Brainstorm Electronics DCD-8 Manuale utente

AUDIO RENTS, INC.

DCD-8

Word Clock

Distripalyzer

A Distributor, a Stripper and an Analyzer

Operation Manual

Software version 1.03

BRAINSTORM

ELECTRONICS, INC.

...Intelligent Solutions For The Recording Studio

AUDIO RENTS, INC.

DCD-8

Word Clock Distripalyzer

Owner’s manual

Version 1.0.3

Sept. 2006

All materials herein © Brainstorm Electronics, Inc.

Brainstorm Electronics reserves the right to change or modify the contents

of this manual at any time.

Credits

Concept: AID, Brainstorm Electronics

Software: Gerry Lester

Manual: Bernard Frings, Gerry Lester

Technical Assistance: Jeff Evans, Jim Pace

Brainstorm Electronics, Inc.

5100 Goldleaf Circle, 215 - Los Angeles, CA 90056 - USA - Tel: +1/323/845-1171

www.brainstormtime.com

AUDIO RENTS, INC.

Page 2 DCD-8 User Manual

DCD-8 User Manual Page 3

Table of contents

1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. I/O’S DESCRIPTION AND CABLE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . 4

3. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4. QUICK START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5. FRONT PANEL DISPLAY & LED’S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6. NAVIGATION KEYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

7. MENU NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

8. MENUS DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

01- Rate A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

02- Reference A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

03- Alternate Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

04- Word Clock Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

05- Audio Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

06- Audio In A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

07- Audio In B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

21- Rate B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

22- Reference B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

31- DCD-8 Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

32- Optical I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

33- AES Input Default Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

41- Input Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

42- Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

91- Menu Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

92- Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

99- DCD-8 Software version & FW Serial No . . . . . . . . . . . . . . . . . . . . . . . 13

9. NON-VOLATILE STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

10. LOCK STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

11. DEFINING THE RATE: Set, Auto & Learn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

12. ALTERNATE REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

13. AUDIO ROUTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

14. REF B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

15. FIREWIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

16. DCD-Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

17. UPDATING THE DCD-8 FIRMWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

18. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Pulled Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Multiplier Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Digital Audio Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Video Input Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

User Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

AUDIO RENTS, INC.

Page 2 DCD-8 User Manual

DCD-8 User Manual Page 3

1. Introduction

Congratulations on purchasing the DCD-8 Word Clock Distripalyzer. In the tradition of the

Brainstorm Distripalyzers, the DCD-8 is a Word Clock distributor, striper and analyzer.

Inside the DCD-8 is a very flexible generator with ultra low-jitter. With its many I/O’s the

DCD-8 is a complete word clock solution. It’s main features include:

• Word clock generator

• Word clock extractor

• Word clock distributor

• Digital Audio router

• Format converter

• Word clock analyzer

• Video Sync Generator (optional)

1.1. SYSTEM ARCHITECTURE

The DCD-8 generator has 2 domains, A & B, each capable of generating a differ-

ent rate. Any rate can be generated, up to 192KHz.

The DCD-8 can be referenced to any of the inputs: WC, AES, S/PDIF, FireWire,

Optical, video or internal crystal.

The A and the B rates can be assigned to any word clock BNC output and audio

output, as silent audio.

In addition, each domain can re-clock any audio input and route it to any audio output.

AUDIO OUTPUTS

REFERENCE SELECTOR

WC GENERATOR

“A” DOMAIN

Rate selection

WC GENERATOR

“B” DOMAIN

Rate selection

BNC OUT 1&2 BNC OUT 3&4 BNC OUT 5&6 BNC OUT 7&8

MULTIPLIER

Domain Select

AES/EBU OUT S/PDIF OUT OPT OUT 1392 OUT

Domain Select Domain Select Domain Select

WORD CLOCK OUTPUTS

AUDIO INPUT SELECTOR

AUDIO RECLOCKING

“A” Domain

AUDIO RECLOCKING

“B” Domain

Source Select Source Select Source Select

WC 1

WC 2

WC 3

AES 1

AES 2

AES 3

S/PDIF

1392

OPTICAL

VIDEO

INTERNAL

AES 1

AES 2

AES 3

S/PDIF

1392

OPTICAL

SD OUT 1 SD OUT 2 HD OUT 1 HD OUT 2

VIDEO SYNC OUTPUTS (optional)

SD VIDEO

SYNC GEN

SD VIDEO

SYNC GEN

HD VIDEO

SYNC GEN

HD VIDEO

SYNC GEN

AUDIO RENTS, INC.

