Moog Little Phatty User`s manual

Moog Little Phatty User`s manual
Stage II Edition
Table of Contents
FOREWORD from Mike Adams ...............................
4
THE BASICS
How to use this Manual .......................................
Setup and Connections ........................................
Overview and Features ........................................
Signal Flow ....................................................................
Basic Operation .........................................................
5
5
7
9
10
THE COMPONENTS
A. Oscillator Section ...............................................
B. Filter Section .........................................................
C. Envelope Generators Section ....................
D. Modulation Section ..........................................
E. Output Section ....................................................
F. Keyboard & LH Controllers ..........................
G. Input/Output Panel ..........................................
H. Interface Panel .....................................................
11
13
15
17
18
19
20
21
THE USER INTERFACE
Preset Mode ................................................................
Master Mode ...............................................................
A. Menus ....................................................
B. Advanced Presets ...........................
C. System Exclusive .............................
D. System Utilities..................................
23
26
26
35
41
44
THE USER INTERFACE (con’t)
Performance Sets ................................................................
Activating the Arpeggiator and Latch ....................
How the LP handles MIDI .............................................
50
52
54
APPENDICES
A – Master Mode Menu Tree ......................................
B – LFO Sync Modes .....................................................
C – Arpeggiator Clock Source .................................
D – The Calibration Preset ........................................
E – Accessories .................................................................
F – Tutorial .............................................................................
G – MIDI Implementation Chart ............................
H – Service & Support Information .......................
I – Caring for the Little Phatty ...................................
J – Using the CP-251 with the Little Phatty .......
58
59
60
61
62
63
68
69
69
70
GLOSSARY ......................................................................................
73
STAGE II PRESETS .......................................................................
77
Page 3
Foreword
Congratulations on your purchase of a Moog Little Phatty Stage II. We are truly appreciative that you have
chosen to be a Moog customer. We want you to be thrilled with your purchase and we want the LP
Stage II to match your creative energy, so we have packed it with an abundance of sonic capability.
The Little Phatty Stage II is a great performance synth. If you read through this manual carefully and
MIDI controller for live performance. Look for even more templates and libraries to support the Phatty as a
controller in the months to come.
We are constantly evolving our product offerings and so I hope you will register your product on our
website and trust us with your email address so we can send you updates via our electronic newsletter.
The Little Phatty sounds great and is intuitively easy to use. We hope you are reading this manual after a
week or so of sleepless but blissful nights playing the Little Phatty. The Phatty user interface was designed to
have you up and running in a matter of minutes.
The Little Phatty is built with care and pride by our team in Asheville, N.C. If you have a chance to come to
the beautiful mountains of Western North Carolina, call and come by and see us. We would be happy to
take you on a tour of the factory.
The Look of the Stage II is something we hope you appreciate as well. Moog products are known for their
is the rubberized side panels. We agonized over this aspect of the product and I think we have come up
with just the right combination of durability and feel. I hope you appreciate this small but important aspect
of the product.
I must recognize the hard working team that created the Little Phatty. Of course, it starts with Bob and his
vision for the product. The Engineering team of Cyril Lance, Steve Dunnington, Amos Gaynes, and Mike Peio
made it happen. The design of any product is always the product of many minds but the Phatty design starts
with Axel Hartmann. If you ever have to service the Phatty you will thank mechanical engineering genius
Klaus Weber. The software for the LP was developed by the team of Chuck Carlson and Cyril Lance.
If you enjoy this manual, thank Greg Kist! And then there was a host of artists who participated in the
design process: Brian Kehew, Roger O’Donnell, Tom Brislin, Nigel Hopkins, Michael Vallarella, Keiichi Goto,
Tomo Nakamura, Mineto Yamaguchi, Mark Pulver, Steve Molitz, Eric Svalgard, Jordan Rudess, Nick Montoya.
The internal Moog marketing team: Chris Stack, Linda Lafferty, Siobhan Robinson, and Heidi Bucher all
than the production folks at Moog Music. A big thank you to all of them.
It was Bob’s dream and it is our pleasure to bring this performance synth to you. We are very excited for
you and expect this product will provide a lifetime of musical enjoyment.
Let us hear from you as we hope you enjoy it as much as we have enjoyed bringing it to you!
Mike Adams,
President, Moog Music
LP Stage II User’s Manual - The Basics
How to Use this Manual
The Setup and Connections section explains how to unpack, setup and connect the Little Phatty, and provides
a quick start to get you up and running with your new synthesizer.
The Components section offers detailed explanations of the components that create and modify sound.
First time users should check out the Tutorial
subtractive synthesis.
How the LP handles MIDI (page 54), as
well as the MIDI Implementation Chart, which appears in Appendix G.
Throughout the manual you will see icons that point out additional information:
This icon indicates an important note concerning the operation of the Little Phatty.
This icon indicates a useful performance or programming tip.
This icon indicates technical information for the advanced user or the technically curious.
Setup and Connections
In a perfect world, everyone would read the User’s Manual from cover to cover before connecting and
playing their new instrument. For those of you who don’t live in a perfect world and can’t wait to play your
new synthesizer, the following should get you set up and running quickly.
NOTE: We encourage you to read the entire manual at some point to learn more about the
instrument and gain a better understanding of what you can do with the Little Phatty.
Check the contents in the shipping carton
The Little Phatty is shipped with the following items:
1.
2.
3.
4.
The Little Phatty Synthesizer
Power cord
Users Manual
Warranty registration card
What you will need
In addition to the Little Phatty and provided accessories, you will need:
3. A properly wired AC outlet.
Page 5
LP Stage II User’s Manual - The Basics
Set up
Make sure you have an adequate place to set up your Little Phatty. You will need a sturdy keyboard stand or
table that will support a 22 lb. analog synthesizer and will not topple if you play hard. Do not expose your
top of it. Use caution when lifting the Little Phatty out of the carton, and be sure to save the carton and all
packing material in case you need to ship the Little Phatty for any reason.
Connect to Power
Connect the Little Phatty’s power receptacle (on the side panel) to a wall outlet using the supplied AC power
cord. Warning: An apparatus with CLASS I construction (such as this device) shall be connected to a MAINS
socket outlet with a protective earthing connection. The Little Phatty’s universal power supply will operate with
a power source from 100 to 250 Volts AC, 50/60Hz, 15-20W.
Power up
Turn the power on. You will see the LCD screen light up and display the message:
Little Phatty
Version X.x
After a few seconds the start-up screen will disappear and the current preset will appear in the display. The
PRESET button will be illuminated in amber, the name of the current preset location and preset name will be
displayed on the top line of the LCD screen, and the message ‘PRESET ACTIVE’ will be displayed on the lower
line of the LCD screen.
the OUTPUT ON/OFF switch is illuminated red – this means the output is turned on.
Start Playing
Use the VALUE knob to scroll through the presets. All preset locations (00 – 99) are loaded with sounds from
the factory. There are a total of 100 locations in memory for presets – all are user programmable. Note that
once a preset is called up, you can tweak the parameters to your liking using the front panel controls. Any
changes made to the current preset will cause the PRESET button to change its illumination from amber to red,
and the lower line of the LCD screen will change to ‘PANEL ACTIVE’. If you make changes to a preset and want
to return to the original sound, press PRESET. You can toggle between the stored preset and the current edited
preset by pressing the PRESET button until you change presets. If you wish to save your changes – refer to the
section on Storing Presets on page 23. Any changes made to a preset will be lost if they are not saved once you
change to a new preset.
Warranty registration
Moog’s on-line warranty registration system is the best way to activate your warranty. Access the Moog
web site at www.moogmusic.com and click on the “Product Register” tab. If you complete all the requested
information, Moog Music will send you a complimentary gift.
NOTE: The Little Phatty is recommended for an operating temperature between about 50 and
100 degrees Fahrenheit. It is safe to operate the synthesizer outside of this range (between 0
and 125 degrees F), but the LP’s voltage controlled oscillators (VCOs) may not remain in tune.
Page 6
It is recommended that a warm up period of about 15 minutes be allowed before using the LP.
The LP’s VCOs use a heated chip design that take a short time to warm up. The warm up period
may be longer if the LP has been stored outside the recommended operating temperature range.
LP Stage II User’s Manual - The Basics
Overview and Features
The Little Phatty (LP for short) is a monophonic analog synthesizer that is a descendant of the classic Minimoog
edit controls for real time adjustment of the Modulation, Oscillator, Filter and Envelope Generator parameters,
plus dedicated controls for Fine Tuning, Octave Switching, Glide, and Volume. The User Interface section has
the controls for Preset selection and management, adjustment of global parameters, and System Exclusive MIDI
own sounds.
Here’s a brief description of the front panel components.
Front Panel:
1. The LCD display and User Interface - provides controls to access presets and other software functions.
The Fine Tune control is located here, along with switches for Glide On/Off and Octave transpose.
2. The Modulation section - features a programmable modulation matrix. The Modulation section has
controls to select the modulation Source (LFO Triangle, LFO Square, LFO Sawtooth, LFO Ramp,
Filter EG or Oscillator 2) the LFO Rate, the modulation Destination (Pitch, Filter, Waveform or
Oscillator 2) and the modulation Amount parameters. The output of the Modulation section is routed
through the Modulation Wheel; when the Mod Wheel is all the way forward the Mod Source passes to
the Mod Destination at the level set by the Mod Amount.
3. The Oscillators section - features two analog oscillators, each with individual Octave, Level and Wavesetting the Glide Rate, and engaging Oscillator Sync. The oscillator outputs are summed together along
with the External Audio Input and routed to the Filter section.
adjusting Cutoff Frequency, Resonance, Keyboard Amount, Envelope Amount, and Overload. The output
Volume Envelope Generator.
5. The Envelope Generator (EG) section - contains two ADSR-style envelopes, one for the Filter and one
for the Volume. The EG section includes controls for adjusting the Attack, Decay, Sustain and Release
parameters of each envelope.
Page 7
LP Stage II User’s Manual - The Basics
Front Panel (con’t):
6. The Output section - includes controls for adjusting the Master Volume, a switch to toggle the output
on and off, and a headphone jack. The Master Volume is used for setting the levels of both the output
and the headphones. The Output On/Off switch affects the Audio Output, but not the headphones.
Side Panel:
The side panel provides connections for Power, MIDI, Control Voltage Input and Audio I/O:
1. Power Socket and Switch – provides power to the LP. Power is ON when the switch is in the up
position.
2. Audio jacks – provides monophonic audio input and audio output connections. The Audio Input jack
allows external signals to be processed by the Little Phatty.
3. Control Voltage jacks – provides Control Voltage/Expression Pedal inputs for Pitch, Filter, and Volume
parameters, and a keyboard Gate input to trigger the envelope generators with a footswitch or gate
signal. These inputs allow the LP to be controlled from expression pedals, or CV devices like the
Moogerfooger® CP-251 Control Processor.
4. MIDI – provides MIDI Input/Output to other MIDI devices through either MIDI DIN or USB
connections (software selectable).
Page 8
LP Stage II User’s Manual - The Basics
Signal Flow
To understand the operation of the Little Phatty, take a look at the diagram below. The diagram shows the
the top and bottom. Dotted lines indicate programmable modulation routings.
Referring to the above diagram, the LP’s source signals are created by two voltage-controlled oscillators
and are mixed together with the external audio input signal. This combined audio signal is passed to the
The keyboard is the main control source of the Little Phatty. Each time a key is pressed, the keyboard
produces Pitch CV and Gate signals. The Pitch signal is used to specify the pitch of the oscillators, and is
Filter and Volume Envelope Generators. The LP can also be controlled through a MIDI connection (not
shown), or through the CV and Gate trigger connections. The resulting sound depends on the various
CV connections.
Page 9
LP Stage II User’s Manual - The Basics
Basic Operation
The LP has two operating modes: Master and Preset.
• Master mode allows you to access and change global parameters and other utility options.
A complete list of the Master mode functions and parameters is shown on page 26.
• Preset mode allows you to access the presets and manipulate the sound from the front panel
controls. The Preset mode is the main operating mode for editing and playing the LP. Information
on Preset mode is found on page 23.
When the LP is powered on, it starts up in Preset mode. In
this mode, you select presets using the VALUE encoder. You
can rotate the VALUE encoder to step through the presets
in either direction. Pressing the encoder while rotating
increments the preset selection by +10 or -10 presets. In
Preset mode, you’ll see the current preset displayed on the
top line of the LCD display, and a ‘Preset Active’ message on
the bottom line. The PRESET button is illuminated in amber.
When you edit a preset, the bottom line of the display changes
to ‘Panel Active’ and the PRESET button changes from amber
to red, indicating that you are editing the preset sound. By
pressing the PRESET button you can toggle between the
preset (stored) and edited (panel) sounds. Note that once
you change preset numbers, any edits made to the previous
preset will be lost unless the edits are saved.
Editing a preset is simple. There are four analog editing controls on the front panel,
one for each of the four sound shaping sections (Modulation, Oscillators, Filter, and
Envelope Generators). Each control is surrounded by a ring of 15 LEDs that indicate
approximately the stored or edited value of the current parameter. The parameters
for each section are chosen by pushing the switch for the desired parameter in that
section. That switch then becomes illuminated in amber. Only one parameter can be
activated at a time for editing in each section.
Some parameters offer multiple selections (such as the Modulation SOURCE switch,
shown at right). Pressing that switch advances through the six possible Modulation
sources. For the On/Off type switches like GLIDE ON/OFF (above), 1-2 SYNC or
OUTPUT ON/OFF, the switch is illuminated red when the parameter is turned on,
and goes out when the parameter is turned off.
TECH NOTE: The LP’s editing controls are actually analog potentiometers. When
certain key parameters are selected, the analog control signal is switched to control
that parameter directly. This is called RAC™ (Real Analog Control). RAC gives the LP a
responsiveness that can only be achieved with analog control by providing direct access
to the analog control signal path; straight to the synthesizer circuits. In the Stage Edition,
RAC provides responsive analog control for the Osc 1 & 2, Filter Cutoff, Filter Resonance,
EG Amount, Overload and Filter EG Sustain parameters.
Page 10
LP Stage II User’s Manual - The Components
The Components
Now let’s take a look at the individual module components that make up the Little Phatty Synthesizer, starting with the Oscillator section and moving right across the front panel, explaining the features and functions
of the Filter, Envelope Generator and Output sections. Then we’ll cover the Modulation section, the Keyboard and Left-Hand controls, the Input/Output Side Panel, and the User Interface section.
A. The Oscillator Section
The Oscillators are the main sound source of the Little Phatty. The oscillators in the LP are analog Voltage
Controlled Oscillators (VCOs) that feature a temperature regulation circuit that provides them with excellent tuning stability. The LP’s VCOs can produce a total musical range of 9 octaves!
Oscillator One serves as a master oscillator to which
Oscillator 2 is tuned. The timbres of the oscillators
are adjusted by their variable waveform (Wave)
controls. There is also a switch for syncing Oscillator
2 to Oscillator 1, and a control for adjusting the glide
rate which is explained below.
The frequencies of the oscillators are controlled by a
number of sources. The main source is the keyboard.
The keyboard creates a voltage that allows the
oscillators to be played in an equal tempered scale.
The glide circuit can be switched in between the
Keyboard CV and the oscillators to slow the changes
between notes (portamento). The Keyboard CV
is mixed with the Octave switch CV, the Frequency
control (Oscillator 2), the Pitch Bend Wheel, the
and the output of the Mod Matrix when the “Pitch”
destination is selected.
Oscillator Section Controls:
Octave:
Each Oscillator has a switch labeled OCTAVE that selects the relative frequency range. To select the octave,
simply press the switch. Each press of the switch advances the setting, as indicated by the corresponding
LED. When the topmost octave is reached, the next button press cycles back to the lowest octave. The
panel markings 16’, 8’, 4’ and 2’ are octave standards based on organ stops. On the 16’ setting the highest A
on the keyboard is A440.
Oscillator Level:
Each oscillator has a switch labeled OSC LEVEL that allows the analog edit control to adjust the oscillator
level. This allows you to control the relative strength of each oscillator in the mixer.
Page 11
LP Stage II User’s Manual - The Components
Waveform:
Each oscillator has a switch labeled WAVE that allows the analog edit control to modify the waveform.
The waveform is continuously variable from triangle, to sawtooth, to square, to rectangular. The waveform
is morphed gradually from one to another as the value control is rotated. The legend around the analog
edit control for the oscillator section indicates the knob positions to obtain the triangle, sawtooth, square
and skinniest pulse waveforms. Because the waveform is voltage controlled, this parameter can be modulated. This allows the generation of some very interesting timbral
changes. By limiting the modulation between the square and thin
rectangle (pulse) waves, you can get pulse width modulation, a classic
analog synthesizer sound. Although the waveforms can be set from
the front panel individually for each oscillator, modulation is applied
to both waveform controls simultaneously. When using modulation,
it is possible to make the width of the rectangular wave so skinny
that it becomes silent.
