DigiDesign SYNC HD, SYNC I/O User Manual
SYNC™ HD
Version 8.0
Legal Notices
This guide is copyrighted ©2009 by Digidesign, a division of
Avid Technology, Inc. (hereafter “Digidesign”), with all rights
reserved. Under copyright laws, this guide may not be
duplicated in whole or in part without the written consent of
Digidesign.
003, 96 I/O, 96i I/O, 192 Digital I/O, 192 I/O, 888|24 I/O,
882|20 I/O, 1622 I/O, 24-Bit ADAT Bridge I/O, AudioSuite,
Avid, Avid DNA, Avid Mojo, Avid Unity, Avid Unity ISIS,
Avid Xpress, AVoption, Axiom, Beat Detective, Bomb Factory,
Bruno, C|24, Command|8, Control|24, D-Command, D-Control,
D-Fi, D-fx, D-Show, D-Verb, DAE, Digi 002, DigiBase,
DigiDelivery, Digidesign, Digidesign Audio Engine, Digidesign
Intelligent Noise Reduction, Digidesign TDM Bus, DigiDrive,
DigiRack, DigiTest, DigiTranslator, DINR, D-Show, DV Toolkit,
EditPack, Eleven, HD Core, HD Process, Hybrid, Impact,
Interplay, LoFi, M-Audio, MachineControl, Maxim, Mbox,
MediaComposer, MIDI I/O, MIX, MultiShell, Nitris, OMF,
OMF Interchange, PRE, ProControl, Pro Tools M-Powered,
Pro Tools, Pro Tools|HD, Pro Tools LE, QuickPunch, Recti-Fi,
Reel Tape, Reso, Reverb One, ReVibe, RTAS, Sibelius,
Smack!, SoundReplacer, Sound Designer II, Strike, Structure,
SYNC HD, SYNC I/O, Synchronic, TL Aggro, TL AutoPan,
TL Drum Rehab, TL Everyphase, TL Fauxlder, TL In Tune,
TL MasterMeter, TL Metro, TL Space, TL Utilities, Transfuser,
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Product features, specifications, system requirements, and
availability are subject to change without notice.
Guide Part Number 9106-59127-00 REV B 04/09
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Communications & Safety Regulation Information
Compliance Statement
The models SYNC HD and SYNC I/O comply with the following
standards regulating interference and EMC:
• FCC Part 15 Class A
• EN55103 – 1, environment E4
• EN55103 – 2, environment E4
• AS/NZS 3548 Class A
• CISPR 22 Class A
Radio and Television Interference
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules.
DECLARATION OF CONFORMITY
We, Digidesign,
2001 Junipero Serra Blvd.
Daly City, California 94014-3886, USA
650-731-6100
declare under our sole responsibility that the products
SYNC HD and SYNC I/O
comply with Part 15 of FCC Rules.
Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device
must accept any interference received, including interference
that may cause undesired operation.
Communications Statement
NOTE: This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own
expense.
Changes or modifications to this product not authorized by
Digidesign, Inc., could void the Certification and negate your
authority to operate the product.
Canadian Compliance Statement:
This Class A digital apparatus complies with Canadian ICES003
Cet appareil numérique de la classe A est conforme à la norme
NMB-003 du Canada
Australian Compliance
European Compliance
Safety Statement
This equipment has been tested to comply with USA and
Canadian safety certification in accordance with the
specifications of UL Standards: UL60065 7th /IEC 60065 7th
and Canadian CAN/CSA C22.2 60065:03. Digidesign Inc., has
been authorized to apply the appropriate UL & CUL mark on its
compliant equipment.
Warning
Important Safety Instructions
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9) Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding type plug has two blades and
a third grounding prong. The wide blade or the third prong are
provided for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of the
obsolete outlet.
10) Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
11) Only use attachments/accessories specified by the
manufacturer.
12) Unplug this apparatus during lightning storms or when
unused for long periods of time.
13) Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate
normally, or has been dropped.
Contents v
contents
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SYNC Peripheral Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
System Requirements and Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Digidesign Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About This Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About www.digidesign.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2. Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
MachineControl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Synchronization and Time Code Connections to Machines, Decks, and Other Devices . . . . . . . 10
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Emulating a SYNC I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuring a SYNC Peripheral from Pro Tools HD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
MachineControl Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Software Configuration for the SYNC Setup Software Utility . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Chapter 3. SYNC Peripheral Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SYNC Peripheral Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SYNC Peripheral Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SYNC Setup Software Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chapter 4. Using SYNC Peripherals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SYNC Peripheral Controls in Pro Tools, SYNC Setup Software Utility, and the Front Panel . . . . . 34
Front Panel Generator/Parameter Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Clock References and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Positional Reference and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Compensating for Time Code Offsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
SYNC HD Guidevi
Generating & Regenerating Time Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Generating a Window Dub. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Chapter 5. Additional Operational Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Front Panel Generator/Parameter Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Using Fader Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Calibrating the SYNC Peripheral Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Restoring Factory Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Managing and Selecting Video Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Appendix A. Additional Synchronization Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Video and VITC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
LTC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Auto-Switch LTC/VITC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Digital Clock Signal Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Bi-Phase/Tach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Pilot Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Appendix B. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Appendix C. Wiring Diagrams and Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
LTC Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Bi-Phase/GPI/Pilot Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Bi-phase/Tach OptoCoupler Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
GPI Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
GPI (TTL)/MTC Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
GPI (opto) Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Connector Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
SYNC Peripheral Cable Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Bi-phase/Tach/GPI/Pilot Port Interfacing Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Chapter 1: Introduction 1
chapter 1
Introduction
This guide covers operation of the SYNC HD
and SYNC I/O, Digidesign’s multipurpose
synchronization peripherals for Pro Tools HD
systems.
