USD Guide Protools 2

Digidesign Inc.

3401-A Hillview AvenuePalo Alto, CA 94304 USA

tel: 6508427900fax: 6508427999

Technical Support (USA)

65084266996508564275

Product Information (USA)

65084266028003332137

Universal Slave Driver

Users Guide

Version 5.0.1Fax on Demand (USA)1-888-USE-DIGI (873-3444)

World Wide Webwww.digidesign.com

Digidesign FTP Siteftp.digidesign.com

Copyright

This Users 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 932707422-00 Rev A 5/00

contents

Chapter 1. Introduction

. . . . .

System Requirements

. . . .

Compatibility Information

. .

About This Guide

. . . . . . . .

USD Synchronization Suppo

Chapter 2. Installing the USD

Connecting USD to a Compu

Connecting USD to Pro Tool

Connecting AC Power

. . . .

Connecting Machines, Deck

Software Installation

. . . . .

Getting Started

. . . . . . . . .

Updating USD Firmware

. . .

Configuring OMS

. . . . . . . .

Troubleshooting

. . . . . . . .

Chapter 3. USD Hardware and

USD Front Panel

. . . . . . . .

USD Rear Panel

. . . . . . . .

USD Setup Software

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

rt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

ter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

s, and Other Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Software Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Contents iii


iv

Chapter 4. Using the USD

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Control Options

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

USD Controls in Pro Tools, USD Setup, and Front Panel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Sync Setup

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Clock References

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Positional References

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Generating and Regeneratin

Generating a Window Burn

Chapter 5. Additional Operati

Front Panel Generator/Para

Managing and Selecting Vid

Using Fader Start

. . . . . . .

Calibrating the USD Oscillat

Restoring Factory Settings

.

Appendix A. Additional Synch

Appendix B. Technical Specs

Appendix C. Wiring Diagrams

Index

. . . . . . . . . . . . . . . . . . . . . g Time Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

onal Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55meter Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

eo Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

or . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

ronization Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

chapter 1

Introduction

The Universal Slave Driver (UStipurpose synchronization devports all major time code and cence standards used in audio, vand multimedia production.

USD with Pro Tools

With Pro Tools MIX/MIXplus aPro Tools 24 systems, the USD near-sample-accurate lock to tithrough the DigiSerial Port con

Standalone Mode

The USD can also be used as a synchronization converter, timerator, clock generator and timacter generator. Throughout thterm standalone refers to sysing USD but

not

using Pro Tool

USD Setup

USD Setup is a remote control for the USD. USD Setup can be uwithout Pro Tools on any suppintosh or Windows computer.

Chapter 1: Introduction 1D) is a mul-ice. It sup-lock refer-ideo, film,

nd provides me code nection.

standalone e code gen-e code char-is guide, the tems utiliz-s.

application sed with or

orted Mac-

System Requiremen

Macintosh Pro Tools System

Digidesign-qualified Macintoputer

17-inch or larger color moni A Pro Tools MIX/MIXplus or

Pro Tools 24 system or

A Pro Tools III system

] Serial port requirements vary dthe type of Pro Tools system. SeePort Requirements on page 2 fo

Windows Pro Tools Systems

Digidesign-qualified Windowputer

A Pro Tool MIX/MIXplus or Psystemts

s

sh com-

tor

epending on USD Serial r details

s NT com-

ro Tools 24


2

USD Setup Macintosh and Windows

USD Setup provides standalone software control of the USD, and firmware updating capabilities. USD Setup can be used with or without Pro Tools for complete control of all USD features. In order to use USD Setup, you must have the following:

u

An available serial or Com potosh and Windows, respectivelUSD Setup is not available whenconnected to a DigiSerial Port

Minimum Macintosh RequiremenUSD Setup

u

68K and Power Macintosh coquire Mac OS version 7.5 or higG3 Macintosh computers mustor higher. At least 2 MB of available RA Virtual Memory must be turn

the Macintosh Memory Con An available serial (modem o

port, or equivalent USB convUSD Serial Port Requiremenpage 2 for details.

Minimum Windows RequirementUSD Setup

Windows NT 4.0, or Window A Pentium-I/90 MHz process An available COM port. See

Port Requirements on page

USD Serial Port Requirements

Pro Tools MIX/MIXplus and Pro Tools 24 Systems

u

The USD must be connected to the DigiS-erial Port on the Digidesign MIX or d24

rt (Macin-y) the USD is

ts for

mputers re-her. Beige

run OS 8.5

Med off in

trol Panelr printer) erter. See ts on

s for

s 98 orUSD Serial

2 for details.

card (if multiple, use the card inslot).

USD with the G3 and G4

Under certain circumstances, fowhen running the USD Setup ucation, the USD must be conneconventional serial port. Manyvices, as well as Digidesigns Mtrol option, also require connconventional serial port. Since intosh G3 and G4 computers dtain a conventional serial port,nection to a conventional Maciport (modem or printer port) is this guide, you will need to utithe following adaptors: Stealth Serial Port, made by G

ree.com. This adaptor supporupdating of the USD.

gPort Serial Adaptor, made bTechnology. This adaptor supware updating of the USD.

USB Twin Serial Adaptor, mo28x, made by Keyspan. This anot support firmware updatiUSD.

Pro Tools III Systems

u The USD must be connecteddem or printer port, or equivalport adaptor the lowest

r example tility appli-cted to a MIDI de-achineCon-ection to a Power Mac-o not con- where con-ntosh serial called for in lize one of

eeTh-ts firmware

y Griffin ports firm-

del USA-daptor does ng of the

to the mo-ent serial

USD Setup

u

USD Setup requires its own connection from the USD to your computer for remote control of the USD:

Macintosh

A serial port (modem or printer, or equivalent serial port adapter) is re-quired for USD Setup MacintosUSD Setup does not work if thenected to a DigiSerial Port.

Windows

A COM port connectiquired for USD Setup Windowsdoes not work if the USD is conDigiSerial port.

USD Standalone, without Pro Too

If you are not using Pro Tools bUSD in standalone mode, no Uconnection is required unless ydo any of the following:

u

Use the USD for Variable Spe(VSO)

u

Configure Window burn par

u

Control the USD with USD S

If you do not connect USD to awill use the USD front panel toedit parameters. (See Control Opage 27 for details.)

USD Standalone with Remote Co

For software remote control usUSD Setup application, see USon page 3.

USD Cables

USD Serial Cable

A USD Serial cable is in-cluded to connect the USD to a Macin-tosh- or Windows-based Pro Tools DigiSerial Port (Pro Tools MIX, MIXplus, or Pro Tools 24 systems). This cable can

Chapter 1:

h. USD is con-

on is re-. USD Setup nected to a

ls

ut using the SD-to-CPU ou need to

ed Override

ameters

etup

CPU, you access and ptions on

ntrol

ing the D Setup

also be used to connect the UMacintosh serial port or equivport adaptor.

Windows USD Setup on Windoa standard 9-pin-to-25-pin modconnect the USD to a COM posupported Windows computer.is available from Digidesign thDigidesign dealer, or from mansupply stores.

Compatibility InformDigidesign can only assure comand provide support for devicetested and approved.

For a list of qualified computerdrives, SCSI accelerators, serial tors and hard drives, refer to thDigidesign compatibility documable from Digidesign by fax or Digidesign Web site.

] For a list of Digidesigns contaction, see the title page of this gui Introduction 3

SD to r a alent serial

ws requires em cable to rt on any This cable rough your y computer

ation patibility

s it has

s, diskette port conver-e latest ents, avail-

on the

t informa-de.


4

About This Guide

This guide assumes you understand the ba-sics of synchronization and time code, know how to operate devices that send or receive time code such as a video tape re-corder, and how to connect yoRefer to the documentation forhardware if necessary.

In addition, you should have astanding of the time code requiyour particular project.

Conventions Used in Th

Digidesign guides use the folloventions to indicate menu choicommands:

The following symbols are used to high-light important information:

]

User Tips

are helpful hints for getting the

most from your system.

Convention Action

File > Save Session Choose Safrom the Fi

Control+N Hold down key and pre

Option-click Hold down key and clicbutton

Right-click (Windows) Click with tmouse butur studio. your studio

n under-rements for

is Guidewing con-ces and key

] Important Notices include inforcould affect your data or the perfoyour system.

] Cross References point to relatin other Digidesign guides.

USD SynchronizatioSupport

Supported Positional Reference

LTC VITC Bi-Phase/Tach Internal Time Code Generato Serial Time Code (requires D

MachineControl option andsoftware version 5.0 or highevideo reference signal)

Supported Clock Reference Sour

Reference Video Composite Video Input Word Clock AES/EBU Null Pilot Tone Super Clock Internal Crystal Bi-phase/Tach LTC

ve Session le menu

the Control ss the N key

the Option k the mouse

he right tonmation that rmance of

ed sections

n

Sources

rigidesigns Pro Tools r, and a

ces

Output and Generation

Digidesign Super Clock (256x sample clock)

Word Clock (1x sample clock); AES/EBU null clock (AES digital black) VITC (if a video input is present) LTC MIDI Time Code (MTC)

Other Features

Front panel controls and a laplay of time code and param

Integrated control of USD fro Time Code Character Genera Fader start, provided through

put, for remote transport conselect Pro Tools fader movem

USD Setup software for MaciWindows

USD firmware that can be updtime for future upgradesChapter 1:

rge LED dis-etersm Pro Toolstor GPI out-trol from ent. ntosh and

ated at any Introduction 5


6

chapter 2

Installing the U

For USD with Pro Tools, installcludes the following steps: Connect the USD to your Pro

tem Connect your studio Install and configure USD so

Complete installation instructivided for each of these steps ththis chapter.

