DigiDesign ADAT Bridge I/O User Manual

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Digidesign

ADAT Bridge I/O Guide

Digidesign Inc.

3401-A Hillview Avenue

Palo Alto, CA 94304 USA

tel: 650·842·7900

fax: 650·842·7999

Technical Support (USA)

650·842·6699 650·856·4275

Product Information (USA)

650·842·6602 800·333·2137

Fax on Demand (USA)

1-888-USE-DIGI (873-3444)

World Wide Web

www.digidesign.com

Digidesign FTP Site

ftp.digidesign.com

This User’s Guide is copyrighted ©2000 by Digidesign, a division of Avid Technology, Inc. (hereafter “Digidesign”), with all rights reserved. Under copyright laws, this manual may not be duplicated in whole or in part without the written consent of Digidesign.

DIGIDESIGN, AVID and PRO TOOLS are trademarks or registered trademarks of Digidesign and/or Avid Technology, Inc. All other trademarks are the property of their respective owners.

All features and specifications subject to change without notice.

PN 932707969-00 REV A 08/00

Communications & Safety Regulation Information

Compliance Statement

The model ADAT Bridge I/O complies 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.

Communications Statement

This equipment has been tested to comply with the limits for a Class A digital device. Changes or modifications to this product not authorized by Digidesign, Inc., could void the Certification and negate your authority to operate the product. This product was tested for CISPR compliance under conditions that included the use of peripheral devices and shielded cables and connectors between system components. Digidesign recommends the use of shielded cables and connectors between system components to reduce the possibility of causing interference to radios, television sets, and other electronic devices.

Safety Statement

This equipment has been tested to comply with USA and Canadian safety certification in accordance with the specifications of UL Standards; UL813 and Canadian CSA standard; CSA C22.2 No.1-M90. Digidesign Inc., has been authorized to apply the appropriate UL & CUL mark on its compliant equipment.

Important Safety Instructions

When using electric or electronic equipment, basic precautions should always be followed, including the following:

• Read all instructions before using this equipment.

• To avoid the risk of shock, keep this equipment away from rain water, and other moisture. Do not use this equipment if it is wet.

• The equipment should only be connected to the correct rating power supply as indicated on the product.

• Do not attempt to service the equipment. There are no user-serviceable parts inside. Please refer all servicing to authorized Digidesign personnel.

• Any attempt to service the equipment will expose you to a risk of electric shock, and will void the manufacturer’s warranty.

• The product should be connected only to the correct power supply as indicated on the product.

contents

Chapter 1. Introducing the 24-Bit ADAT Bridge I/O

About This Guide System Requirements

Chapter 2. Connecting Your Studio

About 8-Channel Groups Primary Connections (Bridge I/O to Pro Tools and ADAT) Synchronization Connections

Chapter 3. Using Your System

Powering Up Your System Basic Settings Transferring Audio Between ADAT and Pro Tools (Unsynchronized) Recording Tracks from Pro Tools to ADAT (Unsynchronized) Configuring Sync Transferring Audio Between ADAT and Pro Tools (Synchronized)

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Chapter 4. Using the ADAT Bridge I/O in Standalone Mode

ADAT Channels Transferred Using Standalone Mode

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Chapter 5. Synchronizing Pro Tools and ADAT with an Alesis BRC

Hardware Setup Software Configuration Using MIDI Machine Control (MMC) with a BRC

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Chapter 6. Synchronizing Pro Tools and ADAT Using a JL Cooper DataSync2

Hardware Setup Software Configuration

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Contents

iii

Chapter 7. Synchronizing Pro Tools and ADAT using the MTP AV

Hardware Setup Software Configuration

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Chapter 8. Synchronizing Pro Tools and ADAT Using a Digital TimePiece

Hardware Setup Software Configuration

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Chapter 9. Synchronizing Pro Tools and ADAT using an Opcode Studio 64XTC

Hardware Setup Software Configuration

Chapter 10. Connecting Pro Tools to an ADAT-Compatible Digital Mixer

Appendix A. ADAT Bridge I/O Technical Specifications

Analog Performance Connectors Miscellaneous Physical Specifications

Index

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ADAT Bridge I/O

chapter 1

Introducing the 24-Bit ADAT Bridge I/O

The Digidesign ADAT Bridge I/O combines the power and ﬂexibility of Pro Tools™ disk-based digital audio production system with the convenience and affordability of Alesis ADAT®, ADAT-compatible modular digital multitracks (MDMs), and ADAT optical interface-equipped digital mixing consoles.

The ADAT Bridge I/O can be used with either the Macintosh or Windows version of Pro Tools TDM. See “System Requirements” on page 3 for supported platforms and hardware.

ADAT Bridge I/O Features

• 16 discrete channels of digital input and output for transferring digital audio between Pro Tools and ADAT optical interface-equipped devices.

• 2-channel 24-bit D/A converters for superior analog monitoring.

• S/PDIF and AES/EBU digital inputs and outputs.

• Slave Clock input and output, and Word Clock output for synchronizing and resolving your Pro Tools/ADAT system to an external synchronization source using Digidesign or third-party synchronization peripherals.

• Up to ﬁve ADAT Bridge I/Os can be used with Pro Tools for a maximum of 72 channels of I/O.

• The ADAT Bridge 24 I/O allows you to use an ADAT-compatible device as an audio interface for Pro Tools by using its A/D and D/A converters.

Capabilities

Each ADAT Bridge I/O Interface allows you to digitally transfer up to 16 tracks/channels simultaneously from ADAT into Pro Tools for:

• Non-linear editing

• Plug-In effects processing

• Digital mixing with automation

Each ADAT Bridge I/O allows you to Digitally transfer up to 16 tracks/channels simultaneously from Pro Tools to ADAT to:

• Replace original tracks with edited tracks

• Transfer Pro Tools tracks to another Pro Tools/ADAT system on affordable S-VHS tape media

• Back up Pro Tools tracks on S-VHS tape

Chapter 1: Introducing the 24-Bit ADAT Bridge I/O

With an optional synchronization peripheral, you can use the ADAT Bridge I/O to:

• Perform synchronized recording and playback.

• Combine tape-based tracks and MIDI instruments in the Pro Tools TDM environment for mix automation and effects processing.

The ADAT Bridge allows you to interface with digital mixing consoles equipped with ADAT lightpipe connections (using the ADAT Optical standard at up to 24-bit resolution).

The ADAT Bridge I/O can also be used as a standalone digital converter (S/PDIF or AES/EBU-to-ADAT optical). This capability allows you to digitally transfer audio from DAT or CD to ADAT without having to power on your computer or launch Pro Tools.

About This Guide

ADAT and ADAT-Compatible Devices

The term “ADAT” describes any ADAT-optical interface equipped device. This includes ADAT-compatible modular digital multitrack recorders (MDMs), sound cards, A/D or D/A converters, and digital consoles that are equipped with an ADAT optical interface.

Conventions Used in This Guide

Digidesign guides use the following conventions to indicate menu choices and key commands:

Convention Action

File > Save Session Choose Save Session

from the File menu

Control+N Hold down the Control

key and press the

Option-click Hold down the Option

key and click the mouse button

key

This guide explains everything you need to know in order to successfully use your Digidesign ADAT Bridge I/O with Pro Tools and ADAT-compatible devices.

To get the most out of your hardware, you should have a basic working knowledge of your ADAT or ADAT-compatible device, and know how to format tapes, how to record and play back audio, and other common ADAT functions.

ADAT Bridge I/O

The following symbols are used to highlight important information:

✽

User Tips

most from your system.

▲

Important Notices

could affect your session data or the performance of your system.

☞

Cross References

in other Digidesign Guides.

are helpful hints for getting the

include information that

point to related sections

System Requirements

The Digidesign ADAT Bridge I/O requires:

• A Pro Tools 24 MIX or MIXplus, Pro Tools 24 or Pro Tools III system, on an appropriate Mac OS or Windows NT CPU.

• Version 4.3 or higher of the Pro Tools software and the DigiSystem INIT.

• An external mixing console and monitoring system (ampliﬁer, speakers, headphones, etc.).

• One or more ADAT or ADAT-compatible devices.

ADAT Firmware Requirements

To use your ADAT with the ADAT Bridge I/O, it must have the following ﬁrmware version. If you are not sure of the ﬁrmware version of your ADAT or ADAT-compatible recorder, please contact the manufacturer or your professional audio dealer.

• The original ADAT should be equipped with ﬁrmware version 4.03 or higher.

• The ADAT XT should be equipped with ﬁrmware version 1.04 or higher.

• The ADAT M20 should be equipped with ﬁrmware version 1.0 or higher.

• The ADAT XT20 should be equipped with ﬁrmware version 2.0 or higher.

• The ADAT LX20 should be equipped with ﬁrmware version 2.0 or higher.

and associated versions of DAE

Chapter 1: Introducing the 24-Bit ADAT Bridge I/O

ADAT Bridge I/O

chapter 2

Connecting Your Studio

This chapter covers connecting the 24-bit ADAT Bridge I/O to your Pro Tools system and to an ADAT-compatible device. There are two types of connections that can be made:

Primary System Connections (all systems)

Connecting the ADAT Bridge I/O to

◆

ADAT or ADAT-compatible devices.

Connecting the ADAT Bridge I/O to the

◆

Pro Tools system.

Synchronization Connections (optional)

This section includes instructions for making synchronization connections.

Before You Begin

• Make sure your Pro Tools system is properly installed.

• Turn off your computer, hardware interfaces, and ADATs. Making connections while power is on can damage your system.

These cables are provided with your ADAT Bridge I/O:

• One (1) AC power cable

• One (1) 60-pin to 50-pin interface cable

• Two (2) ADAT optical cables

• One (1) BNC slave clock cable

The optical cables included with your ADAT Bridge I/O are 2 feet in length. Optical cables of up to 30 feet can be used with your system as long as they are high-quality, Alesis-approved cables.

Optical cable

Cables included with ADAT Bridge I/O

The enclosed BNC cable is the suggested maximum length for Word Clock connections to the ADAT Bridge. It is possible to utilize longer BNC cables, but doing so can introduce clock problems that will result in clicks, pops and other digital noise on channel 1 of your system.

BNC cable 60-pin to 50-pin

interface cable

Chapter 2: Connecting Your Studio

About 8-Channel Groups

The ADAT Bridge I/O provides 16 channels of ADAT digital I/O, split into two separate 8-channel groups.

Inputs and outputs from these groups are assigned in Pro Tools as A1– A8 (for the inputs and outputs on Group A), and B1–B8 (for the inputs and outputs on Group B).

ADAT Bridge I/O

ADAT Bridge I/O Front Panel

12345

Figure 1. ADAT Bridge I/O front panel

1. Power Switch

This switch applies power to the Digidesign ADAT Bridge I/O. The “I” position is on. The “O” position is off.

2. Sync Mode LEDs

These LEDs indicate which master sample clock reference is currently being used by the ADAT Bridge I/O. The ADAT Bridge I/O’s 16 inputs and outputs are divided into 2 discrete groups: Group A (channels 1–8) and Group B (channels 9–16).

Internal

When lit, this LED indicates that the ADAT Bridge I/O sample clock reference is its own internal clock. The internal clock frequency is determined by the Sample Rate setting in the Pro Tools Hardware dialog or Session Setup window. Internal sync mode is used whenever the ADAT Bridge I/O’s sample rate clock is not being determined by an external source such as an ADAT, DAT machine, or synchronization peripheral.

ADAT

When continuously lit, the ADAT Bridge I/O sample rate is being slaved to an ADAT (the ADAT Bridge I/O is using the ADAT as its master clock reference). This parameter is set by choosing ADAT Optical in the Sync Mode pop-up in the Pro Tools Hardware dialog or Session Setup window. If this LED is flashing, it indicates that the ADAT Bridge I/O is either not receiving a signal from the ADAT or that the signal is invalid for some reason.

Digital

When continuously lit, the ADAT Bridge I/O is being slaved to an external AES/EBU or S/PDIF signal (the ADAT Bridge I/O is using the signal as its master clock reference). This parameter is set by choosing Digital in the Sync Mode pop-up in the Pro Tools Hardware dialog or Session Setup window. This is the setting typically used for transferring material from DAT machines or other digital devices into Pro Tools. If this LED is flashing, it indicates that the ADAT Bridge I/O is either not receiving an AES/EBU or S/PDIF signal or that the signal is invalid for some reason. This could occur

Chapter 2: Connecting Your Studio

if, for example, you have chosen AES/EBU as your digital format and are actually receiving S/PDIF.

Slave

When continuously lit, this LED indicates that the ADAT Bridge I/O master sample clock reference is being determined by an external device connected to the Slave Clock In port on the ADAT Bridge I/O’s rear panel, typically another Digidesign Audio Interface or an eternal sync peripheral. The ADAT Bridge I/O will automatically switch to Slave mode when a valid slave clock signal is connected to its Slave Clock Input port and the ADAT Bridge I/O is set for internal sync in the Pro Tools Hardware Setup dialog or Session Setup window.