Digidesign SYNC peripherals support all
Pro Tools sample rates, and synchronize to most
major time code and clock reference standards
used in audio, video, film, and multimedia
production.
Digidesign SYNC peripherals can also be used as
standalone synchronization devices.
SYNC Peripherals with Pro Tools|HD
Systems
With a Pro Tools|HD system, Digidesign SYNC
peripherals provide highly accurate lock to time
code. Most SYNC peripheral settings are available directly from within Pro Tools.
SYNC Peripherals in Standalone Mode
Digidesign SYNC peripherals can be used as
standalone synchronization converters, time
code generators, clock generators and time code
character generators. Throughout this guide, the
term standalone refers to systems using the
SYNC HD or SYNC I/O but not using Pro Tools.
When used as a standalone device (or in “Standalone mode”), a SYNC peripheral is connected
to time code or clock signals, and is configured
from the front panel.
Optionally, while in Standalone mode, a SYNC
peripheral can be controlled remotely from a
Windows computer using the SYNC Setup
software utility.
SYNC Setup Software Utility
(Windows Only)
The SYNC Setup software utility can be used
with or without Pro Tools to control SYNC
peripheral features from any supported Windows computer.
SYNC HD Guide2
SYNC Peripheral Features
Digidesign SYNC peripherals support all
Pro Tools HD sample rates (44.1, 48, 88.2, 96,
176.4, and 192 kHz).
The SYNC HD supports both industry standard
SD (standard definition) and HD (high-definition) video reference rates, while the SYNC I/O
supports SD video reference rates only.
SYNC peripherals provide the following features
with Pro Tools HD:
Supported Positional Reference Sources
•LTC
•VITC
• Serial Time Code
•Bi-phase/Tach
Supported Clock Reference Sources
• Loop Sync
•Video Reference
• SD reference rates
• HD reference rates (SYNC HD only)
• Composite Video Input
• Word Clock
• AES/EBU (DARS per AES-11 standard)
• Pilot Tone
• Internal Crystal
•Bi-phase/Tach
•LTC
Output and Generation
• Loop Sync
• Digidesign Super Clock (256x sample clock)
• Word Clock (1x sample clock)
• AES/EBU null clock (AES “digital black”)
• VITC (if a video input is present)
•LTC
• MIDI Time Code (MTC)
• Dual 9-pin Sony P-2 protocol ports (only one
can be active at a time), for limited serial deck
control with Digidesign MachineControl
Other Features
• Front panel controls and a large LED display
of time code and parameters
• Integrated control from Pro Tools
• Time Code Character Generator
• Fader start, provided through GPI output, for
remote transport control from select Pro Tools
fader movement
• Standalone remote control through SYNC
Setup software utility (Windows only)
• Field-updatable firmware
• SYNC I/O Emulation for legacy software support (SYNC HD only)
Chapter 1: Introduction 3
Controlling SYNC Peripherals in
Standalone Mode
If you are using a SYNC peripheral in Standalone
mode, you can control it with the SYNC Setup
software utility (Windows only), or with the
switches on the front panel of the SYNC peripheral.
The SYNC Setup software utility (Windows
only) gives you access to all SYNC peripheral
controls. The following SYNC peripheral parameters are accessible only through Pro Tools or
the SYNC Setup software utility:
• Variable Speed Override (VSO)
• Window dub parameters: While you can
turn the Window dub on or off from the
front panel, you cannot configure its display parameters without Pro Tools or the
SYNC Setup software utility.
System Requirements and
Compatibility
SYNC Peripherals with Pro Tools
To use a SYNC peripheral with Pro Tools HD,
the following is required:
• A Digidesign-qualified Pro Tools|HD system
• An available DigiSerial port on the system’s
HD Core card
• An 8-pin to 8-pin serial cable (included) to
connect the SYNC peripheral to the DigiSerial
port on a Pro Tools PCI or PCIe card
SYNC Setup Software Utility
(Windows Only)
The optional SYNC Setup software utility requires the following:
A Digidesign-qualified Windows computer.
An available COM port or serial port on the
computer to connect to the SYNC peripheral.
(You cannot run the SYNC Setup software utility
through the DigiSerial port on Pro Tools cards.)
A non-standard 9-pin to 8-pin cable is re-
quired to connect the SYNC peripheral to a
COM port or serial port on a Windows computer. Wiring instructions for making the required cable are in Appendix C, “Wiring
Diagrams and Pin Assignments.”
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, third-party
devices, and all the latest compatibility
information, visit the Digidesign website
(www.digidesign.com/compatibility).
See “SYNC Peripheral Controls in
Pro Tools, SYNC Setup Software Utility,
and the Front Panel” on page 34.
If you use a custom serial cable between
Pro Tools and the SYNC peripheral, be sure
the cable supports hardware handshaking.
The maximum supported length for this
cable is 100 ft.
For more information, see Appendix C,
“Wiring Diagrams and Pin Assignments.”
The computer requirements for the SYNC
Setup software utility are different from the
computer requirements for Pro Tools. You
can run the SYNC Setup software utility
from slower Windows computers.
SYNC HD Guide4
Digidesign Registration
Review the enclosed Digidesign Registration
Information Card and follow the instructions
on it to quickly register your purchase online.
Registering your purchase is the only way you
can be eligible to receive complimentary technical support and future upgrade offers. This is
one of the most important steps you can take as
a new user.