For standalone USD systems, ininstructions begin with ConnPower on page 10.

]

Make sure Pro Tools is already i

operating correctly before installin

Connecting USD to aComputer

Pro Tools systems require a USDputer connection, as explainedin Connecting USD to a Compage 7.

For standalone USD systems (wPro Tools), firmware updating USD Setup require a connectio

Chapter 2: Installing the USD 7SD

ation in-

Tools sys-

ftware

ons are pro-roughout

stallation ecting AC

nstalled and g the USD.

-to-com- beginning puter on

ithout and n to a Mac-

intosh serial port or Windows CFirmware updating is explaineding USD Firmware on page 14

In addition, USD Setup can be uware remote control of all USDUSD Setup requirements are lisware Installation on page 13.

About the USD Serial Cable

The USD includes a 4 meter (app12 foot) cable, designed to conUSD to a DigiSerial Port on a MWindows Pro Tools MIX/MIXpPro Tools 24 system, or to a Marial port (modem or printer).

For Windows NT systems, a stanto 25-pin modem cable is requnect the USD to a Windows COorder to use USD Setup. ContacDigidesign dealer if you need tone of these cables.

] If you choose to use a longer cait supports hardware handshakinmatic for these cables can be fouAppendix C: Wiring Diagrams Piments. OM port. in Updat-

.

sed for soft- features. ted in Soft-

roximately nect the acintosh or lus or cintosh se-

dard 9-pin ired to con-M port in t your

o acquire

ble, be sure g. A sche-nd in n Assign-


8

Pro Tools MIX/MIXplus or Pro Tools 24 Systems

(Macintosh and Windows)

To connect the USD to a Macintosh or Windows Pro Tools MIX/MIXplus or Pro Tools 24 system:

1

Make sure the power is switcboth the USD and the compute

2

Connect one end of the cableport labelled Mac Serial (whethMacintosh or a Windows comp

3

Connect the other end of the DigiSerial Port on your primaryMIX or d24 card (the Core card

4

Restore power to the USD, anyour computer.

USB Blue and White G3/G4 Example

n

Connect the USD Mac Serial port to the DigiSerial port.

n

Connect MachineControl (optional) to a GeeThree, Griffin, or Keyspan serial port adaptor (see USD Serial Port Require-

Connecting USD to a DigiSerial Port

MTC OUTMAC SERIALPC SERIAL

BI-PHASE / TACH / GPI

VIDEO REF 9-PIN OUT

9-PIN IN / AC

WORD CLOCKVIDEO

LTC

IN

AES

IN

AES

OUT

LTC

OUT

IN

OUT

IN

OUT

Mac Serial

to (Pro Audcab

DigiSerial Porthed off for r.

to the USD er using a uter).

cable to the Pro Tools ).

d restart

ments on page 2).

If using MIDI, connect a MIDI HUI to a GeeThree or Griffin seadaptor (see USD Serial Port Rments on page 2).

DigiSerial Port General Info

Pro Tools MIX and d24 cards feDigiSerial Port. Though this pocal in appearance to the serial poCPU, it is designed to only be u the USD proprietary serial co

or a serial-to-9-pin cable in com

with the MachineControl Pro Tools. This should only beto the DigiSerial Port when tUSD present in the system.

s The DigiSerial Port should not connecting MIDI Interfaces or anydevice. Attempting to do so will afect Pro Tools performance.

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

SUPER CLOCK (256X)

C

IN

OUT

Toolsio Interface

les)

USD

CPUinterface or rial port equire-

ature a rt is identi-rts on your sed for: nnection.

bination option for connected

here is no

be used for other serial dversely af-

Rules for Using the DigiSerial Port for USD in Expanded Pro Tools Systems

u The active DigiSerial Port will be on the Digidesign MIX or d24 card connected to the primary Pro Tools audio interface.

u If your system is a Pro Tools MIXplus, connect your USD to the DigiSethe first Pro Tools 24 MIX cardmaster card).

u If you have a combination oPro Tools 24 MIX and Pro Tooluse the DigiSerial Port on the fiPro Tools MIX card.

u If you have more than one d2are using only d24 cards (no Mware), use the DigiSerial Port od24 card in your system.

Pro Tools III SystemsPro Tools III systems do not harial Port, so a Macintosh modemport (or serial port adaptor) mufor the USD serial connection. Serial Port Requirements on p

To connect a USD to Pro Tools II(no DigiSerial Port):

1 Make sure the power is switcboth the USD and the compute

2 Connect one end of the cableSerial port of the USD.

3 Connect the other end of thether the modem or printer porport adaptor) of your Macintos

4 Restore power to the USD, anyour computer.

5 Connect the rest of your equthe USD as described in the foltions of this chapter.

6 Install USD Setup (see Software Installa-tion on page 13).

USD SetupUSD Setup requires a serial connection Chapter 2: Insta

rial Port on (the bus

f s d24 cards, rst

4 card, and IX hard-n the first

ve a DigiSe- or printer

st be used (See USD age 2.)

I

hed off for r.

to the Mac

cable to ei-t (or serial h.

d restart

ipment to lowing sec-

from the USD to a Macintosh ocomputer. (For compatibility insee System Requirements on

To connect the USD to a Macintowithout Pro Tools:

1


2

Connect the USD

Mac Serial

modem or printer port, or seriator, on your computer.

To connect the USD to a Windowwithout Pro Tools:

1

Make sure there is a COM poand enabled (refer to your Windocumentation for informationabling COM ports, if necessary

2


3

Connect the USD

PC Serial

pavailable COM port.

s

USD Setup will not control USD

DigiSerial port.

4

Restore power to the USD, anyour computer.

5

Connect the rest of your equthe USD as described in the foltions of this chapter.

6

Install USD Setup (see Softwtion on page 13). lling the USD 9

r Windows formation, page 1.)

sh computer

hed off for r.

port to the l port adap-

s computer

rt available dows NT on en-

).

hed off for r.

ort to an

through the

d restart

ipment to lowing sec-

are Installa-

Universal Slave Driver10

Standalone ModeIn standalone mode (when USD is not con-nected to Pro Tools), no computer or serial connection is required except for USD Setup and firmware updating. The USD Setup software (included) can be used to control the USD and to updware, through a serial connectiopatible Macintosh or Windowsas explained in USD Setup on

Connecting USD to Pro ToolsThe USD must be connected to the clock master.

To connect the USD to a compatDigidesign audio interface:

1 Connect the Super Clock Outto the Super Clock In (or Slave Cyour master Digidesign audio i

2 If using more than one interface, connect the Slave Clock output of your primary in-terface to the Slave Clock input of the sec-ond interface, and so on for each additional Interface (but do not loop Slave Clock from the last interface back to USD).

SuperClock (Slave Clock) connection fra single Pro Tools audio interface

ANALOG OUTPUT ANALOG INPUT AES/EBU OUTPUT AES/EBU INPUT7

8

5

6

3

4

1

2

7

8

5

6

3

4

1

2

5/6

7/8

1/2

3/4

5/6

7/8

1/2

3/4



VIDEO REF WORD CLOCKVIDEO

LTC

IN

AES

IN

AES

OUT

LTC

OUT

IN

OUT

IN

OUT

Supto DigiSerial Port

ate its firm-n to a com-

computer page 9.

Pro Tools as

ible

of the USD lock In) of

nterface.

Connecting AC Powe

The USD AC connector acceptsStandard AC Power Cable. The power-selecting (100V to 240Vautomatically work with a stanlar cable to connect to AC powcles in any country.

To connect AC power to the USD

n

Plug one end of a power cablUSD AC connector, and plug thinto a wall outlet or other pow

om the USD to

Computer 1

Computer 2

8 CH Mode2 x 4 CH Mode

S/PDIFIN

S/PDIFOUT

SLAVE CLOCKIN

SLAVE CLOCKOUT

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

9-PIN OUT

9-PIN IN / ACC

IN

OUT

SUPER CLOCK (256X)

er Clock Out

Super Clock (Slave Clock) chain conthe USD to multiple 888 24 I/O Audio


8

5

6

3

4

1

2

7

8

5

6

3

4

1

2

5/6

7/8

1/2

3/4

5/6

7/8

1/2

3/4


8

5

6

3

4

1

2

7

8

5

6

3

4

1

2

5/6

7/8

1/2

3/4

5/6

7/8

1/2

3/4


8

5

6

3

4

1

2

7

8

5

6

3

4

1

2

5/6

7/8

1/2

3/4

5/6

7/8

1/2

3/4



VIDEO REF WORD CLOCKVIDEO

LTC

IN

AES

IN

AES

OUT

LTC

OUT

IN

OUT

IN

OUT

Supto DigiSerial Portr an IEC USD is auto ) and will dard modu-er recepta-

:

e into the e other end er source.

nection from Interfaces

Computer 1

Computer 2


S/PDIFIN

S/PDIFOUT

SLAVE CLOCKIN

SLAVE CLOCKOUT

Computer 1

Computer 2


S/PDIFIN

S/PDIFOUT

SLAVE CLOCKIN

SLAVE CLOCKOUT

Computer 1

Computer 2


S/PDIFIN

S/PDIFOUT

SLAVE CLOCKIN

SLAVE CLOCKOUT

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

9-PIN OUT

9-PIN IN / ACC

IN

OUT

SUPER CLOCK (256X)

er Clock Out

Connecting Machines, Decks, and Other DevicesThe following sections describe connec-tions required for different applications.

