 24-bit ADAT Bridge I/O™
“Legacy” I/Os (such as 888|24 I/O) require
the use of at least one 192 I/O, 192 Digital
I/O, 96 I/O, or 96i I/O.
Includes:
• HD Core card
• HD Process card
• Pro Tools HD software
Pro Tools|HD 3
Includes:
• HD Core card
• Two HD Process cards
• Pro Tools HD software
HD Accel and HD Process cards can be used
in the same system. For more information,
refer to the Pro Tools|HD Getting Started
Guide.
Pro Tools Reference Guide6
Pro Tools|HD System Playback, Recording and Voice Limits
The following table lists the audio playback, recording, and voiceable track limits of each type of
Pro Tools|HD system. Playback and recording voices refer to the number of unique simultaneous
playback and record tracks on your system. Total voiceable tracks refers to the maximum number of
audio tracks that can share the available voices on your system. (Mono tracks take up one voice. Stereo and multichannel tracks take up one voice per channel.) Voice limits are dependent on the session sample rate and the number of DSP chips dedicated to the system’s Playback Engine.
Pro Tools|HD systems can open sessions with up to 256 audio tracks, but any audio tracks beyond
that system’s voiceable track limit will be automatically set to Voice Off.
Table 3. Pro Tools|HD system audio playback, recording and voice limits
Playback
Sample
Core System Type
Pro Tools|HD 144.1/489696112
Pro Tools|HD Accel 2,
Pro Tools|HD Accel 3
Pro Tools|HD 2,
Pro Tools|HD 3,
or any expanded Pro Tools|HD system
Rate
(kHz)
88.2/96484848
176.4/192121212
44.1/48192192224
88.2/969696120
176.4/192363636
44.1/48128128224
88.2/96646480
176.4/192242424
Voices
(Mono Tracks of
Simultaneous
Playback)
Recording
Voices
(Mono Tracks of
Simultaneous
Recording)
Total
Voiceable
Tracks
Pro Tools|HD systems provide up to 160 Auxiliary Input tracks and a total of 128 internal mix busses.
These systems also provide up to 5 inserts and 10 sends per track (depending on the DSP capacity of
your system). In addition, Pro Tools|HD systems support up to 128 Instrument tracks and 256 MIDI
tracks.
Chapter 2: Pro Tools System Configurations 7
Audio Interfaces for Pro Tools|HD Systems
Table 4 lists the input and output capabilities of the various audio interfaces for Pro Tools|HD systems.
Table 4. Pro Tools|HD system audio interface channel capabilities
You can expand your Pro Tools|HD system by adding Pro Tools|HD cards to your computer, either directly in the computer or using an expansion chassis. Expanding your Pro Tools system will provide
an increased track count, add to the amount of possible plug-in and mixer processing, and let you
connect additional audio interfaces. For more information, see the Expanded Systems Guide.
“Legacy” I/Os (such as 888|24 I/O) require the use of at least one 192 I/O, 192 Digital I/O, 96 I/O,
or 96i I/O.
Pro Tools Reference Guide8
Pro Tools LE Systems
Pro Tools LE-based systems are available in the
following configurations:
Digi 002
A Digi 002 system includes:
• Digi 002 combined audio and MIDI interface, with a controller
• Pro Tools LE software
Digi 002 Rack
A Digi 002 Rack system includes:
• Digi 002 audio and MIDI interface
• Pro Tools LE software
Mbox 2
An Mbox 2 system includes:
• Mbox 2 audio and MIDI interface
• Pro Tools LE software
Processing Capacity
The total processing capacity of a
Pro Tools LE system depends on the processing power of your computer. Contact
your Digidesign dealer or visit Digidesign’s
Web site (www.digidesign.com) for the latest system requirements and compatibility
information.
Mbox
An Mbox system includes:
• Mbox audio interface
• Pro Tools LE software
Chapter 2: Pro Tools System Configurations 9
Pro Tools LE System Capabilities
Table 5 lists the playback, recording, and input and output capabilities of each Pro Tools LE system.
Mono tracks of simultaneous playback refers to the number of unique simultaneous playback and
record tracks on your system. Total voiceable tracks refers to the maximum number of audio tracks
that can share the available voices on your system. (Mono tracks take up a single audio track, while
stereo tracks take up two tracks.) If you open a Pro Tools session created on a Pro Tools|HD system
containing more than the number of tracks supported on the LE-based system, audio tracks beyond
the LE system’s voiceable track limit will be automatically set to inactive.