Frequency:
Oscillator 2 has a switch labeled OSC 2 FREQ that allows the analog edit control to adjust the frequency
of Oscillator 2 relative to Oscillator 1. The pitch of Oscillator 2 can be adjusted up or down 7 semitones
pressed, creating intervals for large adjustments, or to get a chorus sound when the oscillators are just
slightly out of tune. Note that Oscillator 1 does not have a frequency control because it is designed to
serve as a reference oscillator.
Sync:
In the center of the oscillator panel is a switch labeled 1–2 SYNC. This is an ON/OFF type switch that
has no interaction with the analog edit control. Sync is ON when the 1-2 SYNC switch is lit. With sync
on, Oscillator 2 is synchronized (synced) to Oscillator 1, forcing Oscillator 2 to restart its waveform from
the beginning each time Oscillator 1 starts a new waveform cycle.
The effect is noticeable if the synced Oscillator is a higher frequency
than the Reset Oscillator. The main frequency heard is that of the
reset oscillator. As the frequency of the synced oscillator is swept, it
reinforces the harmonics of the reset oscillator. Use the Oscillator
2 Frequency control to hear this effect. Depending on how it is applied, the effect can be aggressive or warm and vocal.
Glide Rate:
In the center of the oscillator panel is a switch labeled GLIDE RATE. When this is selected, the analog edit
control is used to set the glide rate (portamento) between notes. A Glide switch on the User Interface
panel (on the far left) turns the Glide effect on or off. Glide is the time it takes to go from one note to the
next. The glide rate can vary from virtually instantaneous to a very slow glide (about 5 seconds to go from
the lowest C to the highest C on the keyboard).
Additional CV control:
The PITCH jack on the side-panel is a CV input for external control of the oscillator pitch. This input
controls the frequencies of both oscillators. A 1-volt change of this voltage will change the pitch by
NOMINALLY one octave. The jack accepts -5 to +5 volts, or an expression pedal like the EP-2.
PERFORMANCE TIP: A steady control voltage applied to the PITCH jack will offset the base
pitch of both oscillators. You can use this feature to transpose the keyboard to any desired
interval applying the appropriate steady-state CV. See Appendix J for more information on
Page 12
LP Stage II User’s Manual - The Components
B. The Filter Section
Filters are used for adjusting the timbre of an audio signal. Filters modify sound by attenuating some frequencies while allowing others to pass through unaffected. An important term to understand regarding
frequencies.
The cutoff slope is measured in decibels per octave (dB/Octave), and is
frequencies above the cutoff. By comparison, a 12dB/Octave slope is
twice as steep, and rejects frequencies above the cutoff twice as fast.
An 18dB/Octave slope is steeper still, with a corresponding frequency
rejection. Finally, a 24dB/Octave slope provides the steepest rejection
parameter adds a resonant peak at the cutoff frequency. When the
depending on how it’s used. When the resonance is turned up past
at the cutoff frequency, producing a sine wave tone.
Envelope Generator Amount (EGR AMNT) and OVERLOAD.
off will rise by an octave each time you play an octave higher on the keyboard. This setting allows you to
less of where you play on the keyboard. This can make the sound less bright as you play higher up on the
cutoff to follow the glide of the notes being played (when GLIDE is switched ON). Using the KB AMOUNT
a positive or negative way. A positive amount will cause the Filter EG to raise the cutoff frequency, while a
negative amount will cause the Filter EG to lower the cutoff.
Page 13
LP Stage II User’s Manual - The Components
Finally, the OVERLOAD parameter allows you to set the amount of signal clipping from none to soft to hard
clipping as the amount is increased. The results you get with OVERLOAD will depend on the settings of
amount. Overload is not the same distortion you’d get from a fuzz box – it must be played with to get the
best results. It can be quite subtly applied to add just a touch of ‘bite’, or aggressively applied to add a jagged
edginess to the sound.
Filter Section controls:
Cutoff:
When the CUTOFF
The cutoff frequency is adjustable from about 20 Hz to 16 Khz. As the edit control is rotated clockwise, the
Resonance:
When the RESONANCE
peak at the cutoff frequency. This emphasizes harmonics near the cutoff frequency, and can result in a ‘wahpeak increases in strength until it begins to self-oscillate – creating a sine wave with the same frequency as
the cutoff frequency.
Keyboard Control Amount (KB AMOUNT):
When the KB AMOUNT switch is selected, the analog edit control is used to adjust the amount of postfrequency. This allows a sound to retain its brightness as it is played higher on the keyboard.
Envelope Generator Amount (EGR AMNT):
When the EGR AMNT switch is selected, the analog edit control adjusts the amount of the Filter Envelope
the legend on the panel, so the amount is 0 when the edit control dial is at the 12 o’clock position. Rotat-
Overload:
When the OVERLOAD
the edit control increases the amount of clipping from the subtle warmth of soft clipping to the ‘growl’ provided by the beginnings of hard clipping. When set to 100%, Overload adds a volume boost of about +6dB.
Additional CV control:
The FILTER
accepts -5 to +5 volts, or an expression pedal like the EP-2. A voltage applied to this jack is added to the
Page 14
LP Stage II User’s Manual - The Components
TECH NOTES:
1. The LP’s Overload circuit uses asymmetrical clipping, which clips each side of the waveform
differently. Asymmetrical clipping circuits tend to produce tones with unique richness and character.
2. The Overload circuit has no effect on the sound when the analog edit control is set fully counterclockwise. Advancing the control gradually introduces the effect, starting with a gentle overdrive-like
quality that becomes increasingly aggressive and edgy as the control reaches 100%. Because the
aren’t affected much by increasing the Overload amount. Try sounds tuned to intervals other than
3. The name “Overload” came from the Overload indicator on the Minimoog, where if the output
was patched back into the audio input the Overload indicator would go on. Mixing the Audio in
would provide a “fatter” sound by increasing the level of signal coming out of the mixer and going
C. The Envelope Generators Section
Musical sounds have a start, middle and an end. For example, a plucked string sound starts with an initial
burst of energy and then slowly fades out until it is silent. In synthesis terms, this progression is called an
aspect of change in a sound – volume, timbre, or pitch. The circuits that create envelope control signals in
synthesizers are called Envelope Generators (EGs).
The Little Phatty has two identical EG circuits. When triggered, these circuits produce time-varying control voltages
having a start, middle and an end. The parameters that
specify this progression are the Attack, Decay, Sustain and
Release controls, sometimes abbreviated as ADSR.
Attack determines the character of the onset of the sound.
The Attack control adjusts the time it takes when a key is
pressed for the envelope to go from 0 to full value (the
fade-in time). The Decay control adjusts the second stage
in the evolution of a sound before it sustains or dies out.
Decay is the time that it takes for the signal to drop from
the full level to the level set by the Sustain control. The
envelope will stay at the sustain level as long as a key is held
down. When the key is released, the Release control determines how long it takes for the sound to fade out (see
ADSR Envelope Signal below).
(to control the volume). The Filter EG can also be used as a
modulation source through the Modulation Matrix.
Page 15
LP Stage II User’s Manual - The Components
Envelope Generator Section Controls:
Attack:
When the ATTACK switch is selected, the analog edit control is used to adjust the Attack time of the corresponding envelope from 1 msec to 10 seconds.
Decay:
When the DECAY switch is selected, the analog edit control is used to adjust the Decay time of the corresponding envelope from 1 msec to 10 seconds.
Sustain:
When the SUSTAIN switch is selected, the analog edit control is used to set the Sustain level of the corresponding envelope.
Release:
When the RELEASE switch is selected, the analog edit control is used to adjust the Release time (the time
for the envelope to return to zero) from 1 msec to 10 seconds.
Additional Control:
The KB GATE jack on the side panel is a trigger input that accepts a footswitch (momentary, normally
closed like the Moog FS-1) or a gate signal. Pressing the footswitch or applying a gate signal (+5V) causes
both envelopes (Volume and Filter) to trigger.
PERFORMANCE TIP: Plugging a FS-1 footswitch into the KB GATE jack allows you to trigger
or sustain a note using your foot without playing the keyboard – useful if you want to free-up
both hands to modify two panel functions at once.
Page 16
LP Stage II User’s Manual - The Components
D. The Modulation Section
Modulation is the heart of making interesting sounds with analog subtractive
synthesis. The LP’s Modulation section opens up a world of modulation possibilities that were not available on the original Minimoog. The Modulation section
allows you to select from six modulation sources, four destinations, and set the
modulation amount. The output of the Modulation section is controlled by the
Modulation Wheel.
To try out a simple modulation effect, make the following settings:
- Set the LFO RATE to 6 Hz (about 11 o’clock on the analog edit control)
- Set the SOURCE to Triangle wave
- Set the DESTINATION to Pitch
- Set the AMOUNT to 50% (about 10 o’clock on the analog edit control)
These settings will produce a vibrato effect with variable depth when the
Modulation Wheel is pushed forward.
Section Controls:
LFO Rate:
When the LFO RATE switch is selected, the analog edit control is used to adjust the frequency of the LFO.
The frequency is adjustable from 0.2 Hz to 500 Hz. Since the LFO rate extends well into the audio range,
this allows the LFO to be used for clangorous (FM-like) modulations.
Amount:
When the AMOUNT switch is selected, the analog edit control is used to adjust the maximum amount of
modulation sent to the Mod Wheel.
Source:
The SOURCE switch selects the source of the modulation. Each time the switch is pressed, it advances to
the next modulation source, as indicated by the corresponding LED. Four of the selections allow you to use
time with the LFO rate. The available Source selections are:
- LFO Sawtooth Wave
- LFO Square Wave
- LFO Triangle Wave
- LFO Ramp Wave
- Filt. Env. (Filter Envelope)/Sample & Hold
- Osc 2 (Oscillator 2)/Noise
Destination:
The DESTINATION switch selects the destination of the modulation. The modulation destination is chosen
in the same manner as the source. The modulation destination selections are:
- Pitch (affects the pitch of both oscillators)
- Wave (affects the waveform of both oscillators)
- Osc 2 (affects the pitch of Oscillator 2)
Page 17
LP Stage II User’s Manual - The Components
E. The Output Section
The Little Phatty has a single monophonic audio output. The level of the audio output
is adjusted by the Volume Control. An On/Off switch allows you to turn off the output
signal while keeping the Headphone signal active.
Section Controls:
Volume:
VOLUME is the main volume control. Rotating the control fully clockwise produces the maximum output.
Rotating the control fully counterclockwise silences the Little Phatty. The VOLUME control setting is not
stored with the preset.
Output On/Off:
The OUTPUT ON/OFF switch controls the audio that appears at the audio output jack. This switch has no
effect on the Headphone jack. This arrangement allows you to monitor and adjust the sound of the LP using
headphones, while silencing the signal at the Output jack. You can also use the OUTPUT ON/OFF switch
to turn off the output if you are using the LP as a controller and wish to control external gear without hearing the LP. The output is ON when the switch is lit..
Headphone Jack:
The HEADPHONE jack is a ¼” TRS headphone output for use with standard headphones. The Volume
control adjusts the level at this jack.
PERFORMANCE TIP: The headphone volume can be scaled using the System Utilities
‘HP Volume’ menu (see page 44) in order to match the sensitivity of your headphones
and your desired Output Volume setting.
Additional CV control:
The VOLUME jack on the side panel is a CV input for external control of the Output level. The jack accepts
a positive control voltage from 0 to 5 Volts, or an expression pedal like the Moog EP-2. A voltage of 0 volts
silences the LP, and a voltage of 5 volts corresponds to the output level set by the VOLUME control knob.
Page 18
LP Stage II User’s Manual - The Components
F. Keyboard and Left-Hand Controllers
The Little Phatty has a 37-note keyboard (3 octaves,
C to C). When combined with the OCTAVE buttons, the keyboard has a playable range of 7 octaves.
The keyboard produces velocity control voltages and
transmits MIDI Note On and Note Off messages polyphonically. To the left of the keyboard is the Left Hand
Controller Panel, which contain the Pitch Bend and Mod
Wheel controls.
Pitch Bend Wheel:
This spring-loaded control affects the pitch of both oscillators. The amount of pitch bend can be set for
each direction (UP/DOWN) independently via the Advanced Preset Menu (see page 35) and saved in each
preset.
Modulation Wheel:
This control sets the amount of modulation that is sent to the modulation destination of the Modulation
Matrix. Each preset has the Modulation Wheel programmed to introduce some additional dimension to the
sound. As you explore the presets, don’t forget to try the Modulation Wheel to hear this added effect on
the sound.
PERFORMANCE TIP: The expressive use of the Pitch Bend and Modulation Wheels is
the key to breathing musical life into your performances. For example, a small amount of
pitch bend (a few semi-tones) will allow you to easily perform guitar-like bends, while a
large amount can be useful for extreme ‘dive bomb’ pitch effects. The Mod Wheel can be
or it can control something less expected, like EG-swept oscillator sync. Although the
actual performance technique with these controls is beyond the scope of this manual, we
recommend listening to recordings of synthesizer players, guitarists and other soloists to
learn the various ways these controls can be used effectively.
Page 19
LP Stage II User’s Manual - The Components
G. Input/Output Panel
The Side Panel provides all of the input
and output connections. In addition to
Audio Input/Output jacks, there are CV
and Gate inputs, connections for MIDI,
and the power connector and power
switch.
Power Connector:
This is a standard AC power inlet, Use only a power cord designed to mate with this receptacle. The Little
Phatty’s built-in universal power supply is designed to work with power inputs of 90-250 Volts AC, 50/60 Hz.
IMPORTANT SAFETY NOTE – Do not alter the power connector in any way. Doing so can
result in the risk of shock, injury or death. Be familiar with the safety instructions printed at the
Audio IN:
The Audio In jack allows an external audio source to be mixed with the LP’s VCOs, and then routed to the
ternally. The audio input is designed to distort as the level of the external audio gets very high, adding color
to the sound.
Audio OUT:
CV Inputs:
The Pitch, Filter and Volume CV jacks supply power and will accept an expression pedal such as the
Moogerfooger EP-2 (ring = +5.5 supply to the pedal, tip = variable CV return), or a control voltage from
–5 to +5 Volts. The KB Gate Input accepts a footswitch (a momentary, normally-closed footswitch like the
Moog FS-1) or a +5 Volt Gate Signal.
MIDI Connectors (DIN and USB):
PERFORMANCE TIPS:
1. You can use the LP to process any audio signal simply by plugging into the Audio IN jack.
To hear the external audio signal without having to hold down a key on the keyboard, plug a
dummy plug (or a patch cord with nothing connected to the other end) into the KB Gate jack.
This will leave the keyboard gate open, and the volume envelope will remain at its Sustain
level until the keyboard gate closes. Due to the design of the envelope circuits, you will need to
turn the envelope Decay parameter down below 12:00 in order for the Sustain level to remain
constant. If you notice that the volume of the external signal begins to slowly fade away, check
to be sure the envelope Decay parameters are not set too high.
2. The LP’s Audio Input is not limited to processing monophonic signals - it can work well for
processing polyphonic signals, too. For example, connect the MIDI Out of the LP to the MIDI
Input of another polyphonic keyboard, then feed that audio output back into the LP through the
Audio In jack. Now you have a POLYPHONIC source that is being affected by the LP’s Filter,
Overload and EGR circuits.
Page 20
LP Stage II User’s Manual - The Components
H. Interface Panel
The Interface Panel is located on a far left of the instrument. The Interface Panel provides a status display
and controls for all of the Little Phatty’s software functions and instrument settings.
The status display is an LCD screen located in the center
of the panel above the section controls. When the LP is
Little Phatty
Version X.x
The message will stay on the screen for a few seconds,
and then the screen will display the active preset. This
preset will be the last preset in use when the Little Phatty
was powered down.
Section Controls:
Master:
Pressing the MASTER switch places you in Master mode. In this mode, the VALUE knob is used to scroll
through the Master mode menus for the Little Phatty. For a list of the Master mode menus, see page 26.
Preset:
Pressing the PRESET switch places you in Preset mode. In this mode, the VALUE knob is used to select the
preset. The PRESET switch also functions as ‘compare’ button, allowing you to toggle between stored and
edited presets. For more on Preset Mode, see page 23.
Value:
The VALUE knob is a continuous rotary encoder used to access menus and options, and select presets.
Depending on the selected parameter, the VALUE knob will adjust numeric values UP or DOWN, or toggle
amongst discrete options. The encoder has a built-in push button (called the VALUE pushswitch) that is
used to advance through the presets in Performance Sets and for stepping though Master menu submenus.
When naming a preset, the VALUE pushswitch will advance the cursor to the next letter.
