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dbx DDP User Manual

dbx DDP
165 pages
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Operator Manual

Table of Contents

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dbx DDP Specifications

General IconGeneral
TypeDigital Dynamics Processor
Channels2
Digital Conversion24-bit
Sampling Rate48kHz
MIDIYes
Frequency Response20Hz - 20kHz
THD+N<0.005%
ProcessingDSP
InputsXLR
OutputsXLR
Dynamic Range>110 dB
Power Supply100-240V AC, 50/60 Hz
FunctionsCompression, Limiting, Gating, Expansion, De-essing

Summary

Important Safety Instructions

Electrical and Environmental Safety Warnings

Covers risks of shock, fire, moisture, and advises against opening the unit.

General Operating Precautions

Outlines essential user guidelines for safe operation, installation, and maintenance.

Additional Safety and Compliance Information

Lithium Battery and UK Plug Warnings

Provides specific warnings regarding lithium battery replacement and UK mains plug safety.

Electromagnetic Compatibility Statement

States the unit's compliance with electromagnetic compatibility standards.

Section 1: Introduction

Unpacking the DDP

Details the items included in the DDP packaging.

Quickstart Guide

Provides basic steps for initial setup and operation of the DDP.

Section 2: The DDP Tour - Hardware

Front Panel Overview

Details the hardware components and controls on the front panel of the DDP unit.

Rear Panel Connectivity

Lists the connectors and ports available on the rear panel of the DDP.

Section 2: The DDP Tour - Interface

Signal Flow Illustration

Illustrates the path of audio signals through the DDP and its components.

LCD Display Explanation

Explains the various elements and information displayed on the DDP's LCD screen.

Section 2: Software and Processing Elements

DDP Software Architecture

Explains the hierarchical structure of programs, setups, and chains within the DDP software.

Core Processing Modules Overview

Provides brief descriptions of the Gate, Compressor, Limiter, De-Esser, EQ, and Dither modules.

Section 3: Setup and Basic Operation

Analog Audio Connections

Details how to connect analog audio inputs and outputs using XLR or 1/4" TRS cables.

Digital Connections and Type IV™ Conversion

Explains digital I/O options and the TYPE IV™™ Conversion System for analog-to-digital conversion.

Section 3: Setup and Basic Operation - Controls

MIDI Connectivity and Control

Outlines the MIDI connectors and functionality for controlling the DDP.

Using the Curve Window for Parameter Adjustment

Explains the graphical curve window for adjusting dynamics parameters and EQ.

Section 3: Setup and Basic Operation - Metering

Software Navigation and Threshold Metering

Details how to navigate the software and interpret threshold meters for each processing element.

Understanding Threshold Meter Indicators

Explains the specific meaning of threshold meters for Compressor, Limiter, Gate, and De-Esser modules.

Section 3: Setup and Basic Operation - Modes

Program Mode Overview

Explains the default 'Program Mode' and how to use factory and user programs.

Viewing Setup Details in Programs

Describes how to view chain elements and setup details within a program.

Section 3: Setup and Basic Operation - Operation

Bypass Button and Setup Mode Entry

Explains how to use the Bypass button and enter Setup Mode for parameter adjustments.

Program Navigation and Setup Editing

Details how to navigate through programs and prepare for setup editing.

Section 3: Advanced Setup Configurations

External Sidechain and Digital Metering

Describes how to use external processors in the sidechain path and interpret digital meters.

Mono Chain Options

Mentions the availability of six mono chains for dual mono programs.

Section 4: Editing and Managing Programs

Entering Setup Mode and Viewing Chains

Details how to enter setup mode and view the elements within a processing chain.

Editing Linked and Dual-Mono Programs

Explains the process for editing parameters in linked and dual-mono program configurations.

Section 4: Saving and Editing Gate Parameters

Using the Store Button for Saving Changes

Explains the function of the Store button for saving changes to setups and programs.

Editing Gate Parameters

Details the parameters for the Gate section, including Threshold, Ratio, and Attack.

Section 4: Editing Gate and Compressor Parameters

Gate Hold, Release, and TCM Parameters

Details the Hold, Release, and Transient Capture Mode (TCM) parameters for the Gate.

Compressor Parameters and OverEasy®

Explains Compressor parameters, including OverEasy and VariKnee™™, and their graphical representation.

Section 4: Editing Compressor Parameters

Compressor Auto Mode and Threshold Settings

Details the Compressor's Auto Mode, Threshold, and Ratio parameters for compression control.

Compressor Gain, Attack, Hold, and Release

Explains the Gain, Attack, Hold, and Release parameters for fine-tuning compressor response.

Section 4: Editing Limiter and De-Esser Parameters

Limiter Controls and Settings

Explains the Limiter's parameters, including Threshold, Attack, and Release for signal limiting.