Table 5. Pro Tools LE system audio playback, recording, and channel capabilities
System
Type
Digi 002
or
Digi 002
Rack
Mbox 2
or Mbox
Mono Tracks of
Simultaneous
Playback
32128up to 18 in/18 out
32128up to 2 in/2 out24-bit24-bit24-bit
Total
Voiceable
Tracks
Number of I/O
Channels
(48 kHz or lower)
up to 10 in/10 out
(88.2 or 96 kHz)
A/D
Conversion
24-bit24-bit24-bit
D/A
Conversion
Digital
I/O
Pro Tools LE systems provide up to 128 Auxiliary Input tracks, a total of 32 internal mix busses, and
up to 5 inserts and 10 sends per track (depending on your computer’s processing capacity). In addition, Pro Tools LE systems support up to 32 Instrument tracks and 256 MIDI tracks.
For details on transferring session material between Pro Tools|HD and Pro Tools LE systems, see
“Sharing Sessions Created on Different Pro Tools Systems” on page 170.
Pro Tools M-Powered
A Pro Tools M-Powered system includes:
• Pro Tools M-Powered software
• Digidesign-qualified M-Audio interface (not supplied with M-Powered software)
References to Pro Tools LE in this guide are usually interchangeable with Pro Tools M-Powered, except as noted in this guide and the Pro Tools M-Powered Getting Started Guide.
For the most current list of Digidesign-qualified M-Audio interfaces, see the Digidesign Web site
(www.digidesign.com)
Pro Tools Reference Guide10
.
Pro Tools LE with DV Toolkit 2 and Pro Tools LE or M-Powered
with Music Production Toolkit
In addition to all the regular capabilities provided with Pro Tools LE and Pro Tools M-Powered, Pro Tools LE systems equipped with
DV Toolkit 2 and Pro Tools LE and M-Powered
systems equipped with Music Production Toolkit provide expanded capabilities.
Support for 48 Mono or Stereo
Tracks
Pro Tools LE systems with the DV Toolkit 2 option and Pro Tools LE or M-Powered systems
with the Music Production Toolkit option let
you play or record up to 48 simultaneous stereo
or mono tracks. These higher track counts may
require additional drives and faster Digidesignqualified computers.
Visit the Digidesign Web site for more information (www.digidesign.com).
For more information on track priority and
voice assignment, see “Voice Assignment
with Toolkit Options” on page 114.
Support for Up to 24 QuickPunch
Tracks
With DV Toolkit 2 or Music Production Toolkit,
up to 24 mono or stereo audio tracks can be simultaneously recorded with QuickPunch.
The combination of audio tracks and
QuickPunch tracks cannot be greater than
48.
DV Toolkit 2 Capabilitites
(Pro Tools LE Only)
Pro Tools LE Features
DV Toolkit 2 enables the following features for
working with audio, film, video, or digital video
in Pro Tools LE:
• Session and track features:
• Up to 48 audio tracks of simultaneous playback or recording, mono or stereo
• Ability to use QuickPunch on up to 24
tracks
• Import Session Data options (Destination
Track Names, Time Code Mapping, Find
Matching Tracks, Session Data to Import,
Track Playlist)
• MP3 export option (for bounce recording
or exporting a region as an MP3 file)
• DigiBase Pro (including support for Catalog
browsers and the ability to search on multiple criteria simultaneously in DigiBase
browsers)
• Editing features:
• Universe window
• Continuous Scroll
• Scrub Trim tool
• Replace Region command
• TCE Edit to Timeline Selection command
• Mixing and Automation features
• Snapshot automation for writing or trimming automation data
• Glide Automation commands
Chapter 2: Pro Tools System Configurations 11
• Time code and synchronization features:
• Timebase rulers (Time Code and
Feet+Frames)
• Time Code Rate selector
• Feet+Frame Rate selector
• Current Time Code Position command
• Current Feet+Frames Position command
• Use Subframes option
• Audio Rate Pull Up and Pull Down
• Video Rate Pull Up and Pull Down
Optional Software
DV Toolkit 2 includes the following optional
software for working with audio or digital video
in Pro Tools LE:
DINR™ (Digidesign Intelligent Noise Reduction™)
LE Plug-in For reducing noise in audio.