Connecting a Video So

For the USD to resolve to house

n Connect the house sync/blacnal to the USD Video Ref In po

This is a non-terminated loop-tconnection. If the Video Ref Thtor is not used, then you must tusing the supplied 75-ohm precnator resistor

For the USD to resolve directly to video signal:

n Connect the video signal to Video In port. This port is self-inside the USD chassis.

Character Generator for Window

The USD can also generate a Wwhile using the same video southe video reference. The followexample setup for a window bu

To use the USD Time Code CharaGenerator to make a window bur

1 Connect your video signal toVideo Ref In port.

2 Use another BNC cable to coUSD Video Ref Thru port to theport.

3 Connect the USD Video Outother video devices.

Connecting LTC The USD provides LTC input and output connectors.

To Input LTC to the USD:

n Connect the LTC signal from your ma-

Chapter 2: Insta

urce

sync:

k burst sig-rt.

hrough ru connec-erminate it ision termi-

an incoming

the USD terminated

Burn

indow burn rce signal as ing is one rn.

cter n:

the USD

nnect the Video In

port to

chine, synchronizer or other soUSD LTC In port.

To output LTC from the USD:

n Connect the USD LTC Out tonal device(s).

Connecting Word Clock

The USD has Word Clock input and both can be used simultan

To input Word Clock to the USD:

n Connect the Word Clock signyour DAT machine or other deUSD Word Clock In.

To supply Word Clock from the U

n Connect the USD Word Clockdevice Word Clock input.

Connecting the USD to Word Clock de

Word Clock in

Word Clock device #1

Word Clock out

MTC OUTMAC SERIAL

85-264VAC, 47-63H

SUPER CLOCK (256X)PC SERIAL


VIDEO REF 9-PIN OUT

9-PIN IN / ACC

WORD CLOCKVIDEO

LTC

IN

AES

IN

AES

OUT

LTC

OUT

IN

OUT

IN

OUT

IN

OUT

Word Cloc

Word Cloc

Word Clock device #2lling the USD 11

urce to the

your exter-

Devices

and output, eously.

al from vice to the

SD:

Out to the

vices

Z, 115 W

k out

k in


Keep in mind that Word Clock contains no positional information; if you want devices to play or record in sync, youll still need to provide them with a positional reference.

+ The USD can generate time code to provide positional reference to other devices. See Generating and Regenerating Timpage 44 for more information.

Connecting AES/EBU D

To use AES/EBU clock reference

n Connect the devices AES/EBthe USDs AES/EBU input.

To supply AES/EBU clock referenUSD:

n Connect the USD AES/ABU oAES/EBU input on a DAT machdigital device.

Connecting MIDI DeviceThe USD MTC Out port providrived from conversion (from LTand Bi-Phase) or MTC generatichronize MTC-compatible conquencers, lighting systems andvices.

The MTC output from the MTCmatches the time code addresson the USD front panel.

OMS, Pro Tools, and the USD

When a CPU is connected to the USD Mac Serial port, Pro Tools does not need any ad-ditional connections to facilitate MTC sync or communication (it is handled through the proprietary Mac Serial-to-DigiSerial

Connecting the USD to an AES/EBU de

AES in

AES out

MTC OUTMAC SERIAL

85-264VAC, 47-63H



VIDEO REF 9-PIN OUT

9-PIN IN / ACC

WORD CLOCKVIDEO

LTC

IN

AES

IN

AES

OUT

LTC

OUT

IN

OUT

IN

OUT

IN

OUTe Code on

evices

:

U output to

ce from the

utput to the ine or other

ses MTC de-C, VITC

on to syn-soles, se- other de-

Out always displayed

Port or modem/printer port coWith Pro Tools 4.1 and earlier,terface and OMS were requiredPro Tools to recognize the USDneric synchronization device.

If you need to supply MTC fromanother MTC-compatible devicthe device as described below.

To connect an MTC-compatible dreceive MTC from USD:

n Connect the USD MTC Out pappropriate MIDI input on the da standard MIDI cable.

Pro Tools and MTC

Pro Tools does not receive MTCUSD through its connection toMac Serial or PC Serial port (seeing USD to a Computer on pasignal does not include standardcode, but is instead a high-quaetary time code signal designedPro Tools. Therefore, a MIDI Inonly required with Pro Tools veearlier.

vice

Z, 115 W

Connecting the USD MTC output to a Minput

MTC OUTMAC SERIAL

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



VIDEO REF 9-PIN OUT

9-PIN IN / ACC

WORD CLOCKVIDEO

LTC

IN

AES

IN

AES

OUT

LTC

OUT

IN

OUT

IN

OUT

IN

OUT

MTC out To MIDI Interface input

Digidesign Universal Slave Driver

nnection). a MIDI In- for as a ge-

the USD to e, connect

evice to

ort to the evice using

from the the USD Connect-

ge 7). The MIDI time

lity, propri- for terface is rsion 4.1 or

IDI Interface

MIDI/MTC outputs

MIDI Interface

Additional MIDI Requirements

Macintosh-based systems using Pro Tools version 4.1 or earlier will also need to de-fine an OMS device for the USD so that it can provide MTC to other OMS-compatible devices. See Configuring OMS on page 15 for further instructions

Software InstallatioThe following sections providestallation instructions for differPro Tools systems and standalotion.

+ The location and availability of ters is explained in Control Optiopage 27.

Pro Tools MIX/MIXplusPro Tools 24 Systemsn Check to make sure you havestalled the most recent USD opyour system, from your Pro TooCD-ROM or the Digidesign We

Optionally, USD Setup can be iprovide access to the completeparameters, and provide remotUSD independent of Pro Tools.

Pro Tools III Systemsn Check to make sure you havestalled the most recent Pro TooSetup software from your Pro Tstaller CD-ROM.

Optionally, USD Setup can be installed to provide access to the complete set of USD parameters, and for remote control of USD independent of Pro Tools.

USD Setup

Chapter 2: Insta

.

n software in-ent ne opera-

all parame-ns on

and

already in-tions for ls Installer

b site.

nstalled to set of USD e control of

already in-ls and USD ools In-

To install USD Setup:

1 Make sure the USD is conneccomputer as described in StanMode on page 10.

2 Insert the disk containing thesoftware, or navigate to its locadownloaded the update.

3 Launch the installer and follscreen instructions.

StandaloneNo software is required for stanmode except to update the USDor to use USD Setup software. SUSD Setup on page 13 for motion.

Firmware updates are made avaDigidesign to add capabilities toThese updates can be downloadWeb site or obtained from yourdealer.

Getting StartedThis section includes software tion instructions applicable to Pro Tools/USD systems.

lling the USD

13

ted to your dalone

latest USD tion if you

ow the on-

dalone firmware

ee re informa-

ilable by your USD.

ed from our Digidesign

configura-


14

Software Configuration for Pro Tools and USDPro Tools provides USD initialization, con-figuration and firmware update controls.

To configure USD for Pro Tools MIX, MIXplus and Pro Tools 24 systems:

1 Start up your system beginnihard drives, then the USD, theMIDI/other studio equipment aCPU.

2 Launch Pro Tools.

3 Choose Setups > Peripherals,Synchronization.

4 In the Synchronization Deviselect Universal Slave Driver.

5 Select DigiSerial Port for the zation) Port.

Once USD is selected as the Syntion device, the USD Enable conbottom of the window become

Software Configuration for USD Setup

To configure USD Setup:

1 Make sure the USD is connected to your computer according to the instructions in

Pro Tools Peripherals dialog, configureon DIgiSerial Portng with n nd then the

and click

ce pop-up,

(Synchroni-

chroniza-trols at the

active.

Connecting USD to a Computpage 7.

2 Launch USD Setup.

3 Choose Preferences > USD Seences.

4 If not already selected, choospriate serial port for your USD-tnection.

5 Close the Preferences window

Updating USD FirmwThe USD contains a flash EEPRlows you to update the firmwaunit at any time. As Digidesignto create improvements for USupdate your unit without havinback to the factory or replace a

Pro Tools and USD Setup can dup-to-date firmware to your US

s To acquire the latest firmware, tact Digidesign Customer ServiceDigidesign Web site.

Displaying the Current Firmware

To display the current USD firmwnumber from Pro Tools:

n See the display in the USD Seof the Peripherals > Synchronizdow.

d for the USD er on

tup Prefer-

e the appro-o-CPU con-

.

areOM that al-re in your continues D, you can g to send it ny chips.

ownload D.

please con-, or visit the

Version

are version

tup section ation win-

To display the current USD firmware version using the front panel:

n Current firmware version is shown dur-ing power up in the time code LED display.

