Korg PX4 Le manuel du propriétaire

2

Precautions

Location

Using the unit in the following locations can re-

sult in a malfunction.

• In direct sunlight

•

Locations of extreme temperature or humidity

• Excessively dusty or dirty locations

• Locations of excessive vibration

• Close to magnetic fields

Power supply

Please connect the designated AC adaptor to

an AC outlet of the correct voltage.

Do not connect it to an AC outlet of voltage

other than that for which your unit is intended.

Interference with other electrical de-

vices

This product contains a microcomputer. Radi-

os and televisions placed nearby may experi-

ence reception interference. Operate this unit

at a suitable distance from radios and televi-

sions.

Handling

To avoid breakage, do not apply excessive force

to the switches or controls.

Care

If the exterior becomes dirty, wipe it with a clean,

dry cloth. Do not use liquid cleaners such as

benzene or thinner, or cleaning compounds or

flammable polishes.

Keep this manual

After reading this manual, please keep it for

later reference.

Keeping foreign matter out of your

equipment

Never set any container with liquid in it near

this equipment. If liquid gets into the equipment,

3

THE FCC REGULATION WARNING (for U.S.A)

This equipment has been tested and found to comply

with the limits for a Class B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful inter-

ference in a residential installation. This equipment gen-

erates, uses, and can radiate radio frequency energy

and, if not installed and used in accordance with the

instructions, may cause harmful interference to radio

communications. However, there is no guarantee that

interference will not occur in a particular installation. If

this equipment does cause harmful interference to ra-

dio or television reception, which can be determined

by turning the equipment off and on, the user is en-

couraged to try to correct the interference by one or

more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and

receiver.

• Connect the equipment into an outlet on a circuit dif-

ferent from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV tech-

nician for help.

Unauthorized changes or modification to this system

can void the user’s authority to operate this equipment.

CE mark for European Harmonized Standards

CE mark which is attached to our company’s products

of AC mains operated apparatus until December 31,

1996 means it conforms to EMC Directive (89/336/

EEC) and CE mark Directive (93/68/EEC). And, CE

mark which is attached after January 1, 1997 means it

conforms to EMC Directive (89/336/EEC), CE mark Di-

rective (93/68/EEC) and Low Voltage Directive (73/23/

EEC).

Also, CE mark which is attached to our company’s prod-

ucts of Battery operated apparatus means it conforms

to EMC Directive (89/336/EEC) and CE mark Direc-

tive (93/68/EEC).

it could cause a breakdown, fire, or electrical

shock.

Be careful not to let metal objects get into the

equipment. If something does slip into the

equipment, unplug the AC adaptor from the wall

outlet. Then contact your nearest Korg dealer

or the store where the equipment was pur-

chased.

