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Table of Contents

Stage II Edition

FOREWORD from Mike Adams ...............................    4

THE BASICS
 

How to use this Manual ....................................... 

 5

 

Setup and Connections ........................................ 

 5

 

Overview and Features ........................................ 

 7

 

Signal Flow .................................................................... 

 9

 

Basic Operation .........................................................  10

THE COMPONENTS
 

A.  Oscillator Section ...............................................  11

 

B.  Filter Section .........................................................   13

 

C.  Envelope Generators Section ....................  15

 

D.  Modulation Section ..........................................  17

 

E.  Output Section ....................................................  18

 

F.  Keyboard & LH Controllers ..........................  19

 

G.  Input/Output Panel .......................................... 

20

 

H.  Interface Panel .....................................................  21

 

THE USER INTERFACE

 

 

Preset Mode ................................................................ 

23

 

 

Master Mode ...............................................................  26

 

 

 

A. Menus ....................................................    26

 

 

 

B. Advanced Presets ........................... 

35

 

 

 

C. System Exclusive .............................  41

 

 

 

D. System Utilities.................................. 

44 

THE USER INTERFACE (con’t)

Performance Sets ................................................................  50

Activating the Arpeggiator and Latch  .................... 

52

How the LP handles MIDI ............................................. 

54

APPENDICES

A – Master Mode Menu Tree ...................................... 

58

B – LFO Sync Modes  ..................................................... 

59

C – Arpeggiator Clock Source  ................................. 

60

D – The Calibration Preset  ........................................ 

61

E – Accessories  ................................................................. 

62

F – Tutorial ............................................................................. 

63

G – MIDI Implementation Chart  ............................ 

68

H – Service & Support Information ....................... 

69

I – Caring for the Little Phatty ................................... 

69

J – Using the CP-251 with the Little Phatty ....... 

70

K – Specifi cations ............................................................... 

72

GLOSSARY ...................................................................................... 

73

STAGE II PRESETS ....................................................................... 

77

Summary of Contents for Little Phatty Stage II

Page 1: ... Panel 21 THE USER INTERFACE Preset Mode 23 Master Mode 26 A Menus 26 B Advanced Presets 35 C System Exclusive 41 D System Utilities 44 THE USER INTERFACE con t Performance Sets 50 Activating the Arpeggiator and Latch 52 How the LP handles MIDI 54 APPENDICES A Master Mode MenuTree 58 B LFO Sync Modes 59 C Arpeggiator Clock Source 60 D The Calibration Preset 61 E Accessories 62 F Tutorial 63 G MIDI...

Page 2: ...r their durability and we are confident the Phatty will uphold that tradition One of the new features of the Phatty 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 Li...

Page 3: ...ogramming tip This icon indicates technical information for the advanced user or the technically curious 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 encourag...

Page 4: ...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 t...

Page 5: ...ion has controls to select the modulation Source LFOTriangle 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...

Page 6: ...rovides 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 ControlVoltage jacks provides ControlVoltage Expression Pedal inputs for Pitch Filter andVolume parameters and a keyboard Gate input to trigger the envelope generators...

Page 7: ...o the settings of the filter parameters and the Filter ADSR envelope The signal then passes to the amplifier stage where theVolume ADSR envelope shapes it Finally the signal is routed to the output section where the final level is set by the MasterVolume control 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 T...

Page 8: ...t 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 th...

Page 9: ...s 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 t...

Page 10: ...ept it reinforces the harmonics of the reset oscillator Use the Oscillator 2 Frequency control to hear this effect Depending on how it is ap plied the effect can be aggressive or warm and vocal 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 do...

Page 11: ...ed This gives the filter a character that can sound vocal buzzy or zappy depending on how it s used When the resonance is turned up past about 3 o clock on the analog edit dial the filter begins to self oscillate at the cutoff frequency producing a sine wave tone Other filter section controls include Keyboard Amount KB AMOUNT Envelope Generator Amount EGR AMNT and OVERLOAD The KB AMOUNT parameter ...

Page 12: ... 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 post glide keyboard voltage that is routed to the filter cutoff frequency When the edit control is rotated fully clockwise the filter cutoff follows the key played on the keyboard A higher key...

Page 13: ... and then slowly fades out until it is silent In synthesis terms this progression is called an envelope a shape that defines the changes that occur in a sound over time An envelope can define any 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...

Page 14: ... of the corre sponding 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 applyin...

Page 15: ...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 switc...

Page 16: ...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 hear ing the LP The output is ON when the switch is lit Headphone Jack The HEADPHONE jack is a 1 4 TRS headphone output for use with standard headphones TheVolume control adjusts the leve...

Page 17: ...on 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 ...

Page 18: ...ch as the Moogerfooger EP 2 ring 5 5 supply to the pedal tip variable CV return or a control voltage from 5 to 5Volts The KB Gate Input accepts a footswitch a momentary normally closed footswitch like the Moog FS 1 or a 5Volt Gate Signal MIDI Connectors DIN and USB These are connections for MIDI In Out MIDI I O is configurable for either connection type For more information on configuring MIDI see...

Page 19: ...d 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 e...

Page 20: ...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 ac cordingly Pressing the same switch a second time will adjust the octave again and change the illumination from amber to ...

Page 21: ... 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 Preset Mode 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 ...

Page 22: ...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 until the desired name change is complete When finished press the 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 PERFORMANC...

Page 23: ...ottom line of the LCD will display a status message indicating that theTapTempo function is active 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 If the MODULATION control knob is adjusted while inTapTempo Mode it will override theTapTempo and adjust the LFO Rate or Arpeggiator Clock to the new value T...

