Lexicon LXP-5 Owner's Manual

Owner's Manual

LXP-5

Effects

Processing

Module

Owner's Manual

LXP-5

Effects

Processing

Module

Unpacking and Inspection

After unpacking the LXP-5, save all packing materials in case you ever need to ship the unit.
Thoroughly inspect the LXP-5 and packing materials for signs of damage. Report any shipment
damage to the carrier at once; report equipment malfunction to your dealer.

Notice

This equipment generates and uses radio frequency energy and if not installed and used
properly, that is, in strict accordance with the manufacturer's instructions, may cause interfer­ence to radio and television reception. It has been type tested and found to comply with the limits
for a Class A computing device in accordance with the specifications in Subpart J of Part 15
of FCC Rules, which are designated to provide reasonable protection against such interference
in a residential installation. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause interference to radio or television
reception, which can be determined by turning the equipment OFF and ON, the user is
encouraged to try to correct the interference by one or more of the following measures:

If necessary, the user should consult the dealer or an experienced radio/television technician
for additional suggestions. The user may find the following booklet prepared by the Federal
Communications Commission helpful:

This booklet is available from the U.S. Government Printing Office, Washington, DC 20402,
Stock No. 004-000-00345-4.

Reorient the receiving antenna
Relocate the computer with respect to the receiver
Move the computer away from the receiver
Plug the computer into a different outlet so that the computer and receiver are on
different branch circuits.

"How to identify and Resolve Radio/TV Interference Problems."

Copyright 1989, 1995
All Rights Reserved.

Lexicon Part #070-07332 Rev 1

Lexicon Inc.
3 Oak Park
Bedford, MA 01730USA
Telephone [phone]
Fax [phone]

Table of Contents

Introduction

1. Installing the LXP-5

Unpacking..........................................................................1-1

Mounting............................................................................1-1

Power ................................................................................1-1

Front Panel Controls..........................................................1-2

Rear Panel Connectors .....................................................1-3

Audio Connections ............................................................1-4

2. Front Panel Operation

Setting Audio Levels..........................................................2-1

LED Signals.......................................................................2-3

Selecting Preset Programs................................................2-4

User Memory .....................................................................2-7

Creating Your Own Sounds.............................................2-11

Storing and Recalling sounds..........................................2-19

Footswitch Operation.......................................................2-22

3.MIDI Operation

Accessing Programs..........................................................3-1

Patches and Dynamic MIDI ..............................................3-4

Creating Patches Using MIDI SysEx Data ......................3-11

Assigning Switches as Control Sources ..........................3-12

4. MIDI Implementation Data

Data/Event Requests.........................................................4-1

Transmit/Receive Data ......................................................4-2

Parameter Definitions ........................................................4-6

Microcode Parameters ......................................................4-9

Implementation Chart ......................................................4-14

5. Specifications

User Program Log Sheet

Introduction

Congratulations on your purchase of the LXP-5 Effects Processing Module!
You are about to experience superb sound quality, a full range of pitch
shifting, delay and reverb effects, fast intuitive editing of preset sounds, and
an industry-leading MIDI implementation.

The LXP-5 offers a rich and distinctive palette of special effects, including
128 programs to get you started — 64 preset effects programs and an
additional 64 programs stored in RAM user memory locations. Each
program has up to five variable parameters that you can adjust for subtle or
dramatic changes in the program’s sound, and you can store as many as 128
customized programs in user memory. All of the LXP-5 functions are
accessible from the front panel, or via MIDI, providing truly world-class
flexibility and control. From pitch shifting to stereo delays and flanging, the
LXP-5 delivers superior performance. Whether you are a producer, engi­neer, or musician—whether you work on stage or in the studio—the LXP-5
will quickly become an indispensible part of your sound.

We’re confident you’ll find that the LXP-5’s unique combination of state-of­the-art sound and extraordinary versatility is exactly what you’re looking for.
A Quick Reference card provides the basics of operation in a compact
format to get you up and running as quickly as possible — but to make sure
you don’t miss out on anything, we’d like you to read this manual. It provides
a thorough explanation of both front panel and MIDI operation, program
descriptions, and complete MIDI Implementation data — all the information
you need to access the full power of the LXP-5.

Installing the LXP-5

1. Installing the LXP-5

Unpacking

After unpacking the LXP-5, save all packing materials in case you ever need
to ship the unit. Thoroughly inspect the LXP-5 and packing materials for
signs of damage. Report any shipment damage to the carrier at once. The
following accessories are included with the LXP-5:

1. Quick Reference card

2. Owner's Manual

3. Power pack (USA Part # 470-07345)

4. Warranty card (USA only)

Mounting

The LXP-5 measures 8.5"W x 1.7"H x 9.5"d (215.9 x 43.2 x 241.3 mm). The
optional rack mounting kit (A-LXP-R) handles one or two units in a single
rack space. Whatever mounting method you use, make sure that the LXP­5 is securely screwed into the rack adapter – "friction fit" or double-stick tape
installations may allow units to loosen during transportation, resulting in
damage.

The maximum ambient operating temperature is 35°C (95°F). Provide
adequate ventilation if the LXP-5 is mounted in a closed rack with heat­producing equipment such as synthesizer modules, effects units, or power
amplifiers. Avoid mounting the LXP-5 directly above power amplifiers.

Power

Connect the LXP-5 power pack to an appropriate AC wall socket, and the
cable end to the LXP-5 power connector. The LXP-5 must be used only with
the supplied power pack. Voltage requirements are printed on the power
pack. The LXP-5 has no power switch – it can be left on all the time. To keep
the power plug from working loose from the rear of the unit during transport,
you may wish to apply a small amount of silicone sealer to the plug after
inserting it.

1-1

LXP-5 Owner's Manual

Y

LXP-5 Front Panel Controls

Input

Sets the audio input
level.

Mix

Controls the ratio of dry
(source) to wet (effect)
signal present at the
LXP-5 outputs. (Turn
the control all the way
to the left for 100% dry/
0% wet.)

Output

Controls the signal
level sent to the LXP-5
outputs.

Learn

This button is used to
store and edit pro­grams, to learn
patches and, with an
external MIDI device,
to select MIDI channel.

Learn LED

Confirms that power is
on, and blinks in red or
green at different rates
to indicate LXP-5 sta­tus.

exicon

INPUT

MIX

Level Indicators

The left LED indicates
signal present; the right
flashes red when the
signal is -3dB from
peak overload.

1-2

PRESET USER

OUTPUT

PITCH

DELA

CHORUS

MULTI

A

EDIT

B
C

BYPASS

Function and Select

Used for selection of
factory presets, User
memories, Bypass and
three edit modes.

SELECT

1
2
3
4
5
6
7
8

Adjust

Used to adjust program
parameter(s), or to ad­just the selected pa­rameter in Edit Mode.

LXP-5

LEARN

LXP-5 Rear Panel Connections

MIDI IN

Receives MIDI infor­mation from other MIDI
equipment such as
master keyboard con­trollers, MIDI foot con­trollers, sequencers
and synthesizers.

Footswitch

Connector for toggle
(Push on/push off) or
momentary contact
footswitch.

Installing the LXP-5

Outputs (L and R)

Single-ended (unbal­anced) stereo outputs
provide +4dBu nominal
output level.

Dynamic MIDI® FOOTSWITCH

IN

OUT - THRU

MIDI THRU (OUT)

With the recessed slide
switch set for MIDI
THRU, any MIDI data
received is sent without
change. The recessed
slide switch can also be
set for MIDI OUT.

POWER

9V AC

MIDI

1.5A

LEXICON LXP-5

ASSEMBLED IN HONG KONG

Power

Accepts power from
the supplied power
pack.

OUTPUTS INPUTS

L

R

L

THIS EQUIPMENT COMPLIES WITH THE REQUIREMENTS IN

PART 15 OF FCC RULES FOR A CLASS A COMPUTING DEVICE

Inputs (L and R)

Single-ended (unbal­anced) inputs accept
levels from -25 to
+20dBu. Input imped­ance is 50 kilohms in
stereo, 25 kilohms in
mono.

R

1-3

LXP-5 Owner's Manual

Audio Connections

This section outlines several connection possibilities for the LXP-5. Be­cause each sound system is unique, we recommend experimentation to
arrive at the best configuration for your system. Always check connections
for proper impedance, polarity, and levels.

Audio connections to the LXP-5 are unbalanced, and should be made with
high quality shielded cables with 1/4" tip-sleeve phone jacks at the LXP-5
end. The connectors must be wired as shown below:

Sleeve - Shield/Ground

Tip - High

If only 1/4" tip-ring-sleeve phone jacks are available, they must be wired as
shown:

Sleeve - Shield/Ground

Tip - High

Ring - Connect to Sleeve

Mono or stereo?

The LXP-5 produces wonderful stereo effects from either mono or stereo
signal sources. For mono sources, use either of the two input connectors;
the dry signal appears (along with the stereo effects) in mono at both output
connectors. For instruments and sources with stereo outputs, use both
inputs. We recommend using both LXP-5 outputs whenever possible but, if
mono output is required, you can use just one of the two output connectors.
When only one output is used, the left and right signals are summed
internally .

Some of the examples on the following pages use stereo instruments and
amplification systems, others use mono. Feel free to adapt the examples to
your specific requirements.

1-4

Installing the LXP-5

Y

Channel Input or
Effects Return (R)

Channel Input or
Effects Return (L)

Effects
Send

Input

(L or R) R Output

exicon

INPUT

MIX

L Output

PITCH

OUTPUT

DELA

CHORUS

MULTI

EDIT

PRESET USER

A
B
C

BYPASS

SELECT

1
2
3
4
5
6
7
8

LXP-5

LEARN

Connection to a mixing console's effects sends

If you will be using an LXP-5 as your primary effects unit, and your system
includes a console with one or more auxiliary (effects) sends, connect the
LXP-5 as shown above. In most applications, it is preferable to connect the
LXP-5 outputs to two of the console's input channel strips, panned full left
and right, rather than the effects returns. This allows the greatest flexibility
in routing and equalization.

In this configuration the console controls are used to set the amount of effect
heard—the LXP-5 front panel MIX control should be set fully clockwise for
100% wet.

1-5

LXP-5 Owner's Manual

Y

Channel Input
(pan right)

Channel Input
(pan left)

LXP-5

L Output

exicon

INPUT

MIX

PRESET USER

PITCH

OUTPUT

DELA

CHORUS

MULTI

A

EDIT

B
C

BYPASS

1
2
3
4
5
6
7
8

SELECT

LXP-5
R Output

LXP-5

LEARN

In In

Synth

L Output

Synth
R Output

Connection between instrument and console

In some applications (such as when an LXP-5 is used for a single instrument)
it may be desirable to patch the LXP-5 between the instrument and console.
This makes it possible to keep the LXP-5 up on stage with other MIDI gear,
rather than in the console effects rack, making MIDI control much easier.