DigiTranslator™ Software Option For exchanging
audio and video files, and sequences with other
AAF and OMFI-compatible applications.
TL Space Native™ Convolution Reverb
Plug-in For applying convolution reverbs to your
audio.
VocALign Project Plug-in from Synchro Arts Software For automatically adjusting the timing of
one audio signal to match another.
Music Production Toolkit
Overview
(Pro Tools LE and Pro Tools M-Powered Only)
Pro Tools Features
Music Production Toolkit enables the following
features in Pro Tools LE and M-Powered:
• Session and track features:
• Up to 48 audio tracks of simultaneous playback or recording, mono or stereo
• Ability to use QuickPunch on up to 24
tracks
• MP3 export option (for bounce recording
or exporting a region as an MP3 file)
• Beat Detective features:
• Ability to apply Beat Detective across multiple tracks
• Collection Mode
Optional Software
Music Production Toolkit includes the following optional software for working with
Pro Tools LE and M-Powered:
DINR™ (Digidesign Intelligent Noise Reduction™)
LE Plug-in For reducing noise in audio.
Hybrid RTAS Synthesizer Plug-in For use as a vir-
tual instrument in your Pro Tools sessions.
Smack!™ LE Compressor Plug-in For applying
compression to your audio.
SoundReplacer™ Plug-in For replacing one
sound in a track with another (such as replacing
only the snares in your drum track with a different one-hit sample)
TL Space Native™ Convolution Reverb
Plug-in For applying convolution reverbs to your
audio.
Pro Tools Reference Guide12
Chapter 3: Pro Tools Concepts
This chapter explains the principles and concepts that form the foundation of Pro Tools operation and functionality.
Hard Disk Audio Recording
Tape-based recording is a linear medium—you
need to rewind or fast forward a tape to hear a
particular spot in a recording. To rearrange or repeat material in a linear system, you need to rerecord it, or cut and splice it.
Hard disk recording is a nonlinear (or random access) medium—you can go immediately to any
spot in a recording without having to rewind or
fast forward.
Nonlinear systems have several advantages. You
can easily rearrange or repeat parts of a recording by making the hard disk read parts of the recording in a different order and/or multiple
times. In addition, this re-arrangement is non-destructive, meaning that the original recorded
material is not altered.
Pro Tools is a nonlinear recording system that
lets you rearrange and mix recorded material
nondestructively.
The Digidesign Audio Engine
DAE (or Digidesign Audio Engine) is Digidesign’s real-time operating system for digital
audio recording, playback, and processing.
When you install Pro Tools, DAE is automatically installed on your system.
In the same way that a computer’s operating
system provides the foundation for programs
that run on the computer, DAE provides the
foundation for much of the hard disk recording,
digital signal processing, and mix automation
required by Pro Tools and other products from
Digidesign and its Development Partners.
The DAE Playback Buffer Size determines the
amount of memory DAE allocates to manage
disk buffers.
For information on configuring the DAE
Playback Buffer Size, see “DAE Playback
Buffer Size” on page 45.
The DAE Playback Buffer Size can be changed in
the Playback Engine dialog (see “Playback Engine Dialog” on page 14).
Chapter 3: Pro Tools Concepts 13
Playback Engine Dialog
Pro Tools takes advantage of your computer’s
host processor for certain tasks and optional
host-based DSP processing.
Pro Tools LE uses host (CPU) processing to provide audio track recording, playback, mixing,
and effects processing. Pro Tools HD can also
use host processing to run RTAS plug-ins for effects processing. Performance is determined by
your system and its Playback Engine settings.
The Playback Engine dialog lets you set a hardware buffer size and allocate a percentage of
CPU resources for these tasks.
Pro Tools Sessions
When you start a project in Pro Tools, you create
a session. Some basic elements of sessions are explained in this section.
Session File
A session file is the document that Pro Tools cre-
ates when you choose File > New Session and
configure a new session. Pro Tools can open
only one session file at a time. The session file is
named with a .ptf (Pro Tools file) extension. Session files contain maps of all elements associated with a project, including audio files, MIDI
data, and all your edit and mix information. It is
important to realize that a Pro Tools session file
does not contain any media files (audio or
video). Instead, it references audio, video, MIDI,
and other files. You can make changes to a session and save those changes in a new session
file. This lets you create multiple versions of a
session or back up your editing and mixing
work.
