TC Electronic DBMAX - V 2 Manual de usuario

DBMAX - V 2

DIGITAL BROADCAST MAXIMIZER

English

USERS MANUAL

TABLE OF CONTENTS

INTRODUCTION

Table of contents . . . . . . . . . . . . . . . . . . 3

Quick Start Guide . . . . . . . . . . . . . . . . . 4

Introduction . . . . . . . . . . . . . . . . . . . . . . 5

Front Panel . . . . . . . . . . . . . . . . . . . . . . 6

Rear Panel . . . . . . . . . . . . . . . . . . . . . . 8

Signal flow diagram . . . . . . . . . . . . . . . . 9

DBMAX setup . . . . . . . . . . . . . . . . . . . 10

BASIC OPERATION

Reference Levels. . . . . . . . . . . . . . . . . 12

Reference Levels Illustration . . . . . . . . 14

Recall . . . . . . . . . . . . . . . . . . . . . . . . . 15

Store - Delete and Preset Names. . . . . 16

MAIN PAGE

Input . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Inserts

AGC. . . . . . . . . . . . . . . . . . . . . . . . 22

Parametric EQ . . . . . . . . . . . . . . . . 22

90 deg. mono . . . . . . . . . . . . . . . . . 22

Dynamic Equalizer . . . . . . . . . . . . . 24

Stereo Enhance . . . . . . . . . . . . . . . 24

Normalizer . . . . . . . . . . . . . . . . . . . 26

MS Decoding . . . . . . . . . . . . . . . . . 26

MS Encoding . . . . . . . . . . . . . . . . . 26

Expander . . . . . . . . . . . . . . . . . . . . . . 28

Compressor . . . . . . . . . . . . . . . . . . . . 30

Limiter . . . . . . . . . . . . . . . . . . . . . . . . 34

Inserts - Post Dynamic

Transmission Limiter. . . . . . . . . . . . 36

Production Limiter . . . . . . . . . . . . . 36

Output

Dither . . . . . . . . . . . . . . . . . . . . . . . 38

Fade . . . . . . . . . . . . . . . . . . . . . . . 38

Tools

Flow. . . . . . . . . . . . . . . . . . . . . . . . 40

Surround Meter . . . . . . . . . . . . . . . 40

Peak-Hold Meter . . . . . . . . . . . . . . 41

Phase Meter. . . . . . . . . . . . . . . . . . 41

Digital I/O . . . . . . . . . . . . . . . . . . . . 42

Calibration Tone . . . . . . . . . . . . . . . 42

Utility . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Reset page . . . . . . . . . . . . . . . . . . . . . 46

The WIZARD . . . . . . . . . . . . . . . . . . . . 47

APPENDIX

Trouble Shooting . . . . . . . . . . . . . . . . . 48

Self test . . . . . . . . . . . . . . . . . . . . . . . . 49

Technical specifications . . . . . . . . . . . 50

Tutorial . . . . . . . . . . . . . . . . . . . . . . . . 51

Glossary . . . . . . . . . . . . . . . . . . . . . . . 53

Note . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Soldering instructions. . . . . . . . . . . . . . 55

Preset list . . . . . . . . . . . . . . . . . . . . . . 57

Optional Master Fader . . . . . . . . . . . . . 59

TC Electronic, Sindalsvej 34, DK-8240 Risskov - [email protected] Rev 2 - SW - V 2.02

1 Connect analog and/or digital I/O and power to the unit.

The DBMAX will adapt to the power being used in your

area without you ha ing to select a oltage.

2 Turn on the POWER switch at the rear, and press the

POWER key on the front.

3 On LCD IN page 1, select analog, S/PDIF or AES/EBU

Input.

4 Press the REF. LEVELS key and set your I/O

le el conditions:

4.1 If you use analog Inputs or Outputs, adjust the analog le el

required for digital full scale by selecting a proper alue for

the In Le el parameter. When a correct In Le el is selected,

the red LEDs on the INPUT meter should ne er light up,

and indication should be in the -18 to -6dB range.

4.2 Your normal operating le el, typically the le el at which you

would want a calibration tone, may be set as Reference

Le el. In a broadcast en ironment, the Reference Le el

would normally be set 18-20dB below your In Le el. If you

only want to relate to digital full scale, turn the Reference

Le el all the way up.

4.3 The Abs.Peak Output setting determines the maximum

instant peak Output le el from the DBMAX. If you work

against digital peak meters or in transmission, the setting

should be spot on. If you work in an en ironment depending

on analog PPM meters, this setting should be 3-4 dB abo e

the maximum le el allowed with the meter. If you work

against VU meters, the setting should be 12-20dB abo e the

0VU le el.

5. Press the WIZARD key and select the type of limiting/

compression you want by using the PARAMETER keys

and the ADJUST wheel.

QUICK START

6. Press the OK key. Play some program material and lea e

the Wizard working while you are playing a soft part and a

loud part of the type of signal the DBMAX will be

processing. 10 seconds of each will do.