Cursor:
The CURSOR switch is used to navigate around the display. In Master mode, the cursor is used to advance
through the parameters in the display, allowing you to make edits and changes. In Preset Mode, the cursor
is used to enter the Preset naming operation. Press CURSOR to get into cursor mode, and press MASTER
or PRESET to exit cursor mode.
Enter/Store:
The ENTER/STORE button is used to enter changes and store edited presets in PRESET mode and to
execute SysEx and System Utility functions in MASTER mode.
Page 21
LP Stage II User’s Manual - The Components
Fine Tune:
The FINE TUNE control is used to tune the Little Phatty’s oscillators ±3 semitones for matching an external
reference pitch.
Glide On/Off:
The GLIDE ON/OFF switch enables or disables the glissando effect between notes. Glide is ON when the
switch LED is lit. The glide rate is set using the GLIDE RATE control in the oscillator section.
Octave Up/Down:
The OCTAVE UP and OCTAVE DOWN switches affect the octave selection for both oscillators. The
range is –2, -1, 0, +1, +2. Pressing either switch once will light the switch amber and adjust the octave accordingly. Pressing the same switch a second time will adjust the octave again and change the illumination
from amber to red, indicating that a two-octave change has been selected. The Octave settings are stored
individually for each preset.
Page 22
LP Stage II User’s Manual - The User Interface
Preset Mode
Preset mode is the default mode when the LP is powered on. Preset Mode is used to access presets and
provide control for editing, naming and storing sounds.
Preset sounds are selected using the VALUE knob. As the
VALUE knob is advanced, the next preset appears in the
display and is immediately available to be auditioned (you
do not need to ‘activate’ the preset to hear it). Pressing
VALUE and turning the knob will advance by increments
of ten.
You can use the front panel controls to edit the sound at
any point. Changing any of the front panel controls will
automatically switch the lower part of the display from
‘PRESET ACTIVE’ to ‘PANEL ACTIVE’, indicating that the
PRESET light also changes
its illumination from amber to red, indicating that the
sound you hear is an edited version of the stored preset
You can toggle between the stored and edited sound by pressing the PRESET button. This acts like a
COMPARE function, allowing you to compare the sound of the original and edited presets. When using
the COMPARE function, the PRESET button will alternate colors and the LCD will display either ‘PRESET
ACTIVE’ (the original sound) or ‘PANEL ACTIVE’ (the edited sound).
NOTE: When switching between Master and Preset modes, the last used preset appears
in the display.
Storing Presets
To store a preset, press the ENTER button. This button doubles as the STORE button in Preset mode as
indicated on the front panel. Store is used to save an edited preset (Panel Active), or to change the location
of a stored preset (Preset Active).
When you press STORE, the LCD will display a message similar to the
one shown at left. The top line shows the location where the preset
will be saved, and the name of the preset that is currently stored in that
location. Use the VALUE knob to change to the desired preset location,
then press the CURSOR to move the cursor to the lower line of the
LCD. A default setting of ‘OVERWRITE: NO’ as shown protects you
from accidently overwriting a favorite preset. If you decide that you
do not want to save the preset, press ENTER and the LP will return to
Panel Mode without saving.
If you are sure you want to save the preset to the selected location,
use the VALUE knob to select ‘OVERWRITE: YES’ and press ENTER.
your preset was saved successfully.
Page 23
LP Stage II User’s Manual - The User Interface
NOTE: When the Arpeggiator is running, the ENTER/STORE button is also used to activate
the latch if the Latch parameter has been enabled. For more on the Arpeggiator and Latch
functions, see page 39.
Changing A Preset Name
Changing a preset name is a simple operation. The characters in a name are individually selected by moving
the cursor to the desired location and scrolling through the character list. To change a preset name, press
the CURSOR
VALUE knob to select the
desired character or number. Press the VALUE pushswitch to advance the cursor to the next letter. Repeat
this action until all desired characters have been changed.
Preset names consist of any combination of 13 letters, numbers and punctuation characters. In order, the
available characters are:
(space) A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5
6789abcdefghijklmnopqrstuvwxyz!#$%&()*[email protected]
Press the CURSOR
name as shown.
Use the VALUE knob to select a new character as shown. Use the
VALUE pushswitch to advance to the next character, then use the
VALUE knob to select the next character. Continue in this manner
STORE button to enter the name change into memory. Select the
desired memory location, select ‘OVERWRITE: YES’, and press STORE
to save the new name.
PERFORMANCE TIP: When a preset is stored, the ‘ON’ status of the active parameter
when the preset is recalled. By saving your presets with this in mind, you can have the
four analog edit controls automatically set to the desired parameters when the preset is
recalled. This is a great feature if you need to tweak the sound in live performance!
Page 24
LP Stage II User’s Manual - The User Interface
Tap Tempo
Tap Tempo is an easy and intuitive way to adjust the speed of the LFO Rate or the Arpeggiator Clock. The
Tap Tempo function is always available for any preset in PRESET Mode. Tap Tempo can be used to adjust the
LFO Rate when the Arpeggiator is not running,, or adjust the Arpeggiator Clock when the Arpeggiator is
running.
To enter Tap Tempo Mode, press and hold the LFO RATE
that Tap Tempo Mode is active.
When Tap Tempo is active and the Arpeggiator is not running, tapping the LFO RATE button will set the
internal LFO Rate and override the LFO Sync Mode (see ‘LFO SYNC’ on page 27). Both the LFO LED
and the LFO RATE
and the bottom line of the LCD will display a
status message indicating that the Tap Tempo function is active:
NOTE: Once activated, Tap Tempo will remain activate even if you change presets. The Tap
Tempo rate from the previous preset will not be transferred to the new preset, however.
When Tap Tempo is active and the Arpeggiator is running, tapping the LFO RATE button will set the rate
of the Arpeggiator Clock. Both the LFO LED and the LFO RATE
and the LCD will display the new rate in BPM:
If the MODULATION control knob is adjusted while in Tap Tempo Mode, it will override the Tap Tempo and
adjust the LFO Rate or Arpeggiator Clock to the new value.
To exit Tap Tempo Mode, press and hold the LFO RATE
the previous mode (either free running or MIDI clock).
NOTE: If the Arpeggiator is set to ‘MIDI CLOCK’ when Tap Tempo is active, Tap Tempo will
adjust the internal LFO Rate and not the Arpeggiator Clock.
Page 25
LP Stage II User’s Manual - The User Interface
Master Mode
Master Mode is used to access the global settings and Advanced Preset settings for the Little Phatty, and the
routines for sending and receiving data.
To enter master mode, press the MASTER button. By
When switching between the Master and Preset modes,
the last used master menu entry appears.
When the master menu is active, the VALUE knob is used
to scroll through menu entries. To change a particular
menu entry, you must hit the CURSOR button to enable
the parameter for editing. The selected parameter will be
underlined, indicating that this parameter value can now
be changed. The VALUE knob is now used to change the
parameter value(s). The chosen parameter is automatically
changed as the display is updated (i.e. if you scroll through
values and settle on something new, you don’t have to do
anything to activate that new entry). If a menu contains
more than one parameter for editing, repeatedly pressing CURSOR will step through the available parameters.
Press the MASTER button at any time to return to Master
Mode.
A. Master Mode Menus
Descriptions of each individual Master Mode menu appears below. A chart displaying the full Master Mode
Menu ‘tree’ appears in Appendix A.
PERFORMANCE SETS:
Performance Sets are collections of preset sounds, pre-arranged for
convenient access. There are four banks of Performance Sets containing 8 presets each (32 presets total). You select a bank (1-4) and then
set up a sequence of 8 presets in each bank. This allows you to easily
switch between these assigned presets in the order they are set up.
Once you have your performance bank set up, you can step sequentially through the bank by pressing the VALUE switch, or use the
CURSOR button to highlight the bank or preset, then use the VALUE
knob to make the change.
In the example menu shown here, the 3rd preset in Performance
Set 1 is Preset 24 - LEAD. For more on Performance Sets and how to
Page 26
LP Stage II User’s Manual - The User Interface
ADVANCED PRESET:
Advanced Presets is a set of menus that allows you to access
additional parameters for the selected preset. These parameters are
stored individually for each preset. There are eleven Advanced Preset
menus:
- Filter Poles
- EGR Release
- Gate Trigger Options
- Filter Sensitivity
- Additional LFO Modulation Sources (SRC5 & SRC6)
- Pitch Bend
- Secondary Modulation destinations.
- Keyboard Priority
- Pot Mapping
- Arpeggiator
For more information, see the Advanced Preset Menus section on
page 35.
LFO SYNC:
The LFO Sync menu allows you to globally set the LFO to Internal (freerunning) or MIDI Clock. When set to ‘INTERNAL’, the MODULATION
control is used to set the rate of the LFO. When set to ‘MIDI CLOCK’,
the LFO rate is controlled by an external MIDI Clock and the selected
Clock Divider settings (see below). To change the LFO Sync Mode, use
the CURSOR
VALUE
knob to select the mode.
Modes: INTERNAL, MIDI CLOCK; the default is INTERNAL
NOTE: For additional information, see Appendix B – LFO Sync Modes
When the LFO Sync Mode is set to ‘MIDI CLOCK’, you can program
the clock divider to one of 15 different values. The divisor is based on
24 clocks per quarter note (the MIDI standard). The table on the following page shows how the number of MIDI clocks relates to musical
time values. When the LFO Sync Mode is ‘CLOCK’, the MODULATION control can be used to select the clock divider (the 15 divider
values correspond to the 15 LEDs in the MODULATION control lightpipe). The default clock divider value is 1/4 (= 24 clocks/quarter note).
PERFORMANCE TIP: You can adjust the clock divider value in real
time - this is a great way to add rhythmic variations to a performance.
LFO while adjusting the divider for some cool rhythmic fun!
Page 27
LP Stage II User’s Manual - The User Interface
CLOCKS/QUARTER
NOTE
TIME VALUE
LP DISPLAY
3
1/32 note
1/32
4
Dotted 1/32 note
1/32 DOT
6
1/16 note
1/16
9
Dotted 1/16 note
1/16 DOT
12
1/8 note
1/8
18
Dotted 1/8 note
1/8 DOT
24
Quarter note
1/4
36
Dotted quarter note
1/4 DOT
48
Half note
1/2
72
Dotted half note
1/2 DOT
96
Whole note
WH
128
Whole note + quarter note
WH + 1/4
144
Whole note + half note
WH + 1/2
168
Whole note + dotted half note
WH + 1/2 DOT
192
Whole note + whole note
WH + WH
MIDI Clock Divider values
ANALOGUE MODE:
Analogue mode controls the way the analog edit controls work. In
SNAP mode, the parameter will ‘snap’ instantaneously to the current
potentiometer setting. In PASS-THRU mode, the parameter value
stays constant until the potentiometer passes through the current value. In TRACK mode, the parameter value moves in the same direction
as the knob is rotated (left or right) until the value and knob position
are identical. To change modes, use the CURSOR button to highlight
the parameter, then use the VALUE knob to set the new parameter
value.
Values: PASS-THRU, SNAP, TRACK; the default value is Track
KEYBOARD PRIORITY:
The Keyboard Priority menu allows you to select from 3 different types
of keyboard priority. Keyboard priority for a monophonic instrument
determines what happens when more than one key is pressed. A setting of LOW NOTE causes the lowest key pressed to sound, a setting
of HIGH NOTE causes the highest key pressed to sound, and a setting
of LAST NOTE causes the most recent key pressed to sound. To
change the keyboard priority, use the CURSOR button to highlight the
parameter, then use the VALUE knob to set the new parameter value.
Values: LOW NOTE, HIGH NOTE, LAST NOTE;
the default is LAST NOTE
Page 28
LP Stage II User’s Manual - The User Interface
PROGRAM CHANGE SEND/RECEIVE:
This menu item is used to enable or disable the transmission (SND)
and reception (RCV) of MIDI program changes. To change the status
of either parameter use the CURSOR button to highlight the parameter, then use the VALUE knob to set the new parameter value.
Values: ON, OFF;
the default values are ON for both SND and RCV
TUNING
The Tune parameter is used to enable or disable the FINE TUNE panel
control (ON/OFF), or enable the AutoTune function (AUTO).
When the Tune parameter is set to ON, the FINE TUNE panel control
is used to tune the LP. In this mode, you can use the VALUE knob get
very precise tuning control by moving the display cursor over to the
numerical value and rotating the VALUE knob (the adjustment value is
from -1024 to +1023, representing roughly ± a third).
When the Tune parameter is set to OFF, the position of the FINE
TUNE panel control is stored and the control itself is disabled. This
feature prevents accidental bumping of the FINE TUNE panel control
during performance.
When the Tune parameter is set to AUTO, the AutoTune function is
engaged and the display changes as shown. AutoTune works to keep
Tuning CV.
When AutoTune is enabled, the display shows the actual value of the
last note played (displayed as the MIDI note number, shown here as
‘60’), and the current tuning value (displayed in cents, shown here as
‘.00’). In this mode, the LP will continually tune to this value. To adjust
the note that you are tuning to, cursor over to the Note value in
the display and use the VALUE knob for precise adjustments. Hitting
another note on the keyboard will set that note as the new target for
tuning. You can exit out this menu by hitting the MASTER or PRESET
buttons, and the LP will remain in the AutoTune mode, maintaining the
current tuning.
Values: ON, OFF, AUTO; the default is ON
Page 29
LP Stage II User’s Manual - The User Interface
NOTE: While you are in this menu with AutoTune enabled, the output of the LP will be muted (the
Output ON/OFF button status will not change, however). The reason for muting the output is that
AutoTune uses a special Calibration Preset tone which isn’t very musical. The LP’s output will remain
muted as long as you stay in this menu, or until you disable AutoTune. If AutoTune is active when you
leave the menu, it will remain active but will automatically unmute the output and disengage when you
start playing. AutoTune has a special ‘timeout’ feature that waits 15 seconds after you stop playing
before engaging the AutoTune function in the background. If the AutoTune menu is displayed during this
time, you will see it change:
AUTO …
AUTO 60.12
The LP will continue to autotune while you are playing until you disable it in the menu, or until you
switch off the power.
For more on the Calibration Preset and a list of its parameter values, see Appendix D.
PRECISION MODE:
Precision Mode is a feature that allows precision editing of LP parameters using the VALUE knob. Each LP parameter stored has a value
from zero to 4095. In Precision Mode that value is displayed on the
second line on the screen.
To edit a parameter in Precision Mode, press the corresponding
parameter button on the front panel (for example, Filter Cutoff). You
will see that parameter name along with its value on the display. To
edit with the VALUE knob, press the CURSOR button and rotate the
VALUE knob. Each click of the VALUE knob results in a change of one
value. Pressing the VALUE knob while simultaneously rotating it will
change the value in increments of 10, allowing for faster editing.
Changes made to a preset in Precision Mode are part of the current Panel Active edited sound. To make these changes permanent,
the preset must be stored (see “Preset Mode” on page 23). To exit
Precision Mode, press the MASTER or PANEL button. The last edited
parameter in Precision Mode will be remembered until it is changed in
Precision Mode or the unit is powered down.
Values: The default parameter is Volume Attack
Page 30
LP Stage II User’s Manual - The User Interface
MIDI CHANNELS IN AND OUT:
This menu is used to select the LP’s MIDI In and Out channels. The LP
can only send and receive on one channel at a time, but each channel
can be set independently. To change the MIDI channel, use the
CURSOR button to highlight the desired parameter, then use the
VALUE knob to select the new parameter value.
Values: OFF, 1 – 16;
the default values are 1 for both MIDI In and MIDI Out
MIDI SETUP:
The MIDI SETUP menu is used to select the LP’s MIDI options. There
are seven pages of MIDI menus, beginning with the ‘ALL NOTES OFF’
menu. This menu allows you to issue an ‘All Notes Off ’ message to the
MIDI output, shutting off all active notes on the LP and/or any attached
MIDI tone modules or keyboards. This command is the equivalent of a
MIDI panic button to silence stuck notes. To issue the command, simply
press the ENTER button (you do not have to enable this menu with the
CURSOR button).
The second page of the MIDI Setup menu allows you to turn control of
the LP’s synth engine ON or OFF locally, i.e. the keyboard, wheels, and
any front panel controls that can also receive MIDI. It does not disable
any MIDI transmitting or receiving. A setting of ‘OFF’ will prevent double
triggering in the event you are using a MIDI sequencer with both the
MIDI IN and MIDI OUT connected, and the sequencer is echoing MIDI
data back to the LP. To change the Local Control setting, use the
CURSOR button to highlight the control value, then use the VALUE
knob to change the setting.
Values: ON, OFF; the default is ON
The third page of the MIDI Setup menu allows you to select the MIDI
input connection. Since the LP Stage II offers both MIDI DIN and USB
connections, several input options are possible. To specify the MIDI input
connection, use the CURSOR button to highlight the input selection,
then use the VALUE knob to select the desired input.