This allows you to record eight channels audio from ADAT on group A, and two channels of digital input on Group B. If you wish to record a full 16 channels of audio from ADAT, Channel 1–2 input must be set to ADAT for both Group A and Group B.

4. Sample Rate

These LEDs indicate the current sample rate of Group A and Group B of the ADAT Bridge I/O. If these LEDs are flashing, it indicates that the currently selected sample rate does not match the sample rate currently being received by the ADAT Bridge I/O.

5. Digital Format

3. Channel 1–2 Input

This LED indicates the source of input to Pro Tools for channels 1–2 of Group A and/or Group B. When the ADAT LED is lit, input channels 1–2 in Pro Tools are currently selected to receive digital input via the ADAT Bridge I/O’s optical port. When the Digital LED is lit, it indicates that channels 1–2 in Pro Tools are currently selected to receive digital input via its AES/EBU or S/PDIF ports. When this is set, ADAT optical channels 3–8 are still sent to Pro Tools. This parameter is set using the Ch 1–2 Input pop-up in the Pro Tools Hardware dialog or Session Setup window.

The AES/EBU or S/PDIF inputs can be routed to Channels 1–2 of either Group A or Group B. This gives you the flexibility to set Channel 1–2 to ADAT on Group A, and Channel 1–2 input to digital on Group B.

ADAT Bridge I/O

These LEDs indicate which digital port (AES/EBU or S/PDIF) is currently being used for digital input on channels 1–2 of Group A or Group B.

ADAT Bridge I/O Back Panel

123 4 5 67789 10

Figure 2. ADAT Bridge I/O Back Panel

1. Analog Outputs

These are balanced TRS (tip-ring-sleeve) connectors that carry audio output on channels 1–2. By routing a Pro Tools output mix to channels 1–2 you can then monitor an entire mix via these outputs. The ADAT Bridge I/O’s analog outputs feature 24-bit D/A convertors for superior audio quality. These outputs are softwareswitchable between –10 dBV and +4 dBu operation via the Other Options section of the Pro Tools Hardware dialog. Output levels default to –10 dBV when the ADAT Bridge I/O is used in standalone mode.

2. Optical In/Out #1

These ports are designed to send and receive 8 channels of digital audio to and from an ADAT’s optical ports. The Optical #1 port carries data for Group A, the ﬁrst eight channels (1–8) of the ADAT Bridge I/O.

3. Optical In/Out #2

Similar to “Optical In/Out #1, except the Optical #2 port carries data for Group B, the second eight channels (9–16) of the ADAT Bridge I/O.

4. Computer A

This port is used to make connections between the Digidesign ADAT Bridge I/O and a Pro Tools MIX, MIXplus, d24, DSP Farm, or Disk I/O card installed inside your computer. The Computer A port carries data for the ﬁrst eight channels (1–8) of audio between the ADAT Bridge I/O and Pro Tools.

5. Computer B

Similar to Computer A, except the Computer B port carries data for the second eight channels (9–16) of audio between the ADAT Bridge I/O and Pro Tools.

▲

Both the optical inputs and optical outputs must be connected to your ADAT for your system to work properly.

6. AES/EBU In/Out

These are balanced, three-conductor XLR connectors that accept and output a 24-bit AES/EBU digital data stream. Output is

Chapter 2: Connecting Your Studio

continuously active on the AES/EBU jacks, carrying audio routed to outputs 1–2 in Pro Tools.

other sync device that requires a separate word clock input for properly resolved sync.

7. S/PDIF In/Out

These are unbalanced, two-conductor RCA jacks that accept and output a 24-bit S/PDIF digital data stream. Output is continuously active on the S/PDIF jacks, carrying audio routed to outputs 1–2 in Pro Tools. To avoid RF interference during S/PDIF transfers, we recommend that you use 75 ohm coaxial cable and don’t exceed a maximum cable length of 10 meters.

8. Slave Clock In/Out

The Slave Clock Out jack is a standard BNC connector that outputs a 256x Super Clock signal for slaving additional ADAT Bridge I/Os, audio interfaces, or synchronization peripherals.

The Slave Clock In jack is a standard BNC connector designed to receive a 256x Super Clock signal from another ADAT Bridge I/O, another Digidesign audio interface, or a synchronization peripheral that passes Slave Clock, such as the USD. Because crucial timing data is passed via these ports, you should use high-quality, 75 ohm RG59 cables for making connections and keep total cable lengths to less than 3 meters between all connected devices.

9. Word Clock Out

10. AC Power Input

This connector accepts a modular AC power cable. The Digidesign ADAT Bridge I/O is auto power-selecting (100V–240V) and will work with a standard modular cable when connected to AC power receptacles in any country.

Primary Connections (Bridge I/O to Pro Tools and ADAT)

This section covers the basic connections between the ADAT Bridge I/O, your Pro Tools system, and ADAT devices.

Optical Connections

Quick Connections

For One ADAT:

◆

• ADAT Bridge Optical #1 Out to ADAT #1 Optical Input.

• ADAT Bridge Optical #1 In to ADAT #1 Optical Output.

◆

For Two ADATs:

• Other connections are same as instructions for one ADAT, but adding ADAT Bridge Group B Optical In/Out to ADAT #2 Optical Out/In.

The Word Clock Out jack is a standard BNC-type connector that outputs a word clock signal. This jack is typically used to connect the ADAT Bridge I/O to a BRC or

ADAT Bridge I/O

✽

If you use a BRC or other device to synchronize your ADATs, refer to “Synchronization Connections” on page 15 for additional instructions on integrating the ADAT Bridge I/O into your system.

If you are using two ADATs with your ADAT Bridge I/O (16-channel mode), make the same In/Out connections from the Optical #2 In/Out ports on the Digidesign ADAT Bridge I/O to the Digital In/Out ports on ADAT #2.

The following sections provide optical connection instructions for systems with one or two ADATs.

▲

The red light you may see at the end of a connected ADAT optical cable is not a laser, so it will not damage your eyes.

To make optical cable connections between the ADAT Bridge I/O and ADAT devices:

Connect one of the provided optical cables to the jack labeled Optical #1 Out on the Digidesign ADAT Bridge I/O, and connect the other end to the Digital Input on your primary (master) ADAT. Avoid touching the ends of the cable to prevent oils from your skin from getting on the lenses.

Connect the second ﬁber optic cable to the jack labeled Optical #1 In on the Digidesign ADAT Bridge I/O and attach the other end to the Digital Output on your ADAT.

ADAT 1

Alesis 9-pin sync cable

ADAT 2

optical cables

Group A

optical cables - Group B

ADAT Bridge I/O

Optical connections between an ADAT Bridge and two ADATs (ADAT 9-pin Sync connection also shown)

About ADAT Sync 9-pin

Also shown in the above diagram is the ADAT 9-pin sync cable (from the master ADAT Sync Out to the slave ADAT Sync In), required for proper clocking between your ADATs. Your ADAT User’s Guide assumes that if you have two ADATs you already have their Sync cables connected in this manner and operating correctly. Refer to your ADAT manual if you need more information.

optical cable from ADAT out

to ADAT Bridge in

optical cable from ADAT Bridge out

to ADAT in

Optical connections between a single ADAT Bridge I/O and a single ADAT

Chapter 2: Connecting Your Studio

Pro Tools Interface Connections

Quick Connections

For One ADAT (8-channel mode):

◆

• ADAT Bridge Computer A to interface port A on primary Pro Tools audio card (MIX, d24 or Disk I/O), or the I/O port on the Pro Tools audio card in the highest available slot.

Two ADATs (16-channel mode):

◆

• Same as for one ADAT, plus additional 50-pin interface cable (not included) from ADAT Bridge I/O Computer B port to primary Pro Tools interface Port B (if using the optional Y-cable), or to the interface port on the next highest Pro Tools I/O-capable card.

The following section provides more detailed interface connection instructions for systems with one or two ADATs.

Single-ADAT systems (8-channel operation)

This basic conﬁguration allows 8-channel transfer between Pro Tools and ADAT, but has no provisions for synchronizing playback or recording of the two devices. You will have to manually start and stop recording/playback of Pro Tools and ADAT independently. Unsynchronized operation can be used to make basic backups of your Pro Tools and/or ADAT tracks, or to “dump” an 8 or 16-track ADAT session into Pro Tools for editing, processing, or mixing.

To make basic system connections from the ADAT Bridge I/O to a single ADAT:

Connect the large end of the 50-pin interface cable (provided with your ADAT Bridge I/O) to the Computer A port on the ADAT Bridge I/O. To do this, pinch the metal tabs on either side of the 50-pin connector and push it into the port. Release pressure on the tabs to lock the connector into place.

Connect the other end of the interface cable to the Pro Tools MIX, d24 or Disk I/O card installed inside your computer. Use the thumbscrews on this connector to secure the cable in place. Whenever possible, attach the interface cable to the “master” card (the ﬁrst Pro Tools MIX, d24 or Disk I/O card in your system).

optical cable from ADAT out

to ADAT Bridge in

optical cable from ADAT Bridge out

to ADAT in

50-pin

to “Computer A” port

Interface connection, 8-channel operation

If you are adding the ADAT Bridge I/O as

◆

interface cable

to primary Pro Tools audio card

(MIX, d24 or Disk I/O)

expansion I/O, connect the Bridge to the appropriate expansion I/O port. This will be the I/O port on the Pro Tools I/O card in the next-highest PCI slot in your CPU (or PCI expansion chassis). Refer to your

Pro Tools System Installation Guide

for details on determining the slot order of your cards.

ADAT Bridge I/O

Two ADATs (16-channel operation)

The following describes connections for a single ADAT Bridge I/O and two ADATs. This basic conﬁguration allows 16-channel transfer between Pro Tools and ADAT, but has no provisions for synchronizing playback or recording of the two devices (though the two ADATs will be in sync with each other by virtue of their 9-pin Sync connection). You will have to manually start and stop recording/playback of Pro Tools and ADAT independently. Unsynchronized operation can be used to make basic ADAT backups of your Pro Tools tracks.

To make basic connections from the ADAT Bridge I/O to two ADATs:

1 Connect a second 50-pin interface cable

to the port labeled Computer B on the ADAT Bridge I/O. This cable is available separately from your dealer.

2 Connecting both computer ports of the

ADAT Bridge I/O to your computer depends upon your Pro Tools system:

• For Pro Tools MIX and 24 owners, if you have the optional 16-channel peripheral cable adapter (available separately), connect the non-Y end to your primary Pro Tools card, as described under “SingleADAT systems (8-channel operation)” on page 12. Be sure to connect the ADAT Bridge I/O Computer A port to the A branch of the Y cable and the Computer B port to the B branch of the Y cable as shown in the illustration.

ADAT 1

Alesis 9-pin sync cable

ADAT 2

optical cables

to “Computer B” port

to MIX or d24 port “B”

to MIX or d24 port “A”to “Computer A” port

50-pin

interface cables

optional Y cable

for d24 cards

(available separately)

ADAT Bridge I/O connected to two ADATs, using the optional Y-cable for Pro Tools MIX and d24 cards

– or –

• Connect the second interface cable to the next available I/O card (MIXPlus, MIXI/O, d24, or DSP Farm).

ADAT 1

Alesis 9-pin sync cable

ADAT 2

optical cables

to MIX I/O, or any Pro Tools "Farm" cardto “Computer B” port

to primary Pro Tools audio card (MIX, MIXPlus, D24 or Disk I/O card)to “Computer A” port

50-pin

interface cables

16-channel Interface connections between the ADAT Bridge and an expanded Pro Tools system using a pair of standard Digidesign interface cables

Step 3: Clock Connections

If you are only using a single ADAT Bridge I/O with no other Digidesign Audio Interfaces and no external synchronization peripherals, you can skip this step.

Chapter 2: Connecting Your Studio

If you also use a Digidesign 888 24 or 882 20 audio interface, you will most likely want to use them as your primary audio interface and use the ADAT Bridge as expansion I/O for your system.

2 Connect any other Pro Tools audio inter-

faces by repeating the above instructions and daisy-chaining the Slave Clock signal between each interface.

▲ This section covers clock connections be-

tween Pro Tools audio interfaces only. Many synchronization peripherals add their own requirements for clock. Refer to “Synchronization Connections” on page 15 for more information.

To make clock connections to other Digidesign audio interfaces:

1 Connect the Slave Clock Out of your pri-

mary audio interface (such as the 888/24) to the Slave Clock In of your next audio interface (such as the ADAT Bridge I/O) using the BNC cable.