7. Press the OK key again, and the DBMAX has loaded a

best fit parameter setting for your application and source

material.

8. If required, go to the COM block in the MAIN PAGE, and

adjust the More/Less setting to suit your taste. Turning the

control to Less makes the unit beha e as a Limiter.

Turning the control to More makes the unit beha e like a

maximizer.

9. No more o ers. Enjoy!

We recommend you read the entire manual before using the DBMAX, but if you’re anxious to get started we suggest

you take the following steps in the described sequence.

INTRODUCTION

Useful features for Production

Le el settings for a number of Radio and TV stations

5-band parametric EQ insert

Stereo Enhancer insert

90º mono insert

MS Decoding insert

MS Encoding insert

Dynamic EQ and De-esser insert

Production Final Limiter pro iding PPM attack response

Production Final Limiter pro iding adjustable Soft-Clip

Dedicated presets for Film and Post Pro Mastering

Dedicated presets for Production Recording

Dedicated presets for CD Mastering

Useful features for Continuity and Transmission

Final TX Limiter pro iding Emphasis compensated HF limiting

Final TX Limiter pro iding adjustable Soft-Clip

RS485 remote control

90º mono insert

AGC insert

Stereo Enhancer insert

5-band parametric EQ insert

Dynamic EQ and De-esser insert

Dedicated presets for Continuity Limiting

Dedicated presets for Continuity AGC (1-5 bands)

Dedicated presets for gentle Transmission processing

Dedicated presets for aggressi e Transmission processing

General features in the DBMAX version 2.02

Versatile multi-band Compressor/Limiter/Expander with switchable architecture between 1 and 5 bands

Minimum distortion algorithms utilizing 24 and 48 bit processing

New Less/More for control of multi-band compression

Processing at any Sample Rate between 32 and 48kHz

Relay bypass of analog I/O on power-down

Unlock detection of digital Input

Audio bandwidth to 24kHz, or ariable lo-pass filtered for FM transmission

24 bit resolution AD and DA con erters and built in optional Sample Rate con erter

Congratulations on the purchase of your new DBMAX.

We hope that you will have as much pleasure using it as we had making it.

The DBMAX V2.02 is the result of hard work by TC Electronics skilled de elopers, based upon the experience of some of the best

qualified transmission engineers in the business. The DBMAX V2.02 is TC Electronics second generation of broadcast compressors.

Stuffed with all the necessary tools, a strong collection of presets as well as a selection of predefined Le el setups, the DBMAX could be a

difficult unit to operate. But nicely wrapped in TCs award winning highly intuiti e design, you will soon be ready to operate it.

We in ite you to ha e your Input/Output and reference le el specifications included in later software releases. Other DBMAX owners will

then ery easily comply with your specifications when deli ering program material to your station or production house.

For suggestions please contact TC Electronic at: info@tcelectronic.com

Please keep informed on the latest updates either via our internet site at www.tcelectronic.com

or contact TC Electronic directly.

FRONT PANEL

INPUT PPM GAIN REDUCTION

METERS

High - Indicating

the max gain

reduction in the two

high freq.bands.

Mid - Indicating the

max gain reduction

in the mid freq.

bands.

Low - Indicating the

max gain reduction

in the two lower

bands.

LIMIT

LEDS

EXPANDER

ACTIVE

INDICATORS

OVERLOAD LED

Lights up if internal overload

occurs.

INPUT SAMPLE RATE

INDICATOR

48000 Hz

44100 Hz

32000 Hz

MIDI IN LED

MIDI or RS485 receive

indicator.

CARD LED

Indicates presence of a valid

memory card.

ACTIVITY LED

Indicates when a calculation is

performed.

EDITED LED

Indicates that the preset has

been edited.

PC CARD SLOT

Presets may be copied

to/from a standard

PCMCIA/PC-CARD

memory card.

ELECTRONIC POWER

SWITCH

»Easy touch«

Keep pressed for more than

2 seconds to turn device off.

OUTPUT PPM

High resolution meters.

DEFINED OVERLOAD

User defined overload LED.

CLIP LED

Indicates that Output

is clipped.

FUNCTIONS SECTION

MAIN PAGE

This key allows you to edit

the entire signal flow, from

Input to Output.

REF. LEVELS

All I/O levels are set here.

TOOLS

This key gives you access to

a lot of useful tools for opti-

mizing your material.

UTILITY

Security, Timing calculations,

Memory management and

others.

PROGRAM SECTION

RECALL

Recall presets.

STORE

Store and name presets.

WIZARD

The Wizard guides you

thru some of the hard work

of finding the correct set-

tings of essential

parameters.

BYPASS

Bypass the signal

processing.

CONTROL SECTION

Confirm operations

and switch individual blocks on/off.

HELP

Get help on selected display by

pressing the HELP key.

BLOCK

< >

Select which block to edit on the

Main page.

MENU up/down

Vertically oriented menu selector.