Values: NONE, DIN, USB, DIN/USB; the default is DIN/USB
TECH NOTE: ‘DIN’ is an abbreviation for ‘Deutsches Institut für Normung’ (German Institute
for Standardization). ‘DIN connectors’ commonly refer to a family of circular connectors that
were standardized by the DIN for commercial electronic use. When the MIDI standard was
the ‘MIDI DIN’ connector.
Page 31
LP Stage II User’s Manual - The User Interface
MIDI SETUP (con’t)
The fourth page of the MIDI Setup menu allows you to select the MIDI
output connection. To specify the MIDI output connection, use the
CURSOR button to highlight the output selection, then use the VALUE
knob to select the new output.
Values: NONE, DIN, USB, DIN/USB; the default is DIN/USB
of the MIDI Merge function for the USB input. When MIDI Merge is
ON, the LP will echo all MIDI data received at the USB MIDI Input port
to the selected MIDI Output port, merged with any MIDI data generated by the LP. This allows you to pass MIDI data thru the LP, even though
the LP has no dedicated MIDI Thru connector. To change the selected
MIDI output port, use the CURSOR to highlight the output parameter,
then use the VALUE knob to select the desired output.
Values: NONE, DIN OUT, USB OUT, DIN/USB OUT;
the default is NONE.
The sixth page of the MIDI Setup menu allows you to select the routing of the MIDI Merge function for the DIN input. When MIDI Merge
is ON, the LP will echo all MIDI data received at the MIDI DIN Input
port to the selected MIDI Output port, merged with any MIDI data
generated by the LP. To change the selected MIDI output port, use the
CURSOR to highlight the output parameter, then use the VALUE knob
to select the desired output.
Values: NONE, DIN OUT, USB OUT, DIN/USB OUT;
the default is NONE.
NOTE: When using MIDI Merge, take precautions to insure that you do not create a MIDI feedback
loop (the output is passed back into the input and then merged with the output again), or you may
experience unwanted side effects like a locked-up LP. Should this happen, cycling the power should
Page 32
LP Stage II User’s Manual - The User Interface
MIDI SETUP (con’t)
The seventh page of the MIDI Setup menu allows you to set up multiple Moog synths as a polyphonic synth stack. The settings are ‘POLY:
this particular LP is assigned to play, the second number sets the total
number of available voices. For example, if you had an LP and a Voyager
RME, you would set the LP to ‘POLY: 1 of 2’; on the Voyager RME you
would go to ‘MIDI Key Order’ on the Master menu and set the RME to
ware installed; the current Voyager OS is version 3.3). Connect the MIDI
OUT from the LP to the MIDI IN on the Voyager. You should now be
on the keyboard and the Voyager RME sounding the second note. If all
available voices are in use, additional notes will not sound until enough
keys are released to free a voice. MIDI Continuous Control numbers
(MIDI CC’s) are consistent between the Voyager and Little Phatty, so any
so on, should affect all voices simultaneously.
If you have two Little Phatty synths, you would connect MIDI OUT from
MERGE on the second LP and connect its MIDI OUT to the MIDI IN on
trolled only by the MIDI data that is shared between the two synths.
If you have more than two Moog synths, connect them so that MIDI
tion should always be the one on which you are playing the keys. If the
OUT from it to the MIDI IN on the second synth; do not use the MIDI
higher).
NOTE: When the Arpeggiator is activated, it overrides
any POLY mode settings.
Page 33
LP Stage II User’s Manual - The User Interface
SYSEX MENU:
SysEx (System Exclusive) is a set of commands to transmit and receive
tion on SysEx commands, see the SysEx Menus section on page 41.
SYSTEM UTILITIES:
System Utilities is a set of commands used to perform a system reboot,
restore factory default values or perform various system calibrations on
the instrument. For more information, see the System Utilities Menus
section on page 44.
PERFORMANCE TIP: You can quickly change a Master Menu parameter during performance
then return to Preset Mode. When you are ready to make the change, press MASTER. The
desired menu item will be displayed, allowing you to quickly make adjustments.
Page 34
LP Stage II User’s Manual - The User Interface
B. Advanced Preset menus
The Advanced Preset menu provides a set of additional programming parameters for each preset. These
parameters are stored individually for each preset.
FILTER POLES:
This menu allows you choose the number of Filter Poles for the
gentle 6db/octave (1 pole) to a steep 24db/octave (4 poles). To select
the number of Filter Poles, use the CURSOR button to highlight the
parameter, then use the VALUE knob to set the new parameter value.
Values: 1, 2, 3, 4
EGR RELEASE:
This menu allows you to turn the EGR Release parameter ON and
OFF. EGR Release is used to enable or disable the Release segment
CURSOR button to highlight the parameter, then use the VALUE knob
to set the new parameter value.
Values: ON, OFF
GATE:
The Gate menu allows you to select how the envelopes are triggered
when more than one key is pressed on the keyboard. A setting of
LEG ON (Legato ON) means that the envelopes aren’t retriggered
until the key is fully released. A setting of LEG OFF (Legato OFF) will
retrigger the envelope on a new note from the current EGR level. A
setting of EGR RESET will force the envelope generators to start from
0 volts each time a note is triggered. To change the Gate mode, use
the CURSOR button to highlight the parameter, then use the VALUE
knob to set the new parameter value.
Values: LEG ON, LEG OFF, EGR RESET
FILTER SENSITIVITY (FILT. SENS):
The Filter Sensitivity menu allows you to select how the keyboard
struck harder, mimicking the properties of acoustic instruments.
frequency as the keys are struck harder. To change the parameter, use
the CURSOR button to highlight the parameter, then use the VALUE
knob to set the new parameter value.
Values: -8... 0... +8
Page 35
LP Stage II User’s Manual - The User Interface
MOD SOURCE 5 (MOD SRC 5):
This menu allows you to select one of two modulation options that
will be used when the FILT ENV source is selected on the front panel
(Modulation Source 5). FILT (Filter Envelope) is the default source, but
S-H (Sample & Hold) can be chosen as an alternate. To change the
parameter, use the CURSOR button to highlight the parameter, then
use the VALUE knob to set the new parameter value.
Values: FILT, S-H
MOD SOURCE 6 (MOD SRC 6):
This menu allows you to select one of two modulation options that
will be used when the OSC2 source is selected on the front panel
(Modulation Source 6). OSC2 (Oscillator 2) is the default source, but
Noise can be chosen as an alternate. To change the parameter, use the
CURSOR button to highlight the parameter, then use the VALUE knob
to set the new parameter value.
Values: OSC2, NOISE
MODULATION DESTINATION 2 (MOD DEST2):
This menu allows you to program a secondary destination for
modulation. The four destination options here are the same as
those offered on the front panel (the primary modulation). The
Modulation AMOUNT
secondary modulation amounts - there is no separate amount control
for the secondary modulation. To program a secondary modulation
destination, use the CURSOR button to highlight the destination
parameter, then use the VALUE knob to set the new parameter value.
Values: OFF, PITCH, FILTER, WAVE, OSC2
PITCH BEND (PB):
The Pitch Bend menu allows you to individually set the positive and
semitones. To change either parameter, use the CURSOR button to
highlight the parameter, then use the VALUE knob to select the new
parameter value.
Values: UP: 0, +2, +3, +4, +5, +7, +12
DN: 0, -2, -3, -4, -5, -7, -12
Page 36
LP Stage II User’s Manual - The User Interface
KEYBOARD PRIORITY (KB PRIOR):
The Keyboard Priority menu allows you to select the keyboard priority for individual presets. The default is GLOB (Global), which inherits
the global keyboard priority setting from the Master KEYBD PRIORITY
menu, but this can be changed to low note, high note or last note priority. To make a change, use the CURSOR to move to the priority paramVALUE knob to select the desired value.
Values: GLOB, LOW, HIGH, LAST; the default value is GLOB
POT MAPPING:
The Pot Mapping menu allows you to make arbitrary MIDI Continuous
Controller (CC) assignments to each of the four Analog Edit knobs
on the front panel (MOD, OSC, FILT, and EGR). Additionally, the four
knobs can be individually programmed to provide internal, external,
or combined MIDI control. Among its many possibilities, Pot Mapping
allows you to ‘reprogram’ the four panel knobs to control any of the
LP functions. For example, you could program Pot Mapping to give you
control of Filter Cutoff, Resonance, Overload and EG Amount, all at the
same time.
To set up Pot Mapping, press the CURSOR button and use the VALUE
knob to select the desired control knob (MOD, OSC, FILT, or EGR).
Press the CURSOR
the desired MIDI CC parameter.
NOTE: When Pot Mapping is enabled for a given panel section, the mapping assignment overrides
the normal CC assignments in that section. For example, in the Modulation section, the LFO Rate
is transmitted as CC#03, and the Amount transmitted as CC #06. If you set up Pot Mapping in the
Modulation section to send MIDI CC#21, the Modulation knob will exclusively transmit CC#21 when
Pot Mapping is enabled, and not CC#03 or #06. When Pot Mapping is disabled, the Modulation knob
will revert to sending the normal MIDI CC’s #03 and #06.
Page 37
LP Stage II User’s Manual - The User Interface
POT MAPPING (con’t):
Press the CURSOR button once more to select whether the assignment applies to internal only (INT), external only (EXT) or BOTH.
Pressing the CURSOR button again will return you back to the
beginning.
Once programmed, Pot Mapping is enabled in a section by selecting
the active parameter in that section. For example, suppose Pot
MODULATION knob to send MIDI
CC#10. To activate Pot Mapping in the Modulation section, press the
button that is currently active (i.e. lit) in that section. The button will
turn off (no button in the Modulation group will be illuminated); the
MODULATION knob will now send MIDI CC#10 information when
it is adjusted. To disable Pot Mapping in the Modulation section, simply
press one of the buttons in that section, and the MODULATION
knob will return to its normal function.
Values: MIDI CC assignments: OFF, 0-127
Destination: INT, EXT, BOTH
PERFORMANCE TIP: Here’s a Pot Mapping example: suppose you have an external audio device
that you want to control independently of the LP. You could program Pot Mapping to have the
Modulation control transmit MIDI CC #XX, but only have it programmed for external control (EXT).
With this setup, you press the active control in the Mod section (either the LFO Rate or Amount
switch) to engage Pot Mapping without affecting your LP’s sound or state. Now when you adjust the
MOD control, it sends MIDI CC #XX out to your external MIDI device, but has no effect on the LP’s
sound engine.
Page 38
LP Stage II User’s Manual - The User Interface
ARPEGGIATOR:
The Arpeggiator is exciting addition to the LP’s operating system, providing a wide range of musical sequencing possibilities. The Arpeggiator is
programmed for each preset individually through the seven menu pages
described here. The Arpeggiator is activated from the front panel (see
Activating the Arpeggiator and Latch, page 52). To enter the Arpeggiator
Menu, use the CURSOR to highlight ‘ARPEGGIATOR’ and press ENTER.
When you enter the Arpeggiator menu, the top line of the display
changes to indicate that you are now programming the Arpeggiator.
arpeggiator function for the chosen preset. When ‘ON’ is selected,
the arpeggiator is ‘armed’ and ready to be switched on from the front
panel. When ‘OFF’ is chosen, the arpeggiator will remain off, preventing you from switching it on accidently. To change the Enable status, use
the CURSOR
VALUE knob to select the desired setting.
The second page of the Arpeggiator menu allows you to select the
Arpeggiator Clock Source. There are three possible clock sources:
INT - The Arpeggiator Clock
LFO - The LP’s Low Frequency Oscillator
MIDI - An externally applied MIDI Clock
When ‘INT’ is selected as the clock source, the Arpeggiator runs from its
own internal clock. In this mode, when the Arpeggiator is switched ON
the Arpeggiator Clock rate is adjusted either with the MODULATION
knob, or by using the Tap Tempo function, or by issuing a MIDI CC#90
command. Note that you must select the LFO RATE switch when the
Arpeggiator is ON in order to use the MODULATION knob to change
the Arpeggiator Clock rate (the MODULATION control does not adjust the speed of the LFO when the Arpeggiator is running).
When ‘LFO’ is selected as the clock source, the Arpeggiator is driven
from the Low Frequency Oscillator. In this mode, the MODULATION
knob adjusts the speed of the Arpeggiator Clock and the LFO Rate
together, making it possible to get synchronous, arpeggiated LFO effects.
When ‘MIDI’ is selected as the clock source, the Arpeggiator is driven
from an externally applied MIDI Clock. In this mode, the MIDI Clock
synchronizes the Arpeggiator to the sending device (a software
DAW, for example). Note that if no MIDI Clock signal is present, the
Arpeggiator will not run and no notes will be heard.
NOTE: For additional details, see Appendix C – Arpeggiator Clock Source.
Page 39
LP Stage II User’s Manual - The User Interface
ARPEGGIATOR (Con’t):
The third page of the Arpeggiator menu allows you to specify the
Arpeggiator Clock Divider. The available Arpeggiator Clock Divider
values are the same as the LFO Clock Divider (see table on page 28).
To make a selection, use the CURSOR button to move to the divider
VALUE knob to select the desired divisor
value. The default clock divisor value is ‘1/4’.
The fourth page of the Arpeggiator menu allows you to select the range
lected, which allows you to create sequences that are beyond the range
of the LP’s 3-octave keyboard. To make a selection, use the CURSOR
VALUE knob
to select the desired octave value.
Values: -3, -2, -1, 0, 1, 2, 3; the default value is 1.
(pattern) in which notes are sequenced. The choices are:
UP - Notes are arpeggiated from lowest to highest
DN - Notes are arpeggiated from highest to lowest
ORDER - Notes are arpeggiated in the order played
To make a selection, use the CURSOR button to move to the pattern
VALUE knob to select the desired pattern.
The default value is ‘UP’.
The sixth page of the Arpeggiator menu allows you to select the
Arpeggiator mode. The choices are:
LOOP - When the arpeggiator reaches the end, it loops
back to the starting point.
BACK-FORTH - When the Arpeggiator reaches the end it
reverses direction and returns to the starting point.
ONCE - The arpeggiator makes a single pass and then stops.
To make a selection, use the CURSOR button to move to the mode
VALUE knob to select the desired mode
value. The default value is ‘LOOP’.
Page 40
LP Stage II User’s Manual - The User Interface
ARPEGGIATOR (Con’t):
The seventh page of the Arpeggiator menu allows you to enable or disable the Latch function. The Latch allows the Arpeggiator to keep repeating the arpeggio state when you remove your hands from the keyboard.
The Latch menu arms the Latch function the same way the Arpeggiator
ON/OFF menu arms the Arpeggiator. When the Latch parameter is
set to ‘ON’, the Latch can be activated from the front panel (to activate
the latch, you must be in PRESET Mode when the Arpeggiator is running - see Activating the Arpeggiator and Latch for more). When ‘OFF’ is
selected, the Latch is always off and cannot be activated accidently. To
enable/disable the latch function, use the CURSOR button to move to
VALUE knob to change the latch
status. The default value is ‘OFF’.
C. SYSEX (System Exclusive) Menus
dumps. To enable SysEx menus, press the CURSOR button. This will highlight the menu options shown
on the second line of the display. Once highlighted, use the VALUE knob to scroll through the menus. To
activate a command, press the ENTER button.
SEND CURRENT PRESET:
This option allows you to send the current preset (system exclusive
data format) for archiving a preset in the LP’s memory. This requires
another LP or computer with a MIDI interface and a program that can
accept a SysEx dump. You must enable the device that is to receive the
SysEx data. Once the remote device is enabled, press ENTER to start
the data transfer.
When ENTER
CUR PRESET’ message shown. When the operation is complete, the
display will return to the SYSEX menu.
Page 41
LP Stage II User’s Manual - The User Interface
C. SYSEX Menus (Con’t)
SEND ALL PRESETS:
This option allows you to send the system exclusive data for archiving
the complete bank of presets in the LP’s memory. To complete this
command, enable the device that is to receive the SysEx data. Once
the remote SysEx device is enabled, press ENTER to start the data
transfer.
When ENTER
ALL PRESETS’ message shown and the ENTER button will stay lit until
display will return to the SYSEX menu.
BULK DUMP:
This option allows you to save the entire state of the LP (including all
global data, performance set data and preset data) for later recovery.
To execute a bulk dump, enable the device that is to receive the SysEx
data. Once your remote SysEx device is enabled, press ENTER to start
the data transfer.
When ENTER
BULK DATA’ message shown and the ENTER button will stay lit until
play will return to the SYSEX menu.
Page 42
LP Stage II User’s Manual - The User Interface
Receiving SysEx Data
recognized and received automatically when a SysEx data transfer is initiated. The Little Phatty’s LCD screen
will display the status of SysEx data transfers as follows:
SINGLE PRESETS:
whenever a single preset is transmitted via SysEx. The preset will
automatically be stored at the current preset location. For example, if
the current preset location is 31 when the SysEx is received, the new
preset data will be written into location 31.