To display the current USD firmware version in USD Setup:

n The current firmware versionthe USD Setup > Preferences wi

Updating Firmware

To update USD firmware from Pr

1 Choose Setups > Peripherals Synchronization.

2 Make sure you have already the Synchronization Device antions for USD.

3 Click Update USD Firmware.tion is not available, see Softwuration for Pro Tools and USDpage 14.)

4 Follow the instructions on-sccomplete the update.

To update USD firmware using USD Setup:

1 Make sure the USD is connected to the computer as explained in USD Setup on page 9.

2 Choose Preferences > USD Preferences.

3 Click Update USD Firmware.

Pro Tools Peripherals window Chapter 2: Insta

is shown in ndow.

o Tools:

and click

configured d Port op-

(If this op-are Config- on

reen to

4 Follow the instructions on-sccomplete the update.

Configuring OMS

(Macintosh Only)

If you are not using the USD Mato connect USD to a DigiSerial Pserial port, then you will need tOMS device for Pro Tools so thacan receive MTC from the USDplies only to Pro Tools 4.1 and

An OMS device is not required to output MTC.

s OMS should not be configuredspecific purposes whenever the Urial port is connected to a DigiSerMacintosh serial port, Doing so wcate (and adversely affect) timingbetween the USD and your compuprovided through the Mac Serial p

This section assumes you haveworking knowledge of OMS or and their operating conventionconnecting MIDI interfaces, crements, configuring drivers, andand connecting MIDI devices. to review this information, refeOMS or FreeMIDI documentatilling the USD 15

reen to

c Serial port ort or CPU o define an t Pro Tools . This ap-earlier.

for the USD

for any USD-SD Mac Se-ial Port or ould dupli- information ter already ort.

a basic FreeMIDI s, including ating docu- defining

If you need r to your on.


OMS settings for the USD:

1 Create a new device for the USD.

2 Enable both Receives and Sends MIDI Time Code.

3 Deselect Receives/Sends MIDI Beat Clock, and Receive/Sends MIDI Machine Control.

4 Deselect all Receive ChannelUSD and click OK to close the Nwindow.

5 In the main OMS Setup windothe USD device to the appropriterface.

6 Since the USD does not haveput port, OMS Setup does not rsoftware connection coming frMIDI interface and going to thClick the arrowhead of the linewards the USD icon to deactivanection.

7 If necessary, select the approport for USD.

TroubleshootingThis section describes common synchroni-zation problems and some possible solu-tions.

OMS definition for the USDs for the ew Device

w, connect ate MIDI in-

a MIDI in-equire a om the e USD icon. directed to-te this con-

priate MIDI

Status LEDs

The status LEDs (LOCKED and Son the USD Front Panel may hlate potential problems. See 1LEDs on page 19 for details abodicators and their meaning.

Use the Current TC field in Pro ToSetup Window as a Reference

The Current TC field in the SesWindow indicates whether or nreceiving positional reference. appears to be inactive when inpcode to the USD, check your hvice settings, serial connectioncomputer, and your software se

Current Time Code displayPEED CAL) elp you iso-1. Status ut these in-

ols Session

sion Setup ot USD is

If this field utting time

ardware de- to your ttings.

Current TC

chapter 3

USD Hardware a

USD Front Panel

Controls and DisplaysAll USD local controls are on itpanel; the rear panel is reservedtors only. This section identifiepanel switch and display.

For information on rear panel and setup, see Chapter 2: Install

1. AC Mains Power Switch

Down ( | ), USD power is on; Up is off.

ence, as selected with the Clock Reference

Figure 1. USD Front Panel

CLOCK REFERENCE

VIDEOLTCDIGITALPILOT

UNIVERSAL SLAVE DRIVER

BI-PHASE/TACHINTERNAL/VSO

1 2 3 4Chapter 3: USD Hardware and Software Overview 17

Switch. ( O ), power INTERNAL/VSO

3. Clock Reference LEDs

Green LEDs display the active clock refer-s front for connec-s each front

connectors ing the USD.

Selects the USD clock reference, with green LEDs.

Clock References

VIDEOLTCDIGITALPILOTBI PHASE/TACHnd Software Overview

2. Clock Reference Switch

FRAME RATE

3029.972524

LOCKSPEEDREMO

44.1 kHz48 kHzPULL UPPULL DOWN

DF

POSITIONAL REFERENCE

LTCVITCBI-PHASE

GENERATE

SET DOWN UP RUN/STOPCLEAR

5 6 7 8 9 10 11ED CAL

TE MODE


4. Sample Rate LEDs

Green LEDs show the current USD sample rate.

The table below shows how the four Sam-ple Rate LEDs indicate the current USD sample rate.

PAL format and PULL UP/DOWN

The USD Pull Up and Pull Doware not designed to perform cobetween 24 fps and 25 fps.

5. Set, Down, Up, Run/StopGenerator/Parameter Contr

These four momentary switcherect access to many USD functiing time code generator settingPAL/NTSC selection, sample rat

The LED display shows the curor currently selected parameter

6. LED Time Code Display

This 7-segment, multifunction LED is the USD time code and parameter display.

Time Code The current positional refer-ence (internal or external), is displayed in hours:minutes:seconds:frames. Decimal

USD LED Displays and Sample Rates

USD LEDs ON Sample Ra

44.1 kHz 44.100 kH

48 kHz 48 kHz

44.1 kHz andPULL UP

44.144kH

44.1 kHz andPULL DOWN

44.056kH

48 kHz andPULL UP

48.048 kH

48 kHz andPULL DOWN

47.952 kHn features nversions

+Clear ols

s provide di-ons, includ-s, e and more.

rent mode, or setting.

points indicate additional timemation: Odd/even field distinction is

using a decimal point to the frames display. A lit decimal pright of frames indicates an ebered field; no decimal pointodd-numbered.

When the USD is in Auto SwLTC/VITC mode, the decimathe right of minutes illumi

Parameters and Values When cthe USD with the Set, Run/Stopparameter controls, the LED disparameter names, values, and o

+ For a table identifying each LEDtion and function, see Parametepage 55.

7. Positional Reference Sw

Selects the USD positional referChoices include:

LTCVITCAuto Switch LTC/VITCBI PHASEGENERATE

te

z

z

z

Z

z code infor-

indicated right of the oint to the ven-num- indicates

itch l point to nates.

onfiguring and other play shows ther data.

abbrevia-rs on

itch

ence.

8. Positional Reference LEDs

Yellow LEDs display the active positional reference.

In Auto Switch LTC/VITC mode, both the LTC and VITC LEDs light while the USD determines which source it will use. Either the LTC or the VITC LED will rindicate the chosen positional

9. Frame Rate Switch

Selects the time code frame rate(drop-frame or non drop-framechoice is displayed by the Frame

10. Frame Rate LEDs

Display the current USD frame

Frame Rates 30, 29.97, 25, or 2dicated by four green LEDs

Drop/Non-drop Format is indicasingle orange LED labelled DF (indicates drop frame, unlit inddrop frame).

11. Status LEDs

Show the current state of the Ution to clock references. Indicat

Locked This red LED lights soliUSD is locked to the selected clence. LOCKED flashes if the selreference source is missing or oable frequency range.

Speed Cal (Speed Calibration) TLED indicates when all output ca frequency that corresponds wsen sample rate. Speed Cal flash

ever there is a mismatch between the cho-sen sample rate and the actual output sample rate.

For example, if the Clock Reference is set to LTC, and being fed by LTC from an analog tape that is running somewhat off-speed, Chapter 3: USD Hardware and Softw

emain lit to reference.

and format ). The active Rate LEDs.

rate.

4 fps are in-

ted by a a lit DF LED icated non-

SD in rela-ors include:

d when the ock refer-ected clock ut of lock-

his yellow locks are at ith the cho-es when-

this indicator will flash quicklyor slowly (if too slow). The Spetion LED will be lit steadily onlput clock (remember, USD is geoutput clock from incoming LT0.025% (250 parts per millionsen sample rate. If the speed is g+0.025%, the indicator will flasthe speed is less than 0.025%,tor will flash slowly.

Relatively new professional ATRable to play back with a speed dless than 0.025%. Some ATRs,calibrated properly, may not runenough to allow the Speed Calremain lit without flashing.

The Speed Calibration LED comtual output sample rate to desirrate. This LED does not reflect tmotion of the chosen PositionaHowever, it would bear a relatithe Positional Reference if bothReference and Clock ReferenceLTC.

Remote Mode This green LED lithe USD is set to Remote-Only /Lockout Mode. For more informthe section About Remote-Onlpage 29.are Overview 19

(if too fast) ed Calibra-y if the out-nerating an C) is within ) of the cho-reater than

h quickly; if the indica-

s should be eviation of

even when accurately

ibration to

pares ac-ed sample he speed of l Reference. onship to Positional

were set to

ghts when Front Panel

ation see y Mode on


USD Rear Panel

1. Bi-Phase/Tach/GPI/Pilot

With a properly wired cable, thaccessory port inputs for Bi-Phaand Pilot signals. This connectused for GPI input, output (inclStart), and thru signals.

Connector: Female DB-25

+ Refer to Appendix C: Wiring DAssignments for wiring informatiospecifications for this port.

2. PC Serial port

A bidirectional (in/out) port is duse exclusively with a PC-compcomputer.