ADAT 1

Alesis 9-pin sync cable

ADAT 2

optical cables

ADAT Bridge

to “Computer A” port

78563412785634125/6

ANALOG OUTPUT ANALOG INPUT AES/EBU OUTPUT AES/EBU INPUT

888|24 or other

additional I/O

to "Computer B" port

Slave Clock Out

to MIXI/O or Farm I/O port

SLAVE CLOCKINSLAVE CLOCK

OUT

Computer 1 port

to primary Pro Tools

888 Slave Clock Out

Computer 1

1/2

5/6

1/2

7/8

3/4

7/8

3/4

S/PDIFINS/PDIF

OUT

Slave Clock and interface connections with an 888 24 and an ADAT Bridge

50-pin

interface cables

audio card port "B"

to primary Pro Tools audio card port "A"

optional Y cable

(available separately)

Step 4: Stereo Monitor Connections (optional)

The ADAT Bridge I/O provides a pair of analog outputs that allow you to monitor audio routed to channels 1 and 2. If the ADAT Bridge I/O is the primary audio interface, these will be Pro Tools output channels 1 and 2. If you are using the ADAT Bridge I/O as expansion I/O, then these outputs will be channels 1 and 2 in the bank of outputs represented by the ADAT Bridge I/O’s Group A channels.

instruments

optical cable from ADAT out

to ADAT Bridge in

optical cable from ADAT Bridge out

to ADAT in

50-pin

interface cable

mixing console

power amp

and speakers

Stereo output and instrument input connections

The illustration above shows a setup in which the ADAT Bridge I/O is the primary Pro Tools audio interface (in 8-channel mode). If the ADAT Bridge is installed as expansion I/O, then its 60-to-50-pin Interface cable would be connected to a different interface port than the primary disk card.

to Pro Tools cardto “Computer A” port

ADAT Bridge I/O14

Synchronization Connections

For frame-accurate or near-sample-accurate transfers, you need a third-party synchronization peripheral. Synchronizing the two systems lets you transfer tracks back and forth between Pro Tools and your ADATs in perfect sync. You can then utilize your devices’ combined track capacity for bigger mixes, ﬂy tracks from tape into Pro Tools for editing and processing, or use the ADATs as a backup mechanism for Pro Tools audio.

The setup requirements for a synchronized Pro Tools/ADAT system differ slightly depending on the specific device(s) employed (e.g., BRC, MTP AV, DTP, etc.).

Diagrams are provided for synchronization connections between your ADAT Bridge I/O, Pro Tools, and each of the following devices:

• Alesis BRC with a MIDI interface or with a Digidesign USD (see Chapter 5: Synchronizing Pro Tools and ADAT with an Alesis BRC)

• JL Cooper DataSync 2 and a MIDI interface (see Chapter 6: Synchronizing

Pro Tools and ADAT Using a JL Cooper DataSync2)

• Mark of the Unicorn MTP AV (see Chapter 7: Synchronizing Pro Tools and ADAT using the MTP AV)

• Mark of the Unicorn DTP (see Chapter 8: Synchronizing Pro Tools and ADAT Using a Digital TimePiece)

• Opcode Studio 64XTC (see Chapter 9: Synchronizing Pro Tools and ADAT using an Opcode Studio 64XTC)

• Other digital devices, including ADATcompatible digital mixing consoles (see Chapter 10: Connecting Pro Tools to an ADAT-Compatible Digital Mixer)

Chapter 2: Connecting Your Studio 15

ADAT Bridge I/O16

chapter 3

Using Your System

If you are using the ADAT Bridge as your primary Pro Tools audio interface and do not need positional sync between Pro Tools and ADAT, then the primary conﬁguration instructions are all you need.

If you are using a synchronization peripheral with your Pro Tools/ADAT system (for synchronized playback and recording), refer to the chapter that most closely resembles your studio setup:

• Chapter 5: Synchronizing Pro Tools and

ADAT with an Alesis BRC

• Chapter 6: Synchronizing Pro Tools and

ADAT Using a JL Cooper DataSync2

• Chapter 7: Synchronizing Pro Tools and

ADAT using the MTP AV

• Chapter 8: Synchronizing Pro Tools and

ADAT Using a Digital TimePiece

• Chapter 9: Synchronizing Pro Tools and

ADAT using an Opcode Studio 64XTC

• Chapter 10: Connecting Pro Tools to an

ADAT-Compatible Digital Mixer

Powering Up Your System

Your Pro Tools/ADAT system consists of several devices that must communicate properly, so you should turn them on in the proper order. Make sure your computer and peripherals are all off before beginning.

Power up your system in this order:

1 Turn on your Pro Tools hard drives. 2 Turn on the ADAT. If you have multiple

ADATs, turn on the designated master ADAT, which displays “ID 1.”

• Conﬁrm that the ADAT’s clock is set to Internal. If you have multiple ADATs, set this on the master ADAT, which displays “ID 1.” To do this on the original ADAT, hold down the Set Locate button on the front of the ADAT and press the Digital In button until “INT” appears in the ADAT display. For all other ADAT models, use the Clock Select button on the front of the ADAT to set the clock mode so the ADAT’s display reads “INT” or “Internal.”

Chapter 3: Using Your System 17

• If you have additional ADATs turn them on. If they are connected properly, all ADATs will display an ID number when they start up. The Master ADAT should display “ID 1.”

• Insert an ADAT tape. If you have multiple ADATs, there must always be a tape in the master ADAT.

3 Turn on synchronization or other MIDI

peripherals or interfaces.

4 Turn on the Pro Tools master audio inter-

face. Depending on your studio setup, this could be the ADAT Bridge I/O, or another Pro Tools audio interface.

5 Turn on any additional Pro Tools Audio

Interfaces.

6 Turn on your computer.

Basic Settings

There are several software settings that you need to conﬁgure after installing the ADAT Bridge I/O.

The following instructions explain how to make these basic settings. In most examples, the ADAT Bridge is the primary Pro Tools audio interface. Using the ADAT Bridge I/O as an expansion interface has special requirements that are noted throughout this guide.

Trashing the DigiSetup File

(Macintosh Only)

If you are using a Macintosh computer and are adding the ADAT Bridge to a previously installed Pro Tools system, you will need to throw away your DigiSetup file before you open and configure Pro Tools. This file is located in the Preferences Folder, which is inside the System Folder. Restart your computer and proceed with the instructions that follow.

Conﬁguring the ADAT Bridge for Pro Tools

To conﬁgure Pro Tools software:

1 Launch Pro Tools. Depending on your

setup, one of the following will occur:

• If this is the ﬁrst time you have launched Pro Tools software, or you have trashed the DigiSetup ﬁle, you will be prompted to choose the audio interfaces connected to your system from the Playback Engine dialog.

Playback Engine with ADAT Bridge I/O as the primary audio interface (note the Card popup setting “d24 #1”).

ADAT Bridge I/O18

Playback Engine where ADAT Bridge I/O is not the primary audio interface (note the Card setting “DSP Farm #2”).

• If you have previously installed and launched Pro Tools, choose Setups > Playback Engine.

2 Choose the Playback Engine that corre-

sponds to the master Digidesign card in your computer (MIX, d24, etc.). Refer to the Pro Tools System Installation Guide if you need more information.

3 If you have a MIX or d24 card, click the

Interface Port pop-up and choose the port that your ADAT Bridge I/O is connected to:

• If you have a single ADAT Bridge I/O port (Group A on ADAT Bridge back panel) connected to your card, choose port A.

• If you have both ports (A and B) connected to a MIX or d24 card with the optional 16-Channel Peripheral Cable Adapter (the Y-cable), ﬁrst conﬁgure interface port A then conﬁgure interface port B.

4 Click the Interface pop-up and choose

the ADAT Bridge. If you have a MIX or d24 card with a single ADAT Bridge I/O connected to it, choose ADAT Bridge A. If you have both ADAT Bridge I/O Group A and B ports connected to a MIX or d24 card (with the optional Y cable), ﬁrst choose ADAT Bridge A (1–8) for the one connected to port A. Then, click the Interface Port popup, choose port B, and choose ADAT Bridge B (1–16) as the interface connected to port B.

5 Click the Sample Rate pop-up and choose

the appropriate sample rate, 44100 (44.1 kHz), or 48000 (48 kHz) for the currently selected card and interface. This should be conﬁgured from the primary card/audio interface settings.

ADAT tapes may be formatted at 48 kHz. Make sure you choose the sample rate that matches the material that you plan to work with. If the Pro Tools sample rate doesn’t match that of the ADAT tape, pops and clicks may occur during recording/monitoring.

6 Click the Sync Mode pop-up and choose

the appropriate sync mode. Your choice depends on which device in your setup you want to make the master clock device. See “Sync Mode Options” on page 20 for details.

✽ This choice is available only when the

ADAT Bridge I/O is the master audio interface.

Chapter 3: Using Your System 19

7 Click the Digital Format pop-up to

choose the digital format (AES/EBU or S/PDIF) for channels 1–2 of the currently selected interface. If a digital device is connected to both the AES/EBU and S/PDIF ports of your interface, this pop-up allows you to choose which port the ADAT Bridge “listens to” for digital audio input and word clock input. Only one port can be used at a time.

8 Click the Ch 1–2 Input pop-up to select

the input format of channels 1–2 of the currently selected interface. When conﬁguring the Playback Engine and/or Hardware Setup for the ADAT Bridge, do one of the following:

• Choose ADAT to select optical input from the ADAT. In this conﬁguration, all 8 channels of the attached ADAT optical device will appear in Pro Tools.

• Choose Digital to select digital format input from a DAT deck or a word-clock generating device. When Ch 1–2 Input is set to Digital, channels 1–2 will carry data from the digital port (either AES/EBU or S/PDIF), and channels 3–8 will represent the data from the ADAT.

9 If you have additional interfaces, conﬁg-

ure them in a similar manner.

10 Click OK to close the Playback Engine

dialog when you have ﬁnished.

Pro Tools will remember your configuration until you change it. If you want to change your Pro Tools hardware configuration in the future, you can do it from any of these locations:

• The Playback Engine dialog (Setups > Playback Engine). – or –

• The Hardware Setup dialog (Setups > Hardware).

Hardware Setup dialog

In addition, several settings can be made from the Session Setup window. These settings are described later in this chapter.

Sync Mode Options

The choices you see for Sync Mode will depend on how you have connected the ADAT Bridge I/O to Pro Tools.

ADAT Bridge as Primary Interface

If the ADAT Bridge I/O is being used as the primary audio interface, then the following choices are available for Sync Mode:

ADAT as clock master Choose ADAT Opti-

cal to select the ADAT as the clock master (ADAT Bridge must be your primary audio interface for this choice to be available). When the ADAT Bridge is your primary audio interface, this will be the setting to use for ADAT-to-Pro Tools audio transfers.

ADAT Bridge I/O20

Pro Tools as clock master

to select Pro Tools as the clock master. This is the setting to use when you want external devices connected to the ADAT Bridge to slave to the ADAT Bridge. The ADAT devices should then be set for “Dig” or digital mode (or, if you are using an ADAT synchronizer, “Ext” or external). This is the setting you will want to use whenever you perform a Pro Tools-to-ADAT transfer, or when the ADAT Bridge is not the primary audio interface.

Another device as clock master Choose

Digital if you are recording digital material into Pro Tools from a DAT deck or a digital device other than your ADAT. In this mode, the clock master comes from whatever digital device is connected to the ADAT Bridge I/O digital inputs (not the ADAT-format inputs). You must then use the Digital Format pop-up to choose the digital port (AES/EBU or S/PDIF) for the digital word clock signal. The ADAT should then be set to “Dig” or digital sync mode. If you own an Alesis M20, set it to Optical.

Choose Internal

Switching Output Levels

If you want to switch the output levels of the ADAT Bridge I/O from +4 dBu to –10 dBV, click the Other Options button in the Playback Engine dialog (make sure the ADAT Bridge is currently selected in the dialog).

Other Options dialog

Choose the operating level that best matches your mixing console. If you plan to record to or from a Tascam DA30 DAT recorder, this dialog also allows you to set S/PDIF data compatibility for this device.

ADAT Bridge not Primary Interface

If the ADAT Bridge is not the primary audio interface, no sync choices will be available. In this conﬁguration, external ADAT optical devices will always be in “Dig,” “Ext Sync,” or “Optical” mode.

☞ Refer to your other Digidesign audio inter-

face guides for sync choices.

Transferring Audio Between ADAT and Pro Tools (Unsynchronized)

This section contains instructions for unsynchronized audio transfer to/from Pro Tools and ADAT, and covers the following tasks:

• Transferring ADAT tracks to Pro Tools (unsynchronized)

• Using the ADAT’s inputs to record audio into Pro Tools

• Transferring Pro Tools tracks to an ADAT

Chapter 3: Using Your System 21

• Using Pro Tools inputs to record audio to an ADAT

☞ If your ADAT system includes a BRC, refer to

Chapter 5: Synchronizing Pro Tools and ADAT with an Alesis BRC.

Using the ADAT Bridge in this manner provides a convenient and cost-effective way to back up Pro Tools tracks (8 or 16 at a time), or to transfer tracks or mixes to Pro Tools for mastering. You can also use the ADAT as the “mastering deck” destination for Pro Tools multi-channel stem mixes of music, sound for post, or multichannel surround mixes.

The setups given in this section have no provisions for synchronizing playback or recording of Pro Tools and ADAT. You will have to manually start and stop recording/playback of Pro Tools and the ADAT independently.

To use a third-party synchronizer to achieve synchronized recording and playback between Pro Tools and ADAT, see “Configuring Sync” on page 26.