Playback Engine dialog for Pro Tools HD
On Pro Tools|HD systems, you can select the
number of voices and voiceable tracks for your
system and its sessions. Voice count choices are
based on how much DSP processing you want to
allocate for voicing.
For more information, see “Configuring
Pro Tools System Settings (in the Playback
Engine)” on page 41. See also “System Resources” on page 18.
On Pro Tools|HD systems, the Playback Engine
dialog is also where you assign dedicated DSP resources for Delay Compensation.
Pro Tools Reference Guide14
Pro Tools HD, Pro Tools LE, and Pro Tools MPowered have different session file icons.
Pro Tools HD
Session file icons
Although there are different session file icons,
the session files may be opened by all three applications (with certain restrictions). See “Opening a Session” on page 51.
Pro Tools LE
Pro Tools M-Powered
When a session is transferred to a different
Pro Tools system, its session file icon will
change to the icon type of the destination
system.
Tracks
Pro Tools tracks are where audio, MIDI, and automation data are recorded and edited.
Pro Tools tracks also provide audio channels for
routing internal busses, and physical inputs and
outputs for audio and MIDI.
Pro Tools provides seven types of tracks: audio
tracks, Auxiliary Inputs, Master Faders, VCA
Masters, MIDI tracks, Instruments tracks, and
video tracks.
Audio track in the Edit window (stereo track shown)
Video tracks support both QuickTime movies
and Avid video, but an individual video track
can play back only one of these types of video at
a time.
Audio, Auxiliary Input, Master Fader, VCA Master (Pro Tools HD only), and Instrument tracks
can be mono, stereo, or multichannel
(Pro Tools HD only). When creating a new
track, you can choose from a list of formats supported by your system.
Audio File
When you record audio into a Pro Tools session,
audio files are created.
Audio file icon
MIDI track in the Edit window
Audio, MIDI, and Instrument track data can be
edited into regions or repeated in different locations to create loops, re-arrange sections or entire songs, or to assemble tracks using material
from multiple takes.
Auxiliary Input tracks can route internal audio
busses or physical inputs to internal busses or
physical outputs. Auxiliary Inputs are typically
used for audio effects busses, audio throughput,
and submixing.
Master Fader tracks provide controls for physical
audio output channels, including the volume
level of your mix, panning, and plug-in inserts.
VCA Masters (Pro Tools HD only) provide control of tracks in a Mix Group that has been assigned to the VCA Master.
Audio files for each session are stored in a folder
named “Audio Files.” Audio files are listed in the
Pro Tools Region List and can appear in an audio track. A section of an audio file can be defined as a region. See “Regions” on page 15.
Regions
Audio region
A region is a segment of audio or MIDI data. A re-
gion could be a drum loop, a guitar riff, a verse
of a song, a recording take, a sound effect, some
dialog, or an entire sound file. A region can also
have associated automation data. In Pro Tools,
regions are created from audio or MIDI files, and
can be arranged in audio and MIDI track playlists. Regions can also be grouped and looped.
Chapter 3: Pro Tools Concepts 15
Playlist
A playlist can be made up of a single region or
many separate regions. It can be made up of
similar elements, such as regions from several
different takes of a solo, or dissimilar elements,
such as several sound effects.
You can create any number of alternate edit
playlists for a track. This lets you assemble different versions of performances or edits on a single track and choose between them from a popup menu on the track.
Playlist selector pop-up menu
A playlist is a sequence of regions arranged on an
audio or MIDI track. Tracks have edit playlists
and automation playlists.
On audio tracks, an edit playlist tells the hard
disk which audio regions to play in what order.
For example, you can use the same audio region
to access the same piece of audio multiple times
at different locations and not use additional disk
space. Different versions of the same original audio can be used in different places and have different effects applied. On MIDI and Instrument
tracks, edit playlists can store multiple MIDI sequences (or performances) on a track.
INPUTS 1-4
SW CTRL GAIN
3
17
2456
INPUTS 5-16
+4dBu/–12dBV
8910111213141516
OUTPUT
+4dBu/–10dBV
1
2
Each track also has a single set of automation
playlists, for volume, pan, mute, and each automation-enabled control for the insert and send
assignments on that track.
Channel
The term channel is used to describe several related components of a Pro Tools system. The
first example of channel refers to a physical input or output of your Pro Tools system.