Connector: Female DB-25

3. Video Reference In

Receives a signal from an NTSCsource, such as a black burst (hgenerator or a standard video sclock reference and window burThis jack is configured as an unloop-through. Therefore, you m

Figure 2. USD Rear Panel

MTC OUTMAC SERIAL

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

PC SERIAL

BI-PHASE / TACH / GPI / PILOT

VIDEO REF 9-PIN OUT

9-PIN IN / ACC

WORD CLOCKVIDEO

LTC

IN

AES

IN

AES

OUT

LTC

OUT

IN

OUT

IN

OUT

IN

OUT

SUPER CLOCK (256X)

INTERNALLY TERMINATED

1 2 3 4 5 6 7ouse sync) ignal, for n purposes. -terminated

ust either:

sync chain, a BNC Terminating Plug (supplied) must be attached to this connector. port

is serves as se, Tach,

or is also uding Fader

iagrams Pin n and other

esigned for atible host

/PAL video

Connect a 75-ohm terminatowith the USD) to the unusedthrough connector (Video ReThru on the back panel) or

Ensure that another, terminadevice is fed from the loop-thnector.

Connector: Female BNC

4. Video Reference Thru

A parallel, unbuffered connectifor any video source connectedVideo Reference In port; allowsor other video reference to be pother device. Continues to outever signal is present at the VideIn port, regardless of whether oUSD is powered up.


s If the USD is the last device in

8 9 10 11 12 13 14 15 16 17 1r (included loop-ference

ted, video rough con-

on output to the black burst assed to an-put what-o Reference r not the

the video

8 19

5. Mac Serial Port

A bidirectional (in/out) port designed for use exclusively with the DigiSerial Port found on all Pro Tools MIX and d24 cards, or to a modem/printer port on a compati-ble Macintosh host computer.

Connector: Female mini DIN-8 (8

6. Video In

Receives a signal from an NTSCsource for clock or VITC positioence input, or for generating a burn. This connector is internanated at 75 ohms.


7. Video Out

If the Positional Reference is seate and the Clock Reference is sthe two video inputs, this will copy of the video signal appearVideo Reference input. Under acombinations of Positional anderence settings, this will outputhe video signal appearing at thinput.

In either case, this output mighally carry VITC and/or Windowmation if those features are ena


8. MTC Out

Outputs MIDI Time Code (MTCother MIDI data appears at thisMTC output can be regeneratedUSD is locked to any supportedreference and clock reference, o

generated in Generate mode, in which case MTC output follows generator run/stop. Intended to supply MTC from the USD to external sequencers or other MIDI devices.

Connector: Female standard, DIN 5-pinChapter 3: USD Hardware and Softw

-pin)

/PAL video nal refer-window lly termi-

t to Gener-et to one of output a ing at the ll other Clock Ref-

t a copy of e Video In

t addition- Burn infor-bled.

), only. No output. while the positional r internally

9. LTC In

Receives a Linear Time Code (Lbalanced or unbalanced analogand positional reference. This pused to receive LTC from an audan external deck or the addressVTR.

Connector: Female XLR-style 3-p

(Pin 2 + or hot, Pin 3 or

10. LTC Out

Outputs linear time code, in baunbalanced analog audio form

Connector: Male XLR-style 3-pin


When the LTC Out port is conunbalanced mode, Pin 3 must grounded. See Appendix C: WiriPin Assignments for wiring deta

11. AES/EBU In

Receives an AES/EBU digital aufor clock reference purposes onutilizes only the signal's clock innot the audio information. If dinformation is present at this inbe ignored and not passed throAES/EBU digital output connec

Connector: Female XLR-style 3-p

(Pin 2 + or hot, Pin 3 or are Overview 21

TC) source, , for clock ort is often io track on

track of a

in

cold)

lanced or at.

cold)

nected in be ng Diagrams ils.

dio signal, ly. The USD formation,

igital audio put, it will ugh to the tor.

in

cold)


12. AES/EBU Out

Outputs a silent (all bits OFF) AES/EBU au-dio signal whose sample rate exactly matches the USD Word Clock BNC output.

Connector: Male XLR-style 3-pin


13. Word Clock In

Receives (1x sample rate) Wordclock reference purposes only. with external digital consoles atape machines.


14. Word Clock Out

Outputs 1x sample rate Word Cmation, for clock reference purCan be generated internally.


15. 9-pin In/Acc

This port is not active.

16. 9-pin Out (9-pin Pass-thr

This port is not active.

17. Super Clock In

Receives Super Clock (256x samformation. Used for 256x clockpurposes only (also known as S


18. Super Clock Out

Outputs Super Clock (256x sample rate) in-formation for Digidesign Audio Interfaces, for clock reference purposes only. Can be generated internally, or can be converted from an external clock reference. Also cold)

Clock, for Often used nd digital

lock infor-poses only.

ough)

ple rate) in- reference lave Clock).

known as Slave Clock.


19. AC Power In

Receives AC mains power, 85 t47 to 63 Hz (auto switching).

Connector: IEC Standard AC Pow

(3-conductor)

USD Setup SoftwareThe following is an overview oUSD Setup application for MacWindows. System and installatments for USD Setup can be fouware Installation on page 13.

Using Help

To activate Help:

n From the Help menu chooseHelp command, or click on themark button in the upper-rightthe USD Setup window.

To deactivate Help:

n From the Help menu, select tHelp command, or click on themark button in the upper-rightthe USD Setup window.o 264 volts,

er Cable

f the intosh and ion require-nd in Soft-

the Show question corner of

he Hide question corner of

Overview of USD Setup ControlsThe following section identifies each con-trol of USD Setup. Details on configuring parameters can be found in Chapter 4: Using the USD.

1. Time Code Window

The time code display mirrors tTime Code Display on the USD displaying (in hours:minutes:seonds:frames) the time code addcurrent positional reference.

Display of Odd/Even Fields Whis reading odd-numbered fieldstor changes from a normal coloriod (.); when its reading evenfields, the punctuation returns(:). Odd/even status is only avareading VITC, and only when Vwithin a speed range from zero50% of playback speed.

2. Clock Reference

Selects the USD clock reference, which in-clude:

Video (Video Reference Input)Video (Video Input)Linear Time Code (LTC),

USD Setup Chapter 3: USD Hardware and Softw

he LED front panel, c-ress of the

en the USD , the separa-n (:) to a pe--numbered to a colon ilable while ITC is

to about

Digital (AES/EBU)Digital (Super Clock)Digital (Word Clock)Pilot Tone Bi-Phase/TachInternal/VSO

3. Sample Rate

Selects the USD sample rate (orPro Tools session sample rate, ible).

4. Positional Reference

Selects the USD positional refereinclude:

Linear Time Code (LTC)Vertical Interval Time Code (Auto Switch LTC/VITCBi-Phase/TachGenerate

5. Frame Rate

Selects the frames-per-second (external (or internally generatecode:

30 fps30 fps drop-frame29.97 fps29.97 fps drop-frame25 fps24 fpsare Overview 23

the f applica-

nce, which

VITC)

fps) rate of d) time


6. Status

Shows the current state of USD Setup soft-ware in relation to the USD and external devices.

Resolver Locked Lights when the USD is locked to the chosen external clock refer-ence, or to its Internal clock ref

Speed Calibration Lights when system clock and all output clofrequency that corresponds witsen sample rate. Capable of indmatch of pull-up, pull-down anrate.

+ For details about Speed Calibrteristics, see 11. Status LEDs

Generator Running Lights whenregenerating time code at its viand MTC outputs in sync withing positional reference sourcewhenever the USD is generatininternally.

Connected to USD Lights whenis the front-most window and icating with the USD.

Waiting for USD Lights when Uthe frontmost window and is ucommunicate with the USD.

Port Relinquished Lights when is not the frontmost window orallocate a serial port with whichnicate with the USD.

7. LTC Output Level

Adjusts the analog audio level LTC output, from 24 dBu to +

8. Freewheel Duration

Sets the period of time for which the USD will continue to supply positional refer-ence data after an external source is inter-rupted or stopped. (Also referred to as Time Code Freewheel in Pro Tools.)erence.

the USD cks are at a h the cho-icating mis-d frame

ation charac-on page 19.

the USD is deo, LTC, the incom-. Also lit g time code

USD Setup s communi-

SD Setup is nable to

USD Setup is unable to to commu-

of the USD 9 dBu.

9. Video Format

Indicates the format (NTSC or both the incoming and outgoinnals.

NTSC is used in North and SouJapan, and certain other parts o

PAL is used in most of Europe, Arica. Users of SECAM video (for sia, and certain other parts of tshould select PAL.

10. VITC Read Lines

Determines which line pair of ivideo signal is used for the VIT

When set to Auto, the USD wilthe first valid line pair automatnatively, this value can be set tVITC line pairs.

11. VITC Generate Lines

Determines the line pair of thevideo signal onto which the USVITC. Normally, this should bedefault (and preferred) setting

12. VITC Insertion Enabled

When selected, VITC will be inthe outgoing video signalassuvideo signal is present at a USDput, and that the USD is in a valPAL) for g video sig-

th America, f the world.

sia, and Af-France, Rus-he world)

ncoming C source.

l search for ically. Alter-o specific

outgoing D inserts left at the

of 14/16.

serted into ming that a video in-id mode for

inserting VITC. The only invalid positional reference modes are VITC or Auto Switch LTC/VITC. The USD cant read VITC and generate new VITC at the same time.