4

Contents

Introduction-------------------------- 6

Main features ----------------------- 6

Turning on the power ------------- 8

Battery Low display --------------------- 8

Controls and connectors ---------- 8

LCD screen------------------------------- 10

Making connections ------------- 11

Initial Settings --------------------- 12

Quick Edit ------------------------------- 12

Play mode ------------------------- 13

1.Selecting a program---------------- 13

2.Master level -------------------------- 13

3.Bypass/Mute ------------------------- 13

4.Tuner ----------------------------------- 14

5.Specifying the

function of the Value Dial--------- 15

6.Key Lock function ------------------- 16

Rhythm & Bass mode ----------- 16

1.Rhythm Pattern ---------------------- 17

2.Tempo---------------------------------- 17

3.Bass On/Off & Bass Key ---------- 17

4. Rhythm & Bass Reverb Level ---- 18

Chain Pattern settings ---------------- 18

Phrase Trainer mode ------------ 19

1.Select the recording mode -------- 19

2.Recording ----------------------------- 20

3.Playback ------------------------------ 21

4.Pause ---------------------------------- 21

AUX Pitch mode ------------------ 22

5

Edit mode -------------------------- 22

1.Select the effect

that you wish to edit --------------- 23

2.Editing each effect ------------------ 23

1) DYNA (Dynamics &

Pick up Modeling)--------------- 23

2) AMP (Amp Modeling) --------- 23

3) CAB (Cabinet Modeling) ----- 24

4) MOD (Modulation &

Filter Effect Modeling) --------- 24

5) DLY (Delay Modeling) --------- 24

6) REV (Reverb Modeling)------- 25

7) NR (noise reduction)----------- 25

8) RENAME ------------------------- 25

9) TX (Infrared transmitter) ------ 26

10) WRITE --------------------------- 26

3.Reloading the factory programs 27

Troubleshooting------------------- 27

Effect Parameter------------------ 29

DYNA (Dynamics

& Pickup modeling)---------------- 29

AMP (AMP Modeling) ---------------- 31

CAB (Cabinet modeling) ------------- 34

MOD (Modulation &

Filter Effect Modeling) ------------ 35

About the Intelligent

Pitch Shifter ------------------ 37

DLY (Delay Modeling)----------------- 38

REV (Reverb Modeling) -------------- 38

Preset Program Name ---------- 39

Rhythm Pattern List -------------- 40

Specifications---------------------- 41

6

Introduction

Thank you for purchasing the TONEWORKS

PANDORA PX4 personal multi-effect proces-

sor. In order to enjoy your PANDORA PX4,

please read this owner’s manual carefully and

retain it for future reference.

Main features

The PX4 is a highly versatile multi-effect device

in a compact package. It makes it easy to use

Korg's proprietary " " modeling technol-

ogy to create detailed and powerful modeling

sounds.

124 types of effect variations

A maximum of seven effects can be used si-

multaneously.

IPE (Integrated Parameter Edit) system

Easy to adjust effect settings.

50 user and 50 preset programs

Amp modeling selector and control knobs

Of the 15 different varieties, 11 types of amp

models can be edited quickly and easily.

Infrared transmitter built-in

Infrared wireless headphones can be used for

remote wireless monitoring.

Backlit LCD

The LCD screen can be easily viewed even in

dark locations.

Auto Tuner function

This feature makes tuning fast and easy. You

can also tune without being heard (i.e., while

muted).

Rhythm and bass function

39 types of rhythm and bass patterns or a met-

ronome can be sounded. Multiple patterns can

also be connected for successive playback.

7

AUX pitch function

You can transpose the pitch of the sound from

a CD player or other audio source connected to

the AUX jack.

Phrase Trainer function

Sound from a CD player or guitar can be re-

corded (maximum of 30 seconds), and played

back as a loop. The playback speed can then

be slowed down without affecting the pitch of

the sound. The rhythm selected in Rhythm &

Bass mode and the effect output can also be

recorded simultaneously.

TAP button

You can easily set the Delay Time or the tempo

of the Rhythm & Bass function to match the tem-

po of the song.

Value dial

This lets you rapidly select programs or edit the

effects.

What is

?

(Resonant structure and Electronic

circuit Modeling System) is KORG’s propri-

etary sound modeling technology which

precisely reproduces the complex charac-

ter and nature of both acoustic and electric

instruments as well as electronic circuits in

real world environments.

emulates

a wide variety of sound generation charac-

teristics including instrument bodies, speak-

ers & cabinets, acoustic fields, micro-

phones, vacuum tubes, transistors, etc.

8

Turning on the power

Remove the battery cover located on the bottom

of the PX4 by sliding it in the direction of the ar-

row. Insert four AAA al-

kaline batteries as

shown in the illustration.

Be sure to insert the bat-

teries observing the cor-

rect polarity.

Battery Low display

When the battery begins to run down, the Low

Battery icon

will light. When this icon lights, re-

place the batteries as soon as possible.

Programs and other data (except for the data

being edited) will not be lost even if the battery is

removed and changed.

Batteries that have run down must be removed

from the PX4. If you leave dead batteries in the

unit, malfunctions (battery leakage, etc.) may

occur. You should also remove the batteries

when you do not expect to use the PX4 for an

extended period of time.

An AC adapter is not included with this prod-

uct. It must be purchased separately.

Controls and connectors

1 Control knobs

These knobs control the gain, tone, and vol-

ume of the amp modeling.

2 Liquid Crystal Display (LCD)

3 TUNE/BYPASS button

4 EXIT button

This button returns you back to Play mode from

any mode.

9

5 ENTER/REC button

This button is used to switch an effect on/off,

or to start recording in Phrase Trainer mode.

6 Input level switch

Use this to adjust the input level (appropriate

for the output level of your guitar).

7 Amp Modeling selector

Select the type of amp modeling.

8 ▲/▼ buttons

Use these buttons to select programs and edit

effects,

9 OUTPUT jack

Connect this jack to your guitar amp or head-

phones etc.

0 INPUT jack

Connect your guitar to this jack.

A AUX jack (stereo)

Connect this jack to a CD player or other au-

dio source.

B DC4.5V

The separately sold AC adapter (DC4.5V

) should be connected here.

C √/® buttons

Use these buttons to select the parameter that

you wish to edit, and to operate the Phrase

Trainer function.

D Power switch/Backlight switch

This switch turns the power on/off, and also

turns the backlight on/off.

If you are operating the PX4 on batteries, the

operating time will be shorter if you turn on the

infrared transmitter or backlight.

E Value dial

Use this to adjust master level, edit effects,

and select programs.

F TAP button

You can set the Delay Time by pressing this

button twice at the desired tempo of delay. In

Rhythm & Bass mode, you can set the tempo

of the rhythm in the same way.

G Mode buttons

Use these buttons to enter Rhythm & Bass,

Phrase Trainer, or AUX Pitch modes.

10

LCD screen

1 Effect chain

This area indicates the on/off status of the

DYNA, AMP, CAB, MOD, DLY, and REV ef-

fects

2 Program name/Effect type display

This area shows the program name or effect

type. When the PX4 is bypassed or muted, this

will function as the tuner.

3 Low Battery icon

This icon will light when the batteries run down.

4 Mode icons

These icons will light when you are in AUX

Pitch, Phrase Trainer, or Rhythm & Bass

modes.

5 Infrared transmitter icon

This icon will light when the infrared transmit-

ter is on.

6 Edit/Original icons

The EDIT icon will light when you enter Edit

mode. If the parameter or value being edited

matches the value that is written in the pro-

gram, the ORIG icon will light.

7 Program number / value display

This displays the program number.

When you change the Master Level, its value

will be displayed here for several seconds.

During editing, this displays the parameter

values.

8 Master/Value icons, bar graph

When MASTER is lit, the master level of the

program is indicated graphically. When VAL-

UE is lit, the value of the parameter is indicat-

ed graphically.

11

Making connections

When connecting an external device (ie-guitar

amp, stereo, ac adapter, etc)be sure to turn the

unit off.

*1 Do not block the transmission window when

using the infrared transmitter function.

*2 Be sure to use only the specified AC adapter

(DC4.5V

).

*3 If a CD player or other audio source is con-

nected to AUX jack, you can play along on

your guitar with a tape, etc. However the vol-

ume must be adjusted on the connected de-

vice.

*4 Connecting cables are sold separately.

*5 PX4’s output jack is stereo. If you use a stan-

dard mono cable to connect it to a guitar amp

etc., only the L (left) output will be heard.

*6 PX4’s output level and sound quality will vary

depending on which headphones are used.

We recommend using good quality low imped-

ance headphones, 32 Ohms or less with a

sensitivity rating near 100dB/mW or above.

Many headphones sold for use with portable

CD or cassette players will work just fine.

12

Initial Settings

1. When you finish making connections, set the

power switch in the “ON” position. (This set-

ting is referred to as Play mode.)

Use the ▲/▼ buttons to select a program.

2. Set the input level switch to a position appro-

priate for the output level of your guitar.

Hi: Guitars with a high output level

(humbucking pickups)

Lo: Guitars with a low output level

(single coil pickups)

3. Set the volume control of the guitar to its usual

position.Use the Value dial to adjust the mas-

ter level.

If you want to use the infrared transmitter func-

tion, refer to p.26 of Edit mode, "9) TX (infrared

transmitter)."

Quick Edit

In each mode (except when Mute/Bypass or Key

Lock are active), you can use the Amp Model-

ing selector to quickly change the amp model-

ing type, or use the control knobs to adjust the

gain, tone, or volume of amp modeling. When you

move a control knob, the parameter name and

value will appear for several seconds in the val-

ue display. If the setting matches the original set-

ting, the ORIG icon will light.

The Delay Time of Delay Modeling can also be

set by pressing the TAP button twice at the de-

sired interval (except when in Rhythm & Bass

mode). To check the Delay Time that was speci-

fied, press and hold the TAP button for two sec-

onds or longer.

13

Settings that you make using Quick Edit will re-

turn to the original settings of the program if you

change programs or turn off the power before

Writing (see p.26).

Play mode

Play mode is the mode in which you will normally

use the PX4.

1.Selecting a program

You can choose from 50 user programs

(U01...U50) and 50 preset programs (P01...P50).

Use the ▲/▼ buttons to select a program. Pro-

grams can be selected even when you are in

Rhythm & Bass mode, AUX Pitch mode, or

Phrase Trainer mode (except while recording).

2.Master level

When the MASTER icon is lit, the value graph

will indicate the master level.

When you turn the Value dial to adjust the mas-

ter level, the master level value will be shown in

the program number / value display for several

seconds. The master level is remembered even

when the power is turned off.

Master level value

Program number display

Master icon

Value graph

You can also adjust the settings so that the ▲/▼

buttons will adjust the master level. (See p.15)

3.Bypass/Mute

When you press the TUNE/BYPASS button, the

PX4 will be bypassed, and the original sound will

not be processed by any effect.

The effect chain will blink, and the display will

indicate “BYPASS” for approximately one second.

If you press and hold the TUNE/BYPASS button

for longer than one second, the output signal will

be muted.

The effect chain will blink rapidly, and the display

will indicate “MUTE” for approximately one second.

14

Bypass/mute will be turned off when you press

the TUNE/BYPASS button once again.

You can also return to Play mode by pressing the

EXIT button.

Bypass or Mute can also be entered from modes

other than Play mode.

4.Tuner

The tuner will operate when you bypass or mute.

Play a single string on your guitar. The LCD will

show the note name and the calibration. If the

pitch is more than a semitone higher than the

note name, a sharp symbol will appear at the

upper right of the note name.

The display area will act as a meter to show the

pitch.

Tune the string of your guitar so that the indicator

above the center mark is lit.

The tuner (bypass/mute) will be turned off when

you press either the TUNE/BYPASS button.

You can also return to Play mode by pressing the

EXIT button.

Calibration

(frequency of the standard A = 440 pitch)

You can use the Value dial to adjust calibration

in the range of A = 438 Hz...445 Hz.

The calibration setting you make will be valid until

the power is turned off. Once the power is turned

off, calibration will be reset to A = 440 Hz.

15

5.Specifying the function of the Value Dial

You can specify the function that the Value dial

will perform in Play mode. In Play mode, hold

down the EXIT button and press either the √

button or the ® button to assign the following

functions.

● Hold down the EXIT button and press the √

button.

The LCD will indicate “MASTER” for approx-

imately one second.

The Value dial will

adjust the master level,

and the ▲/▼ buttons will

select programs.

You can use the Value dial to adjust the mas-

ter level quickly. Each time the power is turned

on, this setting will be in effect.

● Hold down the EXIT button and press the ®

button.

The LCD will indicate “PROGRAM” for ap-

proximately one second.

The Value dial will

select programs, and the

▲/▼ buttons will

adjust the master level.

You can use the Value dial to select programs

quickly.

If you want to change the function of the Val-

ue dial so that it will

adjust the master level,

hold down the EXIT button once again and

press the √ button, or turn on the power

once again.

16

6.Key Lock function

By activating the Key Lock function, you can

disable all operations except for selecting pro-

grams. This is a convenient way to prevent

accidental operation during a live perfor-

mance.

Hold down the EXIT button and press the

TUNE/BYPASS button. The LCD will indicate

“KEYLOCK” for approximately one second.

The ▲/▼ buttons will select programs, and oth-

er buttons and the Value dial will not function.

The Key Lock function will be cancelled when

the power is turned off. You can also cancel

the Key Lock function by performing "5. Val-

ue Dial function setting."(p.15).

Rhythm & Bass mode

To enter Rhythm & Bass mode, press the

RHYTHM button once when in Play mode (ex-

cept for mute/bypass or key lock), AUX Pitch

mode, or Phrase Trainer mode.

When you enter this mode, the Rhythm Pattern

selection screen will appear, the selected rhythm

will start, and the Rhythm & Bass mode icon

will light. The indication of the value graph will

change according to the pattern or tempo.

This mode contains the following four parame-

ters. Use √/® to select parameters, and use

the Value dial and the ENTER/REC button to

set the value of each parameter.

If you select "CHAIN" as the rhythm pattern, there

will be more chain pattern settings. (Refer to p.18,

"Chain pattern settings")

17

CHAIN

If you select "JAM" as the recording mode in

Phrase Trainer mode, the rhythm will sound with

the pattern and tempo that you specify here.

The settings you select here are remembered

even when the power is turned off.

1.Rhythm Pattern

Use the Value dial to select the rhythm pattern

(p.40)

Rhythm Pattern

Rhythm & Bass mode icon

2.Tempo

Set the tempo in the range of 40–208 bpm.

You can also set the tempo by pressing the TAP

button twice at the desired rhythm.

For a 6/8 time signature, the tempo can be set in

a range of   =40–208.

3.Bass On/Off & Bass Key

Here you can switch the bass on/off, and specify

the key in which the bass will play.

If you press the ENTER/REC button in this

screen, the bass will play in time with the rhythm.

Depending on the rhythm pattern that you have

selected, some bass lines will include a chord

progression.

When the bass note is on, you can use the Value

dial to set the key in a range of C, C



...A



, B, al-

lowing you to practice your guitar in a scale that

matches that key.

18

If “METRONM” (metronome) is selected as the

rhythm pattern, there will be no bass notes, and

this screen will not appear.

When using Chain Patterns, the Bass Key set-

ting will be ignored.

4. Rhythm & Bass Reverb Level

Use the Value dial to set the amount of Rhythm &

Bass sound that will be sent to reverb modeling.

The same effect as for the guitar is used for re-

verb. This parameter has no effect if you have

selected a program that does not use reverb

modeling, or if the reverb effect level is "0."

Chain Pattern settings

These parameters are added only if you select

"CHAIN" as the rhythm pattern. Press the EN-

TER/REC button to access the Chain Parame-

ter Select screen. Use the √/® buttons to se-

lect the location (1...8) for which you want to

change the pattern, and use the Value dial to

select the pattern (p.40) that will be used at that

location. Use the ▲/▼ buttons to specify the bass

key of the selected pattern.

Up to 8 patterns can be connected. If you want to

create a chain of 7 or fewer patterns, select "PTN

END" for the last pattern.

Press the ENTER/REC button to exit the Chain

Pattern Select screen.

19

Phrase Trainer mode

An audio source from the AUX jack or a phrase

you play on your guitar can be recorded, and

played back repeatedly as a loop.

This provides a convenient way to practice by

playing along with the repeating phrase.

You can slow down the playback speed without

affecting the pitch, which can help you to learn

difficult phrases.

If you select "JAM" as the recording mode, the

rhythm you specified in Rhythm & Bass mode

will be recorded simultaneously with the guitar

input, and looped.

1.Select the recording mode

In Play mode (except during bypass/mute or key

lock), Rhythm & Bass mode, or AUX Pitch mode,

press the PHRASE TRAINER button to enter

Phrase Trainer mode.

When you enter this mode, the recording mode

and time select screen will appear, and the

Phrase Trainer icon will blink. In this screen, the

PX4 will be ready to record.

The recording mode will cycle through the fol-

lowing choices each time you press the PHRASE

TRAINER button.

AUX Records only the AUX input

GUITAR Records only the guitar sound

AUX+GTR Records both the AUX input and

guitar

JAM Records the guitar together with

the rhythm that was last selected

in Rhythm & Bass mode

Use the value dial to select the recording time

(for "JAM," the number of measures).

8 Approximately 7.9 seconds

16 Approximately 15.8 seconds

32 Approximately 31.7 seconds

1, 2, 4, 8 Number of measures

20

If the recording mode is "JAM," the recording

quality will be set automatically, based on the tem-

po and the specified number of measures.

If you select a long recording time (16 or 32),

the audio quality of the recording will be lower.

If the tempo of the rhythm is extremely slow, it

will not be possible to record a large number of

measures. Please re-specify the tempo in

Rhythm & Bass mode (maximum length is ap-

proximately 31.7 seconds)

Start playback on your CD or other audio source,

and at the point where you wish to begin record-

ing, press the ENTER/REC button. Recording

will begin.

If the recording mode is "JAM," recording will

begin after two measures of playback.

If, after recording, you want to change the re-

cording mode or recording time, press the

PHRASE TRAINER button while playback is

paused.

The recorded content will be lost when the power

is turned off.

2.Recording

When you begin recording, the recording time will

be indicated as a numerical value and by a value

graph.

Recording

time display

When you want to stop recording, press the EN-

TER/REC button or the [

]. Recording will

stop, and loop playback will begin automatically.

If you do not stop recording, recording will con-

tinue until the selected recording time has

elapsed, and loop playback will begin automati-

cally.

If the recording mode is "JAM," recording will end

automatically at the specified number of mea-

sures, and will switch to loop playback.

The phrase will be recorded and played back in

mono.

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