Prepare Your ADAT Tapes Before You Begin

If you plan to do any recording from Pro Tools to one or more ADATs, make sure that you have an ADAT formatted S-VHS cassette prepared for each ADAT in the system (see your ADAT Reference Manual for specific instructions). Because this can be time consuming, it is a good idea to allow plenty of time for formatting before you begin recording with your ADAT. When formatting ADAT tapes, be sure to set the

sample rate to either 44.1 kHz or 48 kHz, depending on the rate at which you want to record.

▲ Refer to your ADAT manual for details on re-

cording or playback at 44.1 kHz. Different ADAT models have different requirements for formatting tapes and/or conﬁguring the unit.

About Pro Tools Monitoring Modes

Use Input Only Monitor if you want to be able to hear incoming material on recordenabled Pro Tools tracks before you initiate recording. Use Auto Input Monitor to hear incoming material only during actual recording.

Recording Tracks from an ADAT to Pro Tools (Unsynchronized)

Each ADAT Bridge I/O allows you to digitally transfer up to 16 tracks at once between Pro Tools and ADAT.

To perform the unsynchronized transfer described in this section, the ADAT Bridge must be the primary interface in your Pro Tools system.

This basic setup has no provisions for synchronizing playback or recording of the two devices. You will have to manually start and stop recording/playback of Pro Tools and the ADAT independently.

To record ADAT tracks into Pro Tools:

1 Set the ADAT clock to Internal. 2 In Pro Tools, create a new session or open

an existing session.

ADAT Bridge I/O22

3 In the Pro Tools Session Setup window:

• Set Channel 1–2 input to ADAT.

• Set the Pro Tools Sync Mode to ADAT Optical.

• Choose the sample rate that matches the sample rate of the material on the ADAT(s).

4 In Pro Tools, create the number of desti-

nation audio tracks you want to transfer from ADAT. Make sure the destination tracks each have a different voice assignment in the Pro Tools session.

5 Use the Input Selector of each destina-

tion track to assign its input. With the ADAT Bridge I/O as your master Pro Tools interface, this is done for you automatically: Pro Tools track inputs 1–8 correspond to Group A optical inputs (1–8) and track inputs 9–16 correspond to Group B optical inputs (9–16).

6 Select a Pro Tools monitoring mode

(Auto Input Monitor or Input Only Monitor).

7 Record enable your destination tracks in

Pro Tools.

8 Click Record and then Play in the

Pro Tools Transport window.

9 Press Play on the ADAT to begin play-

back.

10 When you have ﬁnished recording,

click Stop in the Pro Tools Transport window and press Stop on the ADAT.

Recording to Pro Tools Using the ADAT Device Analog Inputs

Depending on your setup — particularly if you are using the ADAT Bridge I/O as your only Pro Tools interface — you may want to record into Pro Tools using the ADAT (or ADAT device) analog inputs. The following section explains how to connect and play an audio source through your ADAT and record it digitally onto your hard disk. Because most ADATs have no input attenuation controls, you must control your audio input levels at their source, using an instrument preamp or mixing console.

This setup also applies if you are using an ADAT optical interface-equipped digital mixing console and want to record into Pro Tools using that console’s A/D converters.

▲ The original “blackface” ADAT (but not later

models such as the XT, LX20, or M20) inverts the polarity of analog input signals. Material recorded into Pro Tools through an original ADAT’s analog inputs will have its polarity reversed. To compensate for this, you can use the “Invert” AudioSuite Plug-In in Pro Tools to return the signal to its correct polarity.

To record audio from ADAT inputs into Pro Tools:

1 Connect your audio source(s) to the ana-

log input jacks on the back panel of your ADAT.

2 Set the ADAT to analog input. 3 On your ADAT, enable All Input Monitor

button.

Chapter 3: Using Your System 23

4 Conﬁgure Pro Tools as if you were trans-

ferring ADAT tracks as described in the previous section (i.e., create destination tracks, select their inputs, and record enable them).

5 Click Record and then Play on the

Pro Tools Transport.

6 Play the audio sources that are connected

to the ADAT analog inputs.

7 When you have ﬁnished recording, click

the Pro Tools Stop button.

▲ In the scenario above, the ADAT stays idle

during recording. There is no need to press the ADAT’s Play or Record buttons. The ADAT is merely converting the audio into a digital stream and passing it to Pro Tools via the optical connectors on the ADAT Bridge I/O.

Recording Tracks from Pro Tools to ADAT (Unsynchronized)

The following section explains how to perform a basic, non-synchronized Pro Toolsto-ADAT audio transfer.

To record Pro Tools tracks into ADAT:

1 Set the ADAT’s clock to Digital using its

front panel buttons. (Before you do this, turn your monitor volume down, since ADATs can emit a loud pop when their clock source is changed.)

2 Insert the ADAT tape you want to record

on into your ADAT. Make sure that it is formatted to the same sample rate as the current Pro Tools sample rate.

3 On the ADAT, record enable the destina-

tion ADAT tracks. Make sure that the same tracks are not conﬁgured as Pro Tools input sources or a feedback loop will occur.

4 In Pro Tools, open the session with the

audio you want to transfer to the ADAT.

5 In the Pro Tools Session Setup window,

set Channel 1–2 input to ADAT (if the ADAT Bridge is your primary audio interface), or Analog (if the ADAT Bridge is not your primary audio interface).

6 In the Pro Tools Session Setup window,

set the Pro Tools Sync Mode to Internal.

7 Use the Output Selector of each Pro Tools

track to assign its output to an ADAT channel.

• If you are using an ADAT Bridge I/O as your master Pro Tools interface, Pro Tools channel 1–8 outputs correspond to ADAT Group A (1–8) and channel outputs 9–16 correspond to Group B (9–16).

• If your ADAT Bridge I/O is not your master Pro Tools interface, you must use the output selector to route each track to the ADAT Bridge and its available channels (for example, #3 1/2 ADAT Bridge A).

8 Press the ADAT’s Record and Play but-

tons.

9 Click the Play button on the Pro Tools

Transport. Pro Tools begins playback. The Pro Tools material is recorded to ADAT.

10 When you have ﬁnished recording,

click the Stop button in Pro Tools, then press the ADAT’s Stop button.

ADAT Bridge I/O24

Recording from Pro Tools Analog Inputs to an ADAT

If you use other Audio Interfaces in addition to your ADAT Bridge I/O, you may ﬁnd it convenient to record directly to ADAT from audio sources connected to your Pro Tools Audio Interface.

To record to ADAT through Pro Tools analog inputs:

1 Connect the instruments or other audio

sources to the desired input jacks on the back of your Audio Interface.

2 In the Pro Tools Session Setup window,

set the Sync Mode to Internal.

3 In Pro Tools, create new audio tracks or

auxiliary inputs to correspond to each channel of analog source audio. Route the connected analog sources to them using the Input Selector pop-up on each Pro Tools track. Make sure to record enable any audio tracks that you create in order to pass the audio to the ADAT.

4 Use the Output Selector of each Pro Tools

track to assign its output to an ADAT channel.

• If you are using an ADAT Bridge I/O as your master Pro Tools interface, Pro Tools channel 1–8 outputs correspond to Group A optical outputs (1–8) and channel outputs 9–16 correspond to Group B optical outputs (9–16).

• If your ADAT Bridge I/O is not your master Pro Tools interface, use the output selector to route each destination track to the ADAT Bridge.

5 Insert the ADAT tape you want to record

on into your ADAT. Make sure that it is formatted to the same sample rate as the current Pro Tools sample rate.

6 Set the ADAT’s clock to Digital, External,

or Optical.

7 On the ADAT deck, record enable the

ADAT destination tracks you want to record to. Make sure that the same ADAT tracks are not conﬁgured as Pro Tools input sources or a feedback loop will occur.

8 In Pro Tools, adjust the output level of

the source audio using the track output level faders.

9 Press the Record and Play buttons on

your ADAT.

10 Begin playback of the analog sources

connected to your Pro Tools Audio Interface. The audio is recorded to the ADAT.

11 To stop recording, press Stop on your

ADAT.

Recording from Pro Tools Digital Inputs to an ADAT

You can record to ADAT from Pro Tools digital inputs just as easily as with the analog inputs.

To record onto ADAT tracks from Pro Tools digital inputs:

1 Connect a digital audio source to the dig-

ital inputs on the back of your master Audio Interface. (This could be the ADAT Bridge I/O or another Audio Interface, depending on which interface is connected to the ﬁrst Pro Tools card installed in your computer.)

2 In the Pro Tools Session Setup window,

set Channel 1–2 input to Digital, and set the Pro Tools Sync Mode to Digital.

Chapter 3: Using Your System 25

3 In Pro Tools, create new audio tracks or

auxiliary inputs to correspond to each channel of digital source audio. Route the connected digital sources to them using the Input Selector pop-up on each Pro Tools track.

4 Use the Output Selector of each Pro Tools

track to assign its output to an ADAT channel.

5 Insert the ADAT tape you want to record

on into your ADAT. Make sure that it is formatted to the same sample rate as the current Pro Tools sample rate.

6 Set the ADAT’s clock to Digital. 7 On the ADAT, record enable the ADAT

destination tracks you want to record to. Make sure that the same ADAT tracks are not conﬁgured as Pro Tools input sources or a feedback loop will occur.

8 In Pro Tools, adjust the output level of

the source audio using the track output level faders. This will help you prevent overloading the ADAT’s inputs.

9 Press the Record and Play buttons on

your ADAT.

10 Begin playback of the digital sources

connected to your Pro Tools Audio Interface. The audio is recorded to the ADAT.

11 To stop recording, press Stop on your

ADAT.

Conﬁguring Sync

Synchronized transfers between Pro Tools and ADAT have special configuration requirements for clock, time code and other sync-related connections. These configuration requirements vary with the devices being used.

Conﬁguring Windows Computers for Sync

All that is required to conﬁgure Pro Tools/ADAT sync on Windows computers is that your sync peripheral be correctly connected, installed and conﬁgured to operate on your computer (refer to your MIDI interface or other sync peripheral’s installation instructions). Once properly connected, your device’s sync/MIDI ports will be listed in Pro Tools and available as sync sources/destinations.

Conﬁguring Macintosh Computers for Sync

For Pro Tools/ADAT sync on Macintosh computers, Pro Tools requires OMS. OMS, developed by Opcode, is supplied with Pro Tools and with all Opcode MIDI interfaces and sync devices.

The following section shows how to configure OMS for a single type of sync peripheral (the Cooper DataSync2). Though it is not within the scope of this User’s Guide to provide OMS configurations for all possible peripherals, the section that follows provides some general guidelines for configuring a device so that Pro Tools can communicate with it.

ADAT Bridge I/O26

OMS Example Setup

(Macintosh Only)

If you are using a Macintosh with a MIDI interface, BRC, JL Cooper DataSync2, or an Opcode Studio 64XTC, you must configure these devices in OMS so that they can communicate properly with Pro Tools.

OMS is installed on your computer as part of the standard Pro Tools installation. For detailed instructions on installing and configuring OMS, refer to the Pro Tools System Installation Guide.

If you are not using a MIDI interface, BRC, or synchronization peripheral with your Pro Tools/ADAT system, you can skip this section.

▲ The directions given here explain how to add

a MIDI device to OMS. This setup assumes you have already conﬁgured your MIDI interface, if you are using one. You must conﬁgure the MIDI interface before conﬁguring any OMS devices.

OMS MIDI Setup dialog

4 Launch the OMS Setup application. 5 Choose Studio > New Device. 6 In the MIDI Device Info window, choose

the Manufacturer and Model names for your device (if available) and name the device using the Name ﬁeld.

7 Uncheck both Is Controller and Is Multi-

timbral.

8 Check both Receives and Sends MIDI

Time Code.

To conﬁgure an OMS device:

1 Make sure that the peripheral and/or

MIDI interface is turned on and connected properly to your system.

2 Launch Pro Tools. 3 From the Pro Tools Setups menu, choose

the OMS MIDI Setup command. The OMS MIDI Setup dialog appears, allowing you to select the serial port(s) that your MIDI interface is connected to. After you have chosen the desired port(s), click OK.

Deﬁning an OMS MIDI device

9 Click OK to close the MIDI Device Info

window, and save this document as your current OMS Setup document.

Chapter 3: Using Your System 27

10 In the OMS Setup window, connect the

peripheral to the correct OMS port location or MIDI interface. To do this, drag the peripheral’s icon over the icon for the desired port or MIDI interface. Arrows connecting the peripheral to and from the desired port or MIDI interface signify that a connection has been made.

To disable Serial DMA in OMS:

1 Choose Preferences from OMS Studio

Setup’s Edit menu.

2 Deselect the Use Serial DMA option. 3 Click OK to close the Preferences win-

dow.

Transferring Audio Between ADAT and Pro Tools (Synchronized)

A more powerful way to transfer tracks between Pro Tools and ADAT is to do it with both systems synchronized. With the systems in sync, you can record tracks into Pro Tools to edit and process them as needed, then record them back into place on the ADAT.

Connecting a peripheral (DataSync2) to the correct port in the OMS Setup window

11 In Pro Tools, choose Peripherals from

the Setups menu. From the Device pop-up, choose Generic MTC Reader. From the Port pop-up, select the OMS port location that you deﬁned in OMS Setup (modem or printer). Click OK to close this dialog.