Page 4 DCD-8 User Manual

DCD-8 User Manual Page 5

2. I/O’s Description and Cable Requirements

1 2 3 4 5 6 7 8 9 10

1. POWER

The DCD-8 requires 12VDC @ 25W. Acceptable

voltage range is 12VDC -10% thru 18VDC +10%.

The external power supply provided with the DCD-8

can accept 100 to 240 VAC input at 50 - 60 Hz so

it is suitable for use anywhere in the world.

 Use the standard IEC power cable supplied.

2. 1394

This IEEE 1394 I/O is used to send /receive digital

audio to /from a FireWire device.

 Use standard 6-pin FireWire 400 cables.

3. OPTICAL

Optical transmitter & receiver - this I/O can be

used with ADAT or S/PDIF optical audio signals.

See menu 32 for selecting the appropriate format.

 Use standard optical fiber cables.

4. S/PDIF

2 RCA connectors - I/O. transformer isolated

Used for coaxial S/PDIF.

Used also to link multiple DCD-8’s together (see

menu 31).

 Use standard 75Ω RCA coaxial cables.

5. AES/EBU IN

2 XLR female connectors - Transformer isolated bal-

anced inputs; accepts AES3 or AES11.

 Use standard 3-conductor shielded 110Ω XLR

cables.

6. AES/EBU OUT

2 XLR male connectors - Transformer isolated bal-

anced outputs for AES3 or AES11.

 Use standard 3-conductor shielded 110Ω XLR

cables.

7. VIDEO REF (IN & LOOP)

2 BNC connectors - Input & Loop through

Video Ref can be NTSC, PAL or HD analog refer-

ence signal

IMPORTANT NOTES:

• This input is unterminated. If the DCD-8 is the

last item in the chain, it needs to be terminated by

placing a 75Ω terminator on the loop BNC.

• If the video reference is HD analog reference

signal, we recommend NOT daisy-chaining it.

 Use a standard 75Ω video cable.

8. WORD CLOCK IN

2 BNC connectors - Transformer isolated WC inputs

Internally terminated with 75Ω.

 Use standard 75Ω coaxial BNC cables.

9. WORD CLOCK OUT

8 BNC connectors - WC outputs grouped in 4

pairs: 1&2, 3&4, 5&6, 7&8.

 Use standard 75Ω coaxial BNC cables.

10. VIDEO SYNC GEN OUT (Optional)

For info, see the Video Sync Generator’s manual.

11. WORD CLOCK INPUT 3 - FRONT PANEL

1 BNC connector - transformer isolated

This connector is identical to the other 2 WC inputs

on the rear panel.

 Use a standard 75Ω coaxial BNC cable.

12. AES/EBU INPUT 3 - FRONT PANEL

1 BNC connector - transformer isolated

This front panel BNC accepts unbalanced AES/EBU

input (AES3id).

 Use a standard 75Ω coaxial BNC cable.

AUDIO RENTS, INC.

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DCD-8 User Manual Page 5

3. Installation

3.1. UNPACKING

When unpacking the DCD-8 the following items should be in the shipping carton:

• DCD-8 unit

• Universal Power Supply (12VDC @ 25w)

• IEC power cable

• Owner’s Manual & Registration card

3.2. INSTALLING THE DCD-8

The DCD-8 is designed to be mounted in a standard 19” rack. It requires 1U in height.

Ideally, it should be located near your AD/DA and in the same rack.

Usual precautions should be respected when wiring the DCD-8: use high quality cables with

good shield to guarantee a good signal transmission. Keep your cables as short as possible.