ALL PRESETS:
The LP will display a ‘RECEIVING ALL PRESETS’ message when a bank
of presets is transmitted. The transmitted bank will replace the current
bank.
BULK DUMP:
The LP will display a ‘RECEIVING BULK DUMP’ message when a bulk
dump is transmitted.
FIRMWARE UPDATES:
update is transmitted. Additional status messages may appear on the
ware update is completed, the LP will automatically reset.
Page 43
LP Stage II User’s Manual - The User Interface
D. System Utilities Menus
System Utilities provide a set of useful system commands, including
commands to calibrate, restore factory defaults and set global system
options. There are seven pages of System Utilities menus, beginning
with the Version number display.
The second page of the System Utilities menu displays the Headphone
Volume (HP VOL) menu , which allows you to scale the headphone
volume in relation to the output volume. This can be adjusted from
0 (off) to 255 (max). To change the scale value, use the CURSOR to
VALUE knob to select
the desired value.
The third page of the System Utilities menu allows you to enable or
disable menu wrapping. When menu wrapping is enabled (‘ON’),
menus will wrap back to the beginning when you reach the end. When
disabled (‘OFF’), menus will not wrap. To enable/disable menu wrapping, use the CURSOR
use the VALUE knob to select the desired value. The default is ‘ON’.
The fourth page of the System Utilities menu allows you to perform a
Master Reboot of the LP, which is similar to turning the power OFF and
ON. To perform this action, press ENTER.
are unsure, select NO and press ENTER to return to the System Utilities menu without any action. If you are sure, use the
VALUE knob to select YES and press ENTER. This will reboot
the LP.
global default values, performance sets and all factory presets. When
you are ready to execute this operation, press ENTER to activate.
Note: You should back up any presets you
wish to save prior to performing this action.
are unsure, select NO and press ENTER to return to the System Utilities menu without any action. If you are sure, use the
VALUE knob to change from NO to YES and press ENTER.
This will restore the factory default global values, performance
presets and factory presets.
Page 44
LP Stage II User’s Manual - The User Interface
display a ‘RESTORING FACTORY DEFAULTS’ message. When
complete, the screen will return to the System Utilities menu.
The sixth page of the System Utilities menu allows you to calibrate the
Little Phatty. In the past, calibration of analog synthesizers had to be
performed manually by experienced service personnel. The LP’s builtin calibration utilities now allow you to perform many of these procedures yourself, without the expense and hassle of shipping the LP back
to the factory for calibration. The LP’s calibration utilities allow you to
perform individual calibrations on the pitch wheel, oscillators and note
range. For example, the Note Calibration operation individually tunes
each note exactly for each oscillator and octave setting. This tuning
information is stored in the LP’s EEPROM and referenced when playing a note to guarantee that the LP’s oscillators will be in tune. Other
calibrations ensure that variable controls such as the pitch wheel and
oscillator 2 detuning function predictably and precisely.
To access the calibration options, press ENTER, then use the VALUE
knob to select the desired calibration.
Notes: All calibration procedures should be thoroughly reviewed before proceeding. Observe the following
precautions and recommendations before attempting any calibration operation.
1. The LP must be at a stable and constant temperature during calibration. You should allow the LP to
warm up 30 minutes before beginning any calibrations.
2. The Note Calibration procedure takes about two hours to cover the full MIDI note range. If you are
3. The LP is calibrated at the factory. The Note Calibration operation is not necessary unless the LP
goes out of tune. The Note Calibration overwrites the current calibration lookup table (LUT). Performing a
Factory Restore operation will not cause the LUT to revert to the factory calibration.
4. You can exit out of a calibration at any time by pressing the MASTER button. For the Note Calibration
operation, only those notes that have already been calibrated will be saved. The remaining notes will
revert to their previous calibration values. Interrupting the Note Calibration operation in this manner may
result in inaccurate tuning.
5. Note Calibration is not meant for overall tuning drifts, such as if the LP is 10 cents sharp. Small tuning
drifts are best taken care of using the AutoTune function.
6. If you perform a Note Calibration, it is highly recommended that you also perform the Oscillator 2
Frequency Calibration to ensure accurate frequency tracking with the new LUT.
Page 45
LP Stage II User’s Manual - The User Interface
CALIBRATION (con’t)
PITCH WHEEL:
This calibration option allows you to select Pitch Wheel calibration.
This is a manual calibration that should only be performed if you are
experiencing trouble with the pitch wheel and believe it needs recalibration. Press ENTER to access the Pitch Wheel calibration menu.
You will be asked if you wish to proceed. Use the VALUE knob to select YES or NO. If you are uncertain, or if you change your mind about
performing this calibration, select NO and press ENTER. You will be
returned to the System Utilities Calibration menu. Otherwise, select
YES and press ENTER.
When Pitch Wheel calibration is enabled, the display appears as shown.
The values displayed indicate the minimum, middle and maximum positions of the pitch wheel.
When you see this display, perform the following operations:
1.) Move the Pitch Wheel to the minimum position (all the way towards you). The left-hand number will go to some minimum value.
2.) Move the Pitch Wheel to the maximum position (all the way
towards the panel). The right-hand number will go to some maximum
value.
3.) Release the Pitch Wheel and let it snap back to the middle position.
The middle number should settle around 2048 (±20).
This completes the Pitch Wheel calibration. To exit the calibration, press
ENTER to return to the System Utilities Calibration menu or press
MASTER to exit the calibration and return to the highest level of the
System Utilities menu.
Note: If this calibration is done incorrectly, the Pitch Wheel will not operate normally and may
not function at all. If this should this happen, try recalibrating the Pitch Wheel again using the
procedure described.
Page 46
LP Stage II User’s Manual - The User Interface
CALIBRATION (con’t)
NOTE CALIBRATION:
This calibration option allows you to select Note calibration. This
calibrates individual notes exactly for each oscillator and octave setting.
Press ENTER to access the Note calibration menu.
The Note calibration menu will be displayed, allowing you to set the
calibration range. The default note range is MIDI notes 12 - 116. For
every one of these notes, the pitches are calibrated at each of the
octave settings, from 16’ to 2’. To change the range, use the CURSOR
VALUE knob to
select the MIDI note value. Then press ENTER.
Note: A full Note calibration using the default range (12 - 116) can take about two hours
to complete. By specifying a narrower range of notes (for example, just the range of the LP
keyboard without octave transpose [48-84], or with octave transpose [24-108]), you can
shorten the calibration time.
You will be asked if you wish to proceed. Use the VALUE knob to select YES or NO. If you are uncertain or if you change your mind about
performing this calibration, select NO and press ENTER. You will be
returned to the System Utilities Calibration menu. Otherwise, select
YES and press ENTER.
Calibration will begin, and the display will appear as shown. The values
displayed are the MIDI note number being calibrated, the calibration
value (this is the value stored in the LP’s EEPROM), and the actual
measured note in MIDI Note Number Cents (in the example shown
here, ‘32.01’ indicates MIDI note 32 and the actual measured note is
then oscillator 2.
Note: You can exit out of Note calibration at any time by pressing the MASTER button.
Only those notes that have been calibrated up to that point will be saved. The remaining
notes will revert to their previous calibration values. Interrupting the Note Calibration
operation in this manner may result in inaccurate tuning.
When Note calibration is complete, the message ‘SUCCESSFUL’ will
appear on the display and the new calibration values will be stored in
the LP’s EEPROM. To exit the calibration, press ENTER to return to
the System Utilities Calibration menu or press MASTER to exit the
calibration and return to the highest level of the System Utilities menu.
Page 47
LP Stage II User’s Manual - The User Interface
CALIBRATION (con’t)
PITCH WHEEL AMOUNT:
This option allows you to select Pitch Wheel Amount calibration. This
calibrates the Pitch Wheel Amount parameter to precise semitone
values (± 2, 3, 4, 5, 7 and 12). Press ENTER to access the Pitch Wheel
Amount calibration menu.
You will be asked if you wish to proceed. Use the VALUE knob to
select YES or NO, then press ENTER. If you are uncertain, or if you
change your mind about performing this calibration, select NO and
press ENTER. You will be returned to the System Utilities Calibration
menu. Otherwise, select YES and press ENTER.
number displayed is the amount of pitch bend being calibrated (in this
example, +2 means ‘plus two semitones’). The second number is the
calibration value (this is the value stored in the LP’s EEPROM), and the
third number is the actual measured note, which is displayed in MIDI
Note Number Cents (in this example, ‘62.36’ indicates MIDI note 62,
and the actual measured note is 36 cents sharp). All Pitch Amount
calibrations are based on MIDI note 60, so for a calibration value of +2,
the target note value is 62.00. As the calibration operation proceeds,
Pitch Wheel amounts (+2, +3, +4. +5, +7, +12) and then all of the
negative Pitch Wheel amounts (-2, -3, -4, -5, -7, -12).
When the calibration is complete, the message ‘SUCCESSFUL’ will appear on the display and the new calibration values will be stored in the
LP’s EEPROM. To exit the calibration, press ENTER to return to the
System Utilities Calibration menu or press MASTER to exit the calibration and return to the highest level of the System Utilities menu.
Page 48
LP Stage II User’s Manual - The User Interface
CALIBRATION (con’t)
OSCILLATOR 2 FREQUENCY (OSC2 FREQ):
This option allows you to select OSC2 Frequency Calibration. This
calibrates the OSC2 FREQ control so that turning the editing dial all
Press ENTER to access the OSC2 Frequency Calibration menu.
You will be asked if you wish to proceed. Use the VALUE knob to select YES or NO. If you are uncertain, or if you change your mind about
performing this calibration, select NO and press ENTER. You will be
returned to the System Utilities Calibration menu. Otherwise, select
YES and press ENTER.
number that appears on the display is the base note for calibration
(MIDI note 60). The second number is the calibration value (this is
the value stored in the LP’s EEPROM), and the third number is the
actual measured note, which is displayed in MIDI Note Number Cents
(in the example shown here, ‘64.37’ indicates MIDI note 64, and the
actual measured value is 37 cents sharp). When calibration starts, the
measured note value hone in on 60.00. Then the calibration value will
change as the note climbs to 67.00, at which point it has calibrated the
maximum value (+7 semitones), and then the note descends to 53.00
at which point it has calibrated the minimum value (-7 semitones).
When the calibration is complete, the message ‘SUCCESSFUL’ will appear on the display and the new calibration values will be stored in the
LP’s EEPROM. To exit the calibration, press ENTER to return to the
System Utilities Calibration menu or press MASTER to exit the calibration and return to the highest level of the System Utilities menu.
Page 49
LP Stage II User’s Manual - The User Interface
Performance Sets
Performance Sets is a feature that allows you to customize the order of LP presets for a live performance
situation or to enhance your productivity in a studio environment.
Performance Sets are based on the idea that during a performance, you may need to switch between a sequence of sounds that doesn’t necessarily match up to the preset locations. Performance Sets gives you the
ability to set up sequences of sounds that you can step through easily and quickly during a performance.
The LP has four Performance Sets located in the Master menu. Each Performance Set contains eight preset
entries, so set 1 has an array of 8 presets; set 2 has an array of 8 presets, etc. Viewed as a table, the
Performance Sets might look like this:
SET
PRESET 1
PRESET 2
PRESET 3
PRESET 4
PRESET 5
PRESET 6
PRESET 7
PRESET 8
1
24
58
02
89
34
38
23
01
2
02
03
51
05
06
92
07
08
3
99
38
56
57
12
13
48
76
4
34
35
36
37
44
45
46
47
can call up a set and step though the sequence using the VALUE switch.
The example on the right shows the preset stored
– SUPERCHUNK). To step through this sequence,
press the VALUE switch. Each press will advance to
the next preset in the sequence. After the eighth preset is reached, the next press of the VALUE switch will
To return to Preset mode, press the PRESET button.
The preset displayed will be the last preset selected in
the Performance Set.
Pressing the MASTER button again will return to the
last used master menu entry.
Note: The factory default setup for Performance Sets is shown below. When you
perform a Factory Restore operation, all Performance Sets will default to these values:
Page 50
SET
PRESET 1
PRESET 2
PRESET 3
PRESET 4
PRESET 5
PRESET 6
PRESET 7
PRESET 8
1
00
01
02
03
04
05
06
07
2
08
09
10
11
12
13
14
15
3
16
17
18
19
20
21
22
23
4
24
25
26
27
28
29
30
31
LP Stage II User’s Manual - The User Interface
Editing Performance Sets
To edit a Performance Set, use the CURSOR key to select the Performance SET number (1-4), ENTRY
location (1-8) and PRESET (00-99). For example, to select the SET number, press the CURSOR button
once to highlight the SET number for editing. Press the CURSOR button a second time to advance to the
ENTRY location, and a third time to advance to the PRESET.
In the example show here, the SET number is ready to be changed.
The number is changed by rotating the VALUE knob. For this example,
we’ll change the SET number to 1, and then advance to the next parameter by pressing the CURSOR button.
The ENTRY value is now ready to be changed. Using the VALUE
knob, we’ll change the ENTRY value to 5, and then hit the CURSOR
button again to advance to the PRESET.
Now we’re ready to change the PRESET entry. Again using the VALUE
knob, we’ll change the PRESET to 23.
If no further editing is required, we can now exit this mode by hitting
the MASTER button.
This places us back where we started in Performance Sets. There are no parameters highlighted, and the
MASTER button is lit. Preset 23 - LUCKY MAN is the active preset, ready for playing.
To return to Preset mode, press the PRESET button. The preset displayed will be the last preset selected in
the Performance Set.
Pressing the MASTER button again will return you to the last used master menu entry.
Page 51
LP Stage II User’s Manual - The User Interface
Activating the Arpeggiator and Latch
Turning the Arpeggiator ON/OFF
When a preset has the Arpeggiator function enabled, you turn the Arpeggiator ON and OFF by pressing the
VALUE encoder switch (you must be in PRESET mode to engage the Arpeggiator).
When the Arpeggiator is ON, an ‘A’ will appear on the bottom line of the display:
With the Arpeggiator ON, any note or group of notes you play will be sequenced according to the settings
in the Arpeggiator menu. To turn the Arpeggiator OFF, simply press the VALUE encoder. The Arpeggiator
will switch OFF and the display will revert to the previous view:
NOTE: In previous versions of the Little Phatty OS, the VALUE encoder switch was used to advance presets.
In OS 2.0, the VALUE encoder switch operation has been changed to activate the Arpeggiator exclusively.
The VALUE encoder switch is still used in MASTER Mode to step through the presets in Performance Sets.
Note, however, that if a preset selected from the MASTER Mode Performance Sets has the Arpeggiator function enabled and you wish to turn the Arpeggiator ON for that preset, you will need to return to PRESET Mode
Turning the Arpeggiator Latch ON/OFF
When the Latch function is enabled in the Arpeggiator menu and the Arpeggiator is switched ON, pressing the ENTER/STORE button turns the Latch ON. When the Latch is ON, an ‘L’ will replace the ‘A’ on the
bottom line of the display:
As long as the Latch is ON, the Arpeggiator will keep looping in its current state. Any new note or group of
notes will initiate a new note sequence based on the Arpeggiator Menu settings. If any notes are played and
held while the Latch is ON, playing additional notes adds to the current list of notes to be arpeggiated. If all
To turn the Latch OFF, simply press the ENTER/STORE button. The Latch will switch OFF and the ‘L’ in the
display will be replaced by an ‘A’, indicating that the Arpeggiator is still active:
NOTES:
1. When the Latch is ON, you can turn the Arpeggiator ON/OFF using the VALUE encoder switch.
2. If the Arpeggiator Mode is ‘One-shot’ when the Latch is ON, the Arpeggiator will make one pass
of the note sequence and then stop.
3. When the Arpeggiator is switched OFF, the ENTER/STORE button will revert to the default action
of initiating a Preset Save sequence.
Page 52
LP Stage II User’s Manual - The User Interface
Arpeggiator Examples
The Arpeggiator takes the currently played note or group of notes and forms an arpeggio based on the
Arpeggiator Menu settings. Here are some simple examples of the Arpeggiator function:
Example 1. Pattern = UP, Octaves = 1, Mode = LOOP
PLAY & HOLD NOTE
THE ARPEGGIATOR PLAYS
C3
C3, C4, C3, C4...
Add E3
C3, E3, C4, E4...
Add G2
G2, C3, E3, G3, C4, E4, G2...
Add A3
G2, C3, E3, A3, G3, C4, E4, A4, G2...
Release E3
G2, C3, A3, G3, C4, A4. G2...
Example 2. Pattern = DN, Octaves = 1, Mode = LOOP
PLAY & HOLD NOTE
THE ARPEGGIATOR PLAYS
C3
C4, C3, C4, C3...
