Empress Effects Phaser Manuel utilisateur

Phaser

Operating Instructions

Check out www.empresseffects.com for instructional videos!

To prevent fire or shock hazard, do not expose unit to rain,

swimming pools, or any other moisture.

The unit requires a 9V-18V DC negative tip power

supply which connects on the back side of the unit. The

supply must have a current rating of 120mA or greater. The

Standard Boss PSA-120 is a popular choice and works well.

Table of Contents

Introduction ..................................................................................3

Thank You......................................................................................3

The Basics of the Phaser Effect .....................................................4

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

Operating Modes ..........................................................................5

Knob Mode................................................................................5

Tap Mode..................................................................................5

Auto Mode ................................................................................5

Controls .........................................................................................5

Knob Mode and Tap Mode Controls.........................................5

Auto Mode Controls..................................................................7

Controls Common to All Modes................................................8

Auto Mode ....................................................................................9

The Attack and Release Controls ..............................................9

Sensitivity................................................................................10

The Submodes.........................................................................11

Mix/Blend and Vibrato Configuration.........................................15

Changing the Mix/Blend Configuration ..................................15

Harmonic Enhancement Circuit ..................................................16

Engaging the Harmonic Enhancement Circuit ........................16

Universal Control Port.................................................................16

Configuring the Control Port...................................................17

Expression Pedal Configuration..........................................18

External Tap Switch Configuration .....................................18

Midi Configuration..............................................................19

External Audio Configuration .............................................19

Midi Control ................................................................................19

Control Change Messages.......................................................21

Midi Time Code.......................................................................

User Setting Templates ...............................................................23

Specifications ..............................................................................24

Reference Charts.........................................................................24

Auto Mode ..............................................................................24

Waveforms..............................................................................24

Index............................................................................................24

Introduction

The Empress Phaser gives you maximum control in a small,

manageable package. We’ve combined features that enable

you, dear musician, to realize your phasing dreams. From a

heavily effected 4-pole setting or a milder 2-pole setting, the

Empress Phaser can take you there.

You’ll recognize the cool tap features from our other pedals.

And with the Empress Phaser pedal we’ve also introduced the

universal control port. Now you can control your phaser from

a control voltage (CV), an expression pedal, an external audio

input, external tap switch, or via MIDI.

The auto modes allow you to shape the effect to your playing,

rather than having to limit your playing to the effect.

Under the hood we’ve included a couple switches which will

allow you to change the pedal’s configuration. There’s a

switch to enable a vibrato mode and a switch that adds some

pleasing harmonics to the signal if clean and pristine isn’t your

thing.

To help you get the most out of this pedal we’ve put some

brief instructional videos on our website that cover most

aspects of this pedal: www.empresseffects.com.

Thanks for purchasing the Empress Phaser!

Enjoy,

Steve Bragg

Thank You

Ian Chesal for editing this manual.

Ian Chesal, Matt Coburn, Wayne Eagles, James Lang, Jordan

Allen, Allan Gauthier and Chris Breitner for beta testing.

The Basics of the Phaser Effect

The phaser effect operates by blending the instrument's input

signal with a phase-shifted copy of itself. Doing this filters the

audio and causes cancellations at various frequencies

depending on the amount of phase shift. As the degree of

phase-shift changes, the cancellations and filtering sound

shifts up and down the frequency spectrum. This moving filter

‘whooshing’ through the signal is what our ears hear as the

phaser effect.

Quick Start

Set the knobs and switches to match the picture above. If the

blue bypass LED is not already lit, press the bypass switch to

engage the phaser. Twiddle away!

Operating Modes

The phaser has three modes: knob mode, tap mode, and auto

mode.

knob mode

The speed of the phaser is set with the speed knob and the

speed range switch. The fastest speed range will give you ring

modulator type sounds.

tap mode

The speed is set by tapping in a tempo with the tap switch.

The speed of the effect will be the tempo tapped multiplied by

the ratio set using the ratio knob. For example: if you have the

ratio knob at 1:2, the speed of the phasing effect will be twice

as fast as the tempo tapped.

auto mode

In auto mode, effect parameters change based on how you

are playing. We’ve set out an entire section in this manual just

to handle this very cool and deep mode. Check it out on page

9. You will also find a handy mode quick reference printed on

the front of the pedal.

Controls

You’ll notice many knobs serve two functions. The green text

on black background apply when the pedal is in auto mode.

The black text on green background applies when the pedal is

in knob or tap mode.

Knob Mode and Tap Mode Controls

blend – controls the amount of the original signal and the

phase-shifted signal that appears at the output. When set

completely counter-clockwise all you hear is the original, dry

signal; set completely clockwise is an equal amount of the

original, dry signal and the wet, phase shifted signal – this is

where you’ll hear the most prominent signal cancellations.

The blend knob can be configured internally to act as a

traditional mix knob. Mix mode allows you to obtain a 100%

wet signal when you turn the knob all the way counter-

clockwise. For more details see the Mix/Blend section on page

15.

speed/ratio – with the mode switch set to tap, this knob sets

the multiplication ratio for the tapped in tempo. For example,

set at 1:2, the phasing rate will sound twice as fast as the rate

tapped.

When the mode switch is set to knob, the ratio/speed knob

sets the speed of the phaser.

width – determines how far the phase shift varies from the

center position in tap and knob modes. The higher you set this

the more pronounced the phasing effect will be.

waveform – selects the phasing waveform. The available

waveforms are:

1. Sine Wave

2. Triangle Wave

3. Asymmetrical Sine Wave

4. Swung Sine Wave

Fast, then slow with the second half the sine period

taking twice as long as the first.