About This Guide
This guide assumes:
• You understand the basics of synchronization and time code
• You know how to operate devices that send
or receive time code, such as a video deck
• You have an understanding of the time
code requirements for your projects
This Guide covers use of the SYNC HD and the
SYNC I/O with Pro Tools HD version 8.0 and
higher.
Conventions Used in This Guide
Digidesign guides use the following conventions to indicate menu choices and key commands:
:
The names of Commands, Options, and Settings
that appear on-screen are in a different font.
The following symbols are used to highlight important information:
For versions of Pro Tools lower than 7.3, the
SYNC HD can be set to emulate a
SYNC I/O. See the Digidesign website
(www.digidesign.com) for a version of the
SYNC I/O Guide that applies to your system.
Convention Action
File > Save Choose Save from the File
menu
Control+N Hold down the Control key
and press the N key
Control-click Hold down the Control key
and click the mouse button
Right-click Click with the right mouse
button
User Tips are helpful hints for getting the
most from your system.
Important Notices include information that
could affect your data or the performance of
your system.
Shortcuts show you useful keyboard or
mouse shortcuts.
Cross References point to related sections in
this guide and other Digidesign guides.
Chapter 1: Introduction 5
About www.digidesign.com
The Digidesign website (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.
Product Registration Register your purchase
online. See the enclosed Digidesign Registration
Information Card for instructions.
Support and Downloads 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.
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.
Pro Tools Accelerated Videos Watch the series of
free tutorial videos. Accelerated Videos are designed to help you get up and running with
Pro Tools and its plug-ins.
SYNC HD Guide6
Chapter 2: Installation and Configuration 7
chapter 2
Installation and Configuration
Hardware Connections
The following are the primary hardware connections on a SYNC peripheral:
•AC Power
• Serial to a DigiSerial port on a Pro Tools PCI or
PCIe card, or a serial port on the computer
• Clock to Pro Tools audio interfaces
(Loop Sync or Super Clock)
• 9-pin to external machines (requires the
Digidesign MachineControl option)
• Synchronization, including positional and
clock references to and from remote machines
AC Power
SYNC peripheral AC connectors accept a standard AC Power Cable. SYNC peripherals are auto
power-selecting (100V to 240V) and will automatically work with a standard modular cable to
connect to AC power receptacles in any country.
Serial Connections
Serial to Pro Tools Core Card
Pro Tools systems require a serial connection between the SYNC peripheral and an HD Core or
Accel Core card.
To connect a SYNC peripheral to an HD Core or
Accel Core card:
1 Make sure power is off on all equipment.
2 Connect one end of the included serial cable
to the SYNC peripheral Host Serial port.
3 Connect the other end to the DigiSerial port
on your HD Core or Accel Core card.
Do not use the DigiSerial port on any other
Pro Tools HD card in your system.
SYNC HD Guide8
Serial Connections for the SYNC Setup
Software Utility
(Windows Only)
Any system using the optional SYNC Setup software utility requires a serial connection from
the SYNC peripheral to a supported Windows
computer. (For compatibility information, see
“System Requirements and Compatibility” on
page 3.)
To connect a SYNC peripheral to a Windows
computer for the SYNC Setup software utility:
1 Purchase or make the required 9-pin to 8-pin
cable. For wiring details, see “SYNC Setup Software Utility Cable” on page 93.
2 Make sure power is off on all equipment.
3 Connect the SYNC peripheral Host Serial port
to an available serial or COM port on your computer.
4 Restore power to the SYNC peripheral, and re-
start your computer.
Clock for Pro Tools
Audio Interfaces
The SYNC peripheral must be connected to all
Pro Tools|HD interfaces in the Loop Sync chain.
Connecting Loop Sync for Pro Tools|HD
Systems
SYNC peripherals support Loop Sync, and can
serve as Loop Sync Master. Loop Sync is a
dedicated clock loop for synchronizing multiple
Pro Tools|HD interfaces. Loop Sync should only
be used to connect multiple Pro Tools|HD
interfaces.
To connect a SYNC peripheral to Pro Tools|HD
interfaces:
1 Using a BNC cable, connect the Loop Sync
Out of the SYNC peripheral to the Loop Sync In
of your primary Pro Tools|HD audio interface.
2 Using a second BNC cable, connect the SYNC
peripheral Loop Sync In to th e L o o p S y n c O u t o f
your Pro Tools|HD interface.
When using more than one Pro Tools|HD audio
interface, make the SYNC peripheral the first
and last unit in the Loop Sync chain.
The SYNC Setup software utility will
not control the SYNC peripheral
through the DigiSerial port.
Loop Sync connections for SYNC peripheral and 96 I/O
Loop Sync in an expanded Pro Tools|HD system
MTC OUT
HOST SERIAL
AC 100-240V, 50-60HZ, .5A 30W
VIDEO REF
9-PIN OUT 2
9-PIN OUT 1
WORD CLOCK (1x,256x)
VIDEO
L
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C
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S
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A
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S
O
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L
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C
O
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T
IN
OUT
IN
OUT
IN
OUT
LOOP SYNC
INTERNALLY
TERMINATED
BI-PHASE / TACH / GPI / PILOT
SERIAL NUMBER
964530300294856
Loop Sync
SYNC peripheral
96 I/O Interface
MTC OUT
HOST SERIAL
AC 100-240V, 50-60HZ, .5A 30W
VIDEO REF
9-PIN OUT 2
9-PIN OUT 1
WORD CLOCK (1x,256x)
VIDEO
L
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C
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A
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S
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S
O
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L
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C
O
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IN
OUT
IN
OUT
IN
OUT
LOOP SYNC
INTERNALLY
TERMINATED
BI-PHASE / TACH / GPI / PILOT
SERIAL NUMBER
964530300294856
SYNC peripheral
HD Interfaces
Chapter 2: Installation and Configuration 9
Using Legacy Audio Interfaces with
Pro Tools|HD
If you are using a Pro Tools|HD system that includes a legacy audio interface (an 888|24,
882|20, 1622, or 24-Bit ADAT Bridge audio interface), connect the Clock output of the HD system to the Slave Clock Input of the legacy
interface.