Devices connected to the DCD-8’s WC outputs need to be terminated. If no termination is pro-

vided on the device, use a BNC-T with a 75Ω termination. If multiple devices are connected to

a single DCD-8 WC output, only the last device in the chain should be terminated. However,

to preserve the integrity of the transmission line, it is recommended that you do not daisy-

chain word clock outputs as it can significantly degrade signal quality.

4. Quick Start

The DCD-8 is very versatile and can accommodate many different situations. You should

read through this manual to familiarize yourself with its many features. The following

few simple steps are only provided to get you started right away.

Connect the power supply provided with the DCD-8 to the 4 pin DIN power connector on

the rear panel and plug the IEC cable into a proper wall outlet. This turns on your unit.

If the unit has already been used, please refer to page 13 to reset the factory settings. If not,

out of the box, the DCD-8 is set to generate a 48KHz Word Clock, referenced to its internal

crystal. This rate is fed to all 8 WC outputs, as well as all 5 audio outputs (as silent audio).

4.1. CHANGING THE RATE

To select a different rate, follow these steps:

• Press the [SET UP] key (the SET UP LED lights up)

• In Menu 01, press the [RIGHT] navigation key once to move to the Rate field

• Press the [UP] or [DOWN] keys to select the desired rate

• Press the [ENTER] key to confirm your choice

• Press the [SET UP] key again to exit SET UP (the Set Up LED goes out)

Your selection is reflected in the upper right corner of the LCD display, following FQ A.

4.2. CHANGING THE REFERENCE

To select a different reference, follow these steps:

• Press the [SET UP] key (the SET UP LED lights up)

• Press the [UP] key once to go to Menu 02

• Press the [RIGHT] navigation key once to go to the REF selection

• Press the [UP] or [DOWN] keys to select the desired reference

• Press the [ENTER] key to confirm your choice

• Press the [SET UP] key again to exit SET UP (the Set Up LED goes out)

Your selection is reflected in the upper left corner of the LCD display, following REF.

AUDIO RENTS, INC.

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DCD-8 User Manual Page 7

5. Front Panel Displays & LED’s

The DCD-8 has been designed so that most of the relevant information would always be

available at a glance on it’s front panel.

5.1. LCD DISPLAY

The 80 character LCD is broken into three separate areas:

• Left: displays the currently selected reference and it’s frequency

• Center: shows the Lock Status

• Right: displays the selected A & B frequencies.

A & B Frequencies

Selected Reference Lock Status

5.2. OUTPUT ASSIGNMENTS LED’S

To know what signal has been assigned to each output, there are 22 LED’s describ-

ing the selections made.

Word Clock Outputs: A-B

These LED’s indicate which frequency has been

assigned to each WC output pair: A or B.

For WC Outputs 7&8, 5 LED’s indicate if a multi-

plier has been applied.

Audio Outputs: A-B-Audio

• If ‘Audio’ is off, the output is silent audio at the

A or B rate; LED’s indicate which.

• If ‘Audio’ is on, the output is the audio source selected in menu 6 for A or 7 for B.

5.3. WC GEN LED’S

4 different “pull” coefficients are available. Each has a corre-

sponding LED for A and B domains:

• + 4.16%

• + 0.1%

• - 0.1%

• - 4.0%

These coefficients can be combined to create +4.27% and -4.096%.

VSO (varispeed) LED indicates that another rate (non-standard) is generated.

AUDIO RENTS, INC.

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DCD-8 User Manual Page 7

5.4. WARNING LED’S

REF ERROR: a failure of the selected reference occurred

ALT REF: the DCD-8 had to switch to the alternate reference

PHASE ERROR: one of the inputs is out of phase (see menu 41)

TERMINATION: a unit connected to one of the WC outputs is improp-

erly terminated (see menu 42)

B REFERENCE: domain B is not using the same reference as domain A

5.5. VIDEO SYNC LED’S

These LED’s are only active if the optional Video Sync Generator

card has been installed in your DCD-8.

For information on these LED’s, please refer to the manual of the

optional Video Sync Generator card.

6. Navigation Keys

6.1. SET UP KEY

To access the different menus, press the

[SET UP] key.

While in SET UP mode, the Set Up LED

is on.

To exit the SET UP mode, simply press

the [SET UP] key again.