Add E3
E3, C3, E4, C4, E3...
Add G2
E3, C3, G2, E4, C4, G3, E3...
Add A3
A3, E3, C3, G2, A4, E4, C4, G3, A3...
Release E3
A3, C3, G2, A4, C4, G3, A3...
Example 3. Pattern = UP, Octaves = 1, Mode = BACK-FORTH
PLAY & HOLD NOTE
THE ARPEGGIATOR PLAYS
C3
C3, C4, C3, C4...
Add E3
C3, E3, C4, E4, C4, E3, C3, E3...
Add G2
G2, C3, E3, G3, C4, E4, C4, G3, E3, C3, G2, C3...
Add A3
G2, C3, E3, G3, A3, G3, C4, E4, A4, E4, C4, G3...
Release E3
G2, C3, G3, A3, G3, C4, A4, C4, G3...
Example 4. Pattern = ORDERED, Octaves = 1, Mode = LOOP
PLAY & HOLD NOTE
THE ARPEGGIATOR PLAYS
C3
C3, C4, C3, C4...
Add E3
C3, E3, C4, E4...
Add G2
C3, E3, G2, C4, E4, G3, C3...
Add A3
C3, E3, G2, A3, C4, E4, G3, A4, C3...
Release E3
C3, G2, A3, C4, G3, A4, C3...
Page 53
LP Stage II User’s Manual - The User Interface
How the LP handles MIDI
When you adjust any one of the LP’s four analog edit controls, MIDI Continuous Controller (CC) messages are generated and transmitted on the MIDI Out connector. The information contained in these
MIDI messages varies according to the parameter assignment for that analog edit control. For example,
when the front panel LFO RATE switch is selected, the analog edit control in the Modulation Section
generates MIDI CC data corresponding to the LFO Rate parameter (CC#03). MIDI CC messages are
also generated when you adjust Preset parameter values in the menus; this gives you total control of all
LP sound parameters via MIDI.
The tables on the following pages list all MIDI CC messages and values for the Little Phatty.
NOTES:
1. The LP sends and receives 7-bit MIDI CC messages for all parameters except
for the Modulation Wheel and Filter Cutoff, which send and receive high-resolution,
for these parameters, whether your are using the LP as a MIDI controller, or
controlling the LP via MIDI from a sequencer or DAW. For these two parameters,
the MSB indicates the ‘regular’ CC number, and the LSB indicates the highthe LP, use the MSB channel number by itself for these two parameters.
2. The Arpeggiator Clock Rate is set by two MIDI CC messages that correspond
BPM by three; the integer result (the whole number) will be the CC#04 value. Then
and multiplying the result by 10. This will be the CC#36 value.
For example, to set the Arpeggiator Clock Rate to 121.7 BPM:
Determine the MIDI CC coarse value by dividing the target BPM by 3:
121.7/3 = 40.566
The CC#04 value is ‘40’ (=120 BPM)
from the target value:
121.7 - 120 = 1.7
Then multiply the result by 10:
1.7 * 10 = 17
The CC#36 value is ‘17’
For CC#04 = 40 and CC#36 = 17, the LP’s display will show ‘121.7 BPM’.
(Note that in order to display the internal BPM on the LP’s LCD, the
Arpeggiator must be ON and the Arpeggiator Clock must be set to ‘INT’.)
3. The MIDI CC assignments shown for each section are over-ridden when Pot
Mapping is enabled in that section. For more on programming and enabling
Pot Mapping, see page 37.
Page 54
LP Stage II User’s Manual - The User Interface
Filter
Oscillators
Modulation
Interface Panel
SECTION
CONTROL/PARAMETER
FUNCTION
CC
VALUE/RANGE
MASTER
Master mode switch
-
-
PRESET
Preset mode switch
-
-
CURSOR
Navigation control
-
-
ENTER
Data entry control
-
-
GLIDE ON/OFF
Turns Glide ON/OFF
65
0 (OFF), 64 (ON)
OCTAVE UP
Octave increment switch
-
-
OCTAVE DOWN
Octave decrement switch
-
-
LFO RATE
Adjusts the LFO frequency
3
0 – 127
AMOUNT
Adjusts the modulation amount
6
0 – 127
SOURCE
Selects the modulation source
68
0 (TRI), 16 (SQUARE)
32 (SAW), 48 (RAMP)
64 (FILT ENV), 80 (OSC2)
DESTINATION
Selects the modulation destination
69
0 (PITCH), 16 (FILT)
32 (WAVE), 48 (OSC2)
LFO SYNC SOURCE
Selects the LFO synchronization source
102
0 (INT), 64 (MIDI CLK)
LFO SYNC CLOCK DIV
Sets the LFO synchronization clock divider
103
See table for list of values
MOD SOURCE 5
Selects the Mod 5 Source
104
0 (FILT), 64 (S&H)
MOD SOURCE 6
Selects the Mod 6 Source
105
0 (OSC2), 64 (NOISE)
MOD DEST 2
Selects the second mod destination
106
0 (OFF), 25 (PITCH)
50 (FILT), 75 (WAVE)
100 (OSC2)
OSC 1 OCTAVE
Sets the octave of oscillator 1
74
0 (16’), 32 (8’)
48 (4’), 64 (2’)
WAVE
Sets the waveform of oscillator 1
9
0 – 127
OSC 1 LEVEL
Adjusts the volume level of oscillator 1
15
0 – 127
GLIDE RATE
Sets the portamento rate time
5
0 – 127
1-2 SYNC
Turns oscillator sync ON/OFF
77
0 (OFF), 64 (ON)
OCTAVE
Sets the octave of oscillator 2
75
0 (16’), 32 (8’)
48 (4’), 64 (2’)
OSC 2 FREQ
Adjusts the frequency of oscillator 2
10
0 – 127
WAVE
Sets the waveform of oscillator 2
11
0 – 127
OSC 2 LEVEL
Adjusts the volume level of oscillator 2
16
0 – 127
PITCH BEND UP AMT
Selects the pitch end UP amount
107
0 – 127
PITCH BEND DN AMT
Selects the pitch bend DOWN amount
108
0 – 127
CUTOFF
(SEE NOTE 1)
19 (MSB)
51 (LSB)
0 – 127
RESONANCE
21
0 – 127
KB AMOUNT
Adjusts the amount of pitch CV affecting the cutoff
22
0 – 127
EG AMOUNT
Adjusts the EG amount affecting the cutoff
27
0 – 127
OVERLOAD
18
0 – 127
FILTER POLES
109
0 (1), 32 (2), 64 (3), 96 (4)
FILTER VELOCITY SENS
110
See table for list of values
LP Stage II MIDI CC messages
Page 55
LP Stage II User’s Manual - The User Interface
CC
VALUE/RANGE
ATTACK
23
0 – 127
DECAY
24
0 – 127
SUSTAIN
25
0 – 127
RELEASE
26
0 – 127
Adjusts the volume envelope attack time
28
0 – 127
DECAY
Adjusts the volume envelope decay time
29
0 – 127
SUSTAIN
Sets the volume envelope sustain level
30
0 – 127
RELEASE
Adjusts the volume envelope release time
31
0 – 127
EGR RELEASE ON/OFF
Sets the state of the EGR Release parameter
111
0 (OFF), 64 (ON)
EGR LEGATO
Sets the state of the EGR Legato parameter
112
0 (ON), 43 (OFF)
86 (RESET)
ARPEGGIATOR ENABLE
Enables/disables the Arpeggiator
113
0 (OFF), 64 (ON)
ARP RUN/STOP
Starts and stops the Arpeggiator
90
0 (OFF), 64 (ON)
ARP CLOCK RATE
(SEE NOTE 2)
Sets the Arpeggiator Clock Rate
4 (coarse)
0 – 127
ARP CLOCK SOURCE
Sets the Arpeggiator Clock Source
114
0 (INT), 43 (LFO)
86 (MIDI)
ARP CLOCK DIVISIONS
Sets the Arpeggiator Clock Divider
115
See table for list of values
ARP RANGE (OCTAVES)
Sets the Arpeggiator Octave Range
116
0 (-3), 19 (-2)
38 (-1), 57 (0), 71 (+1)
90 (+2), 109 (+3)
ARP PATTERN
Selects the Arpeggiator Pattern
117
0 (UP), 43 (DOWN)
86 (ORDER)
ARP MODE
Selects the Arpeggiator Mode
118
0 (LOOP)
43 (BACK/FORTH)
86 (ONCE)
ARP LATCH ENABLE
Enables/disables the Arpeggiator Latch
119
0 (OFF), 64 (ON)
ARP LATCH/UNLATCH
Sets the Latch/Unlatch status
91
0 (OFF), 64 (ON)
VOLUME
Volume Control
7
0 – 127
KEYBOARD NOTE
PRIORITY
Selects the Keyboard Note Priority
88
0 (GLOB), 32 (LOW)
64 (HIGH), 96 (LAST)
MOD WHEEL
(SEE NOTE 1)
Modulation Performance Control
1 (MSB)
33 (LSB)
0 – 127
Arpeggiator
ATTACK
Output
FUNCTION
Keybd
CONTROL/PARAMETER
Left-Hand
Controller
Envelope Generator
SECTION
LP Stage II MIDI CC messages
Page 56
LP Stage II User’s Manual - The User Interface
TIME VALUE
CLOCK DIVIDER
(LP DISPLAY)
VALUE
1/32 note
1/32
0
Dotted 1/32 note
1/32 DOT
8
1/16 note
1/16
16
Dotted 1/16 note
1/16 DOT
24
1/8 note
1/8
32
Dotted 1/8 note
1/8 DOT
40
Quarter note
1/4
48
Dotted quarter note
1/4 DOT
56
Half note
1/2
64
Dotted half note
1/2 DOT
72
Whole note
WH
80
Whole note + quarter note
WH + 1/4
88
Whole note + half note
WH + 1/2
96
Whole note + dotted half note
WH + 1/2 DOT
104
Whole note + whole note
WH + WH
112
MIDI CC values for the LFO and Arpeggiator Clock Divider (CC#103 & CC#115)
FILTER VELOCITY
SENSITIVITY
VALUE
-8
0
-7
12
-6
19
-5
26
-4
33
-3
40
-2
47
-1
54
0
61
+1
68
+2
75
+3
82
+4
89
+5
96
+6
103
+7
110
+8
117
MIDI CC values for Filter Velocity Sensitivity (CC#110)
Page 57
LP Stage II User’s Manual - Appendices
Appendix A - MASTER MODE Menu Tree
The structure of the Master Mode menus is shown below. With the exception of the Advanced Preset
parameters, which are individually stored with each preset, all Master Mode menu parameters effect the
LP globally.
Page 58
LP Stage II User’s Manual - Appendices
Appendix B - LFO Sync Modes
There are two LFO Sync Modes: INTERNAL and MIDI CLOCK.
INTERNAL:
When the LFO Sync Mode is set to ‘INTERNAL’, the LFO rate is controlled directly via the MODULATION
knob (when the LFO RATE panel button is selected), or by Tap Tempo, or by sending a MIDI CC#3 command with a value between 0-127 (MIDI CC#3 controls the LFO RATE).
When the Tap Tempo function is engaged, the internal LFO Rate is adjusted directly by tapping the LFO
RATE button. You can also adjust the LFO rate using the MODULATION control as normal, and this will
override the rate set by Tap Tempo. Note that the LFO RATE panel button will continue to blink, indicating
that Tap Tempo is still active - you can tap in a new tempo at any time. To disengage Tap Tempo mode, press
and hold the LFO RATE button. The LFO Rate will remain at the last rate you selected.
MIDI CLOCK:
When the LFO Sync Mode is set to ‘MIDI CLOCK,’ the LFO rate is synchronized to incoming MIDI Clock
pulses, with one LFO cycle equal to the note duration set by the LFO SYNC CLOCK parameter. The Little
Phatty must have a MIDI Input enabled in the MIDI Setup menu in order to receive MIDI Clock. The Little
Phatty Stage II has both USB and standard DIN MIDI inputs, and can receive MIDI Clock signals on either
input. It is recommended not to send different clock signals to both inputs simultaneously, unless you want
some very strange LFO signals to result!
If you change the Sync Mode from ‘INTERNAL’ to “MIDI CLOCK” while the LP is not receiving a MIDI
clock signal, the actual LFO rate will not change right away; it will continue at the same rate. However, the
LFO rate is no longer being controlled by the internal LFO clock. This means that if you try to control the
LFO Rate from the panel knob or send a MIDI CC# 3 message while the LFO Sync Mode is set to MIDI
CLOCK, the actual rate of the LFO will not change. NOTE: These actions still update the internal “LFO
you change the LFO Sync Mode back to ‘INTERNAL’, the rate of the LFO will jump to the internal LFO
Clock rate.
If the LFO is synchronized to a MIDI Clock pulse and the MIDI Clock is stopped, the LFO will continue at
the last MIDI Clock rate it received. If you hear a change in the rate of the LFO when you stop sending a
MIDI Clock signal, it is a sign of jitter or instability in your MIDI Clock source. The Little Phatty performs a
running average of the clock pulses it receives, so the more stable your MIDI Clock source, the smoother
the resulting LFO waveform will be. Very unstable clock sources can cause distortion in the LFO waveform,
due to the constant LFO Rate corrections required to stay in sync with an unstable timing signal.
When the Tap Tempo is engaged and a valid tempo is tapped in, Tap Tempo overrides MIDI Clock sync for
the LFO. The LFO reverts to the MIDI Clock rate when Tap Tempo is disengaged.
Page 59
LP Stage II User’s Manual - Appendices
Appendix C - Arpeggiator Clock Source
There are three Arpeggiator Clock Sources: Internal (INT), LFO, and MIDI Clock (MIDI). Detailed
descriptions of these clock source options appears below.
INTERNAL:
When the Arpeggiator Clock Source is set to INTERNAL, the Arpeggiator runs at the internal Arpeggiator
Clock rate. This defaults to the clock rate saved in the currently-active preset. You can change the internal
Arpeggiator clock rate by using the MODULATION control, or by Tap Tempo, or by sending a MIDI CC#90
command with a value in the range 0-127. While the arpeggiator is running, you can change its internal
clock rate by selecting the LFO RATE panel button and adjusting the MODULATION control. The lower
line of the Little Phatty LCD will display ‘ARP XXX BPM’, showing the tempo of the arpeggiator clock. Note
that due to the shared controls, you cannot use the MODULATION control to adjust the internal LFO
Rate while the Arpeggiator is running in this mode. However, you can still adjust the LFO Rate remotely by
sending a MIDI CC#3 command.
When the Tap Tempo function is engaged, the Arpeggiator Clock is adjusted directly by tapping the LFO
RATE button. You can also adjust the Arpeggiator Clock using the MODULATION control (provided that
prior to engaging Tap Tempo, the MODULATION control was set to adjust the Modulation Rate and not
the Amount). Adjusting the Arpeggiator Clock in this manner will override the rate set by Tap Tempo. Note
that the LFO RATE panel button will continue to blink, indicating that Tap Tempo is still active - you can
tap in a new Arpeggiator Clock at any time. To disengage Tap Tempo mode, press and hold the LFO RATE
button. The Arpeggiator Clock will remain at the last rate you selected.
LFO:
per LFO cycle. Unlike Internal mode, you can adjust the internal LFO Rate directly from the panel while
the Arpeggiator is running. The Arpeggiator Clock Divider (CLK DIV) determines how many notes the
Arpeggiator plays per LFO cycle. Note that you can still choose either Internal or MIDI Sync to be the LFO
Clock source, independent of this setting. The Arpeggiator will follow the LFO rate in either case.
MIDI:
When the Arpeggiator Clock Source is set to MIDI, the Arpeggiator rate is directly synchronized to
incoming MIDI clock. If there is no MIDI clock signal present, the arpeggiator will not play (and in fact, you
will not hear any notes from the LP keyboard!). The Arpeggiator Clock Divider (CLK DIV) determines how
many notes the Arpeggiator plays per measure.
PERFORMANCE TIPS:
1. When the Arpeggiator Clock Source is set to ‘INT’, you can use the Tap Tempo function
to get clock rates that fall outside the minimum and maximum rates available from the
MODULATION control.
2. When the Arpeggiator Clock Source is set to ‘MIDI’, if the Latch is enabled and a
latched arpeggio pattern is playing, you can stop the MIDI clock and the pattern will stop
playing; when you restart the MIDI clock, the latched pattern is retained and it will resume
playing again.
Page 60
LP Stage II User’s Manual - Appendices
Appendix D - The Calibration Preset
preset location appears after preset 99). The Calibration Preset is a single-oscillator squarewave tone that
plays Oscillator 1 at full level. This preset is used primarily for the LP’S AutoTune function, but it can also be
also useful as a default starting point for preset development. Note that the Calibration Preset cannot be
saved to the CA memory location, but it can be saved to any other preset location (00-99).