PARAMETER < >

Moves horizontally for selection of

parameter to be modified.

BAND < >

Select between the five bands on

the Com/Lim/Exp pages.

On the EQ page, the BAND keys select

which of the five EQ filters are displayed and

ready for modification.

ADJUST wheel

Sets parameter values and

preset numbers.

FRONT PANEL

PIN2+/PIN3- PIN2+/PIN3-

LEFTLEFT

RIGHTRIGHT

S/PDIF

BALANCED OUTPUTS

BALANCED INPUTS DIGITAL AUDIO

AES/EBU

RS485 GPI

SYNC

SERIAL NO.

TYPE: V002-B

MADE IN DENMARK

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC

SHOCK DO NOT EXPOSE THIS EQUIPMENT TO

RAIN OR MOISTURE

AVIS :

RISQUE DE CHOC ELECTRIQUE-NE PAS

THIS CLASS B DIGITAL DEVICE MEETS ALL REQUIREMENTS OF THE

CANADIAN INTERFERENCE-CAUSING EQUIPMENT REGULATIONS AND

COMPLIES WITH PART 15 OF THE FCC RULES.

OPERATION SUBJECT TO CONDITIONS STATED IN THE MANUAL.

OUVRIR.

100-240V 50-60H 20W~AC

UL1419

EN 60065

PROFESSIONAL

AUDIO

EQUIPMENT

REAR PANEL

Main

Power

Switch

Balanced

XLR

Inputs

Balanced

XLR

Outputs

Serial No. Word

Clock

Input

AES/EBU

digital

In/Out

S/PDIF

digital

In/Out

RS485

Thru

Out

EXTERNAL

CONTROL

Pedal/Fader

Input

NOTES:

To comply with international regulations, we have also added a rear panel POWER switch.

You don’t need to use the POWER switch on the rear panel. Use the front panel POWER switch instead.

Pin 2 is »hot«on all XLR’s (IEC and AES standards). For soldering instructions please refer to page 55.

If you are connecting the DBMAX to unbalanced equipment, you must tie pins 1 and 3 together in the cable

ends away from the DBMAX.

NOTE!

Pins 1 and 3 on the DIN connectors serve as RS485 connection. Therefore, if you are connecting the unit to

other equipment that use these pins, please make sure to use 3-wire standard MIDI type cable (not a five

wire MIDI-PLUS type).

If you want to use the Pedal Input, make sure it is a momentary type.

Power

Input

ANALOG

INPUTS

[balanced]

DBMAX

Trim Input

Internal 44.1kH

Internal 48kH

Ext. DI

Clock

Ext. Sync

In Level

Out Fine L/R

Trim Output

ANALOG

OUTPUTS

[balanced]

A/D

INPUT PPM OUTPUT PPM

Defined Overload

Left

Left Left

Right

Bypass

Fader

Right

Input

Selector

Digital Output

[AES]

Digital Input

[AES] AES/EBU

S/PDIF

Digital Output

[S/PDIF]

Digital Input

[S/PDIF]

EXP COMP LIM

Dither

D/A

Ins 4

Ins 1 Ins 2 Ins 3

Digital In Gain

Digital Out Gain

SRC

SIGNAL FLOW

DBMAX SETUP

The DBMAX is carefully designed to optimize or limit the o erall le el and enhance the energy in your material.

The use of the fi e band Compressor, Limiter and Expander makes the dynamics section of the DBMAX ery flexible, while

maintaining the fidelity of the original material. The dynamics section, in combination with a Normalizer, AGC, EQ, De-esser

etc. makes the DBMAX a ery powerful tool for optimizing the current signal.

Because the DBMAX can be used in different applications, we propose a few different setups.

Radio Production Transmission applications

DAB production or FM Production suite

The two applications for the DBMAX in this configuration are:

1. The DBMAX can be inserted pre master, to optimize the production.

2. The DBMAX can be inserted post master to emulate the signal processing in transmission.

Transmission

The two applications for the DBMAX in a transmission situation:

1. Digital Broadcast: DBMAX optimizing, limiting and equalizing the signal for digital Audio Broadcast.

2. FM broadcast: DBMAX optimizing, limiting and equalizing the signal in proportion to the current pre-emphasis.

TV Production Transmission applications

Surround Production Suite

The two applications for the DBMAX in this configuration are:

1. The DBMAX can be inserted pre master, to optimize the production.

Note: Adjusting the L/R balance can cause serious changes to the surround encoded signal.

2. The DBMAX can be inserted post master to emulate the signal processing in transmission.

TV continuity/Transmission

The two applications for the DBMAX in a transmission situation are:

1. Digital Sound: DBMAX optimizing, limiting and equalizing the signal for NICAM (or other systems) using the

wordclock as ext. sync.

2. FM Sound: DBMAX optimizing, limiting and equalizing the signal in proportion to the current pre-emphasis,

generating mono (0º or 90º).

DBMAX SETUP

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