To connect a legacy audio interface to an
HD-series system with a SYNC peripheral:
1 Connect the SYNC peripheral to the HD-series
system with Loop Sync as described in the previous steps.
2 Using a BNC cable, connect the Ext Clock Out
of your primary HD-series interface to the Slave
Clock In of your first legacy interface.
3 If you are connecting multiple legacy inter-
faces, daisy-chain their Slave Clock connections
by connecting the Slave Clock Out of the first
interface to the Slave Clock In of the next
interface.
MachineControl
On MachineControl-enabled Pro Tools systems,
SYNC peripherals support limited Serial Deck
Control only.
Serial Deck Control Mode
(Non-Linear Decks Only)
A limited degree of Serial Deck Control mode is
available through a connection to the 9-pin
ports on the SYNC peripheral. For full Serial
Deck Control, a direct serial connection to the
host Pro Tools computer is required.
To connect an external deck to a SYNC peripheral:
Connect a standard 9-pin cable from one of
the 9-pin Out ports on the SYNC peripheral to
the 9-pin connector of the external deck.
As many as two decks can be connected to the
two 9-pin Out ports on the SYNC peripheral.
You can control one deck at a time, switching
between them from within Pro Tools. These
ports on the SYNC peripheral support all MachineControl modes except 9-Pin Remote (Deck
Emulation) mode.
9-Pin Remote Deck Emulation
Mode
9-Pin Remote Deck Emulation mode requires a
direct serial connection to the host computer.
Clock for SYNC I/O, a 96 I/O, and an 888|24 I/O
See the HD Setup Guide for external clock
configuration instructions.
Computer 1
ANALOG OUTPUT ANALOG INPUT AES/EBU OUTPUT AES/EBU INPUT
Computer 2
8 CH Mode
2 x 4 CH Mode
S/PDIFINS/PDIF
OUT
SLAVE CLOCKINSLAVE CLOCK
OUT
78563412785634125/6
7/8
1/2
3/4
5/6
7/8
1/2
3/4
MTC OUT
HOST SERIAL
AC 100-240V, 50-60HZ, .5A 30W
VIDEO REF
9-PIN OUT 2
9-PIN OUT 1
WORD CLOCK (1x,256x)
VIDEO
L
T
C
I
N
A
E
S
I
N
A
E
S
O
U
T
L
T
C
O
U
T
IN
OUT
IN
OUT
IN
OUT
LOOP SYNC
INTERNALLY
TERMINATED
BI-PHASE / TACH / GPI / PILOT
SERIAL NUMBER
964530300294856
Due to performance limitations, this
configuration should be used primarily
with non-linear decks.
For more information on MachineControl
connections and operation, see the
MachineControl Guide.
SYNC HD Guide10
Synchronization and
Time Code Connections to
Machines, Decks, and Other
Devices
The following sections describe connections required for different applications. For more information on time code applications, see
Appendix A, “Additional Synchronization Information.”
Connecting a Video Source
This section describes connections required
when using house video reference (SD or HD).
To have the SYNC peripheral resolve to house
sync:
Connect the house video reference, black
burst, or tri-level sync source to a Video Ref port
on the SYNC peripheral.
To have the SYNC peripheral resolve directly to an
incoming SD video signal:
Connect the SD video signal to the SYNC pe-
ripheral Video In port.
Character Generator for Time Code
Window Dub
SYNC peripherals can generate a time code window dub on SD signals coming into the Video In
port.
To use the SYNC peripheral Time Code Character
Generator to make a window burn:
1 Connect an SD video signal to the SYNC pe-
ripheral Video In port.
2 Connect the SYNC peripheral Video Out port
to other video devices, ensuring that the signal
is terminated by the last device in the chain.
Connecting LTC
SYNC peripherals provide LTC input and output
connectors.
To input LTC to a SYNC peripheral:
Connect the LTC signal from your machine,
synchronizer or other source to the SYNC peripheral LTC In port.
To output LTC from a SYNC peripheral:
Connect the SYNC peripheral LTC Out port to
your external devices.
The Video Ref ports are a non-terminated
loop-through connection. If the second
Video Ref port is not used, then you must
terminate it using the included 75-ohm
BNC terminator.
(SYNC HD Only) Even when you have an
HD video reference signal connected to the
Video Ref connector, you can still connect an
SD video signal to the Video In connector to
provide a window dub.
Chapter 2: Installation and Configuration 11
Connecting Word Clock Devices
SYNC peripherals have Word Clock input and
output ports, which can be used simultaneously.
Use Word Clock when you want the SYNC peripheral to lock to 1x clock from DAT machines,
DA-88s, and similar digital devices.
Pro Tools|HD audio interfaces each have their
own Word Clock inputs, which provide additional clock options and flexibility. Refer to
Pro Tools|HD documentation for details.
To input Word Clock to a SYNC peripheral:
Connect Word Clock from the master Word
clock signal or device to the SYNC peripheral
Word Clock In.