For example, a 96 I/O audio interface (Figure 1)
provides up to 16 channels of input and output
to a Pro Tools|HD system, while an Mbox 2 audio interface provides up to four inputs and two
outputs
Figure 1. Back view of 96 I/O, with eight analog inputs, eight analog outputs, and eight digital input/output channels
(using a lightpipe)
Pro Tools Reference Guide16
The second use of the term channel refers to a
channel strip in the Pro Tools Mix window.
Each track in a Pro Tools session has a corresponding channel strip in the Mix window.
Audio and MIDI channel strips have similar
controls, but those controls have slightly different effects. For example, audio and Auxiliary Input channel strip faders control the output gain
to the mix bus for that channel, while MIDI
channel strip faders send MIDI volume data
(MIDI controller 7) to the MIDI instrument. Instrument track channel strips combine a MIDI
track and Auxiliary Input into a single channel
strip.
Signal Routing
Pro Tools provides software-based mixing and
signal routing controls. The Mix window is
where these controls are located. (Some of these
controls can also be accessed from the Edit window.)
A common signal routing task is to submix multiple tracks to a single channel strip (such as an
Auxiliary Input or a Master Fader) for shared
processing and level control. The following example shows three audio tracks submixed to a
stereo Auxiliary Input.
Stereo
Inserts
Sends
Outputs to
stereo bus
path
plug-in
Input from
stereo bus
path
Output to
stereo output
path
Figure 2. Channel strip in the Mix window (audio track)
The term channel also describes a separate
aspect of MIDI operation. See “MIDI Concepts” on page 20.
Audio tracks
Submixing to an Auxiliary Input
Chapter 3: Pro Tools Concepts 17
Auxiliary
Inputs
Signal Routing Options
Signal routing options include the following:
Track Input and Output (I/O) Controls The most
basic type of signal routing is track input and
output. A track needs to have an assigned input
path to record audio, and an assigned output
path in order to be audible through a hardware
output. Signals can also be routed to or from
other tracks in Pro Tools (or hardware inputs
and outputs) using internal busses.
Auxiliary Inputs and Master Faders Auxiliary Inputs are tracks that can be used as returns, submixers, and bus masters. Master Faders are used
as bus and output master level controls. Both
Auxiliary Inputs and Master Faders can have
plug-in and hardware inserts.
Instrument Tracks Instrument tracks let you
route sound from a plug-in instrument to outputs, sends and busses, or other inserts.
Sends Sends route audio from tracks to hardware outputs, or to internal busses that are in
turn routed to other tracks within Pro Tools.
Master Faders and VCA Masters do not have
sends.
Plug-in and Hardware Inserts Plug-in processing
occurs completely within the Pro Tools system.
Hardware inserts utilize audio interface inputs
and outputs, for traditional insert routing to
and from external effects and other devices.
Paths Paths are any routing option in Pro Tools,
including internal or external inputs, outputs,
busses, and inserts. Pro Tools lets you name
these paths, and these path names appear in the
Audio Input and Output Path selectors and
other menus. See Chapter 7, “I/O Setup” for
more information.
Mixing Formats Sessions can include combinations of mono, stereo, and multichannel format
tracks, busses, inputs, outputs, and inserts.
(Multichannel formats are supported on
Pro Tools|HD systems only.)
System Resources
Track count, plug-in processing, signal path and
routing options, and voice availability are ultimately limited by the combined resources available from the host computer, and from your
Pro Tools hardware.
Pro Tools provides several ways to manage and
conserve resources to maximize the performance of your system. As you begin working
with Pro Tools sessions and tracks, you can take
advantage of the following features to extend
the effectiveness of your available DSP and
other resources:
◆ Pro Tools lets you adjust the performance of
your system by changing system settings that affect its capacity for processing, playback, and recording. See “Configuring Pro Tools System
Settings (in the Playback Engine)” on page 41.
◆ In order to free up needed DSP resources,
Pro Tools allows for certain items (such as tracks
and inserts) to be manually made inactive. Inactive elements are viewable, editable, and retained within the session. See “Active and
Inactive Items” on page 19.
◆ All Pro Tools systems provide flexible voice
options for audio tracks, to help maximize use
of available voices in your system. For more information on voice management and options,
see “Voice Borrowing” on page 115.
Pro Tools Reference Guide18
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