5. Saw Wave

6. Reverse Saw Wave

7. Square Wave

8. Super-Crazy-Random

Random steps. Try it with a fast speed setting!

gain –controls the output gain. The point where unity gain is

achieved varies and depends on the other settings you have

made on the pedal.

mode – sets the operating mode of the pedal. In tap mode the

speed of the effect is set by tapping the tap switch. In knob

mode the speed of the effect is set by the speed/ratio knob.

The auto mode is described in detail on page 9.

speed range – controls the range of available speeds that can

be swept through with the speed/ratio knob when the pedal

is in knob mode.

stages –selects the number of all-pass poles used in the wet

signal. The 2-pole setting sounds the least effected, 4-pole is

the setting you’ll find in most one-knob phasers, and 3-pole

sounds quite different from both.

resonance – selects the amount of feedback applied to the

wet signal. Feedback creates a resonance peak in between the

valleys in the frequency response when the phase shifted

signal is added back with the original signal.

expression – selects what parameter is controlled by any

expression pedal or control voltage (CV) device attached to

the control port on the pedal. More details can be found on

page 16.

tap – in tap mode this switch is used to set the tempo, or

speed, of the phasing effect by repeated tapping.

In knob mode this switch restarts the phasing effect at the

beginning of the wave form when tapped. When held down in

knob mode it acts as a brake, gradually reducing the speed of

the effect to the minimum value for the selected speed range.

Auto Mode Controls

sensitivity – Sets how sensitive envelope follower and trigger

detector is to dynamic changes in the audio coming into the

pedal. See the Auto mode section on page 9 for a detailed

description.

attack - Sets the attack time for the envelope and trigger

responses. Please see page 9 for a detailed description.

release –Sets the release time for the envelope and trigger

responses. See page 9 for a detailed description.

submode – selects the submode. The submodes are described

in detail on page 11.

tap – reverses the action of the phase shifting effect. For

example, in a speed-follows-envelope mode, the phasing

effect speeds up as the input signal gets louder. Pressing the

tap switch in this situation would cause the speed to get

slower as the signal got louder.

Controls Common to All Modes

bypass – puts the pedal in true bypass. Bypassing is

implemented with a relay, which has conductivity and

isolation as good as a traditional mechanical switch, but is

more reliable.

input – a high impedance (Hi-Z) instrument input jack.

output – output jack. Sound appears here.

blend exp – allows you to connect an expression pedal to

control the blend. When an expression pedal is attached to

this jack the blend knob setting is ignored. We recommend

turning down your amplifier before connecting or

disconnecting an expression pedal.

control port – allows you to connect an expression pedal,

control voltage device or external audio signal to control an

assignable parameter on the pedal. For more information

please see page 16.

power – the Empress Phaser requires a 9V DC, 2.1mm,

negative tip power supply. Any 9V DC supply that has a

current rating of 120 mA or greater will work. The Boss PSA-

120 is a popular choice and works well.

Auto Mode

In auto mode, effect parameters change based on how you

are playing. The changes follow the envelope of the input

signal, increasing or decreasing as the input signal gets louder

or quieter or are triggered by sudden changes in the signal

volume.

Effect parameters are changed in one of two ways when you

use auto mode:

1. Envelope Follow

When following an envelope in auto mode, the pedal

tracks the input volume and moves a parameter to

follow the changes in the volume level. The envelope

follow approach is used in submodes 1 through 4.

2. Trigger Detection

When detecting a trigger in auto mode, the pedal

tracks the signal and when a sudden, rapid increase in

volume occurs it changes a parameter from a low value

to a high value and then back down to a low value. The

kind of actions that would set off a trigger might be an

aggressive strum on a guitar or a chord hit on a

Rhodes. The trigger detection approach is used in

submodes 5 and 6.

The Attack and Release Controls

When using a submode that employs envelope detection, the

attack switch determines how quickly the pedal reacts to a

increase in input signal volume.

For example: with submode 2 selected and the attack set to

fast, when a sudden increase in volume occurs the unit will

change to a faster speed almost instantly. With the attack set

to slow it takes much longer for the speed of the effect to

increase.

The release knob controls how quickly the pedal reacts to a

decrease in input signal volume. Set fully counter-clockwise

the release time is the fastest, set fully clockwise it is slowest.

A slower release time generally sounds a bit smoother and a

faster release time, more abrupt and jarring.

When using a submode that employs trigger detection, the

attack switch sets the speed at which the pedal moves the

parameter from its minimum to maximum values. The release

knob sets the speed at which the parameter returns back to its

starting value.

We recommend you start with the attack switch and release

knob both set to their fastest settings when starting out with

auto mode. With these settings it’s most apparent what each

submode is controlling and how it sounds when you vary your

input signal. Once you’ve got a feel for what’s happening in

the submode, slow things down to taste.

Setting the expression switch to 'width' will allow you to

control the release with an expression pedal.

Sensitivity

The sensitivity knob controls how the pedal listens to your

input signal when in auto mode. For quieter, softer input

signals or quieter passages you should set the sensitivity to a

higher value. For louder input signals or passages it should be

turned down.

The red LED above the tap switch turns on when the pedal

detects a trigger threshold in your input signal when it’s in a

submode that uses trigger detection. If you find that auto

mode is missing some of the triggers, increase the sensitivity.

If you find that auto mode is triggering when it shouldn’t be

then decrease the sensitivity.

When the pedal is in a submode that uses envelope detection

the red LED above the tap switch will light up red when it is

detecting maximum volume. Ideally, in envelope based

submodes, the LED will only light up when you’re playing your

absolute loudest. This will ensure you are experiencing the full

range of the parameter sweep.

Setting the expression switch to 'speed' will allow you to

control the sensitivity with an expression pedal.

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