13. Pitch Memory Enabled

When selected, the USD will repitch (sample rate) that corresplast known incoming time codWhen deselected, the USD will rselected sample rate. This featuthe USD to learn the time codecific source during successive lolock up times can be optimized

If Pitch Memory is disabled andlected external clock reference able, then the USD will revert tnal, selected internal sample ra

14. Idle MTC Enabled

Controls MTC Output during istopped). When enabled, MTCously output. When not enableput is muted when playback is MTC Output and Idle Mutingfor details.

15. Window Dub

Settings for the USD character tor/window dubbing features. (trols are also available from witPro Tools Peripherals dialog.)

Complete Window Dub instrucprovided in the section Generadow Burn on page 51.

16. Bi-Phase/Tach Parameters

Used for specialized applications that in-volve film or other equipment that output Bi-Phase/Tach information. These parame-ters must be set to match the Bi-Phase or tach source to achieve lock. See Positional Chapter 3: USD Hardware and Softw

main at a onds to the e speed. evert to the re enables form a spe-ckups, so .

the se-is not avail-o the nomi-te setting.

dle (play is continu-d, MTC out-idle. See on page 51

genera-These con-hin the

tions are ting a Win-

Reference and Bi-Phase/Tach ofor more information.

17. Generator/Bi-Phase Pre

Serves two functions, as determcurrent USD mode:

Generate mode Sets the time cotime directly by clicking in theHrs:Min:Sec:Frm fields and typvalue. The Tab key will cycle thfields.

or

Bi-Phase/Tach Mode Zeros the tcounter, to allow the USD to gecode in relation to the pulses oing Bi-Phase/Tach information.a time code start point (first framfor example).

18. Variable Speed Override

Used to varispeed the rate of thnal crystal-referenced clock (6cent is one-hundredth of a semis available at any positional reting, but only when the clock rInternal/VSO. are Overview 25

n page 38

set

ined by the

de start ing in a ough the

ime code nerate time f the incom- Establishes

e of a reel,

(VSO)

e USD inter-99 cents; a itone). VSO ference set-eference is

chapter 4

Using the USD

Control OptionsThe USD can be controlled in t from within Pro Tools using the front panel contro using USD Setup

Which methods you will use dthe type of Pro Tools system beany, and its serial connection bUSD and your system

Pro Tools MIX/MIXplus andPro Tools 24 Systems

DigiSerial Port-equipped systemPro Tools and the front panel tUSD. USD Setup can optionallyaccess to specific features descrthroughout this chapter.

Pro Tools III Systems

Pro Tools III and other systemsDigiSerial Port connection can Pro Tools and the front panel, USD Setup software. Chapter 4: Using the USD 27hree ways:

ls

epends on ing used, if etween the

s can use o control be used for ibed

without a use or

Standalone

Remote installations (no connecomputer) will use the USD froswitches and displays.

USD Standalone with Remote Co

For software remote control froported Macintosh or WindowsUSD Setup provides access to arameters.

For a listing of USD parametersin each method, see USD ConPro Tools, USD Setup, and Fronpage 28. ctions to a nt panel

ntrol

m a sup- computer, ll USD pa-

supported trols in t Panel on


USD Controls in Pro Tools, USD Setup, and Front Panel

USD Controls in Pro Tools, USD Setup, and the Front Panel

Available from/in:

Parameters Pro Tools Front Panel USD Setup

Firmware Update yes (Per

Clock References all (Se

Positional References all (Se

Sample Rates all (Se

Frame Rates all (Se

LTC Output level

Freewheel duration yes (Se

Video Format (NTSC/PAL)

VITC Read Lines

VITC Generate Lines

VITC Insertion Enable

Pitch Memory

Window Dub all (Peri

Bi-Phase/Tach

Gen/Bi-Phase Preset Generat

GPI

VSO yes (Se

Pull Up/Down yes (Se

Idle MTC Enabledipherals/Sync) no yes

ssion Setup) all, except Video In versus Video Ref in

all

ssion Setup) all all



no yes yes

ssion Setup) yes yes

no yes yes

no yes yes

no yes yes

no yes yes

no yes yes

pherals/Sync) on/off only yes, all

no yes yes

or, no Bi-Phase yes yes

yes no no

ssion Setup) no yes

ssion Setup) yes yes

no yes yes

About Remote-Only Mode

(USD Setup Only)

When the default Remote-Only Mode (Front Panel Lockout) is enabled in the USD Setup Preferences window, none of the USD front panel switches wational. The Remote Only LED

To exit Remote-Only mode from tpanel:

n Simultaneously press and holClock Reference, Positional RefFrame Rate front panel switche

This will disengage the USD froOnly mode. This is useful whencomputer is not easily accessibride Remote-Only Mode.

] Pro Tools USD controls always cess to most USD parameters.

Using the Front Panel Generator/Parameter SThe Generator/Parameter Contbelled SET, DOWN, UP, and RUN/STOP/CLEAR. In additionmary generator functions, thesprovide front panel access to mrameters.

Features Not Accessible from thePanel Controls

The front panel provides accessfeatures except the following (wcontrolled using Pro Tools or U Remote-Only Mode/Front Pa Firmware update

Changing Window Burn Size, Vertical Position, Horizontal Position, and Color

GPI (General Purpose Interface) func-tions

Choosing between Video In or Video Ref In connector for the Clock Reference Chapter 4: U

ill be oper- will be lit.

he front

d down the erence, and s.

m Remote- the host

le to over-

provide ac-

witchesrols are la-

to their pri-e switches ost USD pa-

USDs Front

to all USD hich can be SD Setup): nel Lockout

source Variable Speed Offset (VSO)

For a listing of available parameUSD Controls in Pro Tools, USand the Front Panel on page 2

Set

The SET switch has three primations:

When time code is displayed Pronce changes the Display from tparameter names.

When a parameter name is visibSet once will change the Displaparameter values.

When a parameter value is visiblSet once will set that parameterwill return the Display to time

Down and Up

These switches scroll through pnames and values (whichever idisplayed):

Generator/Parameter Switches

44.1 kHz48 kHzPULL UPPULL DOWN

SET DOWN UP RUN/STOPCLEARsing the USD 29

ters, refer to D Setup, 8.

ry func-

essing Set ime code to

le Pressing y to show

e Pressing value, and code.

arameter s currently

POSIT


When a parameter name is visible Pushing the Down and Up switches scrolls through the parameter names (for example, from SET GEn to VIdEo SY).

When a parameter value is visible These switches scroll through the available pa-rameter values.

When entering time code valuesthese two switches simultaneouthrough the hours:minutes:secofields.

Run/Stop/Clear

This switch has two functions,upon the current mode:

While generating time code PreRUN/STOP starts or stops the tgenerator when USD is in Genemode.

While time code is being displaysets the counter whenever timeible in the LED Time Code disp

Otherwise, the RUN/STOP+CLEserves as a Cancel button (Clea

Edit Mode

To enter Parameter/Value Edit m

n Push Set (when time code nuvisible in the LED Time Code Dipress will display the first paramSet Gen, (for the time code g

Depending upon the last state of the USD, you may see a readout other than SE7 GEn.

To scroll parameter choices:

n Press Up or Down as needed to scroll through available parameters. Holding the

The (default) first page of Generator Pcontrols Pressing sly tabs nds:frames

depending

ssing ime code rator Preset

ed Clear re- code is vis-lay.

AR switch r mode).

ode:

mbers are splay). One eter name,

enerator:)

switch scrolls through the para

To select a parameter to edit:

n When the desired parameter ipress Set. This will access that pcurrent setting.

To edit parameter values:

n With parameter values displaUp or Down to cycle through thvalues.

Examples

Example 1: Using Set, Down and LTC Gain

As an example, the following stusing the USD front panel contchange the Linear Time Code oLTC Gain is the example paramthe basic steps are similar for mters.

To select a parameter name andrespective parameter values:

1 Time code numbers should benot blinking in the LED Time Cplay. If you dont see them, preswitch until you do.

2 Press the Set switch. The LEDDisplay will switch from showicode numbers to a parameter nfirst name is Set Generator (SE7though you may see a differentpending upon the USDs last se

arameter meters.

s displayed, arameters

yed, press e available

Up to adjust

eps explain rols to utput level. eter, but ost parame-

change its

visible and ode Dis-ss the Set

Time Code ng time ame. The 6En), al- name, de-ttings.

3 Press the Down or Up switches until the LED Time Code Display shows LTC Gain (L7C 6AIn).

4 Press the Set switch again. The LED Time Code Display will now show the current parameter value for LTC Gain in dBu val-ues.

5 Press the Down or Up switchthrough the available parameteValues will scroll (in 3 dBu stepdown either Down or Up to fas

6 When the desired parameterplayed, press the Set switch aga

With just a few exceptions thesmain the same for all USD para

+ For a complete listing of all theGenerator/Parameter controls, seChapter 5: Additional Operationation.

Example 2: Standalone Sample RConfiguration

The following is an example of front panel instructions, this timhow to set the USD sample rate

To set the USD sample rate frompanel:

1 Press Set, then scroll using thDown switches to display SPL F

2 Press Set again, then use the Down switches to scroll througsample rates (shown in the LEDSee 4. Sample Rate LEDs on pmore information about USD sand displays.