6.2. ENTER KEY

Scrolling through the different values will not affect anything. Only after the [ENTER] key

is pressed will a change take place.

When exiting a menu without pressing the [ENTER] key, the changes are lost.

6.3. UP, DOWN, LEFT, RIGHT KEYS

These keys are directly left of the [ENTER] and [SET UP] keys. They are not labeled as such

because their function is fairly obvious.

While in Set Up mode, the [UP] and [DOWN] keys are used to change the value of the

selected field, while the [LEFT] and [RIGHT] keys are used to select the different fields.

[UP] and [DOWN] keys are also used to change menu pages.

Down

Left

Right

AUDIO RENTS, INC.

Page 8 DCD-8 User Manual

DCD-8 User Manual Page 9

7. Menu Navigation

7.1. SELECTING A MENU

When the Set Up mode is entered, the LCD display switches to the Set Up menu last

used, with the cursor on the far left position in the upper line.

To move to another menu, with the cursor on the upper left position, press the [UP] or

[DOWN] key.

7.2. CHANGING VALUES

To edit one of the fields on the current menu, press the [RIGHT] or [LEFT] key to move the

cursor to the desired field. Then, press the [UP] or [DOWN] key to change the value.

Note that no change will take effect until the [ENTER] key is pressed. When exiting a

menu without pressing the [ENTER] key, the changes are lost.

7.3. THE CURSOR

The cursor position is indicated with a ‘>’ character, implemented as inverse video,

flashing on and off. For numeric entry such as the VSO value, an additional under-

line cursor appears beneath the digit column being adjusted.

After a value is edited, the cursor changes to a solid triangle, until the [ENTER] key is

pressed.

If the cursor is moved to another field without pressing the [ENTER] key first, the solid

triangle stays in front of the edited field to indicate a change was made but not

entered yet.

7.4. STATUS VALUES

Throughout he different menus, values appear in the display enclosed in square brack-

ets. These are status values.

Status values are the values actually obtained, based on a menu selection. In some

cases, this might be a rate in Hz. In others it might be a different value if the one asked

for is unavailable. For example, in menu 5, if Audio is unavailable [Mute] will be dis-

played.

7.5. SET VS. AUTO VS. LEARN

The words “Set”, “Auto” and “Learn” are used to distinguish whether the user is establish-

ing the value (Set) or if the system is deducing the value automatically (Auto & Learn).

See chapter 11 for more information on these functions.

AUDIO RENTS, INC.

Page 8 DCD-8 User Manual

DCD-8 User Manual Page 9

8. Menus Description

Chapter 8 lists all the different menus available in the SET UP mode. Note that some of

the menu options will change based on your selections. As an example, if S/PDIF has

been selected in menu 32 as the optical connector format, ADAT no longer appears as a

reference option in menu 02, and vide-versa.

8.1. MENU 01: RATE A

In SET mode, a specific frequency can be selected; in AUTO mode, the reference’s

rate is automatically selected. AUTO mirrors the reference selection. AUTO is not

available if the reference is Internal Crystal or Video.

VSO can be activated in SET mode. VSO range is +/- 5% in .001% steps or .001

semi-tone.

Please note that VSO is not implemented in software version 1.03.

Status is the actual rate in Hz.

8.2. MENU 02: REFERENCE A

Select any of the available external sources as reference or use the internal crystal.

Choices are: Internal AES 1 ADAT

Word Clock 1 AES 2 Optical (S/PDIF)

Word Clock 2 AES 3 1394

Word Clock 3 S/PDIF Video

When selecting any of the external sources, a RATE menu appears on the bottom

line. RATE has 2 modes: - LEARN: the DCD-8 determines the incoming rate;

- SET: the user determines the incoming rate.

For more information on Set vs. Learn, go to chapter 11.

8.3. MENU 03: ALTERNATE REFERENCE A

The alternate reference is used as a backup reference in case the main reference

fails. If it happens, the DCD-8 smoothly switches to the alternate reference. For more

on Alternate Reference, see chapter 12.

Similar to menu 02, when selecting any of the external sources, a RATE menu

appears on the bottom line. The RATE can be on AUTO or SET.

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