OMS should now be configured for communication between your peripheral and Pro Tools.

▲ Pro Tools requires that you disable (un-

check) the “Use Apple Serial DMA driver when available” preference in OMS Setup. If you do not disable this option, problems may occur with MIDI and synchronization functions.

ADAT Bridge I/O28

This section provides a few of the most commonly used configurations for synchronizing Pro Tools and ADAT.

Choosing the Master Clock Source

A synchronized system requires a master clock reference signal so that all connected devices will run at the same speed, slaved to that clock. Possible sources of the master clock reference include:

• Pro Tools

• ADAT

• A BRC

• A blackburst generator

• A third-party synchronization peripheral (e.g. MTP AV, DTP, or 64XTC)

• Any digital device that generates an AES/EBU, S/PDIF, or word clock signal

The device you choose will depend on the equipment you are using with your system. As a general rule, you should choose the most stable clock source possible. Whatever device you use as your master clock reference, you must configure Pro Tools and the ADAT accordingly.

☞ If you use Pro Tools MIDI Machine Control,

you can use the Pro Tools Transport Master popup menu (in the Transport window) to control either Pro Tools or the ADAT. Refer to your

Pro Tools Reference Guide for more informa-

tion.

Choosing the Transport Master

In a synchronized setup, you must decide which system — Pro Tools or ADAT — will provide the positional reference for both systems and function as the transport master. This is necessary for both systems to start and stop playback/recording from the same time code/session location.

Because Pro Tools can both broadcast and respond to MIDI Machine Control (MMC), you can use MMC to communicate transport commands (such as Play, Stop) between your devices. When playback begins, time code (usually MIDI Time Code, or SMPTE in some setups) provides the positional reference to keep all the devices at the same place while the designated clock master (Pro Tools, ADAT, or Slave Clockcapable synchronization peripheral) keeps everything running at precisely the same speed/sample rate. Your choice of transport master will depend upon what type of synchronization device you are using, and instructions for selecting the transport master are included in each of the following setup examples.

ADAT as Master Clock and Pro Tools as Slave

In general, you should make ADAT the master clock device when you are transferring audio originally recorded on ADAT to Pro Tools. Also, because Pro Tools is a nonlinear system, it is ideally suited to be a slave device (it can cue up instantly without having to wind tape). In some situations, however, Pro Tools must be the clock master. These situations are noted as in the setup examples that follow.

Pro Tools as Master Clock and ADAT as Slave

In general, Pro Tools should be the master clock device when you are transferring audio originally recorded in Pro Tools to an ADAT, or whenever the ADAT Bridge I/O is not your primary audio interface.

Both Pro Tools and ADAT as Slaves

If you are using an external synchronization device such as a Digidesign USD (or any Slave Clock-capable device such as the MTP AV or 64XTC) that device should provide the master clock signal to which both Pro Tools and the ADAT will be slaved.

The sections that follow provide instructions for achieving synchronized playback/recording between Pro Tools and the ADAT using a number of different devices. Please refer to the section that applies to your particular setup.

Chapter 3: Using Your System 29

✽ The ADAT Bridge 24 I/O automatically de-

tects when an external sync source is lost. In such a situation, the I/O automatically switches to internal sync mode until the external sync input is reconnected to ensure that playback is maintained even if the sync source is removed.

ADAT Bridge I/O30

chapter 4

Using the ADAT Bridge I/O in Standalone Mode

In addition to its role as a bridge between Pro Tools and ADAT, the ADAT Bridge I/O can also be used on its own as a stand-alone S/PDIF or AES/EBU-to-ADAT-optical converter. This capability allows you to digitally transfer audio from DAT or a digital I/O-equipped CD player or digital mixing console to ADAT without having to power on your computer or launch Pro Tools.

Audio received over the ADAT Bridge I/O’s digital ports can be monitored with 24-bit fidelity through its analog outputs. These outputs default to –10 dBV operating levels when the ADAT Bridge I/O is used in standalone mode.

ADAT Channels Transferred

In standalone mode, only channels 1–2 of the ADAT format inputs are transferred to AES/EBU or S/PDIF Outputs. All other ADAT channels are ignored.

Using Standalone Mode

To use the ADAT Bridge I/O in standalone mode:

1 Make sure that your computer is off. 2 Connect the digital audio source (the

DAT or digital I/O-equipped CD player) to the ADAT Bridge I/O.

3 Turn on the digital audio source (the DAT

or digital I/O-equipped CD player).

4 Turn on the ADAT Bridge I/O. 5 The ADAT Bridge I/O will scan both its

S/PDIF and AES/EBU ports for word clock. Once word clock lock has been achieved, the ADAT Bridge I/O will switch to digital sync mode and automatically match its sample rate to the incoming data. (If the incoming word clock is 48 kHz, the 48 kHz sample rate LED will remain lit. If the incoming word clock is 44.1 kHz, the 48 kHz sample rate LED will ﬂash.) Accordingly, digital output sent via the ADAT Bridge I/O’s AES/EBU, S/PDIF, and optical ports will also match the sample rate of the incoming data.

Chapter 4: Using the ADAT Bridge I/O in Standalone Mode 31

6 Set the ADAT, or ADAT-compatible de-

vice to digital sync and digital input. (If you own an Alesis M20, set it to Optical sync.)

7 Record enable the ADAT tracks to which

you want to record. The ADAT Bridge I/O multiplexes the digital audio to all 16 optical channels. Channel 1 audio (the left channel) is sent to all odd channels of the ADAT (1, 3, 5, 7, 9, 11, 13, 15) and channel 2 audio (the right channel) is sent to all even channels (2, 4, 6, 8, 10, 12, 14, 16). This allows you to record your digital input pair on any ADAT pair.

8 Press Record and Play on the ADAT. 9 Begin playback of the source material on

DAT or CD.

Since both the AES/EBU and S/PDIF outputs of the ADAT Bridge I/O are active when it is in standalone mode, the ADAT Bridge I/O can be used to convert the format of digital audio to or from S/PDIF to AES/EBU.

ADAT Bridge I/O32

chapter 5

Synchronizing Pro Tools and ADAT with an Alesis BRC

serial or USB cable to

Standard MIDI Interface

ADAT

to BRC

48 kHz word clock in

BRC

MIDI IN

MIDI in/out

MIDI IN MIDI OUT

BRC 9-pin remote out

modem, printer, or USB port

MAC SERIAL

MIDI OUT

REMOTE OUT

TO ADAT

ADAT 1

MIDI Time Code

Computer

Pro Tools card

optical cables in/out

Digidesign ADAT Bridge

to Pro Tools card

word clock out from ADAT Bridge I/O

to BRC 48 kHz word clock in

Figure 3. Wiring example for a BRC-equipped system

Chapter 5: Synchronizing Pro Tools and ADAT with an Alesis BRC 33

ADAT 2

Pro Tools Y-cable

50-pin

interface cables

Hardware Setup

When used with a MIDI Interface, the BRC can function as the transport master while Pro Tools (via the ADAT Bridge I/O) is the clock master. This configuration is best for synchronized audio playback, recording, and track transfer from Pro Tools to ADAT with 1/4 frame accuracy or better.

About 44.1 Sessions with the BRC

The BRC’s 48k clock input allows you to resolve the BRC to the ADAT Bridge’s word clock out. With the ADAT XT, this requires that all sessions be at 48k in order to avoid clock anomalies (clicks and pops).

To connect this setup:

1 Make your primary connections as de-

scribed in “Primary Connections (Bridge I/O to Pro Tools and ADAT)” on page 10.

2 Connect a 9-pin sync cable from the

BRC’s Remote Out port to the (master) ADAT’s Sync In port.

3 Connect the Word Clock Out of the

ADAT Bridge I/O to the BRC 48 kHz In.

4 Connect the MIDI In and MIDI Out of

the BRC to the appropriate MIDI In/Out of your MIDI Interface.

5 Make sure that your MIDI interface is

connected to your computer and other devices, and that it is installed and conﬁgured correctly.

BRC Settings for Pro Tools-to-ADAT Transfer

◆ Enable EXT SYNC on the BRC, then

check that the BRC external clock/sync source is at 48kHz Input. (To change this setting, press EDIT, then press EXT SYNC

until Clock Source is displayed in the LED. Use the lowercase/uppercase increment arrows to scroll to 48kHz Input. Press EDIT again to exit.)

For highest-quality ADAT-to-Pro Tools transfers with this setup, the BRC needs to be the clock and positional master. The example that follows shows how Digidesign’s USD can be used to achieve this configuration.

Using a Digidesign USD with a BRC

Digidesign’s USD is a high-quality, multipurpose synchronization peripheral. By adding the USD to your system, you can transfer from ADAT to Pro Tools or Pro Tools to ADAT with near sample accuracy, using the BRC as your transport master.

To integrate a USD with a BRC and ADAT Bridge/Pro Tools system:

1 Make the primary connections as de-

scribed in “Primary Connections (Bridge I/O to Pro Tools and ADAT)” on page 10.

2 Make sure your USD is connected to the

DigiSerial Port, and that your MIDI interface is properly connected to your CPU.

3 Connect the BRC as described in “Hard-

ware Setup” on page 34, except:

4 Use a BNC cable to connect the USD’s

Slave Clock Out to the Slave Clock In of your master Pro Tools audio interface.

5 Daisy-chain the Slave Clock signal to all

your audio interfaces as explained in your Pro Tools System Installation Guide.

ADAT Bridge I/O34

6 Use another, short BNC cable to connect

the ADAT Bridge Word Clock Out to the BRC 48 kHz In. Try to use the shortest BNC cable possible for word clock connections to the BRC.

7 Make a connection from the BRC SMPTE

Out port to the LTC In port on the USD. Make sure to set the USD positional reference to LTC, and its clock reference to Internal.

ADAT 1

Alesis 9-pin sync cable

ADAT Bridge

ADAT BRC

SMPTE Out

BI-PHASE / TACH / GPI

PC SERIAL

optical cables

to “Computer B” port

to “Computer A” port

MIDI IN MIDI OUT

OUT

MAC SERIAL

VIDEO

VIDEO REF

Word Clock Out

to BRC 48 kHz In

REMOTE OUT

TO ADAT

LTC In

L T

MTC OUT

to DigiSerial port

to ADAT Sync In

ADAT 2

SlaveClock Out

IN E S

OUT U T

WORD CLOCK

Slave Clock In

9-PIN IN / ACC

OUT

SUPER CLOCK (256X)

9-PIN OUT

USD Slave Clock Out

85-264VAC, 47-63HZ, 115 W

(available separately)

50-pin

interface cables

to port "B"

to primary Pro Tools

audio card port "A"

optional Y cable

Connecting a USD and BRC to an ADAT Bridge

Software Conﬁguration

The following section explains how to synchronize Pro Tools/ADAT with a BRC. In this case, the BRC provides both the clock reference signal and the positional reference. This enables you to synchronize the ADAT and Pro Tools with near sample accuracy (1/4 frame accuracy without a USD). The Pro Tools transport is controlled by the BRC.

You can also use MIDI Machine Control in this (and all other) sync setups. MMC configurations are covered in “Using MIDI Machine Control (MMC) with a BRC” on page 38.

Synchronizing on Windows Systems

When using Pro Tools on a Windows computer, simply make sure your MIDI interface is installed and operating correctly. Instead of choosing OMS or FreeMIDI device names, Pro Tools popup menus of MIDI ports simply list the available hardware MIDI ports of the currently installed MIDI Interface.

Recording Tracks from an ADAT to Pro Tools Using a BRC

This setup explains how to perform a synchronized ADAT-to-Pro Tools track transfer using a BRC.

To transfer audio from ADAT to Pro Tools:

1 Connect the BRC and MIDI Interface to

your system as shown in “Hardware Setup” on page 34.

On the BRC:

2 Make sure the EXT SYNC button is off

(unlit).

3 Enable the GEN SYNC button on the

BRC. This enables the BRC to generate time code.

Chapter 5: Synchronizing Pro Tools and ADAT with an Alesis BRC 35

In OMS Setup (Macintosh Only):

4 On your computer, open the OMS Setup

application and conﬁgure the BRC and your MIDI interface. (If you choose Alesis in the Manuf pop-up menu, and BRC in the Model pop-up in this dialog, the appropriate settings will be conﬁgured automatically). In OMS’ MIDI Device Info dialog, enable Sends and Receives MTC and MMC for the BRC. You must have an OMS device deﬁned for the BRC if you haven’t already done so. Click OK after conﬁguring the OMS Device Info window, then connect the BRC to the appropriate MIDI port in the OMS Setup Window.

Conﬁguring the BRC in OMS

5 Save the BRC/MIDI interface conﬁgura-

tion document as your current OMS setup.

In Pro Tools:

6 In Pro Tools, choose Setups > Peripherals

and display the Synchronization window. From the Device pop-up, choose Generic MTC Reader. From the Port pop-up, choose BRC (on the Macintosh) or the appropriate port of your MIDI interface (in Windows). Alternatively, if the name of the (BRC) OMS device does not appear here, choose the serial port to which your MIDI interface is connected.

