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DigiTech DSP-128 User Manual

DigiTech DSP-128
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DigiTech DSP-128 Specifications

General IconGeneral
Sampling Rate44.1 kHz
Bit Depth16-bit
EffectsReverb, Delay, Chorus, Flanger, Phaser, Pitch Shift, Detune, Multi-Tap Delay, Gated Reverb, Speaker Simulator, Parametric EQ, Noise Gate, Compressor, Limiter
TypeDigital Effects Processor
Input Connections1/4" Phone
Output Connections1/4" Phone
Presets128
Inputs1 x 1/4" Instrument

Summary

GETTING STARTED WITH THE DSP-128

INSTALL

Instructions for mounting the DSP 128 in a rack or as a free-standing unit.

PLUG IN A.C.

Guidance on routing the power cord away from audio lines.

SELECT INPUT AND OUTPUT LEVEL RANGES

Setting input/output switches for line or instrument level signals.

CONNECT CABLES

Details on connecting audio cables to the unit, including mono signal sources.

ADJUST INPUT

How to adjust the input level using the LED bargraph for optimal performance.

ADJUST OUTPUT

Procedure for adjusting the output level control to achieve desired output.

ADJUST MIX

Using the OUTPUT MIX control to set the dry to wet signal ratio.

MIDI CONTROL

Connecting a MIDI controller for program changes and accessing MIDI features.

FACTORY PRESETS

How to use the factory preset programs by pressing up/down buttons.

DSP-128 QUICK FACTORY PRESET PROGRAM REFERENCE

INTRODUCTION TO THE DSP 128

FRONT PANEL DESCRIPTION

Details the controls and indicators on the DSP 128's front panel for operation.

REAR PANEL DESCRIPTION

Explains the rear panel connections and ports for audio and MIDI.

PROGRAMMING THE DSP-128

PROGRAM NUMBERS

Explains how program numbers select memory locations and are controlled via MIDI.

EFFECT ALGORITHMS

Defines the signal processing effect or combination of effects used by the DSP 128.

EFFECT ALGORITHM PARAMETERS

Details how users customize sound by adjusting algorithm-specific parameters.

OPERATING PARAMETER ABBREVIATIONS AND DESCRIPTIONS

Lists abbreviations and descriptions for various effect algorithm parameters.

DSP 128 PROGRAMMING FLOW CHART

Visual guide to navigating the DSP 128's programming menus and functions.

PROGRAMMING EXAMPLE FOR THE DSP 128

Step-by-step guide demonstrating how to program a specific effect into the DSP 128.

PROGRAM COPY FUNCTION

Procedure for transferring the contents of one program location to another.

SINGLE FACTORY PRESET RESTORE FUNCTION

Method to delete a program and replace it with the factory preset for that location.

GLOBAL FACTORY PRESET RESTORE FUNCTION

Erases all programs and midi parameters, restoring the unit to factory default values.

DISPLAY MODE FUNCTION

A special mode to display the unit's capabilities, not for performance.

SELF TEST MODE

Initiates a self-test sequence to check the functionality of the DSP 128 unit.

SOFTWARE REVISION NUMBER

Displays the current software revision number of the DSP 128.

MIDI CONTROL OF THE DSP 128

INTRODUCTION TO MIDI

Overview of MIDI communication specifications for musical instruments.

THE DSP 128'S USE OF MIDI CONTROL

Explains how the DSP 128 uses MIDI for remote control of effects.

MIDI CHANNEL NUMBERS

Details MIDI channels for data transmission and reception on the DSP 128.

CHANGING THE MIDI CHANNEL

Procedure for changing the MIDI channel number, OMNI, or OFF modes.

MIDI PROGRAM CHANGES

How MIDI Program Change Numbers correspond to and change DSP 128 presets.

MIDI CONTINUOUS CONTROLLERS

How MIDI Continuous Controllers can be assigned to control effect algorithm parameters.

ASSIGNING MIDI CONTINUOUS CONTROLLERS TO EFFECT ALGORITHM PARAMETERS

Step-by-step guide for assigning MIDI controllers to specific effect parameters.

DATA STORAGE ON THE DSP-128

Saving preset values, MIDI channel, and controller assignments via MIDI system exclusive dump.

DSP 128 SPECIFICATIONS

ELECTRONIC SPECIFICATIONS

Technical specifications including inputs, outputs, resolution, and frequency response.

Appendix A: MAIN ALGORITHMS

Appendix B: FACTORY PRESET DATA

Appendix C: MIDI IMPLEMENTATION CHART

Appendix D: DEFINED CONTINUOUS CONTROLLER NUMBERS

Appendix E: DOD/DigiTech ELECTRONICS SYSTEM EXCLUSIVE FORMAT

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