In this configuration, the LXP-5 front panel MIX control is used to set the
balance between wet and dry sound.

1-6

Guitar

Y

Output

Installing the LXP-5

LXP-5 Input

(L or R)

Amp
L Input

exicon

INPUT

MIX

OUTPUT

LXP-5
L Output

PRESET USER

PITCH

1

DELA

CHORUS

2

MULTI

3
4

A

5

EDIT

B

6

C

7
8

BYPASS

LXP-5

SELECT

LXP-5
R Output

R Input

LEARN

Amp

Connection between instrument and amplifier

For a very spacious guitar sound, connect the LXP-5 between a guitar and
two amp and speaker stacks. The only problem with this setup is that if you
use overdrive distortion created by the amplifier, changing settings on the
LXP-5 also affects the quantity and quality of your distortion. If you use a
separate distortion box, you can get around this problem by connecting it
before the LXP-5. If you prefer amplifier-generated distortion, try the setup
shown on the next page.

1-7

LXP-5 Owner's Manual

Y

WARNING! Never connect speaker outputs from a

guitar amp to the LXP-5. Doing so can cause serious
damage which is not covered by the LXP-5 warranty.
On some guitar amplifiers it is very easy to accidentally
use a speaker output instead of a direct or effects
output. BE CAREFUL!

Guitar
Output

Amp or

Preamp

Input

Direct or
Preamp output

LXP-5 Input (L or R)

exicon

INPUT

Amp

L Input

MIX

OUTPUT

LXP-5
L Output

PRESET USER
PITCH
DELA

1

CHORUS

2

MULTI

3
4

A

5

EDIT

B

6

C

7
8

BYPASS

LXP-5

SELECT

LXP-5
R Output

Amp
R Input

LEARN

L and R Speaker Outputs from Power Amp

Connection between instrument preamp and power amplifier(s)

If you use overdrive distortion, it's usually better to create the overdrive

before

sending the signal to the LXP-5 to ensure that the effects don't
change the quantity and quality of your distortion. In this setup, you need a
guitar preamplifier or a guitar amp with a direct output. Feed this signal to
either of the LXP-5 inputs, and then on to a stereo power amp or a pair of
guitar amps. (A few guitar amplifiers become unhappy if they are operated
without speakers connected. Consult the amp manufacturer for details.)

You can use the effects send and return connectors on a mono guitar amp
to obtain similar results. Adjust the LXP-5 output level so that the amp
produces the same output with the LXP-5 as it does without it.

1-8

Console

Y

Y

Inputs

Console
Inputs

Installing the LXP-5

LXP-5 Outputs

(L and R)

exicon

INPUT

MIX

OUTPUT

LXP-5 Inputs

PRESET USER
PITCH
DELA

1
2

CHORUS

3

MULTI

4

A

5

EDIT

B

6

C

7
8

BYPASS

LXP-5

LEARN

SELECT

LXP-5 Outputs

exicon

INPUT

MIX

OUTPUT

LXP-5 L Input

(L and R)

PRESET USER
PITCH
DELA

1

CHORUS

2

MULTI

3
4

A

5

EDIT

B

6

C

7
8

BYPASS

LXP-5

LEARN

SELECT

(L and R)

Drum machine's
stereo outputs

Drum machine's individual
output for snare drum

Connection between drum machine and console

Using two LXP-5 units between your drum machine and console can make
your drum machine sound much more exciting, since it allows you to process
the all-important snare drum separately from the rest of the mix. Make sure
you remove the snare from the drum machine's main stereo mix.

1-9

LXP-5 Owner's Manual

1-10

Front Panel Operation

2. Front Panel Operation

Setting audio levels

The wide range of adjustment available with the LXP-5 INPUT and OUTPUT
LEVEL controls allow it to be used with virtually any kind of equipment found
in the studio or on the road.

To set audio levels:

1. Turn the LXP-5 INPUT and OUTPUT LEVEL controls all the way down
(fully counterclockwise).

2. Set the instrument output, preamp output, or effects send that feeds the
LXP-5 input(s) to a nominal level. With an instrument, this should be
your loudest normal playing level; with a preamp output or console,
adjust the output(s) or effects send(s) to produce the highest level
possible with the least amount of noise. If the output you are using
doesn't have a level control, don't worry about it!

3. While sending audio to the LXP-5, gradually turn up the INPUT LEVEL
control until the green SIGNAL PRESENT LED lights. Continue to
advance INPUT LEVEL until the red PEAK LED just flashes on the
loudest peaks. If it flashes continously, reduce INPUT LEVEL
slightly.This ensures the best possible signal-to-noise ratio and dy­namic range.

SIGNAL PRESENT
LED should be lit

exicon

INPUT

PEAK LED flashes on peaks; INPUT
LEVEL should be set to the level
where the PEAK LED flashes briefly
on the loudest peaks only

MIX

Note: If the PEAK LED flashes with no input present (i.e., during reverb

delay line feedback, it indicates processor overload is occurring.

2-1

LXP-5 Owner's Manual

4. If the LXP-5 inputs are connected to a console effects send, and the
outputs are connected to console channel strip inputs, set the console's
input level trim and fader to a setting typically used for line level inputs.
Then set the MIX control fully clockwise (100% effect) and gradually turn
up the LXP-5 OUTPUT LEVEL control until the right amount of audio is
present at the console.

INPUT

MIX

OUTPUT

MIX setting to use when
the LXP-5 is patched to
console effects send(s)

5. If you are using an instrument amplifier or preamplifier, start with the
LXP-5 MIX control straight up (50% effect). Gradually increase the
OUTPUT LEVEL control until the audio level heard from the amplifier is
approximately the same as when the LXP-5 is not connected.

The best setting for MIX depends on which program you are using, and
to a great extent, your personal taste; feel free to experiment.

INPUT

MIX

OUTPUT

When using an instrument
amplifier or preamplifier,
the ideal MIX setting is
generally somewhere in
this range

2-2

Front Panel Operation

LED signals

The front panel LEARN indicator is a bicolor (red/green) LED that performs
several functions:

Register Store: success or failure

The LEARN LED will blink at a 6 Hz rate for approximately 2 seconds — in
green to indicate succesful register storage, red to indicate failure to store
to a register.

MIDI Data Present

The LEARN LED will flicker (in whatever its current color) to indicate LXP­5 recognition of incoming MIDI messages. System Common messages,
non-LXP-5 SysEx messages and any message on channels other than the
selected channel will not activate the LED.

Parameter Editing Status

When not receiving MIDI, or indicating storage success, the LED will tell you
two things about the parameter editing status of the sound you are running:

1.

Has the selected parameter been changed from the stored value?

If the selected parameter matches the stored value, the LED will be
green. Otherwise it will be red.

2.

Do the knobs correctly indicate the sound that is running?

If the knobs are accurate the LED will be steady. If the knobs are
accurate (for example, after loading a program or changing the
selected parameter via MIDI), the LED will blink.

GREEN RED

LED Steady Parameter Unchanged Parameter Changed

Knobs Accurate Knobs Accurate

LED Blinks Parameter Unchanged Parameter Changed

Knobs Inaccurate Knobs Inaccurate

not

2-3

LXP-5 Owner's Manual

Y

Presets and User Programs

Selecting LXP-5 preset programs

Any one of 64 preset effects programs can be selected by turning the
FUNCTION and SELECT knobs on the front panel. To select a preset, first
turn FUNCTION to one of the four available preset types: PITCH, DELAY,
CHORUS or MULTI(-effect). Then, turn SELECT to one of the 16 presets
within the chosen type.

Use FUNCTION to select a
preset type.

PRESET USER

PITCH

DELA

CHORUS

MULTI

A

EDIT

B
C

BYPASS

1
2
3
4
5
6
7
8

Use SELECT to choose
a specific preset.

SELECT

Once a preset has been chosen, the sound can be modified with the
ADJUST knob. Program parameters can be altered in Edit mode, described
later in this chapter.

Use ADJUST to change
the sound of the preset.

LXP-5

LEARN

2-4

LXP-5 Presets

SELECT
Position

MIN

10
11
12
13
14
15

MAX

SELECT
Position

MIN

MAX

10
11
12
13
14
15

#
1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9
10
11
12
13
14
15
16

17

2

18

3

19

4

20

5

21

6

22

7

23

8

24

9

25
26
27
28
29
30
31
32

PRESET

Name

Fourth Down

Fifth Up

Octave Down

Two Octaves Down

Octave Up

Tunnel Up
Tunnel Down
Glissando Up

Glissando Down

Diminished
Suspended
Low Octave
Mid Octave

High Octave

Semitune
Fine Tune

PRESET

#

Name

Echo Delay

Stereo Delay

Slap Echo

Mid Slap

Stereo Slap

Diffuse Echo
Image Delay

Bounce Delay

Bounce Loop

Ambient Loop

Echo Loop

Filter Delay

Robot 1
Robot 2

Short Delay

Long Delay

Front Panel Operation

PITCH

ADJUST

Parameters

Pitch Interval
Pitch Interval
Pitch Interval

LFO Rate

LFO Rate
Dly 2,3-crs,Rvb Bal,Pitch Adj
Dly 2,3-crs,Rvb Bal,Pitch Adj

Dly 2,3-crs,Decay Time,Pitch Intrvl
Dly 2,3-crs,Decay Time,Pitch Intrvl

Dly 2,3-crs,Decay Time
Dly 2,3-crs,Decay Time

Pitch Interval
Pitch Interval
Pitch Interval

Pitch Adjust
Pitch Adjust

DELAY

ADJUST

Parameters

Dly 1,2-crs,Rvb Bal

Dly 1,2-crs,Rvb Bal,Fbk 1

Decay Time,Dly 2-crs,Fbk 1

Decay Time,Dly 1,2-crs,Fbk 1

Decay Time,Dly 1,2-crs
Decay Time,Dly 1,2-crs,Fbk 1
Decay Time,Dly 1,2-crs,Fbk 1

Dly 1,2-crs,Fbk 1
Dly 1,2-crs,Fbk 1

Dly 1-crs,Fbk 1
Dly 1-crs,Fbk 1

Dly 1-crs,Fbk 1
Dly 1-fin,Dly 2-crs,Fbk 1
Dly 1-fin,Dly 2-crs,Fbk 1

Dly 1-crs
Dly 1-crs

2-5

LXP-5 Owner's Manual

SELECT
Position

MIN

MAX

SELECT
Position

MIN

MAX

10
11
12
13
14
15

10
11
12
13
14
15

#

33

2

34

3

35

4

36

5

37

6

38

7

39

8

40

9

41
42
43
44
45
46
47
48

49

2

50

3

51

4

52

5

53

6

54

7

55

8

56

9

57
58
59
60
61
62
63
64

PRESET

Chorus

Ambient Image

Comb Ambience

Ambient Detune

Dry Detune

Slap Detune

Resonant Sweep

Diffuse Sweep

Slap Sweep
Echo Detune
Step Detune
Roto Motion

Roto Slap

Slow Res. Sweep

Slap Flange

Diffuse Flange

PRESET

#

Strange Room

Down Room

Ambient Slap

Slow Rise

Slow Fall

Octave Room

Bounce Fourth

Slap Room
Echo Room
Dark Closet
Small Bright

Medium Bright

Medium Dark

Large Bright

Huge Room

Name

Name

Zoom

CHORUS

ADJUST

Parameters

Pitch Adj,Dly 3-crs

Dly 3-crs,Decay Time,Rvb Time

Dly 2,3-crs,LFO Rate
Dly 2,3-crs,LFO Rate
Dly 2,3-crs,LFO Rate
Dly 1,3-crs,LFO Rate
Dly 1,3-crs,LFO Rate
Dly 1,3-crs,LFO Rate
Dly 1,3-crs,LFO Rate
Dly 1,3-crs,LFO Rate

Dly 3-crs
LFO Rate,Patch 3 (LFO to Dly 2-fin)
LFO Rate,Patch 3 (LFO to Dly 2-fin)

Rvb Bal,Patch 3 (LFO to Dly 2-fin)
Rvb Bal,Patch 3 (LFO to Dly 2-fin)

LFO Rate,Patch 3 (LFO to Dly 2-fin)

MULTI

ADJUST

Parameters

Dly 2-crs,Pitch Adj,Fbk 2

Pitch Adj,Fbk 2

Dly 2-crs,Decay Time

Dly 2-crs,Fbk 2,Hicut

Dly 2-crs,Dly 3-fin,Fbk 2,Locut

Fbk 2,Hicut,Decay Time

Fbk 2,Pitch Interval
Dly 2-crs,Fbk 1,Bass Mult,Dcy Time
Dly 2-crs,Fbk 1,Bass Mult,Dcy Time
Dly 2-crs,Fbk1,Rvb Bal,Decay Time

Treble Decay,Hicut,Decay Time

Decay Time
Decay Time

Decay Time
Dly 2-crs,Decay Time
Dly 2-crs,Decay Time

2-6

Front Panel Operation

User Memory

The LXP-5 contains 128 memory locations divided among 8 User Memory
Banks as follows.

USER 1 1-16 USER 5 65-80
USER 2 17-32 USER 6 81-96
USER 3 33-48 USER 7 97-112
USER 4 49-64 USER 8 113-128

NOTE: All User programs are volatile — storing a new program will

overwrite the previously stored program.

When shipped from the factory, THE LXP-5 contains a duplicate set of the
Preset programs at locations 1-64 (available at FUNCTION settings: USER
1-4).

Sixty-four

different

programs are provided at locations 65-128. These
programs make use of both ADJUST Knob patches and MIDI patches
(described in Chapters 3 and 4). These User presets, provided in User
Banks 5-8, are shown in the following tables.

.

2-7

LXP-5 Owner's Manual

SELECT
Position

MIN

2
3
4
5
6
7
8

9
10
11
12
13
14
15

MAX

#
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

SELECT
Position

MIN

2
3
4
5
6
7
8

9
10
11
12
13
14
15

MAX

#
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96

*Drum Machine Program — requires MIDI Clock input

USER BANK 5

PRESET

Name

Doppler Room

Knot

Octave Back

Pan Delay Verb

After Pitch

Velodelay

Shimmer
Little Pan
Pan Echo

Spread Echo

Trade Off

Veloverb

Plate Chorus

Drum Teel

Infinite Reverb

Infinite Loops

USER BANK 6

PRESET

Name

Clocked Descend*

Clocked Slap*

Clocked Rvb Flange*

Shimmer Cave

Vibrato Scale

Random Flange

Mystery Pitch

Two Octave Delay

Doppler Flange

Stadium

Vibra Verb

Wait Frash

Chromatic

Doppler Mod

Dark Chorus Verb

Bent

PATCH

Assignments

Knob: Decay Time
Knob: Decay Time

Knob: Fbk 2, Decay Time

Knob: Feedback 2

Knob: Fbk 2; MIDI Velocity: Dly 2

Knob: Fbk 2; MIDI Aftertouch: Pitch Adjust

Knob: Rvb Bal MIDI Velocity: Rvb Time

Knob: Decay Time
Knob: Decay Time
Knob: Decay Time
Knob: Decay Time

Knob: Delay 1-coarse

Knob: Reverb Balance

Knob: Feedback 2
Knob: Decay Time

Knob: Delay 1-coarse

PATCH

Assignments

Knob: Pitch Interval;MIDI Clock: Fbk 2

Knob: Fbk 2; MIDI Clock: Delay 2-coarse

Knob: Rvb Bal; MIDI Clock: Dcy, LFO Rate

Knob: Delay 2-coarse, Delay 3-coarse

Knob: LFO-Pitch Scaling

Knob: LFO-Delay 2 Scaling

Knob: Pitch Adjust

Knob: Dly 1-crs, Dly 3-crs, Rvb Bal

Knob: Feedback 1
Knob: Delay 2-coarse, Feedback 2
Knob: Decay Time, Delay 2-coarse

Knob: Decay Time

Knob: Decay ; MIDI Pitch Bend: Pitch Adjust

Knob: Delay 2-coarse; Decay Time
Knob: Delay 2-coarse; Feedback 2

Knob: Decay Time; MIDI Velocity: Dly 2-crs

2-8

SELECT
Position

MIN

2

3

4

5

6
7
8

9
10
11
12
13
14
15

MAX

Front Panel Operation

USER BANK 7

PRESET

#

Animal Orchestra*

97

Name

Knob: Decay , Dly 2-crs, Bass Multiply;

PATCH

Assignments

MIDI Last Note: Pitch Interval, Treble Decay

98

Stavid*

Knob: Decay ;

MIDI Last Note: Pitch Interval, Treble Decay

99

Note Spread*

Knob: LFO-Dly 2,3-Scaling

MIDI Last Note: Delay 2,3

Mono Drum Delay**

100

Knob: Reverb Bal,ance Delay 2-coarse;

MIDI Clock: Delay 1-coarse

Stereo Drum Delay**

101

Knob: Delay 2,3-coarse

MIDI Clock: Delay 2,3

102
103
104
105
106
107
108
109
110
111
112

Octave Vibrato

Shaky Five

Ganged Echo

Ambecho

Jaco Chorus

Double Up

Canyon Echo

Spiral Echo

Ho Drum

Body Snatchers

Glass House

Knob: Delay 1,2-coarse, Pitch Adjust

Knob: Treble Decay, Hicut, Bass Multiply

Knob: Pitch Interval

Knob: LFO Rate, Feedback 2

Knob: Delay 2,3-coarse

Knob: Decay Time

Knob: Pitch-Fine

Knob: Feedback 2

Knob: Delay 1,2-coarse

Knob: Pitch Adjust

Knob: LFO Rate

*Apply MIDI input from keyboard for best results

**Drum Machine Program — requires MIDI Clock input

2-9

LXP-5 Owner's Manual

USER BANK 8

SELECT
Position

MIN

MAX

** Set Knob from MIN to MAX to cause current audio to loop continuously.

10

11

12
13
14
15

113

2

114

3

115

4

116

5

117

6

118

7

119

8

120

9

121
122

123

124
125
126
127

128

PRESET

#

*Apply MIDI input from keyboard for best results

Name

Velo Ripple

Keycend

Key Delayverb*

Sustain Pedal Loop

Note Flange

Afterflange

Phase Flange

Phase Pedal

Huge Fourth

Upper Noted

Detune Loop

Sky

Phasecho

Feedback Sampler**

Ambient Sampler**

Sampler**

Knob: Dly 2-crs; MIDI Velocity: Fbk 2

MIDI Last Note: Pitch Adjust (Notes above

middle C ascend; notes below descend)

MIDI Last Note: Dly2-crs, Fbk 2, Dcy Time

(Last Note affects Dly/Fbk and reverb)

Knob: Delay 1-coarse; MIDI Sustain Pedal:

Input Level, Fbk 1 (Pedal On will cause

infinite loop and mute audio input to loop)

MIDI LAST Note: Delay 1-fine, Feedback 1

(Last Note controls flange)

Knob: Fbk 1; MIDI Aftertouch: Dly 1-fine

(Aftertouch controls flange)

Knob: Delay 1,2-fin; MIDI Sust Pdl: Dly 1-fin

(Pedal has phase effect on audio)

Knob: Treble Decay, Delay 2-fine

MIDI Last Note: Dly 2-crs, Fbk 2

(Last Note causes upper notes to have a

delayed effect with feedback)

Knob: Ptch Adj; MIDI Sust Ped: Input Lvl

(An almost infinite loop — input level is

Knob: Feedback 1; MIDI Last Note: Pitch

Interval; MIDI Volume: Output Level

Knob: Feedback 1: MIDI Last Note: Pitch

Interval; MIDI Volume: Output Level

PATCH

Assignments

Knob: Dly 2,3-crs;

Knob: Ptch Adj;

Knob: Reverb Balance;

Knob: Delay 1-fine

Knob: Pitch Adjust;

muted by sustain pedal)

Knob: Feedback 2
Knob: Delay 2-fine

2-10

Front Panel Operation

Creating your own sounds

The LXP-5 contains two algorithms which are used to create its many
different and interesting sounds:

Pitch/Delay which includes a digital delay line, pitch shifter,

EQ and ambience

Delay/Reverb which includes a digital delay line, EQ and

reverb.

Pitch/Delay Block Diagram

Feedback 2

Audio

Input

Feedback 1

Delay 1

Pitch

Shifter

EQ

Delay 2

Delay 3

Ambience

+

Reverb
Balance

+

Output

R

Output

L

Delay/Reverb Block Diagram

Feedback 1

Audio

Input

EQ

Delay 1

(Modulation)

Delay 2

(Pre-Delay)

Diffusor Reverb

+

+

Reverb

Balance

Output

R

Output

L

2-11

LXP-5 Owner's Manual

The available parameters for each preset are determined by the algorithm
used. All PITCH, DELAY, CHORUS and MULTI presets 49-56 use the
Pitch/Delay Algorithm. MULTI presets 57-64 use the Delay/Reverb algo­rithm.

Editing a preset

The easiest way to start creating your own sounds is by editing one of the
64 LXP-5 preset programs.

Use FUNCTION and SELECT to choose a preset you would like to change.
Put the LXP-5 into Edit mode by holding the LEARN button in while turning

FUNCTION to EDIT A or B, then releasing the LEARN button. (The
parameters available at EDIT C are discussed in

Chapter 3: MIDI Opera-

tion.)

Turn SELECT to the parameter you wish to edit. The parameter value can
now be modified with the ADJUST knob. (Move ADJUST to a new setting
to activate it.)

The following tables show all of the parameters available at FUNCTION
settings EDIT A and EDIT B. The algorithm used for each parameter is also
shown, with the available range of values, and the appropriate setting of the
SELECT knob.

2-12

Parameters available at EDIT A

DELAY

E
D

I

T
A

SELECT
Position

MIN

2
3
4
5
6
7
8

9

10

11

12-15

MAX

Name

Delay 1-Coarse

Delay 1-Fine

Feedback 1

Delay 2-Coarse

Delay 2-Fine

Feedback 2

Delay 3-Coarse

Delay 3-Fine

PITCH

Name

Pitch Base Select

Pitch Interval

Pitch Adjust

MISC

Inactive

Global Patches:

Enable/Disable

Front Panel Operation

PARAMETER

Range

Pitch/Delay

0-983 ms

0-61.5 ms

0-100%

0-307.2 ms

0-19.2 ms

0-99%

0-307.2 ms

0-19.2 ms

PARAMETER

Pitch/Delay

MIN-4=Bypass/5-8=down 2 Oct/

9-12= down 1 Oct/13-MAX=Unison

0-15 semitones up from

approx. +1 semitone (4)

MIN-6=Disable all

7-11=Re-enable single patch

12-MAX=Re-enable all

Delay/Reverb

0-630.8 ms (1)

0-61.5 ms (1)

0-100%

0-307.2ms (2)

0-19.2 ms (2)

NA
NA
NA

Range

Pitch Base (3)

Interval value

(1) Maximum Delay 1 time is Coarse + Fine (634.9 ms)
(2) Maximum Delay 2 time is Coarse + Fine (177.9 ms)
(3) Total Pitch Shift Range is from 2 Oct down -1 Oct up
(4) Inactive at ADJUST knob position 9

2-13

LXP-5 Owner's Manual

Parameters available at EDIT B

REVERB

Name

Decay Time
Treble Decay
Bass Multiply

Size

Diffusion

EQUALIZATION

Name

High Cut Filter

Low Cut Filter

LEVEL

Name

Reverb Balance

Output Balance

Output Level

Input Level

LFO Rate

MISC

ADJUST Knob

Destination

Select Algorithm

Footswitch Mode

Memory

Write-Protect

E
D

I

T
B

SELECT
Position

MIN

2
3
4
5

6
7

8

9
10
11
12

13

14

15

MAX

PARAMETER

Pitch/Delay

0.5-12 sec

320Hz-full range

x0.3-x2.5(5)
8-26 meters

0-100%

PARAMETER

Pitch/Delay and Delay/Reverb

PARAMETER

Pitch/Delay and Delay/Reverb

See Edit C: Patch Destination

MIN-4=Defeat Input;5-8=Defeat

13-MAX=Memory Increment

Range

Delay/Reverb

0.5 sec-infinity

320Hz-full range

x0.3-x2.5(5)

8-53.5 meters

0-100%

Range

320Hz-full range

full range-1350Hz

Range

100/0%-0/100%

100% left-100% right

0-100%
0-100%

0.066-5Hz

MIN-6=Delay/Reverb;

7-11=Pitch/Delay;

12-MAX=Bypass

Output;9-12=Bypass;

MIN-8=Off;9-MAX=On

2-14

(5) x1.0 at ADJUST knob position 9

Front Panel Operation

Once a parameter has been chosen, its value can be edited by turning
ADJUST. Finer control of parameter values may be accessed via MIDI (see

Chapter 3: MIDI Operation

).

Special notes regarding parameters
Delay parameters have both a coarse and a fine range. The maximum delay

available is the sum of the largest coarse and fine values.

Pitch parameters are used together in the following manner:
Pitch Base/Select is used to select the base octave. Pitch Interval and Pitch

Adjust parameter values will be added to the base octave. You can choose
a base of unison, one octave down or two octaves down. Selecting Bypass
will remove the pitch shifter from the Pitch/Delay algorithm, and eliminate its
small processing delay.

Pitch Interval provides an adjustment range of more than an octave. Its
parameter value is added to the selected base octave. For example, to
adjust pitch between one octave down and unison, set the Pitch Base/Select
parameter to one octave down, then use the Pitch Interval parameter to
adjust the pitch from one octave down to one major 3rd up.

Pitch Adjust is used to fine tune the pitch between Pitch Interval parameter
settings. The Pitch Adjust parameter will be added or subtracted from the
Pitch Interval parameter value.

Size is shown in meters. The smallest value approximates one side of a
room. Cube this value to get the approximate room volume.

2-15

LXP-5 Owner's Manual

Infinite Reverb and Infinite Loops Both algorithms allow you to create
"infinite" effects.

The Pitch/Delay algorithm's Delay 1 can be used as a loop sampler,
controlled by Feedback 1. Any Pitch/Delay preset can use the loop sampling
feature; simply choose a length for Delay 1, and set Feedback 1 to 100% to
start recirculation and lock out any further input. To precisely cue the end of
the loop, set MIX to

Dry

and listen to the input. Assigning Feedback 1 to
ADJUST is helpful, since toggling between MIN and MAX is an easy, 1-click
operation. (See

Choosing ADJUST knob destination

, later in this chapter.)

Once your loop is captured, experiment with changing Delay 1 to shorten it.
The Delay/Reverb algorithm will do infinite reverberation. For infinite reverb

to be truly infinite and stable, you must properly set the following four reverb
parameters to the settings shown:

Decay Time: Infinite

Treble Decay: Full bandwidth

Bass Multiply: X1.0

Size: Maximum

The User preset,

Infinite Reverb (User 5: Select 15)

, does this and leaves

Decay Time controlled by the front panel ADJUST knob.
When incoming audio exceeds an internally fixed threshold level, it is gated

into the reverberator. While the gate is open, the Decay Time is set one step
below infinite to prevent cumulative overloading. You will hear earlier
sounds decay away as you layer on new ones. When you finish adding
sounds, you may completely shut the gate by turning down the front panel
INPUT control, or by linking a MIDI controller to the Input parameter.

If you need to clean out the reverberator, adjust Decay Time to MIN briefly,
then return it to MAX to re-enable infinite reverberation. If there is too much
of a "loopy" quality, set Decay Time one step below MAX very briefly to
restart a 30 second randomizing process. You will notice a slight level drop
at each restart.

2-16

Front Panel Operation

Reverb Balance, Output Level and Output Balance interact. The Output
and Reverb Balance parameters are like conventional pan pots, with a 3 dB
loss in the center position. When set at 100%, Output Level contributes 6 dB
of gain to override these losses and provide the best signal-to-noise ratio.
This limits the effect of thebalance controls to their extremes. If you want
smooth dynamic pans, lower the Output Level to between 50% and 100%
to reduce the overrride action.

Editing Additional Parameters

To edit another parameter, simply turn FUNCTION and/or SELECT to a new
parameter and use ADJUST to change the parameter values.

2-17

LXP-5 Owner's Manual

Choosing ADJUST Knob Destination

After creating a sound, you can customize your effect by assigning as many
as five parameters to the ADJUST knob. This allows you to recall a program,
and modify the chosen parameters with the ADJUST knob without going
back into Edit mode.

Assignment of ADJUST must be done while in Edit mode. Turn FUNCTION
to EDIT B and SELECT to position 13. The following table shows the
parameters which can be assigned to ADJUST:

FUNCTION

EDIT B

SELECT

13

ADJUST

MIN

10
11
12
13
14
15

MAX

* Altering the Size parameter in real-time
will cause the LXP-5 to mute briefly.

Assigned Parameter

2
3
4
5
6
7
8
9

Delay 1 — Coarse
Feedback 1
Delay 2 — Coarse
Feedback 2
Delay 3 — Coarse
Pitch Interval
Decay Time
Treble Decay
Size*
High Cut Filter
Low Cut Filter
Reverb Balance
Input Level
Output Level
Output Balance
LFO Rate

If a parameter is chosen which is unavailable in the selected program,
ADJUST will have no audible effect. If a parameter is not selected for
ADJUST while in Edit mode, it will maintain its current parameter assign­ment.

2-18

Front Panel Operation

Storing a new sound

After creating a new sound, you may want to save it for future use in one of
the LXP-5‘s 128 memory locations. New entries will overwrite any program
stored at that location, so be careful not to store into a location that contains
a setup you want to save. (In addition to listing the factory-loaded contents
of the User memory (page 2-9), we have provided a chart for you to record
your own program entries at the end of this manual.)

Hold the LEARN button in while turning FUNCTION to USER 1-8 and
SELECT to the appropriate position. Release the LEARN button. The
LEARN LED will flash green to indicate a successful store.

The LXP-5 will not perform a store instruction if memory write-protect is
enabled, or if you accidentally try to save into a Preset location. If the sound
was

not

stored, the LEARN LED will flash red.

If FUNCTION is set to one of the EDIT positions, the sound will be put into
the edit buffer.

Memory Write-Protect

Memory Write-Protect is a feature that lets you prohibit the overwriting of
User programs. Memory Write-Protect is accessed by setting FUNCTION to
EDIT B and SELECT to MAX. Turning ADJUST to positions MIN through 8
will turn Memory Write-Protect OFF; positions 9 through MAX will turn Write­Protect ON. Note that, whether on or off, this function affects

all 128 User

programs.

Recalling a stored program

To recall a program, simply turn FUNCTION and SELECT to the appropriate
positions. The setup is automatically recalled and ADJUST may be used to
modify the sound.

2-19

LXP-5 Owner's Manual

Editing a User program

A User program can be modified in the same way as a Preset. First, turn
FUNCTION and SELECT to recall the desired program. Enter Edit mode by
holding the LEARN button in while turning FUNCTION to EDIT A or B.
Release the LEARN button and turn SELECT to a specific parameter.
ADJUST will now modify the parameter value.

To edit another parameter, simply turn FUNCTION and/or SELECT to the
positions corresponding to the desired parameter, and use ADJUST to
change parameter values.

If a parameter is chosen which is unavailable in the selected program,
ADJUST will have no audible effect.

Assign the parameters you find most useful to the ADJUST knob so that
these assignments will be stored with the program. After editing a User
program, the new sound can be stored at the same location (overwriting the
original program) or at a different location.

Using Bypass Mode

Setting FUNCTION to BYPASS puts the LXP-5 in Bypass mode. This mode
stops the LXP-5 from doing any signal processing by passing the wet portion
of the signal through the unit unchanged. Be sure to have the Mix control at
the 100% wet position (fully clockwise) when using Bypass.

Note: Bypass can be stored in a User memory location. Bypass can also be
activated in Algorithm Select mode or as a footswitch function (See
Footswitch Operation).