To supply Word Clock from a SYNC peripheral:
Connect the SYNC peripheral Word Clock
Out to the Word Clock input of a digital device.
Mak e sure the SY NC peripheral Word Cloc k Out
port is configured to 1x for Word Clock.
Word Clock contains no positional information. If you want devices to play or record in
sync, you’ll still need to provide them with a
positional reference.
Connecting AES/EBU Devices
To input AES/EBU clock reference to a SYNC
peripheral:
Connect the device’s AES/EBU output to the
SYNC peripheral AES/EBU input.
To supply AES/EBU clock reference from a SYNC
peripheral:
Connect the SYNC peripheral AES/EBU out-
put to the AES/EBU reference input on a DAT
machine or other digital device. (AES/EBU clock
does not support 176.4 kHz or 192 kHz sample
rates.)
Connecting MIDI Time Code
Devices
The SYNC peripheral MTC Out port supplies
MIDI time code, derived from conversion (from
LTC, VITC or Bi-Phase) or from MTC generation,
to synchronize MTC-compatible consoles, sequencers, lighting systems, and other devices.
MIDI time code from the MTC Out port always
matches the time code address displayed on the
SYNC peripheral front panel. To supply MTC
from the SYNC peripheral to another MTC-compatible device, connect the device as described
below.
To connect an MTC-compatible device to receive
MTC from a SYNC peripheral:
Connect the SYNC peripheral MTC Out port
to the appropriate MIDI input on the device, using a standard MIDI cable.
SYNC peripherals can generate time code to
provide positional reference to other devices.
See “Generating & Regenerating Time
Code” on page 49.
SYNC HD Guide12
Pro Tools and MTC
Pro Tools receives MTC from SYNC peripherals
through its connection to the SYNC peripheral
Host Serial port. This signal does not include
standard MIDI time code, but is instead a highquality, proprietary time code signal designed
for Pro Tools. A MIDI Interface is not required
for Pro Tools to receive MTC.
MTC is output whenever the SYNC peripheral is
generating time code. This MTC output can be
muted when time code (LTC) is idle. See “MTC
Output and Idle Muting” on page 56 for details.
Software Installation
The following sections provide instructions to
install software required to use a SYNC peripheral with Pro Tools HD or with the standalone
SYNC Setup software (Windows only).
SYNC Peripherals with
Pro Tools HD
All software required to use SYNC peripherals is
installed with Pro Tools HD software.
Updating SYNC Peripheral
Firmware
SYNC peripheral firmware is updated from the
DigiTest application.
To update SYNC Peripheral firmware:
1 Confirm that the SYNC peripheral is properly
connected to your computer in one of the following ways:
• If it is connected to a Pro Tools system, it
sho uld be connec ted to a Dig iSerial Por t on
an HD Core card.
• (Windows Only) If it is connected to a computer without Pro Tools, it should be connected to the COM 1 port on the computer
with a standard serial cable.
2 Ensure that Pro Tools is not running.
3 Launch the DigiTest application.
4 Click SYNC Firmware.
5 If you are using a DigiSerial Port connection,
make sure you have selected the HD Core card
from the pop-up menu.
The availability of SYNC peripheral features
depends on the version of Pro Tools software
you are running. For details on features
available with your version of Pro Tools, visit
the Digidesign website.
DigiTest SYNC Firmware window
Chapter 2: Installation and Configuration 13
6 Select the type of port connection for the
SYNC peripheral (DigiSerial Port or COM Port).
7 Select the Synchronizer Type that you are up-
dating (SYNC HD or SYNC I/O).
8 Click Begin Update.
9 Locate the firmware file you want to use, and
click Open.
10 Follow the on-screen instructions to power
cycle the SYNC peripheral while holding the Set
button.
11 Wait for the firmware update to complete.
Do not power off the SYNC peripheral while the
update is in progress.
12 When the update is complete, follow any on-
screen instructions.
13 Click Quit to quit the DigiTest application.
SYNC Peripherals with SYNC
Setup Software Utility
(Windows Only)
When using a SYNC peripheral in Standalone
mode, it can be controlled remotely using the
SYNC Setup software utility. Updates to this utility can be downloaded from the Digidesign website (www.digidesign.com).
To install the SYNC Setup software utility on
Windows:
1 Make sure the SYNC peripheral is connected
to a serial or COM port on your computer. See
“Serial Connections for the SYNC Setup Software Utility” on page 8.
2 Insert the installer disc containing the latest
SYNC Setup software, or navigate to its location
if you downloaded an update.
3 Launch the installer and follow the on-screen
instructions.
Emulating a SYNC I/O
(SYNC HD Only)
If you are using a SYNC HD with Pro Tools HD
7.4 or higher, Pro Tools will automatically recognize the SYNC HD.
If you are using a SYNC HD with Pro Tools HD
version 7.3 or lower, set the SYNC HD to emulate a SYNC I/O.
To set a SYNC HD to emulate a SYNC I/O:
1 Press Set, and use the Up and Down switches
to display “Device ID” (dEuicE id).
2 Press Set. The LED Time Code Display shows
shows the current Device ID for the unit:
“SYNC HD” (SYnc HD) or “SYNC I/O”
(SYnc IO).
3 Press the Up or Down switches to toggle the
Device ID to read “SYNC I/O” (SYnc IO).
4 Press Set.
SYNC HD Guide14
Configuring a SYNC
Peripheral from Pro Tools HD
Pro Tools HD software provides configuration
controls that establish communication between
Pro Tools and the SYNC peripheral.
Loop Sync
SYNC peripherals support Digidesign’s Loop
Sync feature for connecting Pro Tools|HD interfaces. A SYNC peripheral can be configured as
the Clock Source (Loop Master) in order to provide Loop Sync master clock to the rest of your
Pro Tools|HD interfaces.
Pro Tools HD automatically recognizes if a
SYNC peripheral is connected to the DigiSerial
port when Pro Tools is launched. When
Pro Tools recognizes the SYNC peripheral, it automatically configures the Device and Port settings for it in the Peripherals dialog.
To check communication between Pro Tools and a
SYNC peripheral:
1 After installing Pro Tools and connecting the
SYNC peripheral, launch Pro Tools.
2 Choose Setup > Peripherals, and click the Syn-
chronization tab.
3 Under Digidesign Synchronization Device, se-
lect Enable SYNC HD (for a SYNC HD) or Enable
SYNC Peripheral (for a SYNC I/O).
Pro Tools scans the DigiSerial port and checks
the SYNC peripheral firmware.
If you need to update your firmware, use the
DigiTest application installed with Pro Tools.
See “Updating SYNC Peripheral Firmware” on
page 12.
For system requirements and Loop Sync
connection instructions, see Chapter 1,
“Introduction.”
SYNC peripheral settings in the Peripherals dialog
Chapter 2: Installation and Configuration 15
Configuring a SYNC Peripheral in
the Session Setup Window
When a SYNC peripheral is connected through
Loop Sync and enabled in the Peripherals dialog, its settings become available in the
SYNC Setup and Time Code Settings sections of
the Session Setup window.
Clock Source
When connected and configured in the Loop
Sync chain, the SYNC peripheral appears along
with any Pro Tools|HD interfaces in the Clock
Source pop-up menu, located in the Session
Setup window.
The Clock Source can be any device in the Loop
Sync chain. This lets you use any digital input
source available on any Pro Tools|HD interface
(including the SYNC peripheral) simply by selecting that device and source from the
Clock Source pop-up menu.
Clock Reference
The selected Clock Source device determines
your choices for clock reference.
When Clock Source is a SYNC peripheral
When a SYNC peripheral is set to be the Clock
Source, it is the Loop Master. Clock, Positional
Reference, and Video Format selectors become
active in the SYNC Setup section of the Session
Setup window.
SYNC peripheral Clock Reference choices include:
• Internal/VSO
•Video In
•Video Reference (SD)
• Video Reference (HD) (SYNC HD Only)
•LTC
• Bi-Phase
• Pilot Tone
•AES/EBU
• Word Clock
• Loop Sync
Session Setup window
See the Pro Tools Reference Guide for more
information on the Session Setup Window.
SYNC peripheral selected as Clock Source in the
Session Setup window
Session
settings
SYNC
Setup
Time Code
Settings
Clock Source
Clock Source
SYNC Setup controls in the Session Setup window
SYNC HD Guide16
When the SYNC peripheral is not the selected
Clock Source device, the Clock Reference menu
in the SYNC Setup section switches to Loop
Sync.
To choose a Clock Reference:
Select an available clock source from the
Clock Reference pop-up menu in the Session
Setup window.
The Clock Source pop-up menu follows your selection of the SYNC peripheral for Clock Reference by automatically switching to the SYNC
setting. (You can also choose the SYNC peripheral as Clock Source first, then select a Clock Reference.)
To choose a different Loop Sync device as the
Clock Source:
Select a different Loop Sync device and Clock
Source from the Clock Source pop-up menu in
the Session Setup window.
When Clock Source is an HD I/O
When a 192 I/O, 192 Digital I/O, 96 I/O or
96i I/O is providing the Clock Source, it will be
the Loop Master. Clock Source options are available directly from the Clock Source menu, based
on the configuration of that interface in the
Hardware Setup dialog. Choices can include
AES, S/PDIF, Optical, or Word Clock.
For LTC clock reference, multiple choices
are available from the LTC sub-menu. See
“LTC and Clock Reference” on page 39.
Choosing a Clock Reference
Choosing a Clock Source (96 I/O shown)
See the HD Setup Guide for more information
on configuring audio interfaces.
Chapter 2: Installation and Configuration 17
Ref Present, Locked and Speed Cal
Indicators
The Ref Present, Locked and Speed Cal indicators
in the Session Setup window display synchronization status of the SYNC peripheral. The Locked
and Speed Cal indicators mirror the same LEDs
on the front panel.
Ref Present The Ref Present indicator lights
when a valid video signal is present on the
Video Ref connectors.
Locked The Locked indicator stays lit when the
SYNC peripheral is locked to the selected clock
reference. The Locked indicator flashes if the selected clock reference source is missing or out of
lockable frequency range.
Speed Cal The Speed Cal indicator lights to indi-
cate the status of the clock reference:
• Yellow Solid: SYNC HD is locked and that
the clock reference is within 0.025% of the
expected rate
• Yellow Flashing Fast: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% faster than the expected rate
• Yellow Flashing Slow: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% slower than the expected rate
• Red Flashing Fast: SYNC HD is locked, but
the clock reference is more than 4% faster
than the expected rate
• Red Flashing Slow: SYNC HD is locked, but
the clock reference is more than 4% slower
than the expected rate
• Unlit: SYNC HD is not locked to the chosen
clock reference
Positional Reference
To select a positional reference:
Select a positional reference from the
Positional Reference pop-up menu, located in
the SYNC Setup section.