7 In the Pro Tools Session Setup window:

• Set Channel 1–2 input to ADAT if the ADAT Bridge is your primary interface, or Analog if it is not your primary audio interface.

• Set Pro Tools Sync Mode to ADAT Optical (if the ADAT Bridge is not your primary audio interface, choose Digital)

• Choose the sample rate and frame rate that matches the material on the ADAT.

8 Create destination audio tracks for the

ADAT tracks to be transferred. Make sure the destination tracks each have a different Pro Tools voice assignment.

9 Use the Input Selector of each destina-

tion track to assign its input. When the ADAT Bridge is your primary interface, Inputs 1–8 correspond to the ADAT Bridge I/O’s Group A inputs. Inputs 9–16 correspond to ADAT Bridge I/O’s Group B inputs. If you have additional ADAT Bridges/ADATs, assign their inputs as well.

10 Select a Pro Tools monitoring mode

(Auto Input Monitor or Input Only Monitor).

11 Conﬁgure Pro Tools to display Time

Code.

12 Choose Setups > Preferences, then click

the Operations button to display the Operations Preferences dialog. Choose the desired Pro Tools online recording mode: Record Online at Time Code (or ADAT) Lock, or Record Online at Insertion/Selection. If you are not familiar with these modes, refer to the Pro Tools Reference Guide.

ADAT Bridge I/O36

13 Record enable your Pro Tools destina-

tion tracks.

14 Conﬁrm that time code is being re-

ceived by Pro Tools. Do this by pressing Play on the BRC. The Current Time counter in the upper right-hand corner of the Pro Tools Session Setup window should begin running. Make a note of the SMPTE frame number where the time starts. If there appears to be an offset, you’ll need to enter the offset number as the Pro Tools session start time in the Session Setup window. Rewind the BRC/ADAT to a location at least 10 seconds before the time code address at which you want to start Pro Tools recording. This is necessary to provide Pro Tools with enough time to lock to the time code that it receives.

15 Put Pro Tools online. 16 Click Pro Tools Record button. 17 Press Play on the BRC. When sync is es-

tablished, Pro Tools begins online recording.

18 When you have ﬁnished recording,

press the BRC’s Stop button. Pro Tools will stop recording.

Recording Tracks from Pro Tools to ADAT with a BRC

This setup explains how to perform a synchronized Pro Tools-to-ADAT track transfer with a BRC. In this case Pro Tools provides the clock reference signal, but the BRC provides the positional reference and controls the Pro Tools Transport.

To transfer audio from Pro Tools to ADAT:

1 Make sure the desired Pro Tools session is

open and the Sync Mode is set to Internal in the Session Setup window.

2 On the BRC, make sure the Gen Sync but-

ton is on.

3 Press the Enable Ext Sync button. (Before

doing this, lower your main monitor levels, as ADATs can emit a loud pop when the master clock is changed on the BRC.)

4 Make sure that the ADAT tape is format-

ted to the same sample rate as the Pro Tools material you intend to transfer.

5 On the ADAT, make sure that the Digital

In button is on.

6 On the BRC, record enable the destina-

tion ADAT tracks. Make sure that the same tracks are not conﬁgured as Pro Tools input sources or a feedback loop will occur.

7 Use the Output Selector of each Pro Tools

track to assign its output to an ADAT channel.

• If you are using an ADAT Bridge as your master Pro Tools interface, Pro Tools hardware outputs 1–8 correspond to Group A optical outputs (1–8) and channel outputs 9–16 correspond to Group B optical outputs (9–16).

• If your ADAT Bridge I/O is not your master Pro Tools interface, you must use the output selector to route each track according to how your Audio Interfaces are ordered.

8 Put Pro Tools online. 9 Cue the BRC to a location at least 10 sec-

onds before the time code address at which you want to start Pro Tools playback. This provides adequate time for Pro Tools to lock to the time code and begin playback.

Chapter 5: Synchronizing Pro Tools and ADAT with an Alesis BRC 37

10 Press the BRC’s Record and Play but-

tons. Pro Tools locks to the ADAT and begins playback. The Pro Tools material is then recorded to ADAT.

11 When you have ﬁnished recording,

press the Stop button on the BRC.

▲ If you are recording to the ADAT and audio

already exists before the punch point, you may want to manually “punch in” to avoid erasing a portion of the existing audio that you want to keep. To do this, simply press Play on the BRC to start the ADAT/Pro Tools rolling, then press the BRC’s Record and Play buttons right before you want to begin recording. Refer to your ADAT manual for details.

Using MIDI Machine Control (MMC) with a BRC

Conﬁguring MIDI

Macintosh OMS Conﬁguration

1 Make sure that OMS has been recognized

by your MIDI interface.

2 Make sure you have a device called the

BRC. OMS includes a preset for the BRC.

3 In OMS, make sure that the BRC is set to

“RECEIVE MMC” and sends and receives MTC. You do not need to enable any receive channels.

Windows

Make sure your MIDI interface is properly connected and recognized by your system. In Windows, Pro Tools popup menus of MIDI ports simply list the available hardware MIDI ports of the currently installed MIDI Interface.

This section provides an example of how you can utilize MIDI Machine Control in your synchronized Pro Tools/ADAT system. MMC can often solve problems you may experience when trying to control one device from another’s transport while using certain combinations of sync peripherals. Refer to the Pro Tools Reference Guide for details on using MMC with Pro Tools.

In this setup, Pro Tools is the transport master in a BRC/ADAT system using MIDI Machine Control (MMC).

ADAT Bridge I/O38

Conﬁguring the BRC

Before you configure the BRC, make sure a tape is in the ADAT and that the correct start time is selected.

1 Press the GEN SYNC button on the BRC. 2 Press the EDIT button just (just to the

right of the GEN SYNC button), then press GEN SYNC until Generate Sync-MIDI is displayed in the display. If MTC is not already selected as the Generate Sync MIDI choice, use the up/down arrows in the BRC’s keypad (the lowercase/uppercase keys) to display MTC.

3 With MTC selected, press the EDIT but-

ton to exit edit mode.

Pro Tools needs to send an MMC message that will tell the BRC what start time to go to, but Pro Tools is going to be waiting for the time code to come back from the BRC when the ADATs begin to play.

Conﬁguring Pro Tools

1 Choose Setups > Peripherals and open

the Peripherals/Synchronization window.

2 Select “Generic time code reader” as the

synchronization Device, then choose the port that your MIDI interface is connected to (if in doubt, select Any).

3 Now click the Machine Control tab to

open the Peripherals/Machine Control page.

4 In the MIDI Machine Control section (in

the lower left of the window), do the following:

• Enable MIDI Machine Control

• Set the MMC port by selecting BRC (Macintosh) or the appropriate hardware port (Windows) from the Send To popup, and leave the (channel) ID for the BRC set to 127

5 Click OK to close the Peripherals win-

dow.

6 Choose Windows > Show Session Setup. 7 Check to make sure the session start time

is correct for the current ADAT project.

8 Put Pro Tools online by clicking the On-

line button in the Pro Tools Transport window.

9 Press the Play button in the Pro Tools

Transport window and the ADATs should locate to the current Pro Tools playback location.

Troubleshooting MMC

If you press Play and the ADATs locate but Pro Tools won’t start, make sure that Pro Tools is getting time code. To do this, press Play on the BRC and check the Current Time field in Pro Tools Session Setup window to make sure Pro Tools is receiving time code. If it isn’t, check your cable connections.

On the Macintosh, double-check your OMS configuration. In Windows, check to make sure your MIDI interface is properly connected and recognized by your system.

If the ADATs do not locate, check your settings in the Peripherals > Synchronization window.

Chapter 5: Synchronizing Pro Tools and ADAT with an Alesis BRC 39

ADAT Bridge I/O40

chapter 6

Synchronizing Pro Tools and ADAT Using a JL Cooper DataSync2

serial or USB cable to

Standard MIDI Interface

modem, printer, or USB port

JL Cooper DataSync 2

TO ADAT

FROM ADAT

SYNC IN

SYNC OUT

optical cables in/out

Digidesign ADAT Bridge

MIDI INMERGING INSMPTE OUT MIDI OUT

9-pin sync in/out

to Pro Tools card

MIDI IN

MIDI OUT

MIDI in/out

MAC SERIAL

ADAT 1

ADAT 2

Computer

Interface Y-cable

50-pin

interface cables

Pro Tools card

Figure 4. Connections for the JL Cooper DataSync2

Chapter 6: Synchronizing Pro Tools and ADAT Using a JL Cooper DataSync2 41

Hardware Setup

Recording Tracks from an ADAT to Pro Tools with a DataSync2

The JL Cooper DataSync2™ translates the ADAT-proprietary ABS time reference signal embedded on ADAT tapes into MTC. The MTC is sent to your computer and used to trigger Pro Tools from the ADAT transport. This allows synchronized audio playback, recording, and track transfer between Pro Tools and ADAT with 1/4 frame accuracy or better. For near-sample accurate sync, add a Digidesign USD.

To connect this setup:

1 Make the primary connections as ex-

plained in “Primary Connections (Bridge I/O to Pro Tools and ADAT)” on page 10.

2 Make the 9-pin sync connections be-

tween the DataSync2 and your ADAT(s) as shown in the illustration.

3 Connect the MIDI In and MIDI Out of

the DataSync2 to an appropriate MIDI In and MIDI Out of your MIDI interface.

This setup explains how to perform a synchronized ADAT-to-Pro Tools track transfer.

To transfer audio from ADAT to Pro Tools:

1 Connect the DataSync and MIDI Inter-

face to your system as shown in Chapter 2.

On the ADAT:

2 Set the ADAT’s clock to Internal.

On the DataSync2:

3 Turn on the DataSync2 after you’ve

turned on the ADAT. This is necessary in order for the DataSync2 to communicate properly with the ADAT.

4 Set the desired frame rate on the

DataSync2 by pressing the mode button. You must do this in order for the DataSync to output SMPTE/MTC.

5 Enable MTC on the DataSync2 by press-

ing the MTC On button.

Software Conﬁguration

The following example uses a JL Cooper DataSync2 and MIDI Interface to Slave Pro Tools to the ADAT. In this case, the ADAT provides both the clock reference signal and the positional reference, and the Pro Tools Transport is controlled by the ADAT. This enables you to synchronize the ADAT and Pro Tools with better than 1/4 frame accuracy. To achieve near-sample accuracy, a USD or other Slave Clock-capable sync peripheral is required.

ADAT Bridge I/O42

Conﬁguring OMS Setup for the DataSync2 (Macintosh Only)

If you are using Pro Tools on a Windows computer, skip these steps.

6 Conﬁgure the DataSync2 and your MIDI

interface in OMS.

• Create a device for the DataSync2.

• Enable Send and Receive MTC for the DataSync2.

• Connect the DataSync2 to the appropriate MIDI port.

7 Save the DataSync2/MIDI interface con-

ﬁguration document as your current OMS setup.

Conﬁguring the DataSync2 in OMS

In Pro Tools:

8 In Pro Tools, choose Setups > Peripherals.

From the Synchronization Device pop-up, choose Generic MTC Reader. From the Port pop-up, choose the device that you deﬁned earlier in the OMS Studio Setup window (in this case, the DataSync2). Alternatively, if the name of the OMS device does not appear here, choose the serial port where your MIDI interface is connected.

9 In the Pro Tools Session Setup window

• Set Channel 1–2 input to ADAT.

• Set the Pro Tools Sync Mode to ADAT Optical.

• Choose the sample rate that matches the material on the ADATs.

• Choose the SMPTE frame rate that matches the rate chosen on the DataSync2.

10 In Pro Tools, create the number of des-

tination audio tracks you want to transfer from the ADAT(s). Make sure the destination tracks each have a different voice assignment in the Pro Tools session.

11 Use the Input Selector of each destina-

tion track to assign its input. Inputs 1-8 correspond to the ADAT Bridge I/O’s Group A inputs. Inputs 9-16 correspond to ADAT Bridge I/O’s Group B inputs. If you have additional ADAT Bridges/ADATs, assign their inputs as well. (With Ch 1–2 input set to ADAT, Pro Tools automatically sets I/O pop-ups to ADAT Bridge Group A/B input & output labels.)

12 Select a Pro Tools monitoring mode

(Auto Input Monitor or Input Only Monitor).

13 Choose Display > Time Code. 14 Choose Setups > Preferences, and then

click Operations. Choose the desired Pro Tools online recording mode:

• Record Online at Time Code (or ADAT) Lock – or –

• Record Online at Insertion/Selection.

If you are not familiar with these modes, refer the to the Pro Tools Reference Guide.

15 Record enable your Pro Tools destina-

tion tracks.

16 At this point, you may want to conﬁrm

that time code is being received by Pro Tools. Do this by pressing Play on the ADAT. The Current Time counter in the upper right hand corner of the Pro Tools Session Setup window should begin running. Make a note of the SMPTE frame number where the time starts. If there appears to be an offset, you’ll need to enter the offset number as the Pro Tools session start time in the Session Setup window.