The tables below list the default values of the Calibration Preset (bold text is used to indicate Precision
Mode values).
Envelope Generator
Filter
Oscillators
PARAMETER
VALUE
LFO RATE
PARAMETER
VALUE
0
FILTER POLES
4
AMOUNT
0
EGR RELEASE
ON
SOURCE
SQUARE
GATE
LEGATO ON
DESTINATION
WAVE
FILTER SENSITIVITY
0
OSC 1 OCTAVE
16’
MOD SOURCE 5
FILT
WAVE
2048
MOD SOURCE 6
OSC2
OSC 1 LEVEL
4095
PB UP/DN
+2 / -2
GLIDE RATE
1726
MOD DEST2
OFF
1-2 SYNC
OFF
OCTAVE
16’
OSC 2 FREQ
2048
WAVE
2048
OSC 2 LEVEL
0
CUTOFF
4095
RESONANCE
0
KB AMOUNT
2701
EG AMOUNT
2048
OVERLOAD
0
ATTACK
0
DECAY
0
SUSTAIN
2048
RELEASE
0
ATTACK
0
DECAY
0
SUSTAIN
4095
RELEASE
0
SECTION
Advanced Preset
Parameters
Modulation
SECTION
Page 61
LP Stage II User’s Manual - Appendices
Appendix E - Accessories
To further enhance the functionality of the Little Phatty, Moog Music offers the following optional accessories.
For complete information on everything listed here, including pricing and ordering info, see your Moog dealer,
or visit www. moogmusic.com
outputs are: Gate, Pitch, Filter Envelope, Volume Envelope, and Mod Bus. The CV outputs appear on jacks
Field Upgrades are not available. Contact the factory for more information.
EP2 Expression Pedal
musicians need for precise, playable control. The heavy construction (2.5 lbs) provides a solid feel, and an
output level control allows you to adjust the expression range of the pedal.
CP-251 Control Voltage Processor
The CP-251 Control Voltage Processor offers a number CV processing options that can be used
with any Little Phatty, Moogerfooger analog effects module, or other voltage-controlled gear. The CP251 provides a dual waveform LFO, Noise Generator, Sample-and-Hold circuit, as well as two active
Attenuators, a Lag Processor, a CV Mixer and a 4-way Multiple. The combination gives you ways to
modify, mix, and distribute control voltages to produce the incredible variety of sounds and effects that
analog synthesizers are famous for.
VST Little Phatty Editor
The VST Little Phatty Editor is a VST-format software application that provides full control and editing
of presets and performance controls on your Little Phatty via MIDI from within your VST-compatible
host application. It allows total management of custom sounds directly within your sequencing or music
production environment. All LP parameters are fully automatable, giving you the ability to dynamically
program the Little Phatty to respond to your music (a VST-compatible host is required).
Little Phatty Editor/Librarian Software
The ultimate software tool for editing and organizing Little Phatty presets. The Editor/Librarian software
allows you to send, receive, edit, organize and archive individual presets or preset banks. A single edit
screen provides access to all of the Little Phatty’s preset parameters–including Advanced Preset functions
like Pot Mapping, Filter Poles and Modulation Programming–simplifying the editing process while
maximizing your creative potential. Additional capabilities include the ability to create new Presets by
combining any two Presets in various ways (mix, morph, mutate or randomize), make single parameter
adjustments for all 99 Presets at once, and create unlimited custom Preset banks.
Page 62
LP Stage II User’s Manual - Appendices
Appendix F - Tutorial
For those who are new to the world of electronic music, let’s take a few moments to go through the basics
of sound and synthesis.
Sound is simply the audible change in air pressure. When we perceive
sound, our ears are responding to variations in air pressure that happen to occur in our range of hearing. The rate of these variations is
called the Frequency, which is measured in cycles per second, or Hertz
(Hz). Generally, our ears can hear frequencies from about 20 Hz (on
the low end) to about 20,000 Hz (on the high end). The frequency of
a sound corresponds to its pitch. A low frequency corresponds to a
low-pitched sound (such as a bass) and a high frequency sound corresponds to a high-pitched sound (such as a piccolo).
A second perception of sound is its volume or loudness. Loud sounds
Amplitude, which is measured in Decibels (dB).
A third perception of sound is its tone color, also known as its timbre. There is no standard of measurement
for timbre, so instead we use familiar terms to describe the tone color of a sound – bright or dull, buzzy or
mellow, tinny or full. The tone color is a function of the harmonic content of the sound. Sounds that are
bright and buzzy have a lot of harmonics, while sounds that are muted and dull have few harmonics.
Harmonics are mathematically related overtones of the base pitch. To explain what that means, let’s consider an example: if the base pitch is 100 Hz, harmonics will occur at 200 Hz (2 x 100), 300 Hz (3 x 100),
400 Hz (4 x 100), etc. The levels of the harmonics are always much lower than the level of the base pitch,
and they decrease as the frequency goes up, so a 200 Hz harmonic will be louder than a 300 Hz harmonic,
which will be louder than a 400 Hz harmonic, and so on. Note that there are some sounds that contain
overtones that are not mathematically related to the base pitch. These include the ‘metallic’ sounds created
by percussion instruments like cymbals, gongs and chimes, and noise sounds like wind or white noise. The
with the base pitch.
Using the electrical circuits in synthesizers, we can manipulate the three parts of sound (pitch, volume and
timbre) to create new sounds and simulate existing ones. This process is called Synthesis. There are a
number of ways to synthesize sound electronically (including frequency modulation, granular, phase
distortion and additive to name but a few), but the method used most often is called Subtractive Synthesis.
In Subtractive Synthesis, you start with signals rich in tone color, and then eliminate (i.e. subtract) frequencies
to achieve the desired sound.
A synthesizer design based on subtractive synthesis typically consists of three main components and three
components are the Keyboard controller, Envelope Generator, and Low Frequency Oscillator.
Page 63
LP Stage II User’s Manual - Appendices
The Subtractive Synthesis Model
The Oscillator is the starting point of Subtractive Synthesis, for it is here that the initial sound is created. The
oscillator creates electrical vibrations which function in a manner similar to the strings of a guitar; they create the
signal source that the rest of the system will use to modify and shape the sound. The key oscillator parameters
are pitch and waveform.
equal-tempered scale (more about the keyboard later).
The waveform determines the harmonic richness of the audio signal. There are four basic waveforms common
to most synthesizers: sawtooth, square, triangle and sine.
The sawtooth wave is the richest sounding of the four waves. It contains all
of the harmonics, and has a bright, buzzy sound. Sawtooth waves are ideal
for brass and string sounds, bass sounds and rich accompaniments.
The square wave possesses a hollow sound compared to the sawtooth,
owing to the fact that it contains only odd harmonics. This hollow
characteristic is ideal for distinctive lead and sustained (pad) sounds.
An interesting aspect of the square wave is that the waveshape can be
changed to make the top and bottom parts asymmetrical, creating a pulse
wave. By changing the shape of the wave, new harmonics are introduced.
Pulse waves are ideal for creating clavinet-like sounds, but are also useful
for creating lush pads. Many synthesizers allow you to dynamically control
the shape, or ‘width’ of the pulse wave using modulation sources such as a
low frequency oscillator (LFO). This type of waveform control is known as
‘pulse width modulation’, or PWM.
Page 64
LP Stage II User’s Manual - Appendices
Like the square wave, the triangle wave only contains odd harmonics,
but the levels of the harmonics in a triangle wave are much less. The
triangle wave has a soft, slightly buzzy sound that is suitable for high-
The sine wave is the purest waveform of them all. It has no harmonics,
so it produces a very pure tone. Because of this, sine waves generally
aren’t used as primary audio signals, but are often used to reinforce or
enhance other waves. They are also used as modulation sources.
Synthesizers often have more than one oscillator, and each oscillator usually has its own frequency and
waveform and level (volume) parameters. Several oscillators make possible rich and complex sound source
to combine them with the oscillators, or process the external audio by itself using the synthesizer components.
The combined sound sources are routed to the Filter, the circuit that removes frequencies. Although there
works to remove high frequency signals is called the Cutoff frequency.
Above the cutoff, frequencies are gradually reduced according to the
in unwanted frequencies. This is a highly desirable quality for subtractive
synthesis.
cutoff frequency, emphasizing any signal frequencies that appear there. It’s possible to adjust the resonance
same as the cutoff frequency.
For the Oscillator, it means the higher the voltage, the higher the pitch. For the Filter, it means the higher the
volume. Since each of the three main components respond to a voltage, the entire synthesis system thus
components, like Envelope Generators and Low Frequency Oscillators (which generate control voltages) to
further vary the sound.
Page 65
LP Stage II User’s Manual - Appendices
keyboard provides a familiar musical instrument ‘interface’ that produces a control voltage and trigger signal
whenever a key is pressed. The level of the control voltage signal is a function of which key is pressed - the
higher up on the keyboard you play, the higher the level of the control voltage.
The keyboard’s control voltage signal is commonly routed to the oscillators to control the pitch, and it can also
trigger signal is routed to the Envelope Generators to trigger the envelopes.
The second auxiliary component is the Envelope Generator, or EG. The
EG makes no sound by itself. Rather, it creates a time-varying control
Phatty, provide several EG’s for independent envelope control of the
The EG is triggered from a Gate signal that is generated every time a
key is pressed on the keyboard. Once triggered, as long as the key is
held down (i.e. the Gate signal is present), the EG envelope will evolve
according to the control settings.
The LP’s Envelope Generators have four stages that can be set individually:
Attack – The time to go from zero volts to the maximum voltage (the fade in time).
Decay – The time to go from the maximum voltage to the Sustain level.
Sustain – The maximum level of the envelope after completing the attack and decay stages (if the
key is held). If the sustain time is zero, the envelope consists of just the attack and decay
stages, and the Release control has no effect.
Release – The time to go back to zero volts when the key is released (the fade out time).
The last auxiliary component is the Low Frequency Oscillator, also known
as the LFO. The LFO operates like the main oscillators in almost all
respects, but generally at a much lower frequency. LFO’s are typically used
to send modulation control signals to the main components. For example,
if you route a 6Hz LFO signal to an oscillator, it will produce vibrato by
varying the pitch of the oscillator. If you send that same LFO signal to
variations in the sound, making the sound more dynamic and interesting.
Page 66
LP Stage II User’s Manual - Appendices
So there you have it - the six basic components that make up a synthesizer based on the subtractive
synthesis model. Keep in mind that most ‘subtractive’ synthesizers often include more than one of each
component. This is especially true of the oscillators and envelope generators (the Little Phatty has two of
can act as an additional LFO. Synthesizers that offer more than one of each type of component provide
a broader palette for sound creation, resulting in sounds with a greater complexity, variation, and depth.
Nonetheless, even a simple analog synth like the LP can be used for incredibly expressive sounds given solid
programming and playing technique.
“Power Tools for Synthesizer Programming” by Jim Aiken, available from Backbeat Books
“Analog Synthesis” by Reinhard Smitz, available from Wizoo Publications
You can also learn a lot from examining the factory presets in detail. The Little Phatty’s presets were crafted
by some of the best sound designers in music today, and you can learn their secrets simply by exploring the
individual parameters that makeup the sound. Just dial up a few presets and dig in!
As with all musical instruments, practice, exploration and experimentation are an important part of achieving great results. Spend a little time getting to know your new instrument - your efforts will be rewarded!
Page 67
LP Stage II User’s Manual - Appendices
Appendix G - MIDI Implementation Chart
MIDI Implementation Chart
Moog Music
Little Phatty Stage II Analog Synthesizer
FUNCTION
Date: 9/20/09
Version 2.2
TRANSMITTED
RECOGNIZED
REMARKS
Default
Changed
1
1-16, OFF
1
1-16, OFF
Default
Messages
Altered
3
X
X
4*
X
X
24-108
0-127
O
X
O
X
After touch
X
X
Pitch Bend
O
O
Programmable from 0 to ±12 semitones
Control change
O
O
1, 3-5, 6, 7, 9-11, 15,16, 18, 19, 21-31, 33, 36,
53, 65, 68, 69, 74, 75, 77, 88, 90, 91, 102-119
O
00 - 99
O
00 - 99
System Exclusive
O
O
System Commands
Song Position
Song Selection
Tune
X
X
X
X
X
X
Clock
Commands
X
X
O
O
Local Off
All Notes Off
Active Sense
System Reset
X
O
X
X
X
O
X
X
Basic channel
User selectable
Mode
Note number
* Note priority is user selectable
The transmitted note numbers follow the
OCTAVE switch setting, providing a total
range of seven octaves. With no octave
transposition, the transmitted range is
48 – 84 (C3-C6)
Velocity
Note ON
Note OFF
Program change
True Number
System Real Time
Receives Timing Clock
Receives START, CONTINUE & STOP
Aux messages
Legend:
Page 68
O = Yes Modes: Mode 1 - Omni On, PolyMode 3 - Omni Off, Poly
X = No
Mode 2 - Omni On, Mono
Mode 4 - Omni Off, Mono
LP Stage II User’s Manual - Appendices
Appendix H - Service and Support Information
Moog Limited Warranty
Moog Music warrants its produces to be free of defects in materials or workmanship and conforming to
ranty period, any defective products will be repaired or replaced, at Moog Music’s option, on a return-to-factory basis. This warranty covers defects that Moog Music determines are no fault of the user. In countries
outside of the USA, contact the Moog authorized distributor listed on our web site (www.moogmusic.com)
for service.
Returning your Product to Moog Music
You must obtain prior approval in the form of an RMA (Return Material Authorization) number from Moog
Music before returning any product. You can request an RMA number on-line using the ‘Product Register’
link on the Moog Music home page or call us at (828) 251-0090. The Little Phatty must be returned in the
original inner packing including the foam inserts. The warranty will not be honored if the product is not
properly packed. Once packed, send the product to Moog Music Inc. with transportation and insurance
charges paid.
What we will do
Once received, we will examine the product for any obvious signs of user abuse or damage as a result of
transport. If the product has been abused, damaged in transit, or is out of warranty, we will contact you with
an estimate of the repair cost.
How to initiate your warranty
Please initiate your warranty on-line at www.moogmusic.com by clicking on the “Product Register” tab. If
Moog Music, Inc.
Attn: New Product Registration
2004-E Riverside Dr.
Asheville, N.C. USA 28804
Appendix I - Caring for the Little Phatty
Clean the Little Phatty with a soft, moist cloth only – do not use solvents or abrasive detergents. Heed the
safety warnings at the beginning of the manual. Don’t drop the unit. If you are shipping your Little Phatty to
the factory for servicing, we recommend using the original shipping carton, or an ATA approved Road Case.
Shipping the Little Phatty in a non-ATA or packaging other than the original carton will void the warranty. When
setting up the Little Phatty, be sure your stand or table is capable of holding at least 25 lbs.
AN IMPORTANT NOTE ABOUT SAFETY: Do not open the chassis. There are no user
serviceable parts in the Little Phatty. Maintenance of the Little Phatty synthesizer should be
Page 69
LP Stage II User’s Manual - Appendices
Appendix J - Using the CP-251 with the Little Phatty
The Moogerfooger® CP-251 Control Processor makes an ideal companion to the Little Phatty synthesizer.
The CP-251 provides an LFO with two waveforms (Triangle/Square), a Sample & Hold circuit with two outputs (stepped/smooth), a Lag Processor, a Noise source, a Mixer and two Attenuators. The CP-251 greatly
expands the sonic palate of the LP, allowing for the creation of interesting new sonic textures.
and try these ideas!
To create a steady Vibrato effect:
- Using a ¼” patch cable, connect the CP-251 LFO Triangle output to an Attenuator Input.
- With another ¼” patch cable, connect the Attenuator Output to the LP’s Pitch CV jack.
On the CP-251, set the LFO Rate control to 6 Hz (about 1 o’clock), and adjust the Attenuator to about 0.5
Setting the LFO Rate considerably higher will result in wild FM textures.
To create Tremolo:
- Using a ¼” patch cable, connect the CP-251 LFO Triangle output to an Attenuator Input
- With another ¼” patch cable, connect the Attenuator Output to the LP’s Volume CV jack.
On the CP-251, set the LFO Rate control to 6 Hz (about 1 o’clock), and adjust the Attenuator to 10 on the
dial. This will produce the pulsating amplitude modulation known as tremolo. Adjust the LFO Rate to taste.
For a sharp, volume-chopping effect, use the LFO Square wave output in place of the LFO Triangle out.
To produce Timbral Modulation:
- Using a ¼” patch cable, connect the CP-251 LFO Triangle output to an Attenuator Input
- With another ¼” patch cable, connect the Attenuator Output to the LP’s Filter CV jack.