2-20

Front Panel Operation

Changing Algorithms

Another way to modify programs is by choosing the LXP-5’s other algorithm.
For example, you might like the sound of a program that uses the Delay/
Reverb algorithm, but want to add pitch shifting. To change algorithms:

1. Recall the program that you want to modify.

2. Put the LXP-5 into Edit mode. (Hold in LEARN while turning FUNCTION
to EDIT B, then release LEARN.)

3. Turn SELECT to position 14

4. Turn ADJUST to any position between MIN and 5. to select Delay/
Reverb; turn to any position between 6 and 10 for Pitch/Delay. (Turning
ADJUST to any position between 11 and MAX will select Bypass mode.)

Remember, while in Edit mode, you can modify other parameters, reassign
ADJUST, and/or save the new sound.

NOTE:Because you are limited to the parameters associated with the
new algorithm your sound may change when algorithms are switched.

2-21

LXP-5 Owner's Manual

Footswitch operation

When a footswitch (optional) is connected to the rear panel FOOTSWITCH
connector, four user programmable functions are available. These functions
are selected by turning FUNCTION to EDIT B , SELECT to 15 and ADJUST
to one of the positions shown on the following table.

FUNCTION

EDIT B

SELECT

15

ADJUST

MIN-4

5-8

9-12

13-MAX

Footswitch Function

Defeat Input

Defeat Output

Bypass

Memory Increment

A push on/push off footswitch is useful for the Defeat and Bypass functions;
a momentary type footswitch should be used for the Memory Increment
function.

Defeat Input, Defeat Output and Bypass all affect the
digital signal processor (DSP) only. The

dry

signal, as set by the front panel

wet

signal output of the
MIX control, is unaffected.
Defeat Input mutes the input to the DSP, allowing the effect the decay

naturally to silence.

Defeat Output mutes the effect output quickly.
Bypass alters the DSP program so that the effect is also dry.

If programs or parameters are changed while Defeat or Bypass is activated,
the effect will assume the new values when Defeat or Bypass is released.
If no changes are made, the wet sound will return to its original settings.

2-22

Front Panel Operation

Memory Increment

This footswitch function allows you to step sequentially through registers,
presets, Bypass mode and the edit buffer. Every time the footswitch contacts
are closed, the memory is incremented in the following order:

User Program 1
User Program 2
User Program 3

—

User Program 127
User Program 128
Preset 1
Preset 2

—

Preset 63
Preset 64
Bypass
Edit Buffer
User Program 1
User Program 2
etc...

The starting point in the sequence is determined by the program selected.

2-23

LXP-5 Owner's Manual

2-24

MIDI Operation

Y

3. MIDI Operation

All LXP-5 parameters can be accessed from the unit’s front panel. Using
MIDI, however, offers easier access and more precise control. To get you
started, this chapter starts with simple MIDI applications, and works up to
more complex ones.

Accessing Programs

Up until now, you have used the front panel knobs to save and recall
programs. You can also use MIDI to access these programs. All you need
is a device which can send MIDI Program Change messages, such as a
MIDI-equipped synthesizer, master keyboard controller, foot controller,
sequencer, or the LEXICON MRC, MIDI Remote Controller (Version 2.0 or
higher — you'll need Version 3.0 to access other LXP-5 functions).

A typical MIDI setup is shown below. Connect the MIDI output of the
controller to the MIDI input of the LXP-5, using a standard MIDI cable.

MIDI Out

MIDI In

exicon

INPUT

MIX

PRESET USER

PITCH

OUTPUT

1

DELA

CHORUS

2

MULTI

3
4

A

5

EDIT

B

6

C

7
8

BYPASS

LXP-5

SELECT

LEARN

3-1

LXP-5 Owner's Manual

Selecting a MIDI channel

Before you can use the LXP-5 with a MIDI controller, both units must be set
to the same MIDI channel. To set the LXP-5 MIDI channel:

1. Set the controller you will be using (keyboard, foot controller, etc.) to any

MIDI channel (1-16). The LXP-5 has no OMNI mode — it responds to
only one channel at a time.

2. While holding down the LXP-5 front panel LEARN button, send a

complete MIDI message from the controller. This might be a note on a
keyboard, a sustain pedal, etc. — anything

but

a Program Change
message. The Running Status messages sent by some controllers will
not cause a channel change, since these messages do not contain
channel information. If you encounter difficulties with Running Status,
send a Note message followed by a Pitch Bend message. This will
interrupt any Running Status.

3. On release of the LEARN button, the LXP-5 sets itself to the channel
you just used.

Loading a program

To load a program:

1. Connect your MIDI controller to the LXP-5, and set them to the same
MIDI channel.

2. Send a MIDI Program Change message (0-127) from the controller.

Note: Some instruments use a program numbering system that starts
with 0 instead of 1. Check your owner's manual to see if your instru­ment uses numbers 0-127 or 1-128.

3-2

MIDI Operation

Y

Storing a program

After editing a Preset program with the front panel knobs, you can store the
edited program in any of the 128 LXP-5 User memory locations:

1. Connect your MIDI controller and the LXP-5, and set them to the same
MIDI channel.

2. While holding down the LXP-5 front panel LEARN button, send a MIDI
Program Change message from your MIDI controller. On most synthe­sizers, selecting a new voice accomplishes this.

3. Release the LEARN button.The edited program is saved at the location
specified by the Program Change message. The LEARN indicator
flashes green at a fast rate for about two seconds to indicate success.
Flashing red will alert you to an error. If this happens, check to make
sure Memory Write-Protect is OFF.

Note: When the LEARN button is pressed, the LXP-5 will change MIDI
Channels to match incoming Program Change messages.

4. When you save a program, all parameter values are stored, but the
settings of the front panel audio controls (Input, Mix, and Output) are
not.

Not stored

Stored

exicon

INPUT

PRESET USER

MIX

OUTPUT

PITCH

DELA

CHORUS

MULTI

SELECT

1
2
3

A

EDIT

B
C

BYPASS

4
5
6
7
8

LXP-5

LEARN

Rear panel Footswitch status not stored

5. The LXP-5 does not perform any checking to see if a location is already
in use before storing. When you store a program, always make sure that
the location you choose doesn't contain anything you want to keep.

3-3

LXP-5 Owner's Manual

Living with controller quirks

Some synthesizers and controllers cannot send the full range of MIDI
program change messages (0-127). With them, you can't access all the
registers in the LXP-5. Others may appear to be able to send only 32, but
actually have a bank mode that

does

let you send all 128 program change

messages. If in doubt, see the manual for your controller.

Patches and Dynamic MIDI



Some extremely useful effects can be created by controlling the LXP-5’s
variable parameters remotely in real time. Almost all of the controllers found
on a MIDI keyboard or foot controller (pitch benders, mod wheels, sliders,
switches, breath controllers, foot pedals and footswitches) can be used to
adjust the LXP-5’s parameters. We refer to this real time remote control
capability as Dynamic MIDI.

To use Dynamic MIDI, you

patch

a MIDI controller to the parameter you
want to control. You may patch a separate controller to each parameter, or
patch a single controller to control up to four parameters at once. Three types
of patches are used in the LXP-5: general purpose patches, an ADJUST
knob patch and global patches.

General Purpose Patches

Four general purpose patches are available in the LXP-5. These patches
use a MIDI controller, a front panel knob or the low frequency oscillator (LFO)
as

sources
destinations
scale factor

to control one of the LXP-5 parameters, known as patch

. A controller

to calculate

threshold

offset

is used along with a positive or negative

. (Offset = [Source Value - Threshold] x Scale
Factor). The last calculated offset is stored with the patch so that, on recall,
the parameter will have this value until the controller is moved. Four general
purpose patches may be stored with any program by using the front panel
controls or MIDI SysEx.

3-4

MIDI Operation

ADJUST Knob Patch

The front panel ADJUST knob can be assigned to as many as five
parameters. This patch may be stored with a program in addition to the four
general purpose patches. The usefulness and implementation of this patch
is discussed in

Chapter 2: Front Panel Operation: Choosing ADJUST knob

destination.

Global Patches

Each of the LXP-5’s 23 parameters can be patched directly to any single
MIDI controller. When a MIDI controller is specified as a global patch source,
its value will be applied directly to the assigned parameter and will remain
in effect regardless of what program is recalled. If a parameter which is the

Destination

of a global patch is also the

Destination

of the ADJUST knob
patch, the parameter value will be set to the latest value received from
whichever controller or knob was moved last.

Creating a Dynamic MIDI Patch

There are three methods that can be used to create a patch. Some methods
do not apply to all types of patches, and some are more convenient in certain
instances. The table below shows which methods can be used for ADJUST
knob, general purpose and global patches:

Patch Type Method of Creating a Patch

Adjust Knob X X

General Purpose X X X

Global X

EDIT MODE MIDI LEARN MIDI SYSEX

Creating an ADJUST Knob Patch using Edit Mode

Refer to

Chapter 2: Front Panel Operation: Choosing ADJUST knob

destination.

3-5

LXP-5 Owner's Manual

Creating a General Purpose Patch using Edit Mode

Edit Mode lets you create a general purpose patch by using the front panel
of the LXP-5. First set up the LXP-5 by recalling a program and modifying
any parameters to obtain the desired sound. Place this setup in the edit
buffer (if it is not already there) by holding in the LEARN button while turning
FUNCTION to EDIT C, then releasing LEARN. If you are already in Edit
mode, just turn FUNCTION to EDIT C, then turn SELECT to make the
appropriate assignment:

Patch

MIN

2
3
4

Patch 2

5
6
7
8

Patch 3

9
10
11
12

Patch 4

13
14
15

MAX

Assignment

Source

Threshold

Destination

Scale

Patch 1

SELECT
Settings

Before turning SELECT, you must decide which of the four general purpose
patches (numbered 1-4) you want to set up. Each patch contains Control
Source, Threshold Level, Control Destination and Scale Factor assign­ments.

Control Source is the MIDI controller you wish to use to modify the
parameter in the Control Destination. For example, if you want to use a mod
wheel to control delay time, you would assign the mod wheel as the Control
Source and one of the Delay 1, 2 or 3 parameters as the Control Destination.

Threshold value and Scale Factor A patch calculates an Offset value from
the Control Source value, Threshold value and Scale Factor. (Offset =
[Control Source - Threshold] x Scale Factor). Therefore, the Threshold value
and Scale Factor are used to determine the sensivity and range of the
controller.

Choose a Threshold value that will let you control the part of the parameter
you want to work with. For example, if you are using a MIDI controller to
control a feedback parameter, but are only interested in a range of 70-100%

3-6

MIDI Operation

feedback, you can set the threshold value high enough so the controller will
bottom out at 70% and top out at 100%. Sixteen Threshold values from 0 to
127 are available when using Edit mode to create a patch. If MIDI SysEx data
is used to create a patch, any value from 0 to 127 may be used for Threshold
level.

Scale Factor defines the relationship between movement of the MIDI
controller and the corresponding change it causes in the parameter setting.
Choosing a low Scale Factor (under x1) will limit the range of control over the
parameter. Choosing a high Scale Factor (x2) allows a controller with a
limited range, such as a keyboard, to have access to most or all of the
parameter values. A Scale Factor of x1 should give you access to the same
parameter values as the front panel ADJUST knob if a controller with a full
range (0-127) is used. A positive Scale Factor will make the parameter value
increase with an increasing controller value; a negative Scale Factor will
make the parameter value decrease with an increasing controller value.

The last calculated Offset value is stored with the patch so that, on recall of
the program, the parameter will have this value until the controller is moved.

Once one of the four patches and its parameter is chosen by the SELECT
knob, ADJUST may be used to assign Control Source, Control Destination,
Threshold Level and Scale Factor:

3-7

LXP-5 Owner's Manual

Patch Assignments available via ADJUST

ADJUST CONTROL

Knob Position SOURCE

MIN Patch Off

2 Adjust Knob
3 LFO Rate
4 Last Note
5 Low Note
6 High Note
7 Last Velocity
8 Chnl Aftertouch

9 MIDI Clock
10 Mod Wheel
11 Breath Control
12 Foot Control
13 Data Entry
14 Volume
15 Sustain Pedal

MAX Pitch Wheel

ADJUST THRESHOLD

Knob Position LEVEL

MIN 0

28

317

425

534

642

751

859

968
10 76
11 85
12 93
13 102
14 110
15 119

MAX 127
Altering the

Size

parameter in real-time will cause the LXP-5 to mute briefly.

ADJUST CONTROL

Knob Position DESTINATION

MIN Delay 1 - Coarse

2 Feedback 1
3 Delay 2 - Coarse
4 Feedback 2
5 Delay 3 - Coarse
6 Pitch Interval
7 Decay Time
8 Treble Decay

9 Size*
10 High Cut Filter
11 Low Cut Filter
12 Reverb Balance
13 Input Level
14 Output Level
15 Output Balance

MAX LFO Rate

ADJUST SCALE

Knob Position FACTOR

MIN x(-2.0)

2 x(-1.0)

3 x(-0.8)

4 x(-0.6)

5 x(-0.4)

6 x(-0.3)

7 x(-0.2)

8 x(-0.1)

9 x 0.1
10 x 0.2
11 x 0.3
12 x 0.4
13 x 0.6
14 x 0.8
15 x 1.0

MAX x 2.0

3-8

MIDI Operation

After a patch is created, it can be saved in a register. Up to four general
purpose patches may be created and saved in each memory location.

Creating a General Purpose Patch using MIDI Learn Mode

This method of creating a patch is fairly simple but it limits you to one active
general purpose patch at a time. To create a patch:

1. First set up the LXP-5 for the desired sound by recalling a program, or
by creating a new sound. (If ADJUST is already patched to the desired
parameter, skip to Step 4.)

2. Put the LXP-5 into Edit mode by holding in the LEARN button and turning
FUNCTION to EDIT B. Release the LEARN button.

3. Turn FUNCTION and SELECT so that the desired parameter is being
edited by ADJUST.

4. Using a standard MIDI cable, connect LXP-5 MIDI IN to the MIDI OUT
port of the controller you wish to use.

5. Press and hold in the LEARN button while moving the MIDI controller
you want to patch. You don’t have to move the controller through its
entire range — just move it enough for the LXP-5 to identify what
controller you are using. For example, if you are patching a mod wheel
on a keyboard, move the mod wheel slightly.

6. Continue to hold the LEARN button in while turning ADJUST to set the
scale factor. This will set the controller’s range of effectiveness. Position
8 corresponds to zero scale, MIN corresponds to full negative scale;
MAX corresponds to full positive scale. The ADJUST knob must be
moved at least one click to record a scale factor.

3-9

LXP-5 Owner's Manual

7. Release the LEARN button. The position of the ADJUST knob at the
moment the LEARN button is released will be used to determine the
scale factor. If you moved more than one MIDI controller while holding
in the LEARN button, the last one moved will be used. Note: if the LXP­5 was in Edit mode while setting up the patch, the last parameter
assigned will be used as the Control Destination.

8. Set ADJUST to the desired base parameter value. This will be the
parameter value when the Control Source is zero. If you want access to
the full range of parameter adjustment, set ADJUST to MIN.

The MIDI controller will now be patched to the desired parameter, and you
can store this patch with the program if you like.

This patch can be cleared by holding in the LEARN button, turning the
ADJUST knob (without operating a MIDI controller), then releasing the
LEARN button.

Notes:

• If FUNCTION or SELECT is moved while the LEARN button is pressed,

the patch will not be created and the new setup will be loaded immediately.

• This general purpose patch will be saved as Patch 1, overwriting any

existing Patch 1 information; other patches will not be affected.

• A controller key press (Note On) is interpreted as Note Velocity for the

Control Source.

• A controller key release (Note Off, or Velocity zero) which is not preceded

by any aftertouch messages is interpreted as Note Number for the Control
Source.

• Aftertouch messages, followed by an optional Note Off, are interpreted as

Aftertouch for the Control Source.

• One or more MIDI clocks present while the LEARN button is pressed is

interpreted as MIDI Tempo Period as the Control Source. This is true even
if other controller messages are sent while pressing the LEARN button.
Therefore, no MIDI clocks should be present when clearing a patch.

3-10

MIDI Operation

Using programmable controllers

When you patch a MIDI controller to an LXP-5 parameter, you don't need to
worry about which controller code is sent by the particular controller. When
you move the controller during patch assignment, the LXP-5 examines the
incoming data, and automatically sets itself to match the controller you are
moving.

Some MIDI units allow you to assign any controller code you like to their
footpedals, footswitches, and other programmable switches and sliders.
From the LXP-5's point of view, it doesn't matter what controller code you
assign — it responds correctly to anything you send it. However, if there are

other devices in your system on the same MIDI channel, you should
assign a controller number that is not used on the other devices.

Creating Patches using MIDI SysEx

Patches can also be created using LXP-5 MIDI System Exclusive data. This
is perhaps the most complicated but also the most flexible way of creating
patches to control the LXP-5.

A device that is programmed to transmit LXP-5 SysEx data is needed, such
as the Lexicon MRC MIDI Remote Controller (with Rev. 3.0 or higher
software). The MRC allows you to edit up to eight parameters for each
program giving you much greater creative potential. Programs can be stored
in the MRC, making it a powerful control center for systems that include one
or more LXP-1s and/or LXP-5s. Many of these functions may also be
available in software packages for popular personal computer systems. See
your Lexicon dealer for details.

Chapter 4 provides the information necessary for programming LXP-5 MIDI
SysEx data.

3-11

LXP-5 Owner's Manual

Assigning Switches as Control Sources

In addition to continuous controllers, you can patch switches and use them
to choose between two parameter values.

The LFO Control Source

The LXP-5 contains a low frequency oscillator (LFO). Its output can be used
as a Control Source with any parameter. The output of the LFO is a sinusoid
with peak values from 0 to 127, and a rate adjustable from 0.066 Hz to 5 Hz.

Feel free to experiment with parameters to determine which you find are
useful with the LFO as their Control Source.

Using MIDI Clock as a Control Source

MIDI tempo period patches may be made by using a MIDI clock as a Control
Source for one of the LXP-5’s delay parameters. This gives you the ability
to make
parameters. Under these circumstances the following conditions will apply:

1. The delay time is not dependent upon the base parameter value. Only

2. In order to preserve an acceptable rhythmic relationship, when the

sync delay

setups where delay times are related to LXP-5 delay

the MIDI tempo period and patch information will affect it.

calculated delay value exceeds the maximum delay value permissible
by the LXP-5, it will be repeatedly cut in half until it is within the stated
delay parameter range.

3. When enabling a patch from MIDI LEARN Mode, the MIDI patch scale
is related to the effective note duration of the delay as shown in the
following table:

3-12

MIDI Operation

ADJUST NOTE SCALE

Knob Position DURATION VALUE

MIN Half Note 0

2 Dotted Quarter 1
3 Half Triplet 2
4 Quarter Note 3
5 Dotted Eighth 4
6 Quarter Triplet 5
7 Eighth Note 6
8 Dotted Sixteenth 7

9 Eighth Triplet 8
10 Sixteenth 9
11 Sixteenth Triplet 10
12 Thirty-second 11

Disabling a Global Patch

Global patches can be disabled from the front panel of the LXP-5. To do this,
simply turn FUNCTION to EDIT A, turn SELECT to position MAX, and set
ADJUST according to the following table:

ADJUST GLOBAL PATCH

Knob Position EDIT

MIN - 6 Disables all global patches

7 - 11 Re-enables a global patch after

12 - MAX Re-enables all global patches immediately

moving associated MIDI controller

This feature can only disable and re-enable all existing global patches. It
cannot be used to create new global patches.

Note: The global patch sources for parameters 0-22 are intitialized at
the factory to correspond to MIDI controllers 8-30. The LXP-5 is
shipped with global patches

disabled

.

3-13

MIDI Implementation Data

4. MIDI Implementation Data

The information contained in this chapter is intended to assist experienced
programmers in developing software for use with the LXP-5.

LXP-5 System Exclusive (SysEx) implementation can be divided into two
basic categories: Data and Event Requests, and Data Transmit and Re­ceive.

Data and Event Requests

Data Requests prompt the LXP-5 to transmit specified data. Event Requests
prompt the LXP-5 to store the data currently in the edit buffer to a specific
memory location (register), or to retrieve stored data and place it in the edit
buffer.

Data Requests

Byte Value Description

0 F0 (hex) System Exclusive
1 06 Lexicon ID
2 05 LXP-5 ID
3 0011 nnnn(bin) n = MIDI Channel 0-15
4 0eee eeee e =event code:

5 0ppp pppp p = register number 0 - 127 for e = 61

6 F7 (hex) End of SysEx message

60h = active setup data
61h = one register
62h = param data
64h = all registers

= param number for e = 62, e = 65
above; else present but ignored

4-1

LXP-5 Owner's Manual

Event Requests

Byte Value Description

0 F0 (hex) System Exclusive
1 06 Lexicon ID
2 05 LXP-5 ID
3 0110 nnnn(bin) n = MIDI Channel 0-15
4 0eee eeee e = event code:

5 0ppp pppp p = register number 0 - 127
6 F7 (hex) End of SysEx message

70h = store current edit to register
71h = recall program to edit buffer

Transmit/Receive Data

Data is identical in format whether transmitted as a response to a Data
Request or received as a Data Dump.

When the front panel ADJUST knob is assigned to a parameter and turned,
the LXP-5 will transmit a parameter change message reflecting the new
position of the knob (See
parameter number will reflect the specific parameter to which the knob is
assigned. Changing a parameter in Edit mode will also cause a parameter
change mesage to be sent. Recalling a program with the front panel
FUNCTION or ADJUST knobs will cause the appropriate program parame­ter change message to be sent.

Parameter Adjust

for the format.). The transmitted

Two LXP-5s can be slaved together by connecting a cable from the MIDI
OUT jack of the

master

to the MIDI IN jack of the

slave

. Additional LXP-5s
can be slaved to the same master by connecting a cable from the MIDI THRU
port of one unit to the MIDI IN port of the next unit.

Remember, since one jack serves as both MIDI THRU and MIDI OUT on the
LXP-5, be sure the rear panel switch is in the appropriate position.

All LXP-5s must be set to the same MIDI Channel.

4-2

Active Setup Data

Byte Value Description

0 F0 (hex) System Exclusive
1 06 Lexicon ID
2 05 LXP-5 ID
3 0000 nnnn(bin) n = MIDI Channel 0-15
4 5E (hex) data byte count (94)
5 0vvv vvvv(bin) 7-bit data

.
.

.
98 0vvv vvvv
99 0sss ssss sumcheck of data bytes

100 F7 (hex) End of SysEx message

Stored (Single Program) Data

Byte Value Description

0 F0 (hex) System Exclusive
1 06 Lexicon ID
2 05 LXP-5 ID
3 0001 nnnn(bin) n = MIDI Channel 0-15
4 0ppp pppp p = register number 0 - 127
5 39 (hex) data byte count (57)
6 0vvv vvvv 7-bit data

.

.

.
62 0vvv vvvv
63 0sss ssss sumcheck of data bytes
64 F7 (hex) End of SysEx message

MIDI Implementation Data

4-3

LXP-5 Owner's Manual

Parameter Adjust

Byte Value Description

0 F0 (hex) System Exclusive
1 06 Lexicon ID
2 05 LXP-5 ID
3 0010 nnnn(bin) n = MIDI Channel 0-15
4 0ppp pppp p = parameter number 0 - 127
5 0vvv vvvv 7-bit data
6 F7 (hex) End of SysEx message

All User Data

Byte Value Description

0 F0 (hex) System Exclusive
1 06 Lexicon ID
2 05 LXP-5 ID
3 0100 nnnn(bin) n = MIDI Channel 0-15
4 39 (hi) (hex) data byte count
5 00 (lo) (7296 = 0x1c80 = 0x3900 in 7-bit)
6 0vvv vvvv(bin) 7-bit data

7301 0vvv vvvv
7302 0sss ssss sumcheck of data bytes
7303 F7 (hex) End of SysEx message

.

Data Dump Contents

Single Program and All User Data Dump

The Single Program and All User Data dump share the same format. The
Single Program dump sends all of the stored parameters for the selected
setup; the All User Data dump sends all 128 copies of the stored programs.
Remember, all LXP-5 parameter data is 7-bits wide. The format is shown on
the following page.

4-4

MIDI Implementation Data

Data Byte # Data Param # Data Description

0 66 Program (Algorithm) ID

1 - 23 0 -22 Microcode Parameters

24 - 34 31 - 41 Name (11 characters)

35 42 Reserved
36 43 Knob Patch Destination

37 - 41 44 - 48 General Purpose Patch 1 Parameters
42 - 46 49 - 53 General Purpose Patch 2 Parameters
47 - 51 54 - 58 General Purpose Patch 3 Parameters
52 - 56 59 - 63 General Purpose Patch 4 Parameters

Active Setup Dump

The Active Setup data dump sends all the parameters for the current setup
as well as the global parameters. The format is:

Data Byte # Data Param # Data Description

0 66 Program (Algorithm) ID

1 - 23 0 - 22 Microcode Parameters
24 - 31 23 - 30 Knob Mechanism Parameters
32 - 42 31 - 41 Name (11 characters)

43 42 Reserved

44 43 Knob Patch Destination
45 - 49 44 - 48 General Purpose Patch 1 Parameters
50 - 54 49 - 53 General Purpose Patch 2 Parameters
55 - 59 54 - 58 General Purpose Patch 3 Parameters
60 - 64 59 - 63 General Purpose Patch 4 Parameters

65 64 Register Number

66 65 Preset Number

67 66 Program (Algorithm) ID

68 67 Footswitch mode

69 68 Memory Write Protect

70 69 Global Patch Enable
71 - 93 70 - 90 Global Patch Sources

4-5

LXP-5 Owner's Manual

Parameter Definitions

All LXP-5 parameters are 7-bits wide. Unipolar parameter values range from
0 to 127; bipolar parameter values (Patch Scale and Offset) use two’s
complement and range from -64 to +64. The most significant bit (MSB)
always equals zero.

All parameters are accessible by Parameter Change messages. There are
two major parameter classifications: Program parameters and System
parameters.

Program Parameters

Generally, the values of these parameters will change when each new setup
is loaded. Typically this means that the values of these parameters are
stored as part of a program. Similarly, when a new setup is retrieved all of
its stored program parameters are retrieved with it.

Most program parameters are accessible via the front panel ADJUST knob
and MIDI SysEx. A SysEx change of one of these parameters will overwrite
any existing value set by a previous knob change and vice-versa (a knob
change will overwrite any existing value set by a previous SysEx change).

The knob mechanism parameters are used to provide an extra degree of
control over the microcode parameters. For instance, six of them are used
to provide coarse/fine control over delay time from Edit mode.

System Parameters

System parameters are not associated with any particular program. These
parameters include Footswitch mode, Memory Write-Protect, global patch
sources, and Preset and User memory location numbers.

4-6

Parameter Map

Param # Data

0 - 22 Microcode Parameters

23 - 30* Knob Mechanism Parameters

31 - 41 Name (11 characters)

42 Reserved

43 Adjust Knob Patch Destination (microcode param # 0 - 22)
44 - 48 MIDI General Purpose Patch 1 (see below)
49 - 53 MIDI General Purpose Patch 2 (see below)
54 - 58 MIDI General Purpose Patch 3 (see below)
59 - 63 MIDI General Purpose Patch 4 (see below)

64* Memory location (0 - 127)
65* Preset # (0 - 65; 0-63=Preset Table, 64=Bypass,

65=Edit buffer, 127=Memory location)

66 Algorithm ID (1 - 3; 1=Delay/Reverb, 2=Pitch/Delay, 3=Bypass)

67* Footswitch Mode (0 - 127; 0 & 4-127=Defeat Input, 1=Defeat Output,

2=Bypass, 3=Memory Increment)

68* Memory Write Protect (nonzero = write protected)

69 Global Patch Enable (0=global patches disabled, 1=global patches

ignored on setup recall until Source controller is moved,
2=global patches active immediately on setup recall

70 - 92* MIDI Global Patch Sources

*Not stored during program save.

MIDI Implementation Data

General Purpose Patch Parameter Map:

Param #

Patch 1 Patch 2 Patch 3 Patch 4 Data

44 49 54 59 Patch Source

(0 - 127, see below)

45 50 55 60 Patch Threshold
46 51 56 61 Patch Destination

(microcode param # 0-22)

47 52 57 62 Patch Scale Factor

(-64 to +64, 2’s complem.)

48 53 58 63 Patch Offset

(0 - 127)

4-7

LXP-5 Owner's Manual

MIDI Patch Sources (General Purpose and Global):

Control # Function

0 - 31 Continuous controller 0 - 31

32 - 63 Switches 0 - 31

64 Last note played
65 Last note’s velocity
66 Channel aftertouch value
67 Pitch bend value
68 MIDI tempo period
69 Front panel Adjust knob
70 LFO value
71 Lowest note held
72 Highest note held

Global patch parameter numbers 70-92 correspond to microcode parame­ter numbers 0-22. Therefore, if you want to globally patch the front panel
ADJUST knob to decay time (microcode parameter 11) you would use the
global patch parameter number of 81 (70+11). Its data value would be 69,
corresponding to the ADJUST knob control number.

The MIDI patch Offset values are generated internally by the equation:

Offset = [Source-Threshold] x Scale Factor

where Source equals the value of the specified controller.

This calculated Offset value is added to the stored (base) value of the
specified destination parameter. The sum of the offset and base values is the
number used by the audio processor and the parameter transmit routines.
The programmer should be aware that the offset values are internally
updated continuously — therefore if the programmer changes the offset
value externally it will be over-written shortly thereafter. The offset param­eters are most useful when read to determine the MIDI patch contribution to
the parameter values transmitted by the LXP-5.

NOTE: When the LXP-5

receives

a parameter change, the received value

is used as the new base parameter value. However, when the LXP-5

transmits

a parameter value, this value equals the sum of the base

parameter value and any applicable MIDI patch offsets.

4-8

MIDI Implementation Data

LXP-5 Microcode Parameter Map and Definitions

Param # Global Patch Parameter Name Pitch/Delay Delay/Reverb

0 70 Delay 1 - Coarse 0 - 127 0 - 77
1 71 Delay 1 - Fine 0 - 127 0 - 127
2 72 Feedback 1 0 - 127 0 - 127
3 73 Delay 2 - Coarse 0 - 126 0 - 69
4 74 Delay 2 - Fine 0 - 127 0 - 127
5 75 Feedback 2 0 - 126 N/A
6 76 Delay 3 - Coarse 0 - 126 N/A
7 77 Delay 3 - Fine 0 - 127 N/A
8 78 Pitch Base/Select 0 - 3 N/A

9 79 Pitch Interval 0 - 36 N/A
10 80 Pitch Adjust 0 - 127 N/A
11 81 Decay Time 0 - 14 0 - 15
12 82 Treble Decay 0 - 15 0 - 15
13 83 Bass Multiply 0 - 31 0 - 31
14 84 Size 0 - 25 0 - 63
15 85 Diffusion 0 - 100 0 - 100
16 86 High Cut Filter 0 - 15 0 - 15
17 87 Low Cut Filter 0 - 31 0 - 31
18 88 Reverb Balance 0 - 127 0 - 127
19 89 Output Balance 0 - 127 0 - 127
20 90 Output Level 0 - 127 0 - 127
21 91 Input Level 0 - 127 0 - 127
22 92 LFO Rate 0 - 127 0 - 127

N/A = Not Available with this algorithm.

LXP-5 Algorithm Range

All microcode parameters in the LXP-5 are 7-bits and have a fixed MIDI
control range. Most parameters are unipolar and have a maximum range of
0 to 127 (00 to 7F hex). The bipolar parameters have a maximum range from

-64 to +63 and use two’s complement for their data word. MSB always
equals zero.

All microcode parameters are accessible via MIDI SysEx. These parame­ters can also be controlled through the front panel ADJUST knob and
Dynamic MIDI®. Note that some parameters can be adjusted to a finer
degree using MIDI SysEx or Dynamic MIDI® than when controlled with the
ADJUST knob.

4-9

LXP-5 Owner's Manual

Knob Mechanism Parameters

Param # Description

23 Delay 0 Coarse Edit Knob
24 Delay 0 Fine Edit Knob
25 Reserved
26 Delay 1 Coarse Edit Knob

27 Delay 1 Fine Edit Knob
28 Reserved
29 Delay 2 Coarse Edit Knob
30 Delay 2 Fine Edit Knob

Delay Parameters

Parameter # Range: Increment Resolution

Delay 1 - Coarse 0 0 - 1.0404 sec 0 - 630.8 msec ≈ 8.2 msec 128 steps P/D

Provides a coarse adjustment of mono delay time.

Delay 1 - Fine 1 0 - 8.1 msec 0 - 8.1 msec 64 usec 128 steps

Function: Provides a fine adjustment of mono delay time by adding to the Delay 1-Coarse
value.

Feedback 1 2 0 - 100% 0 - 100% ≈ 0.79% 128 steps

Adjusts positive feedback around the mono delay. In Pitch/Delay, 100% feedback automati­cally cuts the input, and can be used as a manual, or MIDI controlled, delay line sampler. In
Delay/Reverb, 100% feedback does not cut the input, but continues to add it in. There is also
a slight high frequency rolloff through the gliding delay mechanism of Delay/Reverb-Delay 1.

Delay 2 - Coarse 3 0 - 322.5 msec 0 - 176.6 msec 2.56 msec 127 steps P/D

Provides a coarse adjustment of two-channel delay time.In Delay/Reverb, provides a pre­delay adjustment for the reverb. In Pitch/Delay provides a reverb pre-delay and adjusts the
right channel.

Pitch/Delay Delay/Reverb

78 steps D/R

70 steps D/R

Delay 2 - Fine 4 0 - 2.5 msec 0 - 2.5 msec ≈ 20 usec 128 steps

Provides a fine adjustment of right channel delay time by adding to the Delay 2-Coarse value.

Feedback 2 5 0 - 99% NA ≈ 0.79% 127 steps

Adjusts feedback around the pitch shifter and left channel delay.

Delay 3 - Coarse 6 0 - 322.5 msec NA 2.56 msec 127 steps

Provides a coarse adjustment for left channel delay.

Delay 3 - Fine 7 0 - 2.5 msec NA ≈. 20 usec 128 steps

Provides a fine adjustment for left channel delay by adding to the Delay 3-Coarse value.

4-10

MIDI Implementation Data

Pitch Parameters ( Pitch/Delay only)

Parameter # Range Increment Resolution

Pitch Base/Select 8 0=Defeat; one octave NA

Function: Used to select the base octave from which you shift up from using Pitch Interval.
Generally speaking, you should select 1 (down 2 octs.) and use Pitch Interval to get 36
semitones when using MIDI.. Select 0 (Defeat) bypasses the pitch shifter.

Pitch Interval 9 Two octaves down one semitone 37 steps

Function: Adjusts the pitch shift from two octaves down (Pitch Base/Select=1; Pitch
Interval=0) to almost one octave up (actually maj 7th + 47 cents).Note the pitch shifter may
not cross the unison boundary perfectly.

Pitch Adjust 10 -64/+63 arbitrary units From ≈ 4 cts./step 128 steps

Function: Provides a fine adjustment of pitch for detuning. The MIDI value 0-127 is interpreted
as being centered on 64.

1=Down 2 octaves;
2=Down 1 octave;
3=Unison

thru one octave up
(36 semitones)

at +1 oct. to 25 cts./step
at -2 oct.

4-11

LXP-5 Owner's Manual

Reverb Parameters

Parameter # Range: Increment Resolution

Decay Time 11 0.5-12 seconds 0.5 sec.-infinity varies 15 steps P/D

Function: Adjusts mid reverb time. Infinite reverb is available in Delay/ Reverb algorithm only.

Treble Decay 12 320 Hz 320 Hz logarithmic 16 steps

Function: Provides an adjustment of the low pass filter within the reverb. Maximum setting
gives a flat response through the filter section.

Bass Multiply 13 x0.3 to x2.5 x0.3 to x2.5 linear 32 steps

Function: Provides control over bass reverb time.

Size 14 8 - 26 meters 8 - 53.5 meters linear 26 steps P/D

Function: Adjusts the room size. The range is for one side of a room; cube these values to
get the approximate room volume.

Diffusion 15 0 - 100% 0 - 100% 1% 101 steps

Function: Softens the attack of percussive sounds in the reverberator.

Pitch/Delay Delay/Reverb

min. is 0.1 sec. 16 steps D/R

to full range to full range

64 steps D/R

Equalization Parameters

Parameter # Range: Increment Resolution

Pitch/Delay Delay/Reverb

High Cut Filter 16 320 Hz 320 Hz logarithmic 16 steps

Function: Provides adjustment of high frequency roll-off. Maximum setting gives flat response
through the filter section.

Low Cut Filter 17 Full range Full range logarithmic 32 steps

Function: Provides adjustment of low frequency roll-off. Minimum setting gives flat response
through the filter section.

4-12

to full range to full range

to 1350 Hz to 1350 Hz

MIDI Implementation Data

Level Parameters
Note: The Reverb Balance and Output Balance parameters each act like a

conventional pan circuit with a 3 dB loss when set to a 50/50 mix. To insure
the best signal to noise ratio, the Output Level parameter includes 6 dB of
gain to offset these losses. As a result, however, the panning will be very
sharp when the Output Level is set at maximum (100%). A smoother pan can
be achieved by reducing the Output Level 3 dB (about 70%).

Parameter # Range: Increment Resolution

Reverb Balance 18 100% effects/ 100% effects/ Follows sine/ 128 steps

Function: Adjusts the mix of reverb with delay effects.

Output Balance 19 100% left 100% left Follows sine/ 128 steps

Function: Provides a pan control for the wet output.

Output Level 20 0 - 100% 0 - 100% ≈ 0.79% 128 steps

Function: Adjusts the output level of the signal processor.

Input Level 21 0 - 100% 0 - 100% ≈ 0.79% 128 steps

Function: Adjusts the input level to the signal processor.

LFO Rate 22 0.066 - 10 Hz 0.066 - 10 Hz logarithmic 128 steps

Function: Adjusts the frequency of the low frequency oscillator.

Pitch/Delay Delay/Reverb

0% reverb to 0% reverb to cosine curves

0% effects/ 0% effects/

100% reverb 100% reverb

to 100% right to 100% right cosine curves

approximation

4-13

LXP-5 Owner's Manual

MIDI Implementation Chart

Lexicon LXP-5
Effects Processing Module

Function Transmitted Recognized Remarks

Basic Default 1 1
Channel Channel 1-16 1-16 Memorized

Mode Defaullt

Messages Mode 3
Altered

Note X 0 - 127 Used as
Number True Voice controller

Velocity Note ON X O

Note OFF X X

After Keys X X
Touch Channels X O

Pitch Bender X O
Control X 0 - 127

Change
Program X 0 - 127

Change True # 0 - 127
System Exclusive O O
System :Song Pos X X

:Song Sel X X

Common :Tune X X
System :Clock X O Used as

Real Time :Commands X X controller
Aux :Local ON/OFF X X

Messages :All Notes OFF X X

:Active Sense X X
:Reset X O

Version: 1.0

Mode 1: OMNI ON, POLY Mode 2: OMNI ON, MONO
Mode 3: OMNI OFF, POLY Mode 4: OMNI OFF, MONO

4-14

O : Yes
X : No

5. Specifications

Specifications

Audio Inputs (2)

Level: -25 dBu minimum

(0 dBu=0.775 Vrms)
Impedance:
Stereo: 50 kΩ unbalanced
Mono: 25 kΩ unbalanced
Connectors: 1/4" phone

jacks (L or R may be

used for mono input)

Audio Outputs (2)

Level: +4 dBu nominal,

+18 dBu maximum
Impedance:

600 Ω unbalanced
Connectors: 1/4" phone

jacks

Mute Protection

removes unwanted tran­sients during power up/
down, or any power interrup­tion

Static Protection

Frequency Response

Wet: 20 Hz - 15 kHz,

+ 1.0, -1.5 dB
Dry: 20 Hz - 20 kHz, + 0.1 dB

Dynamic Range

85 dB, typical, 20 Hz to 20
kHz bandwidth

Total Harmonic Distortion
(THD)

Wet: < 0.02% @ 1 kHz
Dry: < 0.01% @ 1 kHz

Encoding

16-bit linear PCM

Sampling Frequency

31.25 kHz

Memory

64 presets with 128 user reg­isters available

Dynamic MIDI®

5 pin DIN connectors pro­vided for MIDI IN and MIDI
OUT (THRU) (MIDI OUT or
THRU may be selected by
rear panel switch) LEARN
button and status indicator
provided on front panel

Footswitch

1/4" phone jack for connec­tion to any on/off toggle
switch. Functions include:
Input defeat, Output defeat,
Bypass, Preset/user regis­ter, Memory Step

Signal Level Indicators

Green Signal Present LED
Red Processed Signal Over­load LED

Front Panel Controls

Input Level Adjust
Dry/Wet Mix Adjust
Output Level Adjust
Function and Select Controls

(used for selecting a
preset, user register, or
edit parameter)

Adjust Control

(used to modify a preset/
register or adjust a

specific parameter)

RFI Shielding

Complies with FCC Class A
requirements for computer
equipment

Power Requirements

9 VAC, 1.5 A from supplied

wall transformer

5.0 mm/2.5 mm connector
provided on rear panel

Dimensions

8.5" W x 1.7" H x 9.5" D

(215.9 x 43.2 x 241.3 mm)

Weight

4.5 lb (2.05 kg)

Shipping weight:

5.0 lb (2.27 kg)

Environment

Operating temperature:

32° - 95°F (0° - 35°C)

Storage temperature:

-22° - 167°F (-30° - 75°C)

Humidity:
95% maximum without con­densation

Specifications subject to
change without notice

5-1

User Memory Record of Contents

This page may be copied as needed for documenting the sounds stored in
LXP-5 User memory.

USER BANK #

1 2 3 4 5 6 7 8

SELECT

Knob Position

MIN

2
3
4
5
6
7
8

9
10
11
12
13
14
15

MAX

#

PROGRAMS

Name

Lexicon, Inc.
3 Oak Park
Bedford, MA 01730 USA
Telephone [phone]
Fax [phone]

Lexicon Part No. 070-07332 Rev 1 Printed in U.S.A.