Chapter 6: Synchronizing Pro Tools and ADAT Using a JL Cooper DataSync2 43

17 Rewind the ADAT to a location at least

10 seconds before the time code address at which you want to start Pro Tools recording. This provides adequate time for Pro Tools to lock to the time code and start recording.

18 Put Pro Tools online. 19 Click the Pro Tools Record button. 20 Press play on the ADAT’s transport.

Pro Tools begins online recording.

21 When you have ﬁnished recording,

press the ADAT’s Stop button. Pro Tools will stop recording.

Recording Tracks from Pro Tools to ADAT with a DataSync2

This section explains how to perform a synchronized Pro Tools-to-ADAT track transfer. In this case Pro Tools provides the clock reference signal and the ADAT provides the positional reference. If you are laying audio back to a specific location on an ADAT tape (after editing or processing them in Pro Tools, for example), you should cue the ADAT tape near the point where you want to playback.

Also, be aware that because this is not a sample-accurate transfer, the tracks that you lay back may be a few samples off. Sample accuracy is generally only a critical concern with phase-synchronous material such as audio recorded with multiple microphones (a pair of drum overhead mics, for example).

In such cases, you should transfer the phase-synchronous material in a single pass. That way, whatever delay is introduced will be introduced equally to the material, maintaining its phase coherence.

To transfer audio from Pro Tools to ADAT:

1 Make sure the DataSync2 is conﬁgured as

described in the previous ADAT-toPro Tools setup.

2 On the ADAT, set the ADAT’s clock to

Digital.

3 Make sure that the ADAT tape is format-

ted to the same sample rate as the Pro Tools material you intend to transfer.

4 On the ADAT, record enable the destina-

tion ADAT tracks. Make sure that the same tracks are not conﬁgured as Pro Tools input sources or a feedback loop will occur.

5 Use the Output Selector of each Pro Tools

track to assign its output (explained in the previous setup instructions).

6 Put Pro Tools online. 7 Rewind the ADAT to a location at least 10

seconds before the time at which you want to start Pro Tools playback.

8 Press the ADAT’s Record and Play but-

tons. Pro Tools locks to the ADAT and begins playback. The Pro Tools material is then recorded to ADAT.

9 When you have ﬁnished recording, click

the Stop button on the ADAT.

▲ If you are recording to the ADAT and audio

already exists before the punch point, you may want to manually “punch in” to avoid erasing a portion of the existing audio that you want keep. To do this, simply press Play on the BRC to start the ADAT/Pro Tools rolling, then press the BRC’s Record and Play buttons right before you want to begin recording. Refer to your ADAT manual for details.

ADAT Bridge I/O44

chapter 7

Synchronizing Pro Tools and ADAT using the MTP AV

Mark of the Unicorn MTP AV™

256x clock signal (MTP AV out)

ADAT 1

ADAT 2

optical cables in/out

Digidesign ADAT Bridge

9-pin ADAT Sync cable

to Pro Tools card

serial or USB cable to

modem, printer, or USB port

Computer

Interface Y-cable

50-pin

interface cables

Pro Tools card

256x clock signal, to ADAT Bridge Slave Clock IN

Figure 5. Cabling Example for the MTP AV

Chapter 7: Synchronizing Pro Tools and ADAT using the MTP AV 45

Hardware Setup

The Mark of the Unicorn MTP AV provides extensive MIDI and sync capabilities to synchronize your Pro Tools/ADAT system. In this role, the MTP AV translates MMC from Pro Tools to ADAT-proprietary ABS sync (allowing Pro Tools to be the positional/transport master) and it functions as the clock master.

to MMC from Pro Tools, sending ADAT Sync to the ADAT along with MTC to Pro Tools.

Conﬁguring OMS

The simplest way to configure the MTP AV is to use the “MTP/Express Console” application (included with your MTP AV) to navigate through the MTP AV’s front panel via software.

To connect this system:

1 Connect a 9-pin cable from the MTP AV’s

ADAT 9-pin Sync Out port to your primary ADAT’s 9-pin Sync In port.

2 Connect “256x clock OUT” from the

MTP AV to the “Slave Clock In” port on the ADAT Bridge I/O.

3 Make sure that the serial or USB connec-

tion from the MTP AV to your CPU is correct.

MTP AV Settings:

◆ MTP AV clock must be set to Internal.

◆ Word Clock Out must be set to “Digi.”

◆ The MTP AV’s MMC ID must match

Pro Tools.

Software Conﬁguration

The MTP AV has only ADAT Sync, Word Clock (1x) and Slave Clock (256x) outs, and therefore has to be the clock master. This setup requires the use of Pro Tools MIDI Machine Control (MMC) output capabilities (this is because, with only clock outputs, the MTP cannot “listen” to the ADAT). Essentially, the MTP AV responds

Make sure the MTP AV’s MMC ID number matches that set in Pro Tools Peripherals/MachineControl window.

☞ Refer to the Pro Tools Reference Guide for

details on conﬁguring Pro Tools to output MMC.

To record from ADAT to Pro Tools:

1 In the Session Setup window:

• Set Pro Tools Sync Mode to Internal. (Do not select ADAT Optical — Pro Tools must be slaved to the MTP AV).

• Set Channel 1-2 Input to ADAT (or Analog if the ADAT Bridge is not your primary audio interface).

2 Create, name and record enable destina-

tion tracks in Pro Tools.

3 Cue the ADAT to at location at least 10

seconds prior to where you want Pro Tools to begin recording.

4 Click the Record button on Pro Tools

Transport.

5 Press Play to begin recording to

Pro Tools.

ADAT Bridge I/O46

chapter 8

Synchronizing Pro Tools and ADAT Using a Digital TimePiece

serial cable to

Word clock (from ADAT Bridge)

IN OUT

SMPTE VIDEO

Mark of the Unicorn Digital TimePiece™

OUT

S/PDIF

WORD 1x

WORD 256x

ADAT 1

DA-88 Sync OUT

ADAT Sync INDA-88 Sync IN

ADAT Sync OUT

Sony 9-pin

9-pin cable

modem or printer port

REMOTE EXPANSION

OUT

IN OUT IN

MIDI 1MIDI 2

Computer

Pro Tools card

ADAT 2

optical cables in/out

Digidesign ADAT Bridge

to Pro Tools card

Word clock(1x) signal from ADAT Bridge (I/O)

Figure 6. Connecting a DTP to an ADAT Bridge, Pro Tools and ADAT

Chapter 8: Synchronizing Pro Tools and ADAT Using a Digital TimePiece 47

Interface Y-cable

50-pin

interface cables

Hardware Setup

Recording Tracks from ADAT to Pro Tools with a DTP

The following sample setup allows Pro Tools to act as the positional and clock (transport) master using MMC and Word Clock, using a Mark of the Unicorn Digital TimePiece™ (DTP).

To connect this setup:

1 Connect the DTP to the ADAT by attach-

ing 9-pin sync cables between these devices as shown in the illustration above.

2 Connect the DTP to your computer’s mo-

dem or printer port via serial cable as shown in the illustration.

3 Connect Word Clock Out from the ADAT

Bridge to the Word 1x In port on the DTP.

DTP Settings:

◆ Timebase Source set to Word 1x and

MTC.

Software Conﬁguration

This setup explains how to perform a synchronized ADAT-to-Pro Tools track transfer. Pro Tools functions as both transport and clock master.

To transfer audio from ADAT to Pro Tools:

1 Connect the DTP to your system.

Conﬁguring the DTP in OMS Setup (Macintosh Only)

2 In OMS Setup, create an OMS device for

the DTP if you haven’t already done so.

3 In OMS’ MIDI Device Info dialog, enable

send and receive MTC for the DTP.

4 In the OMS Setup window, connect the

DTP to the appropriate MIDI port.

5 Save the DTP conﬁguration document as

your current OMS setup.

The DTP has the ability to translate the ADAT-proprietary ABS time reference signal embedded on ADAT tapes into MIDI Time Code. This enables you to synchronize the ADAT and Pro Tools with nearsample accuracy.

The DTP allows you to either control the Pro Tools transport via the ADAT, or control the ADAT’s transport via Pro Tools. In either case, Pro Tools should provide the master clock reference signal.

ADAT Bridge I/O48

Conﬁguring the DTP in OMS

On the DTP:

6 Press the source button until both the

MTC and Word 1x LEDs are lit.

7 Press the format button and choose the

desired frame rate.

In Pro Tools:

8 In the Pro Tools Session Setup window,

set Channel 1–2 input to ADAT.

9 In the Pro Tools Session Setup window,

set the Pro Tools Sync Mode to Internal.

10 In the Pro Tools Session Setup window,

choose the sample rate that matches the material on the ADAT(s).

11 In the Pro Tools Session Setup window,

choose the SMPTE frame rate that matches the rate chosen on the DTP.

12 Create the number of destination audio

tracks you want to transfer from the ADAT(s). Make sure the destination tracks each have a different voice assignment in the Pro Tools session.

13 Use the Input Selector of each destina-

tion track to assign its input. Inputs 1–8 correspond to the ADAT Bridge I/O’s Group A inputs. Inputs 9–16 correspond to ADAT Bridge I/O’s Group B inputs. If you have additional ADAT Bridges/ADATs, assign their inputs as well. (When Ch 1–2 input set to ADAT, Pro Tools automatically sets I/O pop-ups to ADAT Bridge Group A/B input & output labels.)

14 Select a Pro Tools monitoring mode

(Auto Input Monitor or Input Only Monitor). Use Input Only Monitor if you want to be able to hear incoming material on record-enabled Pro Tools tracks before you initiate recording. Use Auto Input Monitor to hear incoming material only during actual recording.

15 Choose Time Code from the Pro Tools

Display menu so that the Pro Tools counter will display time in SMPTE frames.

16 Choose the desired Pro Tools online re-

cording mode: Record Online at Time Code Lock, or Record Online at Insertion/Selection. To do this, choose Preferences from the Pro Tools Setups menu. Click the Operation button and enable the desired mode at the bottom of this dialog. If you are not familiar with these modes, refer the explanation in your Pro Tools Reference Guide.

17 Set the Pro Tools pre-roll time to at least

10 seconds.

18 Click the Pro Tools Record button 19 Click the Pro Tools Play button. 20 When you have ﬁnished recording,

click Pro Tool’s Stop button. The ADAT will stop recording.

Recording Tracks from Pro Tools to ADAT with a DTP

This setup explains how to perform a synchronized Pro Tools-to-ADAT track transfer using the DTP.

To transfer audio from Pro Tools to ADAT:

1 Make sure your DTP is conﬁgured as de-

scribed in the previous procedure, “Recording Tracks from ADAT to Pro Tools with a DTP” on page 48.

2 Make sure that the ADAT tape is format-

ted to the same sample rate as the Pro Tools material you intend to transfer.

3 On the ADAT, record enable the destina-

tion ADAT tracks. Make sure that the same tracks are not conﬁgured as Pro Tools input sources or a feedback loop will occur.

4 In Pro Tools, open the session with the

audio you want to transfer to the ADAT.

5 In the Pro Tools Session Setup window,

set Channel 1–2 input to ADAT.

Chapter 8: Synchronizing Pro Tools and ADAT Using a Digital TimePiece 49

6 In the Pro Tools Session Setup window,

set the Pro Tools Sync Mode to Internal.

7 Use the Output Selector of each Pro Tools

track to assign its output.

• If you are using an ADAT Bridge I/O as your master Pro Tools interface, Pro Tools channel 1–8 outputs correspond to Group A optical outputs (1-8) and channel outputs 9–16 correspond to Group B optical outputs (9–16).

• If your ADAT Bridge I/O is not your master Pro Tools interface, you must use the output selector to choose the inputs for each destination track according to how your Audio Interfaces are ordered.

8 Set the Pro Tools pre-roll time to at least

10 seconds.

9 Click the Pro Tools Play button. 10 At the point at which you want to begin

recording on the ADAT, press the ADAT’s Record and Play buttons.

11 When you have ﬁnished recording,

click the Pro Tools Stop button.

ADAT Bridge I/O50

chapter 9

Synchronizing Pro Tools and ADAT using an Opcode Studio 64XTC

Opcode 64XTC™

256x clock signal (out)

ADAT 1

ADAT 2

Digidesign ADAT Bridge

9-pin ADAT Sync cable

optical cables in/out

256x clock signal, to ADAT Bridge Slave Clock IN

to Pro Tools card

22A34 123 411A

serial cable to

modem or printer port

MIDI INMIDI OUT

Computer

Interface Y-cable

50-pin

interface cables

Pro Tools card

Figure 7. Connecting a Studio 64XTC to an ADAT Bridge, Pro Tools and ADATs

Chapter 9: Synchronizing Pro Tools and ADAT using an Opcode Studio 64XTC 51

Hardware Setup

Opcode’s Studio 64 XTC has Word Clock Super Clock outs, ADAT Sync out, and SMPTE in and out. Because the 64XTC has only 256x & ADAT Sync Outs, it must always be the clock master in a Pro Tools system. The following setup allows you to synchronize your system with Pro Tools being the positional/transport master.

To connect this setup:

1 Connect the ADAT Sync Out from the

64XTC to the Sync In on your primary ADAT.

2 Connect the Studio 64XTC’s 256x Clock

Out to the Slave Clock (256x) In of your primary audio interface (ADAT Bridge I/O or other). If you have multiple audio interfaces, daisy-chain the Slave Clock signal as described previously.

3 Make sure your 64XTC’s serial cable is

correctly connected to your CPU.

Software Conﬁguration

Macintosh

On the Macintosh, the 64XTC requires OMS.

OMS Setup (Macintosh Only)

Before you begin, confirm that you have installed and configured the 64XTC, and that it is recognized by OMS (i.e., it is shown in OMS Setup). Once the XTC is recognized by OMS, a “Studio 64 XTC” pulldown menu appears in the OMS application.

1 Add a new device and assign it to Port 5

(even though the 64XTC only has four physical ports, conﬁgure this new device for “port 5”). Refer to your OMS documentation for details on creating an OMS device or assigning its port.

2 Name the device ADAT, and for MMC,

enable Sends and Receives. Nothing else need be checked.

3 Click OK to close the New Device win-

dow. In OMS Setup, the 64XTC and ADAT device should appear similar to the following (your setup will probably include other devices than the example shown below):

Windows

If you are using the 64XTC on Windows, you must first install the 64XTC drivers and confirm that the device is operating correctly. The 64XTC ports will appear in Pro Tools as available sync sources/destinations.

ADAT Bridge I/O52

OMS Setup with an ADAT device deﬁned and conﬁgured to use “port 5”

4 In OMS, choose Studio 64XTC > Edit Pro-

grams. Conﬁgure it similar to the following:

Studio 64XTC Edit Programs window

5 Select Store Current Program in the Stu-

dio 64XTC menu to save the settings.

In Pro Tools:

6 In the Peripherals/Synchronization win-

dow select “Generic Device” in Synchronization and “Studio 64 XTC” for Port.

7 At the top of the Peripherals dialog, click

the Machine Control button to open the Machine Control Peripherals window. There, enable Machine Control (at the bottom of the window) and for “Send to” select ADAT (this is the device/port you just deﬁned in OMS Setups) and set its ID to

127.

8 Click OK to close the Peripherals dialog. 9 Once configured, the 64XTC will receive

transport commands from Pro Tools via MMC and send those commands to the ADAT via OMS and the 64XTC. The 64XTC then converts that into ADAT Sync, which it sends to the ADAT via the 9-pin connection. The 64 XTC is providing the master clock reference to Pro Tools via 256x (Slave Clock) connection.

Chapter 9: Synchronizing Pro Tools and ADAT using an Opcode Studio 64XTC 53

ADAT Bridge I/O54

chapter 10

Connecting Pro Tools to an ADAT-Compatible Digital Mixer

You can use your ADAT Bridge I/O to connect your Pro Tools system with an ADATcompatible, ADAT optical-equipped digital mixing console such as the Yamaha 02R, Ramsa DA7, and others.

Yamaha 02R or equivalent ADAT-optical equipped

digital mixing console

optical 1

optical 2

in out

optical in/out

Digidesign ADAT Bridge

to Pro Tools card

ADAT Bridge I/O linking between Pro Tools and a digital mixing console

Computer

Pro Tools Y-cable

50-pin

interface cables

Pro Tools card

To connect the ADAT Bridge I/O to a ADATcompatible digital mixing console:

1 Follow the basic setup instructions previ-

ously given in “Primary Connections (Bridge I/O to Pro Tools and ADAT)” on page 10, but instead of making connections to an ADAT:

2 Connect an optical cable from Optical #1

Out on the ADAT Bridge I/O to optical input #1 on the digital mixing console.

3 Connect a an optical cable from optical

output #1 on the digital mixing console to Optical #1 In on the ADAT Bridge I/O.

4 Connect an optical cable from Optical #2

Out on the ADAT Bridge I/O to optical input #2 on the digital mixing console.

5 Connect an optical cable from optical

output #2 on the digital mixing console to Optical #2 In on the ADAT Bridge I/O.

6 If your digital console does not have the

ability to lock to the Word Clock signal carried over these optical connections, connect the Word Clock out of the ADAT Bridge I/O to the Word Clock in of the digital console. This is necessary for both systems to be able to synchronize to the same master clock reference.

☞ Refer to the documentation that came with

your digital console for additional installation and operational information.

Chapter 10: Connecting Pro Tools to an ADAT-Compatible Digital Mixer 55

ADAT Bridge I/O56

appendix a

ADAT Bridge I/O Technical Speciﬁcations

Analog Performance

Audio Output

Actively balanced (unbalanced operation also supported)

Signal-to-Noise Ratio

99 dB A-weighted

97 dB unweighted, 22 Hz - 22 kHz bandwidth

THD + N

<.002%, 0 dBFS@1 kHz, 22 Hz - 22 kHz bandwidth

Maximum Output Level

+18 dBu +/- 1 dB (at +4 dBu gain setting)

Frequency Response

20 Hz - 20 kHz ± 1 dB

Connectors

Analog Output

Two 1/4” TRS connectors, tip “+”, ring “–“

S/PDIF In

Level 0 to .5 V (low), 2.0 to 6.0 V (high)

Connector Gold-plated coaxial RCA jack

S/PDIF Out

Level TTL (3.3 V typical)

Connector Gold-plated coaxial RCA jack

AES/EBU In

Level 5 V p-p at 110 ohms (pin 2 hot)

Connector XLR female per IEC 268-12

AES/EBU Out

Level V p-p (typ) at 110 ohms (pin 2 hot)

Gain Settings

+4 dBu and –10 dBV, software selectable

Digital-to-Analog Converter

24-bit D/A converters, Delta-Sigma

Connector XLR male per IEC 268-12

Word Clock Out

Level TTL (3.3 V typical)

Connector BNC Female

Appendix A: ADAT Bridge I/O Technical Speciﬁcations 57

Slave Clock In

Front-Panel Display

Level 0 to .5 V (low), 2.0 to 6.0 V (high)

Connector BNC Female

Frequency 256x word clock

Slave Clock Out

Level TTL (3.3 V typical)

Connector BNC Female

Frequency 256x word clock

Optical In/Out

Two pairs of EIAJ ﬁber optic connectors

Computer ports

Two 50-pin SCSI connectors

Miscellaneous

Digital I/O Resolution

24 bit

Optical Resolution

24 bit

18 green and yellow LEDs arranged in two rows by 9 columns

Optical compatibility

Includes Alesis ADAT, ADAT XT, M20 and compatible products

Physical Speciﬁcations

Height:1RU/1.75" (4.45 cm) Width:19.0" (48.26 cm) Depth:10.5" (26.67 cm)

Power Requirements

Voltage

85 to 264 VAC

Frequency

47 to 63 Hz, autoswitching

Wattage

5 W Typical, 30 W max +5V:2.66 W +15V:1.32 W –15V:0.42 W

Sample Rates

44.1 kHz or 48 kHz, software selectable

Sync Modes

Internal, ADAT optical, digital audio, slave clock

ADAT Bridge I/O58

Connector

3-pin, AC and ground (IEC style)

Operating Temperature

32 to 131 degrees F (0 to 55 degrees C)

Storage Temperature

–40 to 176 degrees F (–40 to 80 degrees C)

Relative Humidity

0 to 95%, non-condensing

Weight

4.4 lbs (2.4 kg)

Vibration Resistance

5 mm displacement, 10 to 55 Hz, each axis

Shock

5 G max

Appendix A: ADAT Bridge I/O Technical Speciﬁcations 59

ADAT Bridge I/O60

index

Numerics

-10 dBV 21 +4 dBu 21 60-pin to 50-pin interface cable 5 9-pin sync 11

ABS time reference 42 AC

power cable 5 Power Input 10

ADAT

blackface firmware 3 internal clock 17 M-20 firmware 3 model LX20 firmware 3 original firmware 3 required firmware 3 XT

sample rate and BRC 34 XT firmware 3 XT20 firmware 3

ADAT Bridge I/O

primary connections 5

ADAT optical 20

cables 5

AES/EBU In/Out 9 amplifier 3 analog inputs 23, 25 analog monitoring 1 Analog Outputs 9

connecting 14

Apple Serial DMA, disable 28 audio

transferring 21

Auto Input Monitor 22

BNC

cable length affecting performance 5 slave clock cable 5

BRC

and 44.1k sessions 34 syncing Pro Tools and ADAT with 33 using with MMC 38

cables provided 5 Ch 1-2 Input 20 Channel 1-2 input 23 clicks and pops 5, 34 clock

ADAT internal 17 general 5

Computer A connector 9 Computer B connector 9 connect

BRC 33 DataSync2 41 Digital Mixing Console 55 Digital TimePiece 47 MIDI TimePiece AV 45 Opcode 64XTC 51

DA30

special settings 21

DAT 21 DataSync2 44 Device pop-up 28 DigiSerial Port 34 DigiSetup file, trashing 18 Digital Format indicator 8 Digital indicator 7

Index 61

digital inputs 25 digital mixer 55 digital noise, avoiding 5

external sync, losing 30

firmware

required 3

GEN SYNC 38 Generic MTC Reader 43

Input Only Monitor 22 Input Selector 43 INT ADAT clock setting 17 interface cable 5 Internal indicator 7 Internal sync mode

and external auto-switching 30

laser 11 lightpipe 2

M20 21 Master 29 master ADAT 11 master clock device 29 master clock reference 28 MDMs 1 MIDI Device Info 27 MIDI interface 28 MIDI Time Code 27 mixing console 3 MMC 38

port 39

modes for monitoring audio 22 modular digital multitrack (MDM) 1

monitoring modes 22 monitoring system 3

offset 43 OMS 27

Setup application 27

online 39 Opcode 64XTC setup diagram 51 optical cables 5 Optical In/Out #1 9 Optical In/Out #2 9

Playback Engine 18, 20 polarity 23 pops and clicks 5, 34 pops/clicks 5 Port 5

in 64XTC OMS Setup 52

power cable 5 Power Switch 7 power up 17 Pro Tools

configuring 18

Record Online

at Insertion/Selection 36 at Time Code (or ADAT) Lock 36

recording, unsynchronized 22 required ADAT firmware 3

S/PDIF In/Out 10 Sample Rate 8, 19 Serial DMA 28 Session Setup 39 slave clock cable 5 Slave Clock In/Out 10 SMPTE frame rate 43 SMPTE Out 35 speakers 3

ADAT Bridge I/O62

standalone mode 31

channels transferred by ADAT 31 digital input channels0 transferred 32 using 31

sync

auto-detect external vs internal 30

Sync In 11 Sync Mode 19, 43 Sync Mode LEDs 7 Sync Out 11 synchronized PT/ADAT 28 System Requirements 3

Tascam DA30

special settings 21

transport master 29 trashing the DigiSetup file 18

Universal Slave Driver

and BRC 34

Use Apple Serial DMA, disable 28 using ADAT Bridge I/O without Pro Tools 31 using MMC with a BRC 38

Windows

and sync 26

Word Clock Out 10

Index 63

ADAT Bridge I/O64

DigiDesign ADAT Bridge I/O User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introducing the 24-Bit ADAT Bridge I/O

ADAT Bridge I/O Features

Capabilities

About This Guide

ADAT and ADAT-Compatible Devices

Conventions Used in This Guide

System Requirements

ADAT Firmware Requirements

Connecting Your Studio

Primary System Connections (all systems)

Synchronization Connections (optional)

Before You Begin

These cables are provided with your ADAT Bridge I/O:

About 8-Channel Groups

1. Power Switch

2. Sync Mode LEDs

Internal

ADAT

Digital

Slave

4. Sample Rate

5. Digital Format

3. Channel 1–2 Input

1. Analog Outputs

2. Optical In/Out #1

3. Optical In/Out #2

4. Computer A

5. Computer B

6. AES/EBU In/Out

7. S/PDIF In/Out

8. Slave Clock In/Out

9. Word Clock Out

10. AC Power Input

Optical Connections

Quick Connections

About ADAT Sync 9-pin

Quick Connections

Step 3: Clock Connections

Step 4: Stereo Monitor Connections (optional)

Synchronization Connections

Using Your System

Powering Up Your System

Basic Settings

Trashing the DigiSetup File

Sync Mode Options

ADAT Bridge as Primary Interface

Switching Output Levels

ADAT Bridge not Primary Interface

OMS Example Setup

Choosing the Master Clock Source

Choosing the Transport Master

Using the ADAT Bridge I/O in Standalone Mode

ADAT Channels Transferred

Using Standalone Mode

Hardware Setup

About 44.1 Sessions with the BRC

Using a Digidesign USD with a BRC

Using MIDI Machine Control (MMC) with a BRC

Windows

Troubleshooting MMC

Hardware Setup

Hardware Setup

Hardware Setup

Hardware Setup

Macintosh

OMS Setup (Macintosh Only)

Windows

Analog Performance

Audio Output

Signal-to-Noise Ratio

THD + N

Maximum Output Level

Frequency Response

Connectors

Analog Output

S/PDIF In