On the CP-251, set the LFO Rate control to 6 Hz (about 1 o’clock), and adjust the Attenuator to about 2
the LFO Rate considerably higher will result in wild timbral textures, while a very low setting will create a
Triangle out.
Using the multiple jack on the CP-251, you can simultaneously route the LFO or S&H modulation signal to
the LP’s Pitch, Filter and Volume inputs all at once, or split the modulation signal using the multiple jack and
route it into both Attenuators to have two separately controllable modulation sources for the LP.
Pitch Transposition:
Using an Expression Pedal (like the Moog EP-2), you can program the CP-251 to transpose the LP’s pitch to
any interval desired and have it ready any time you need it. Here’s the connection:
- Connect the EP-2 to an Attenuator Input.
- With another ¼” patch cable, connect the Attenuator Output to the LP’s Pitch CV jack.
Page 70
LP Stage II User’s Manual - Appendices
To set the transposition interval, press the EP-2 footpedal all the way down and slowly adjust the Attenuator
on the CP-251 while striking a note on the LP. The pitch will go up as you raise the Attenuator level. Rock
the EP-2 pedal between full up and full down positions to hear the difference in pitch, and adjust the
Attenuator until the desired interval is reached. This will give you a foot-activated transposition controller
you can use at any time during a performance!
Noise as a Control Voltage:
You can use the CP-251 Noise source as a control voltage by simply routing it to any of the LP’s CV inputs
- Using a ¼” patch cable, connect the CP-251 Noise output to an Attenuator input.
- With another ¼” patch cable, connect the Attenuator output to one of the LP’s CV jacks.
This will allow you to raise or lower the Noise level as desired, adding just a touch of noise to add realism to
a sound, or a blast of noise for extreme sonic effect.
Combining Control Voltages:
Using the CP-251 Mixer, you can add the LFO and Noise source together for use as a combined control
voltage signal, giving a result similar to using the Modulation Mix control on the original Minimoog:
- Using a ¼” patch cable, connect the LFO Triangle output to the CP-251 Mixer 1 input
- Using another ¼” patch cable, connect the Noise output to the CP-251 Mixer 2 input
- With another ¼” patch cable, connect the Mixer “+” output to the LP’s Filter CV jack.
Set the CP-251 Mixer 1 and Mixer 2 inputs to ‘5’ on the dial, and set the Master level to ‘10’. Adjust the Mixer 1 and 2 levels to balance the LFO and Noise signals, and use the Master level to set the effect intensity.
You can also use the Mixer’s Offset Voltage control by itself to provide an additional steady CV signal, or
combine it with the LFO and Noise. An interesting effect is to mix the LFO and Noise source together with
a negative offset (set the Mixer Offset control to about 9 o’clock) and route the Mixer Output to the LP
Filter Input. As the Mixer’s Master control is raised, the LP’s Filter Cutoff will be lowered (due to the negative offset voltage) while the combined LFO/Noise signal is introduced.
Noise as an Audio Source:
Don’t forget that you can use the CP-251 Noise source as an audio source to add interesting artifacts to
an existing sound (for example, creating the illusion of ‘breath’ in an instrument) or process the noise just by
itself to create wind, surf, or ‘pole’ noises. Simply route the CP-251 Noise output through an attenuator and
then into the LP’s Audio In jack. Noise never sounded so good!
We’ve just scratched the Surface
These are just a few of the synthesis possibilities afforded by the Little Phatty and the CP-251. Other CV
equipment like our Moogerfooger® analog effects can be added to expand the sonic potential of the
Little Phatty. Other CV compatible equipment can be connected as well. Just keep in mind that you should
always connect a source to a destination, and that you shouldn’t combine multiple CV to a single destination
without a mixer. We encourage you to experiment, as there are many possibilities for exploring synthesis
– whether you are trying to duplicate a sound or effect you heard, or if you are trying to make a sound that
nobody’s heard before. Remember - experimentation is part of the fun!
Page 71
LP Stage II User’s Manual - Appendices
Type:
Programmable monophonic analog
synthesizer w/100 presets
Synth Engine:
Oscillator Section:
Oscillator 1:
Octave: 16’, 8’, 4’, 2’
Wave: Continuously variable
(triangle/sawtooth/square/pulse)
Level: 0 to 100%
Oscillator 2:
Frequency: ± 7 semitones
Octave: 16’, 8’, 4’, 2’
Wave: Continuously variable
(triangle/sawtooth/square/pulse)
Level: 0 to 100%
Glide Rate: 0 to 100%
Oscillator Sync ON/OFF
Filter Section:
Cutoff: 20Hz to 16KHz
Resonance: 0 to Self-oscillation
Keyboard Amount: 0 to 100%
Filter Env. Amount: -100% to +100%
Overload: Variable pre and post
distortion, adds +6dB signal
boost at full level.
Envelope Generator Section (x2):
Attack Time: 0.001 to 10 seconds
Decay Time: 0.001 to 10 seconds
Sustain Level: 0 to 100%
Release Time: 0.001 to 10 seconds
Modulation Section:
LFO Rate: 0.2 Hz to 50 Hz
Source: LFO triangle, LFO square,
LFO sawtooth, LFO ramp,
Filter EG, Oscillator 2
Destination: Pitch, Oscillator 2,
Filter, Wave
Amount: 0 to 100%
Keyboard:
37 keys (C-C)
Transmits polyphonic MIDI Note On/Off
with velocity
Page 72
Performance Controls:
Pitch Wheel: programmable, up to
±12 semitones
Modulation Wheel: 0 to 100%
Fine Tune: ±3 semitones
Glide ON/OFF
Octave UP/DOWN: ±2 octaves
Output ON/OFF
Master Volume
Analog Edit Potentiometers (4)
User Interface:
LCD Display, 2 x 16 characters
Mode switches:
Master
Preset
Selection/Navigation controls:
Cursor
Enter/Store
Value encoder (with pushswitch)
Side Panel:
AC Power Inlet (universal power supply,
100-250 VAC, 50-60 Hz,
power consumption: 12 Watts)
Power ON/OFF
Audio Out
Ext. Audio In (accepts +4dBu line level signal)
Control Voltage Inputs:
Pitch CV: -5 to + 5V
Filter CV: -5 to +5V
Volume CV: 0 to +5V
Keyboard Gate: +5V trigger
MIDI In, Out
Outputs:
Monophonic Audio Out (on side panel)
Headphone jack (¼” TRS on front panel)
Dimensions:
26.75” x 14.75” x 6.75”
(679.5 mm x 374.7 mm x 141.5 mm)
Weight:
22lb (9.9 kg)
Operating System;
Flash upgradeable via MIDI SysEx
LP Stage II User’s Manual - Glossary
Glossary
Here are a few key terms that cover the basics of sound generation as used in the Little Phatty synthesizer.
ADSR – Abbreviation for Attack, Decay, Sustain and Release, the four stages of an envelope control voltage.
Amplitude – The strength of a sound’s vibration measured in Decibels (dB). Amplitude corresponds to the
musical term Loudness.
Continuous Controller (CC) – A type of MIDI message used to transmit control commands. These commands are digital control signals for parameters such as volume, vibrato and panning.
Control Voltage – Control voltages (also called CVs) are used in analog synthesizers to affect changes in the
sound. In the case of pitch, pressing a key on the keyboard sends a control voltage that determines the
pitch of the oscillators. The keyboard CV is set to produce an equal tempered scale. As you play up the
keyboard, the CV is raised and the pitch increases. The pitch can also be affected by other CV sources,
like an LFO, often used to produce vibrato. Other major synthesizer components that respond to CV’s
the CV, the higher the gain, or volume).
Envelope – An envelope describes the contours that affect the characteristics of a sound (pitch, tone and
volume) over time. For example, when a string is plucked, its amplitude is suddenly very loud, but then
dies out gradually. This describes the Volume envelope of the sound. We observe that the initial part of
the plucked sound is very bright, but then the brightness fades away. This describes the Tonal envelope
contour. We also hear the frequency of the sound go slightly higher when the string is plucked, and then
drop slightly as the note fades. This is the pitch envelope contour. A synthesizer can create these kinds
Envelope Generator – A circuit that generates an envelope signal. The envelope generator creates a timevarying signal that can be applied to any voltage-controlled circuit. The Envelope Generators in the
Little Phatty have four adjustable segments: Attack, Decay, Sustain and Release, also sometimes referred
the sound of a plucked string starts suddenly, meaning its volume envelope has a fast attack time. Decay
which the envelope sustains after the initial transient (the attack and decay portion). Finally, Release determines how long the envelope takes to fade away. An Envelope Generator uses a trigger to start and
stop the ADSR envelope. This trigger is called a gate signal, and it’s produced whenever a key is pressed
on the keyboard. The gate signal turns on and stays on as long as a key is held down. When the key
is released, the gate signal turns off. When the gate is on, the Envelope Generator is triggered and the
envelope signal moves through the Attack and Decay segments and settles at the Sustain level as long as
the gate signal is on. When the gate goes off, the release segment of the envelope begins. A new gate
signal retriggers the Envelope Generator.
Page 73
LP Stage II User’s Manual - Glossary
EEPROM – EEPROM stands for ‘Electrically Erasable Programmable Read Only Memory’. This is a type of
digital memory used to store information, even after the power is turned off. In the Little Phatty, the
EEPROM is used to store global settings and presets, and operating system parameters such as tuning
information.
Filter – A circuit that removes some frequencies and allows other frequencies to pass through the circuit.
Frequency – The rate of vibration in sound measured in Hertz (Hz or cycles per second). The average hearing
range of the human ear is from 20 to 20,000 Hz. Frequency corresponds to the musical term ‘pitch’, but the
two terms are not always interchangeable. Frequency is an objective measurement of a sound, while pitch
is the perception of a sound, low, high, or mid-ranged. A low frequency corresponds to a low-pitched sound
such as a bass; a high frequency sound corresponds to a high-pitched sound such as a piccolo. In music, a
change in pitch of one octave higher equals a doubling of the frequency.
Frequency Modulation – Also known as FM, Frequency Modulation describes the technique of using one
oscillator to modulate the frequency of another. In FM, the modulating oscillator is called the ‘modulator’,
while the other oscillator is known as the ‘carrier’. The carrier oscillator is the one you hear. When
the modulator frequency is very low (about 6Hz), the effect is described as vibrato. As the modulator
frequency is raised into the audio range, new modulation frequency components are created, and the effect
is perceived as adding new overtones to the carrier signal.
Glide – Also called portamento, is the slowing down of pitch changes as you play different notes on the
keyboard. Certain acoustic instruments, like the trombone or the violin, create this effect when the
performer adjusts the tubing or string length. The speed of the glide is the glide rate. In synthesizers,
a Glide Rate control determines the speed of the glide between notes.
Harmonic – A sound is made up of simple vibrations at many different frequencies (called harmonics) that give
a sound its particular character. This corresponds to the musical term timbre or tone color. A harmonic
sound, such as a vibrating string, is one in which the harmonics are mathematically related by what is called
the harmonic series. These sounds are typically pleasing to the ear and generally the consecutive vibrations
have the same characteristic shape or waveform. An enharmonic sound, such as a crash cymbal, is one
in which the harmonics are not mathematically related. Their waveforms look chaotic. White noise is an
enharmonic sound that contains equal amounts of all frequencies.
Little Phatty – A monophonic analog synthesizer designed by Bob Moog that is a descendant of the classic
Minimoog.
LED (Light Emitting Diode) – An electrical component that lights up when a voltage is applied.
Page 74
LP Stage II User’s Manual - Glossary
Low Frequency Oscillator – Also called an LFO, this is a special type of oscillator that generates signals
primarily below the range of human hearing (generally below 20 Hz). LFOs are typically used as a
source of modulation. For instance, an LFO with a triangle waveform, set to about 6 Hz and modulating
the pitch of a VCO results in vibrato. Changing the LFO waveform to a square wave will result in a trill.
An LFO modulating a VCA with a triangle wave creates tremolo.
LUT (Lookup Table) – A Lookup Table is a type of software data structure used to provide basic reference
information to the operating system. In the Little Phatty, LUT’s store tuning values and other
Mixer – A circuit for combining multiple sound sources or signals.
Modulation – Modulation is the use of a control voltage to shape a tone. Modulation has a source, a destination,
changed by the front panel cutoff control (the source), or as complex as mixing multiple CVs together to
Noise – A random audio signal having no fundamental, and where all the harmonics have equal strength (more
or less). Noise can be used as either an audio or modulation source. When used as an audio source, noise
can be used by itself to synthesize explosions or wind noises, or can be mixed with other waveforms to
create noise artifacts, such as breath sounds. When used as a modulation source, noise can introduce
instabilities to a sound, such as a ‘pitch cloud’ effect when noise modulates an oscillator. In the Little Phatty,
noise is available as a modulation source only, but external noise sources (such as from the CP-251 Control
Processor) can be applied through the LP’s Audio Input.
Oscillator – A circuit that electronically “vibrates”. When used as a sound source, an oscillator is the electronic
frequency is determined by one or more control voltages. Changes to these voltages correspond to
changes in pitch. An oscillator’s vibration can have different shapes or waveforms, such as a triangle,
sawtooth, or square wave. The Little Phatty has two oscillators for generating sounds.
pitches.
the one in the Little Phatty) has a 24dB/Octave response.
Sample and Hold (S&H) – A circuit that generates a random control voltage at regular intervals. Traditional
sample and hold circuits employ white noise as a signal source, taking periodic samples of this signal
and holding that sample (a voltage level) until the next sample is taken. Since the signal source is noise
(a random audio signal), the output of the S&H circuit is also random. The sampling interval is typically
controlled by a low frequency oscillator (LFO). By adjusting the speed of the LFO, the speed of the S&H
circuit can be varied. In the Little Phatty, digital circuitry is used to simulate an equivalent S&H circuit, and
the LFO Rate control sets the speed. The S&H output is available as a programmable modulation source.
Page 75
LP Stage II User’s Manual - Glossary
Sound – Audible vibrations of air pressure. For electronic sounds such as those produced by a synthesizer,
loudspeakers are used translate the electrical vibrations into the changes in air pressure which we perceive
as sound.
Subtractive synthesis – A method of creating tones using harmonically rich (bright) source material, and then
removing (or in some cases emphasizing) various frequency components to create the desired sound.
Synthesis – The generation of sound by electronic means, where the programmer or performer has the ability to
change the pitch, volume, timbre and articulation.
Timbre – Pronounced ‘tamber’, it refers to the quality of a sound by its overtones. An unprocessed sawtooth
wave has a bright timbre, while a triangle wave has a mellow timbre.
Tremolo – Technically a form of low frequency amplitude modulation, tremolo is a smooth audible pulsing of
volume. In synthesizers, tremolo is produced when a 5-6Hz LFO triangle or sine wave signal is applied to a
Waveform – The shape of an oscillator’s vibration. This determines its timbre. Commonly used waveforms
in subtractive synthesis are sawtooth, triangle, square, or rectangular. Different waveforms have different
timbres. A sawtooth has the greatest number of harmonics, and sounds bright and buzzy. A square wave
has only odd harmonics, and sounds bright, but hollow, like a clarinet. A rectangular wave can vary in shape,
but typically has a bright but thin sound, and a triangle wave’s harmonics are so low in amplitude that it
control voltage. In the Little Phatty, the VCA is paired with the Volume ADSR envelope generator to specify
the articulation of a sound. Another CV source for the VCA in the Little Phatty is the Volume CV Input.
the control voltage. A VCF is used to control the timbre of a sound. In the Little Phatty, the VCF is paired
with the Filter ADSR envelope generator for dynamic control. Other CV sources for the VCF include the
Keyboard Amount, Modulation Matrix and Filter CV Input.
VCO – Short for Voltage Controlled Oscillator, a VCO is an oscillator circuit where the oscillator frequency is
a function of the control voltage. In the Little Phatty, the VCO is primarily controlled from the keyboard.
Other CV sources for the VCO include the Modulation Matrix, and Pitch CV Input.
Vibrato – Technically a very low frequency modulation, vibrato is a smooth, mild pitch warble. In synthesizers,
vibrato is produced when a 5-6Hz LFO triangle or sine wave signal is applied to a voltage controlled
oscillator, causing the pitch to deviate slightly above and below the base frequency.
Page 76
LP Stage II Presets
A list of the Stage II Presets appears on the next page. Many of the preset names are self-explanatory,
some are for fun, and all are all worth auditioning. As you listen to the presets, don’t forget check out the
Mod Wheel for additional performance control.
Stage II Preset Contributors:
Steve Dunnington
Amos Gaynes
Adam Holzman
Jordan Rudess
Huston Singletary
Little Phatty Stage II User’s Manual
© Moog Music 2009, all rights reserved
Text and illustrations by Greg Kist, Cyril Lance & Amos Gaynes
Page 77
Page 78
Little Phatty Stage II Presets
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement