DigiTech RP21D manual Delays, Tremolo & Auto Panner Parameters

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RP21D User’s Guide Section Two - Editing Functions

Tremolo

The word tremolo actually has several definitions in the music world. It basically means that a sound is being modulated in amplitude (the volume is beating or pulsing). It could be emulated by turning a volume knob up and down. But you probably have better things to do than turn a volume control up and down throughout a whole song, so let the RP21D do it for you.

Aside from speed and depth parameters, the tremolo also has an LFO waveform that determines the way a signal's volume is increased and decreased. While the Sine wave is probably the most common to the ear, the Triangle and Special 2 waveforms are progressively more intense.

When do I use Tremolo? Tremolo is truly a vintage sound for the guitar, electric piano and organ. Most pronounced on the guitar, you can hear it used on everything from sweet ballads to blues rock 'n roll.

Auto Panner

The auto panner is really just a dual version of a tremolo. It changes the amplitude of the left signal just as a tremolo does, but the amplitude of the right signal is inverse to that of the left signal. This gives the illusion that the signal is moving back and forth between the left and right speakers.

The Auto Panner's Speed typically doesn't get set as fast as the Tremolo since you usually want a sound to move smoothly back and forth in the stereo image. The RP21D auto panner is especially flexible since it can be used for either mono or stereo input sources. When used with a mono source, the signal pans back and forth as described earlier. When a stereo sound source is used, the original stereo image is maintained by moving the volume of the left signal exactly opposite of the right signal. The stereo image fades back and forth between the stereo extremes.

When do I use an auto panner? The auto panner can be a very creative tool. When running your guitar rig in a stereo set-up with the right amount of cabinet separation, the Auto-Panner creates a stereo panning effect that is right out of this world.

Auto panners can also add life to delays or choruses by moving them around instead of just sitting in one place in the mix. Simply place an auto panner module after a delay or chorus module. You don't need to set the auto panner's depth parameter too deep since you just want some gentle movement.

Tremolo & Auto Panner Parameters:

FX: Lvl

Controls the signal input level fed to the Module. Ranges from Off to 100%.

Speed

Controls the Low Frequency Oscillator (LFO) speed of the effect. Ranges from 0.06 to 16.0 Hz.

Depth

Controls the intensity of the effect. As DEPTH increases, volume changes become more dramatic. Ranges from 0 to

 

30 milliseconds.

WvFrm

Selects which waveform the LFO follows. Options for this control include sine, triangle, SP1 (Special 1), and SP2

 

(Special 2). The sine wave setting is probably the most easily recognized, but the smooth response of the triangle

 

wave or the intensity of SP1 or SP2 typically produce better results. See figure 4-2 on page 41.

Delays

A delay produces discrete, repeating echoes of the source material at a specified interval. In digital delays, the input signal is "sampled" or recorded into memory, where it is held for the amount of time you specify with the delay time setting, after which the sample is replayed at the output. The RP21D delays have a feedback meter that is used to send a portion of the delayed signal back to the input to be re-recorded along with new source material. The feedback setting determines how long the delay repeats take to decay to inaudibility.

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Contents Page Mains Plug Warning Digitech Digitech ElectronicsRP21, RP21D III Table of Contents RP21D Features IntroductionMaking Connections Apply PowerQuick Start Select ProgramGuided Tour of the RP21D Front PanelRear Panel Getting Started Making ConnectionsStereo About the RP21D Powering the RP21DProgram Mode DisplayExpression Pedal FootswitchesPrograms EffectsEdge of the Earth Preamp/Analog ModulesDigital Effects Modules Creating Programs Preamp DefaultsSelecting a Program Editing the PreampHeavy CompressorCompressor ThreshRatio AttackMediumLevel CompressorWah Pedal Toe Heavy Wah WahTube Distortion Tube DistortSaving a Distortion Default Type Dirty Tube GainLow Fuzz Solid State DistortionDistort Type FuzzTube GEQ Level PhaseBand Graphic Equalizer PunchTube GEQ Custom Noise Gate80Hz 140Hz 250Hz 450Hz Post T&D Noise Gate LoThreshTypeSilencer2 ThreshAtten AttackRelseDISTPan Mix Master Preamp SettingsNoise Gate Custom TubeOn Lvl DSPLvl Mstr DistByp Lvl DSPLvl MstrPreAmp Custom Storing a User Preamp DefaultNaming a Default NameUserDefault List RP21D User’s Guide Section Two Editing Functions Configuration Digital EffectsCenter Changing EffectsFXThru Module FX Dual ChoFXLvl DryLvl Balance Speed Depth WvFrmDlyA DlyB Balance OutA PanA OutB PanBChorus Effect TypesChoruses and Flangers Chorus Parameters Flanger Flanger ParametersPedal Phaser PhasersPhaser Parameters Pedal Phaser ParametersFeedback Rotary Speaker SimulatorTremolo and Auto-Panner Rotary Speaker Simulator ParametersAuto Panner DelaysTremolo Tremolo & Auto Panner ParametersFrequency Gain Dly a B Dly C D Out Delay ParametersFX Lvl Dry Lvl Balance Dly Time FdBck TapIt Smear Multi Effects Modules Chorus/Delay and Flange/Delay Multi-Effect Module ParametersSampler Reverse DelayTime Warp Reverbs Reverb Parameters ReverbGated Reverb TypeOver Type DispersionDiffusion Over FreqDetuners Delay CDelay D Increasing, Shelf, and Reverse ShelfDtn C D Pitch Shifters and HarmonyDtn a B Dtn E -HPitch Shifters Parameters Whammy Effect Parameters Whammy EffectsAuto Wah Graphic Equalizers Auto Wah Effect ParametersEqualizers Here are a couple of simple examplesParametric Equalizers Parametric Equalizer ParametersMaster Mix Dry Wet Master MixCabinet Emulator CabEmType Pre DigitalStore Prg toStyx And Sto Storing/Copying ProgramsNameStyx And Stones Assigning Programs Select Contrl F.SwitchFoot Controller Functions Assigning On/Off FunctionsRe-assign F.switch ? Expression Pedal AssignmentsSeries Assigning the Morph or VolumeAssigning the Wah Low Frequency Oscillators ModifiersDynamic Filters Midi Continuous ControllersViewing, Changing, or Deleting Assignments FXLvl CC # Min MaxTuner Midi Channels Output ModeCabinet Emulation OutputMonoMidi RcvChnl TransChnl Program Receive MapProgram Transmit Map Prg Rcv MapMIDI= UserSysEx Channel Midi Merge SysEx Channel and Midi MergeSysEx Dump SysExDump Bulk System User Default DumpProgram Dumps SysExDump UserPrg³PrgNumUsrDfltPreamp User Assigning a Midi CC to PedalsAssigning a Midi CC to the Expression Pedal PdlsBanks FS=Prg CCTranFactory Reset? Volume Pedal UpdateFactory Reset Bank NamesRecalibrate Pedal ? Recalibrating the Expression PedalAre you sure ? Push pdl forward,pressSection Five Appendix RP21D Factory Program ListSpecifications Input SectionRemarks Recognized

RP21D specifications

The DigiTech RP21D is a versatile multi-effects processor designed for guitarists seeking to expand their sound palette. With its comprehensive range of features and user-friendly interface, this device stands out as a reliable tool for both live performances and studio recordings.

At the core of the RP21D lies its extensive library of effects. Guitarists can choose from an impressive selection of up to 54 different effects, including distortion, overdrive, delay, chorus, reverb, and more. This variety allows musicians to create a unique sound that fits their style, whether they are seeking a classic rock tone or a more contemporary sound.

One of the standout features of the RP21D is its ability to store presets. With 40 user-defined patches and 40 factory presets, players can quickly recall their favorite sounds during a performance. This feature is particularly useful for guitarists who switch genres or styles frequently, as it allows for rapid transitions without the need for complex setups.

The device is equipped with a dual-analog distortion circuit, which provides a warm, tube-like tone that enhances the overall sound quality. Additionally, the RP21D includes a 24-bit A/D and D/A converter, ensuring high-resolution audio processing. This results in a cleaner and more dynamic sound, making it suitable for professional use.

The RP21D features a simple and intuitive interface, highlighted by a large LCD display that provides clear information about selected effects and parameters. Navigation is made easy with dedicated buttons for quickly adjusting settings and switching between effects.

Connectivity options are plentiful, including standard 1/4-inch inputs and outputs, as well as a built-in headphone jack for silent practice. The device also includes a direct output for connecting to a PA or recording system, making it an excellent choice for live situations and studio work alike.

In terms of power, the RP21D can be powered by either batteries or an AC adapter, offering flexibility for musicians on the go.

Overall, the DigiTech RP21D is an impressive multi-effects pedal that combines quality sound processing with a vast range of features. Whether you are a seasoned guitarist or a beginner, the RP21D offers everything needed to explore new sonic territories and refine your musical expression. Its robust construction and reliable performance make it a valuable addition to any guitarist’s rig.
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