Positional Reference choices include:
• Auto LTC/VITC
•LTC
•VITC
• Serial Time Code
• Bi-Phase
Sample Rate
The SYNC peripheral sample rate is determined
by the current Pro Tools session sample rate. In
Standalone mode, the SYNC peripheral sample
rate can be selected with the SYNC Setup software utility (Windows only), or using the front
panel switches. Current sample rate is indicated
by the Sample Rate LEDs.
When used with Pro Tools HD, SYNC peripherals supports all available sample rates. Setting
the session sample rate in the Playback Engine
or Hardware Setup dialogs also sets the SYNC peripheral to that sample rate.
Ref Present, Locked and Speed Cal Indicators
SYNC HD Guide18
Audio and Video Pull Up and Pull Down
Pro Tools provides up to 4.167% pull up, and
4.0% pull down choices. When working with a
Movie track containing video, a separate Video
Pull-Down menu becomes available in the Session Setup window, allowing you to apply standard or non-standard pull factors to audio and
video separately. This lets Pro Tools synchronize
to most supported SMPTE frame rates and formats.
Time Code Rate
While using Pro Tools, the SYNC peripheral
Time Code Rate automatically follows the session Time Code Rate setting. Session Time Code
Rate is set in the Session Setup window.
To set the session Time Code Rate:
Choose a rate from the Time Code Rate pop-up
menu in the Session Setup window.
In Standalone mode, the SYNC peripheral Time
Code Rate can be set using the SYNC Setup software utility (Windows only), or from the front
panel.
Video Ref Format
SD Video Reference
Choose PAL or NTSC format for the session from
the Video Ref Format pop-up menu in the Session
Setup window. If the session already has video,
the format will be set automatically.
HD Video Reference
Choose the video reference rate for the session
from the Video Ref Format pop-up menu in the
Session Setup window. If the session already has
video, the format will be set automatically.
With Pro Tools HD, 4.167% pull up and
4.0% pull down are not available in
176.4 kHz and 192 kHz sessions.
Choosing a session Time Code Rate
Choosing an SD Video Format
Choosing an HD Video Format
Chapter 2: Installation and Configuration 19
The following video reference rates are available
in the Video Ref Format pop-up menu:
• Slow PAL - 23.976
•Slow PAL -24
• 720p - 23.976
• 720p - 24
• 720p - 25
• 720p - 29.97
• 720p - 30
• 720p - 50
• 720p - 59.94
• 720p - 60
• 1080i - 47.95/1080psf - 23.976
• 1080i - 48/1080psf - 24
• 1080i - 50/1080psf - 25
• 1080i - 59.94/1080psf - 29.97
• 1080i - 60/1080psf - 30
• 1080p - 23.976
• 1080p - 24
• 1080p - 25
• 1080p - 29.97
• 1080p - 30
• 1080p - 50
• 1080p - 59.94
• 1080p - 60
Video In Format Settings at
HD Video Reference Rates
(SYNC HD Only)
When the Clock Reference is set to Video Reference (HD), SYNC HD automatically sets the
Video In format (NTSC or PAL) appropriate for
the selected Video Reference rate, as shown in
the following table.
With 24-frame and 48-frame rates only, a popup menu lets you set the Video In Format.
Video Reference (HD) Rate Video In Format
Slow PAL - 23.976 NTSC
Slow PAL - 24 PAL
720p - 23.976 NTSC
720p - 24 PAL (NTSC avail)
720p - 25 PAL
720p - 29.97 NTSC
720p - 30 NTSC
720p - 50 PAL
720p - 59.94 NTSC
720p - 60 NTSC
1080i - 47.95/1080psf - 23.976 NTSC
1080i - 48/1080psf - 24 PAL (NTSC avail)
1080i - 50/1080psf - 25 PAL
1080i - 59.94/1080psf - 29.97 NTSC
1080i - 60/1080psf - 30 NTSC
1080p - 24 PAL (NTSC avail)
1080p - 25 PAL
1080p - 29.97 NTSC
1080p - 30 NTSC
1080p - 50 PAL
1080p - 59.94 NTSC
1080p - 60 NTSC
SYNC HD Guide20
Clock Reference, Video Ref, and
Video In Settings when Importing
Avid Video
When you import Avid video media into a session, Pro Tools automatically sets the Clock Reference, Video Reference rate, and Video In format appropriate for the imported media.
MachineControl Configuration
If you are using Digidesign MachineControl, do
the following to establish basic communication.
To configure MachineControl:
1 Choose Setup > Peripherals, and click the Syn-
chronization tab.
2 In the Synchronization page, make sure the
SYNC peripheral is the current Synchronization
device, and DigiSerial is the selected port.
3 Click the Machine Control tab.
4 Enable and configure options for
9-pin Machine Control or 9-pin Remote.
Selecting the Transport Master
The Transport Master selector in Pro Tools lets
you select the device that will be controlled by
the Pro Tools transport. Choices include
Pro Tools and any other devices or modes you
have enabled in the Synchronization or Machine Control tabs of the Peripherals dialog.
Software Configuration for
the SYNC Setup Software
Utility
(Windows Only)
To configure the SYNC Setup software on
Windows:
1 Make sure the SYNC peripheral is connected
to your computer according to the instructions
in “Serial Connections” on page 7.
2 Launch the SYNC Setup software utility.
3 Choose SYNC Setup > Preferences from the
menu in the upper left corner of the SYNC Setup
application.
4 If not already selected, choose the appropriate
serial port for the SYNC-to-computer connection.
5 Close the Preferences window. The SYNC
Setup software utility should now show that it
recognizes the SYNC peripheral in the information display section.