3 When the required rate is displayed, press Set to confirm it as the current USD sample rate.

Sync SetupChapter 4: U

es to scroll r options. s). Hold t-scroll.

value is dis-in.

e steps re-meters.

front panel e l Informa-

ate

abbreviated e showing

.

the front

e Up and rEc.

Up and h available display). age 18 for

ample rates

This section describes how to coUSD for the specific requiremensystem or current project. Instrorganized by task, and cover Prfront panel and USD Setup condures, as supported. (A complettrol options for each method cain USD Controls in Pro Tools, and Front Panel on page 28.)

u For clock reference instructioClock References on page 32

u For Positional Reference instrPositional References on pag

u To utilize Generate/Regenerasee Generating and RegeneratCode on page 44.

u For window burn instructionerating a Window Burn on pa

Frame Rate SettingsIf using Pro Tools, the USD framfollow the session frame rate seSession Setup window.

The USD frame rate can be also front panel.

To set the USD frame rate from tpanel:

n Press the FRAME RATE switchthrough available frame rates. Aindicates drop-frame. sing the USD 31

nfigure the ts of your

uctions are o Tools, trol proce-e list of con-n be found USD Setup,

ns, see .

uctions, see e 38.

te modes ing Time

s see Gen-ge 51.

e rate will tting in the

set from the

he front

to cycle lit DF LED


Clock References When used with an external clock refer-ence, the USD functions as a resolverso that Pro Tools and other devices can be synchronized, or resolved, to a common clock source.

Selecting a Clock Sour

To choose a clock reference from

n Choose Display > Session Setuthen select a setting from the Cence pop-up menu.

To choose a clock reference usinpanel controls:

n Push and release the Clock Rswitch to cycle the USD througable clock references.

To choose a clock reference usinSetup:

n Select a setting from the Clocpop-up menu.

Clock Reference OptionsThe following sections provide specialized instructions for each clock reference choice.

Video Clock Options

Configuring the USD Clock Reference ce

Pro Tools:

p Window, lock Refer-

g the front

eference h its avail-

g USD

k Reference

Depending upon how the USDured, this clock reference may bRef In or the Video In connectordetails, see Limitation When UPanel Clock Reference Switch

For House Sync/Black Burst UseVideo Ref Input.

For Incoming Video Use the Vidnector.

Serial Time Code with MachineC

MachineControl-equipped Protems can utilize serial time coding MachineControl with seriaas the positional reference, thebe locked to Video Ref. In this sUSD is set to Generate mode tothat positional information is aPro Tools directly over the 9-pinthrough the USD. Consult the Mtrol Users Guide for complete secode information.

Limitation When Using Front PanReference Switch

When you choose Video usingpanel Clock Reference switch, ththe signal at the Video Ref In cochoose the signal at the Video Inas your clock reference, you muUSD Setup or Pro Tools.

from Pro Tools is config-e the Video (for more sing Front

on page 32).

the USD

eo In con-

ontrol

Tools sys-e. When us-l time code USD must cenario, the indicate cquired by cable, not achineCon-

rial time

el Clock

the front-e USD uses

nnector. To connector st use

If you have only a single video source, and since USD uses different video inputs de-pending on configuration, you may want to follow the wiring tip below to ensure that you have full functionality in all con-figurations:

To work with a single video sour

1 Connect the video signal to V

2 Run a short BNC jumper cabVideo Ref Thru connector to thconnector.

3 Connect the Video Out signavideo input of your destinatiovideo editing system.

The issue of which video connealso matters when choosing a preference. For instance, when thGenerate mode and Video is thclock reference, the time code rthe generator is always from thIn connector.

However, if you select a positioence other than Generate, thenat the Video In connector is us

+ For more video signal informatVideo and VITC Signals on pagependix A.

Digital AES/EBU, Word ClocSuper Clock

To resolve Pro Tools/USD to extAES/EBU, Word Clock or Super C

From Pro Tools

n Select the appropriate digitalence from the Clock Referencethe Pro Tools Session Setup win

Using the front panel controls

1 Press the front panel Clock Reference switch to select Digital as the clock refer-ence.

2 Press Set.

3 Press Up or Down until Digital Reference Chapter 4: U

ce:

ideo Ref In.

le from the e Video In

l to the n VTR or

ctor is used ositional e USD is in e current eference for e Video Ref

nal refer- the signal

ed.

ion, refer to 67 in Ap-

k and

ernal lock:

clock refer- pop-up in dow.

(dI6 rEF) is displayed in the LED

4 Press Set again. The LED Timplay displays the current digitawhich will be: AES/EBU (AES-E8U), or Super Clock (256 CLOC), or Word Clock (I CLOC)

5 Use the Down and Up switchthe desired digital clock.

6 When the desired option is dpress Set.

Using USD Setup

n Select the appropriate Digitalence option from the Clock Remenu.

If the chosen clock reference soavailable, or the current confignot valid, the Locked LED on tof the USD front panel will flas

Additional Digital Clock Informat

AES/EBU The USD AES In conrecognizes and uses the clock pincoming AES/EBU audio signainformation will be ignored andpassed to the USD AES Out consing the USD 33

.

e Code Dis-l reference,

es to select

isplayed,

clock refer-f pop-up

urce is un-uration is he far-right h.

ion

nector only ortion of an l. All audio will not be nector.


Word Clock (1x) Word Clock is a digital clock reference signal that runs at 1x sam-ple rate, which is the same rate as the clock signal carried within an AES/EBU or S/PDIF data stream. However, devices that support Word Clock have separate, dedicated BNC-style Word Clock connectors thaudio information of their ownriety of professional audio deviWord Clock connectors, includmixing consoles, DASH-standamultitrack tape recorders and Mular, digital multitrack recorder

When transferring digital audioPro Tools from a device that doport Super Clock (256x), make solve the USD to Word Clock.

Super Clock (256x) Super ClockClock) is Digidesigns proprietaclock that runs at 256x the samDigidesign audio interfaces arewith Super Clock inputs and oucause its 256x rate makes it lessto jitter than Word Clock (1x).

In most situations, the USD shthe master Super Clock signal toaudio interfaces. You should reUSD to Super Clock any time yoferring digital audio from one Dworkstation to another.

+ For additional digital clock signtion, see Digital Clock Signal Typpage 69.

LTC and Clock Reference

LTC can provide both positional and clock information as part of the time code signal. LTC cannot be read when the reference deck is stopped or playing back at slow speeds, or at fast wind speeds (roughly 10x at carry no . A wide va-ces have ing digital rd digital DMs (mod-s).

to esn't sup-sure to re-

(or Slave ry hi-speed ple rate. All equipped tputs be-

susceptible

ould supply Digidesign solve the u are trans-igidesign

al informa-es on

playback speed).

To resolve the USD to Linear Tim

Using Pro Tools:

n Choose Display > Session Setlect LTC from the Clock Refere

Using the front panel controls:

n Using the Clock Reference swLTC as the clock reference.

Using USD Setup:

n Select Linear Time Code (LTCUSD Setup Clock Ref pop-up m

Additional LTC Information

LTC can be recorded, or stripedlog audio tape track to provideof both positional and clock re(when routed back through thestriping). LTC can also be recorand played back from a VTR auor cue track.

If you are working with house sfacility and want to use LTC foreference (only), see PositionaOptions on page 39.

+ For further information on LTC LTC Signals on page 67. e Code:

up and se-nce menu.

itch, select

) from the enu.

, to an ana- the source ference USD after ded onto dio, address

ync in your r positional l Reference

signals, see

Pilot Tone

The USD can resolve to an external Pilot Tone signal for clock reference, for syn-chronizing to (or transferring audio from) certain types of open-reel audio tape re-corders. Pilot Tone is basically a 60 Hz (NTSC) or 50 Hz (PAL) sine wavTone is used on location film shtablish a common sync referena film or video camera with a poanalog ATR. Pilot Tone containtional information; it providesreference.

USD decides whether to use 60 as the pilot tone reference freqcording to the setting of the VidWhen set to PAL, the pilot tonis assumed to be 50 Hz. When s60 Hz is assumed.

To resolve the USD to Pilot Tone

From Pro Tools:

n In the USD Setup area of theSession Setup window, click onReference pop-up and choose P


1 Connect your Pilot Tone referto the USD Bi-Phase/Tach/GPI/

2 Using the front panel Clock switch, select Pilot.

Using USD Setup:

1 Connect your Pilot Tone referto the USDs Bi-Phase/Tach/GP

2 Select Pilot Tone under the UClock Ref pop-up menu.

If the Pilot Tone reference source is not valid for any reason (such as a poor con-nection or other signal transmission prob-lem), the Locked LED on the far-right of the USD front panel will flash on and off.

+ For additional Pilot Tone information, see Chapter 4: U

e tone. Pilot oots to es-

ce between rtable 1/4

s no posi- only clock

Hz or 50 Hz uency ac-eo Format.

e frequency et to NTSC,

:

Pro Tools the Clock ilot Tone.

ence source Pilot port.

Reference

ence source I/Pilot port.

SD Setups

Pilot Tone on page 70 in Appen

Bi-Phase/Tach and Clock Re

The USD is able to resolve to Bi-information for use as a clock rPhase/Tach can synthesize posience, but you must provide a refaddress (see Bi-Phase Position on page 44 for other requireme

To configure Bi-Phase/Tach for threference:

Using USD Setup:

1 Select Bi-Phase/Tach under UClock Ref pop-up menu.

2 Select the appropriate Pulse Pand Input Signals parameters, ain Bi-Phase/Tach Starting Frampage 42 and Bi-Phase/Tach Sigpage 43.

Typically, when you use Bi-Phathe clock reference you will alsoas the positional reference (seePhase/Tach Positional Referencpage 42.). sing the USD 35

dix A.

ference

Phase/Tach eference. Bi-tional refer-erence start Trimming nts).

e USD clock

SD Setups

er Frame s described e on nal on

se/Tach as be using it

Bi-e on



1 Using the front panel Clock Reference switch, select BI PHASE/TACH.

2 Select the appropriate Pulse Per Frame and Input Signals parameters, as described in Bi-Phase/Tach Starting Frame on page 42 and Bi-Phase/Tach Sigpage 43.

s If the Bi-Phase/Tach reference is not valid for any reason (such anection or other signal transmissithe Locked LED on the far-right offront panel will flash.

To select Bi-Phase/Tach as the reference from Pro Tools:

n In the USD Setup area of Prosion Setup window, click on therence pop-up and select Bi-Ph

Additional Bi-Phase/Tach Inform

Bi-Phase/Tach is used with magchine,16-, 35- and 70mm projebed editing systems and other ttor-driven film equipment. Bi-P(sometimes called Quadrature STach information are similar, tdo differ.

Bi-Phase A Bi-Phase signal consquare waves, which are generaby a devices transport mechanwhich are 90 out-of-phase witother. As a Bi-Phase-generatingplays it outputs a steady streamwaves that the USD can use as erence, at nearly any speed incstill/paused.

The USD uses the phase relationship be-tween the two square waves to determine the devices direction (forward or reverse). However, this is relevant only when the USD is using the Bi-Phase signal as a posi-tional reference.nal on

clock source s a poor con-on problem), the USD

positional

Tools Ses-e Clock Ref-ase.

ation

ma-ctors, flat-ypes of mo-hase ync) and

hough they

sists of two ted directly ism, and h one an- device of square

its clock ref-luding

Tach A Tach signal is a variatioPhase. With Tachs two signals,only as the direction indicator,other is used as the velocity, or tor.The USD uses this rate signsolving to Tach as a clock refer

There are several different standnumber of pulses-per-frame forTach devices. Using USD SetupFrame setting, you can set the Uate from 2 to 254 pulses per framthe PPF rate of the external devPhase/Tach encoder.

+ For additional Bi-Phase/Tach sition, see Bi-Phase/Tach on pagpendix A.

Internal Clock, Generating aRegenerating

The USD can use its own, crystenced, internal clock as a mastsource. When USD Clock RefereInternal: Word clock, Super clock, and

digital clock outputs are simudriven from the internal crysence. and

If the Positional Reference iserate, generated LTC, MTC, Vand Window Dub outputs arethe same internal crystal refen of Bi- one is used while the rate, indica-al when re-ence.

ards for the Bi-Phase or s Pulse Per SD to oper-e to match ices Bi-

gnal informa-e 70 in Ap-

nd

al-refer-er clock nce is set to

AES/EBU ltaneously tal refer-

set to Gen-ITC count, resolved to rence.

To resolve the USD to its internal clock:

From Pro Tools

n In the USD Setup area of Pro Tools Ses-sion Setup window, select Internal from the Clock Reference selector.

Using the front panel controls

n Use the front panel Clock Reswitch to select Internal.

Using USD Setup

n Select Internal/VSO from theClock Ref pop-up menu.

Variable Speed Override (VS

You can varispeed the rate of thcrystal-referenced internal cloctune the speed and subsequentPro Tools and any device receivreference from the USD.

Maximum VSO range is 699 csemitones). VSO is available at tional reference setting. VSO isable from the front panel contrbe controlled directly from ProUSD Setup.

To varispeed the rate of the USDclock:

Using Pro Tools

1 Choose Windows > Session Sexpand the Session Setup windview.

2 Click to enable VSO (an XVSO is enabled).

3 Adjust the varispeed value usscreen slider.

Using USD Setup

1 In the USD Setups Variable Speed Over-ride section, check the VSO Enabled box. An X indicates that varispeeding is en-abled.Chapter 4: U

ference

USD Setup

O)

e USDs k, to fine- pitch of ing its clock

ents (6 any posi- not avail-ols, but can Tools and

s internal

etup, and ow to full

indicates

ing the on-

2 Use the sliders to adjust the vvalues in semitone or cent increactual output word-clock frequshown near the sliders.

or

3 Enter the value in semitonesusing the editable fields. If the value results in an output frequple rate) that is below 35 kHz okHz, the frequency display turnthe actual output frequency is this value.

4 When finished, click the Set enable the changes.

Using Pitch Memory

Pitch Memory, when enabled, output sample rate steady evenClock Reference has disappeareout of lock range. If not enableput sample rate will return to trate (for example, exactly 44.1 the Clock Reference disappearsof lock range.

With Pitch Memory enabled, Pcontinues to play and record atsolved sample rate even if the Cence source disappears. You midisable Pitch Memory while pe

The Variable Speed Override sectionsing the USD 37

arispeed ments. The ency is

and cents varispeed ency (sam-r above 50 s red, and

limited to

button to

holds the when the d or gone d, the out-he nominal kHz) when or goes out

ro Tools the re-lock Refer-

ght want to rforming


analog recordings so as to have the record-ing made at the true nominal sample rate (for example, exactly 44.1 kHz.)

If Pitch Memory is disabled and the se-lected external clock reference is not avail-able, then the USD will revert to the nomi-nal, selected internal sample ra

To configure Pitch Memory (Holdfront panel:

1 Using the Set, Down, and Upselect Pitch Hold (PICH HLd):

2 Press the Set switch again. ThCode Display will switch to disthe two parameter values:

On (On); or Off (OFF).

3 Use the Down and Up switchbetween the parameter values.

Using USD Setup:

n Click Pitch Memory Enabled

When you have chosen your dtion, press Set. The LED Time Cwill return to showing time codThe USD will retain the setting,the unit is powered off and on changed

Positional References Positional Reference relates to the USD time code readers and generator, and to the Bi-Phase reader.

Whereas the clock connections and Clock

te setting.

) from the

switches,

e LED Time play one of

es to switch

.

esired op-ode Display e numbers. even when again, until

Reference setting serve to keeptem's components all operatingthe same rate over time, the Poerence is the facility for workinticular time address.

The Positional Reference settinplace the USD into a reading ormode. While in a reading moddresses may be obtained from Lor Bi-Phase. While in the generthe USD simultaneously generaVITC, and MTC.

Positional Reference and BPhase/Tach

Time code and positional referencways directly synonymous. In tthe terms are used interchangewhile referring specifically to BPhase/Tach, as noted in the foltions.

Selecting a Positional Reference

To select a positional reference Pro Tools:

1 Open the Session Setup wind

2 Choose a reference setting frotional Reference pop-up menu. your sys- at exactly

sitional Ref-g with a par-

g serves to generating e, time ad-TC, VITC, ate mode, tes LTC,

i-

e are not al-his guide ably except i-lowing sec-

from

ow.

m the Posi-

To select a positional reference using the front panel:

n Press the Clock Reference switch to cycle the USD through its available clock refer-ences.

To select a positional reference using USD Setup:

n Choose a reference setting frotional Reference pop-up.

s Be sure to select the appropriarates whenever you use LTC or VITsitional reference.

Positional Reference OThe following sections provideinformation and configurationtions for each available Positionence format.

Linear Time Code (LTC)

LTC is often striped onto an ATRdio track. Professional VTRs typan address or cue track, intendeyou are working with a standartape, youll almost certainly bewith LTC; if youre working witape, you may be able to work LTC or VITC, or both.

LTC can also be generated as antion of Absolute code. This is hcode DAT machines, DA-88, anital VTRs work. In any case, LTered to USD as a series of audiogardless of how it is stored or g

LTC can function simultaneoustional reference and a clock ref

To use LTC as the USDs positional reference:

From Pro Tools:

n In the USD Setup area of the Session Setup window, choose LTC from the Posi-tional Ref pop.Chapter 4: U

m the Posi-

te frame C as your po-

ptions additional instruc-al Refer-

or VTR au-ically have

d for LTC. If d audio working th a video-with either

interpola-ow time d many dig-C is deliv- pulses, re-enerated.

ly as a posi-erence.


n Using the front panel Positioence switch, select LTC.

Using USD Setup:

n Select Linear Time Code (LTCUSD Setups Positional Ref pop

Ensure that youve selected the clock reference, sample rate, fraand freewheel duration. Also mLTC signal is routed properly toLTC In connector.

Freewheel Duration

Freewheel duration (time code configures USD for a maximumframes it should continue genetime code drops out or is otherrupted. Freewheel settings are iwhen USD is in Internal/Gener

Example of Time Code Freewhee

In a 30 fps Pro Tools session, ifDuration/Time Code Freewheeframes, the USD will continue until either the incoming time is restored, or until 28 frames ewhichever occurs first. sing the USD 39

USD Guide Protools 2

Documents

Transcript of USD Guide Protools 2