De-Esser Parameters and Operation

Details the De-Esser's Frequency and Amount controls for reducing sibilance.

Section 4: Editing De-Esser, Dither, and EQ Parameters

De-Esser Frequency and Amount Controls

Explains how to adjust the De-Esser's frequency and amount for effective sibilance control.

Dither and EQ Settings

Details Dither parameters (On/Off, Bits) and EQ parameters (On/Off, Monitor).

Section 4: Advanced EQ and Sidechain EQ

EQ Frequency, Q, and TSE Mode

Details EQ parameters like Frequency Center, Q, and TSE modes for tonal shaping.

Sidechain EQ Applications and Examples

Provides in-depth explanations and examples of using Sidechain EQ for ducking, de-essing, and tape saturation.

Section 4: Customizing Chains and Saving Programs

Changing Chain Types

Guides users on how to select and configure different chain types for custom setups.

Saving Programs

Provides step-by-step instructions on how to save edited programs to the DDP's memory.

Section 4: Saving Setups

Saving Programs (Continued)

Continues the process of naming and storing a new program, overwriting existing ones.

Saving Setups

Explains how to save individual setups, either overwriting existing ones or creating new ones.

Section 5: Utility Functions

Managing Setups: Replace Old and Store New

Details the utility functions for replacing existing setups or storing new ones in the library.

Section 5: Utility Functions Overview

Contrast and Sample Rate Settings

Explains how to adjust display contrast and output sample rate.

AutoLoad and Input Mode Configuration

Details the AutoLoad feature and input mode settings for digital I/O.

Section 5: Advanced Utility Functions

Output Mode and Digital Level Controls

Covers output mode settings and digital input level adjustments for the optional I/O card.

MIDI and SysEx Configuration

Explains how to configure MIDI channels, SysEx, and CC controls for remote operation.

Section 5: Final Utility Functions

A/D Calibration Procedure

Details the process for calibrating the analog-to-digital converters.

High-Pass Filter Explanation

Explains the function and operation of the built-in high-pass filter.

Section 6: Appendices - General Information

Miscellaneous Information: Reset, Startup, Lockout

Covers procedures for Hard Reset, changing default startup program, and front panel lockout.

Type IV™™ Conversion and TSE™ Emulation

Explains the Type IV™™ Conversion System and TSE™ Tape Saturation Emulation.

Section 6: Appendices - Advanced Features

Transient Capture Mode and Setup Types

Explains the Transient Capture Mode and the difference between Linked and Mono setups.

Dithering Explained

Details the dithering process and its application in digital audio.

Section 6: Appendices - Factory Setup Listing

Linked Factory Setup Configurations

Provides a list of pre-configured linked setups with their descriptions and chain types.

Section 6: Appendices - Factory Setup Listing (Continued)

Mono Factory Setup Configurations

Lists the available mono setups, their descriptions, and chain types for mono operation.

Section 6: Appendices - Factory Program Listing

Factory Program Overview

Lists the factory-designed programs (1-50) and their corresponding setup configurations.

Section 6: Appendices - MIDI and SysEx

MIDI Communication Basics

Explains MIDI channels, program changes, and the DDP's response to MIDI commands.

Continuous Controller (CC) Mappings

Provides a detailed table of CC numbers and their corresponding parameters for remote control.

Section 6: Appendices - SysEx Details

SysEx General Format and Definitions

Explains the general format, hex values, and definitions for System Exclusive data.

SysEx Setup Request Procedure

Details the procedure for requesting a specific setup via SysEx commands.

Section 6: Appendices - SysEx Procedures

SysEx Setup Loading and Dumping

Details procedures for receiving setup data and requesting/receiving bulk dumps.

SysEx Key Scan Code Emulation

Explains the procedure for emulating front panel button presses using SysEx commands.

Section 6: Appendices - SysEx Control and Examples

SysEx Responses and Reset Procedures

Covers SysEx key acceptance, program reset, and device reset procedures.

SysEx Setup Dump Example

Provides a sample SysEx dump illustrating the structure and data for a setup transfer.

Section 6: Appendices - Warranty and Service

Factory Service and Technical Support

Provides contact information and procedures for obtaining technical support and factory service.

Product Warranty Terms

Outlines the terms and conditions of the product's warranty, including limitations and validity.

Section 6: Appendices - Technical Specifications

Input and Output Specifications

Details the electrical and connector specifications for the DDP's inputs and outputs.

System Performance and Control Specifications

Lists specifications for A-D/D-A conversion, dynamic range, and controls for Compressor, Limiter, and Gate.

Section 6: Appendices - Detailed Specifications

Processing Module and General Specifications

Details specifications for TCM, De-Esser, EQ, stereo coupling, sampling rates, and indicators.

Options, Power, Environment, and Physical Specs

Lists specifications for the Digital I/O card, power supply, operating environment, and physical dimensions.

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