Pro Tools Transport master
Chapter 2: Installation and Configuration 21
Troubleshooting
Status LEDs
The Locked and Speed Cal status LEDs on the
SYNC peripheral front panel and in the Session
Setup window may help you isolate potential
problems.
Ref Present Indicator
The Ref Present indicator in the Session Setup
window indicates whether or not the SYNC peripheral is receiving valid Video Ref signal. If
this indicator is not lit, check your video connections and termination status of the Video Ref
connectors on the SYNC peripheral.
Incoming Time Field
The Incoming Time field in the Session Setup window indicates whether or not the SYNC peripheral is receiving positional reference. If this field
appears to be inactive when inputting time code
to the SYNC peripheral, check your hardware
device settings, serial connection to your computer, and your software settings.
Lost Communication
If Pro Tools loses communications with the
SYNC peripheral, a dialog appear asking you
whether you want to switch to MTC (if available) or continue trying to locate the SYNC peripheral. If you see a “lost communication” dialog, check power, DigiSerial, and other
connections.
Lost Communication Dialog
The Lost Communication dialog provides the
following options for re-establishing synchronization when communication with the SYNC peripheral stops:
Use MTC Click this button if the SYNC peripheral is unavailable, to switch to any currently
connected MIDI interface for MTC synchronization. This option requires a compatible device
that supports MTC conversion, and that is already connected to your CPU and enabled.
Keep SYNC Click this to leave the session configured for the SYNC peripheral, or to continue
searching for the SYNC peripheral to re-establish lost communication.
Synchronization Accuracy
If you are noticing drift or lack of accurate synchronization between your devices, check the
following:
If your system locks up in the wrong place,
make sure you have set the correct frame rate
and format (NTSC or PAL) on all your devices.
If your system locks up in the correct location,
but drifts, check your clock signals and settings.
Ref Present indicator (Session Setup window)
Incoming Time Code display (Session Setup window)
Video Ref Present indicator
Incoming Time Code
SYNC HD Guide22
Chapter 3: SYNC Peripheral Hardware and Software 23
chapter 3
SYNC Peripheral Hardware and Software
SYNC Peripheral Front Panel
Controls and Displays
All SYNC peripheral local controls are on the
front panel. For information on back panel connectors and setup, see Chapter 2, “Installation
and Configuration.”
Power Switch
When the SYNC peripheral power switch is
pressed in, power is on; when the switch is out,
power is off.
The LED ring around the power switch is orange
while the SYNC peripheral is powering up, or
while firmware is being updated. The LED ring is
green when the SYNC peripheral is ready for
use.
Clock Reference Switch and LEDs
This switch selects the SYNC peripheral clock
reference, as indicated by the Clock Reference
LEDs. Available clock reference inputs include:
•VideoRef
• SYNC HD: (Green = SD, Yellow = HD)
•SYNCI/O: SD only
•VideoIn
• LTC (Linear Time Code)
• Digital
•SYNCHD: Word/AES
(Green = Word, Yellow = AES/EBU)
• SYNC I/O: Digital (Word or AES/EBU)
• Pilot
•Bi-phase/Tach
• Internal/VSO
• Loop Sync
Figure 1. SYNC HD front panel
Power
Sample Rate
Clock Reference
Switch
Clock Reference
Loop
LEDs
Master
LEDs
Generator/Parameter
Controls
Time Code
Display
Switch
Positional Reference
LEDs
Positional
Drop Frame
Frame Rate
Switch
Reference
LED
LEDs
Frame
Rate
Status LEDs
SYNC HD Guide24
Loop Master Indicator
When lit, this LED indicates that the SYNC peripheral is the Pro Tools Loop Master device.
Sample Rate LEDs
These green or yellow LEDs show the current
SYNC peripheral sample rate. Pull Up and Pull
Down are available for all sample rate settings,
indicated by the corresponding LED. Table 4
(below) shows the actual sample rates when
pulled up or down.
Generator/Parameter Controls
These four switches provide direct access to
many SYNC peripheral functions, including
time code generator settings, PAL/NTSC selection, sample rate and more. The Time Code LED
display shows the current mode, selected parameter, or setting.
Time Code Display
This 7-segment, multifunction LED is the SYNC
peripheral time code and parameter display.
Time Code The current positional reference (internal or external), is displayed in hours:minutes:seconds:frames. Odd/even field distinction
is indicated using a decimal point to the right of
the frames display. A lit decimal point to the
right of frames indicates an even-numbered
field; no decimal point indicates an odd-numbered field. When the SYNC peripheral is in
Auto Switch LTC/VITC mode, the decimal point
to the right of “minutes” illuminates.
The SYNC peripheral Time Code Display always
displays actual incoming time code, regardless
of any External Time Code Offsets settings that
are applied in Pro Tools.
Table 4. Sample Rates at Pull Up and Pull Down Settings
Pull Up/Down
Sample Rate
44100 48000 88200 96000 176400 192000
+4.1667%
and +0.1%
45983 50050 91967 100100 n/a n/a
+4.1667% 45938 50000 91875 100000 n/a n/a
+4.1667%
and –0.1%
45892 49950 91783 99900 n/a n/a
+0.1% 44144 48048 88288 96096 176576 192192
–0.1% 44056 47952 88112 95904 176224 191808
–4.0% and
+0.1%
42378 46126 84757 92252 n/a n/a
–4.0% 42336 46080 84672 92160 n/a n/a
–4.0% and
–0.1%
42294 46034 84587 92068 n/a n/a
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