Page 24: ... do anything to activate that new entry If a menu contains more than one parameter for editing repeatedly press ing 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 P...

Page 25: ...ings see below To change the LFO Sync Mode use the CURSOR button to move to the selection field and use the 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 quar...

Page 26: ...ity Keyboard priority for a monophonic instrument determines what happens when more than one key is pressed A set ting 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 VA...

Page 27: ...eter 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 theTune parameter is set to AUTO the AutoTune function is engaged and the display changes as shown AutoTune works to keep the LP in tune by automatically making fine adjustments to the Fine Tuning...

Page 28: ...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 param eters 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 butto...

Page 29: ... 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 high...

Page 30: ...tton 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 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 c...

Page 31: ...re consistent between theVoyager and Little Phatty so any parameter changes such as pitch bend and mod wheel filter cutoff and so on should affect all voices simultaneously If you have two Little Phatty synths you would connect MIDI OUT from the first one to MIDI IN on the second then you would turn on MIDI MERGE on the second LP and connect its MIDI OUT to the MIDI IN on the first LP Turn off LOC...

Page 32: ...d 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 by first entering Master Mode and select the desired parameter menu using the VALUE knob then return to Preset Mode When you are r...

Page 33: ...ou 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 i...

Page 34: ...he 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 control specifies both the primary and secondary modulation amounts there is no ...

Page 35: ...C 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 ...

Page 36: ...ODULATION 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 contro...

Page 37: ...or 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 theTapTempo function ...

Page 38: ...lect the desired octave value Values 3 2 1 0 1 2 3 the default value is 1 The fifth page of the Arpeggiator menu allows you to select the order 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 pa...

Page 39: ...nob to change the latch status The default value is OFF ARPEGGIATOR Con t C SYSEX System Exclusive Menus SysEx menus are a set of commands to transmit and receive selected presets bulk dumps and firmware 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 ...

Page 40: ... button will stay lit until the data transfer is complete When the operation has finished the 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 pr...

Page 41: ...tomatically 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 ...

Page 42: ...e to the ON OFF parameter field then 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 The fifth page of the Systems Utilities menu allows you to restore the global default values performance sets and all fac...

Page 43: ... 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 The sixth page of the System Utilities menu allows you to calibrate the Little Phatty In the past calibration of an...

Page 44: ...cate the minimum middle and maximum posi tions 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 to wards 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 Whe...

Page 45: ...his 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 ...

Page 46: ... 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 no...

Page 47: ...se 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 LP first tunes itself to the base note As this happ...

Page 48: ...he first entry in Set 1 above is Preset 24 the second entry is Preset 58 and so on Performance Sets allow you to sequence up to 32 presets for your specific needs Once the Performance Sets are configured you can call up a set and step though the sequence using the VALUE switch The example on the right shows the preset stored in the first location of Performance Set 3 Preset 99 SUPERCHUNK To step t...

Page 49: ...nce to the next pa rameter 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 b...

Page 50: ...t you will need to return to PRESET Mode first and then press the VALUE encoder switch to activate the Arpeggiator Turning the Arpeggiator Latch ON OFF When the Latch function is enabled in the Arpeggiator menu and the Arpeggiator is switched ON press ing 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...

Page 51: ...mple 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...

Page 52: ...the LSB indicates the high resolution fine control value If you are only sending 7 bit MIDI CC messages to the 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 to coarse and fine clock rates The coarse rate is set by CC 04 in increments of 3 BPM over a range of 21 320 BPM and the fine rate is set by CC 36 i...

Page 53: ...00 OSC2 Oscillators 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 osc...

Page 54: ...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 36 fine 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 1...

Page 55: ...er 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 FILTERVELOCITY 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 ...

Page 56: ...es 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 57: ...aneously 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 ...

Page 58: ...the rate set byTapTempo Note that the LFO RATE panel button will continue to blink indicating thatTapTempo is still active you can tap in a new Arpeggiator Clock at any time To disengageTapTempo mode press and hold the LFO RATE button The Arpeggiator Clock will remain at the last rate you selected LFO When the Arpeggiator Clock Source is set to LFO the Arpeggiator rate is defined as one whole note...

Page 59: ...rs 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 used for tuning the LP with an external tuner Since the CA preset can be modified like any other preset it s also useful as a default starting point for preset development Note that the Calibration Pre...

Page 60: ...ise 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 TheVST Little Phatty Editor is aVST format software application that provides full...

Page 61: ...atically related overtones of the base pitch To explain what that means let s con sider 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 l...

Page 62: ... 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 inte...

Page 63: ...ed according to the filter s slope which is a measure of how well the filter works The slope of a filter is expressed in decibels per octave dB Oct The Little Phatty filter is rated at 24 dB Oct which creates a dramatic reduction in unwanted frequencies This is a highly desirable quality for subtractive synthesis Another important filter parameter is the filter resonance Resonance amplifies the fr...

Page 64: ...iggered 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 ...

Page 65: ... simple analog synth like the LP can be used for incredibly expressive sounds given solid programming and playing technique So what is the best way to configure and program these synthesis components effectively The answer could fill a book s worth of explanations and examples Two such recommended books on this subject are PowerTools for Synthesizer Programming by Jim Aiken available from Backbeat...

Page 66: ... of seven octaves With no octave transposition the transmitted range is 48 84 C3 C6 Velocity Note ON Note OFF 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 Program change True Number O 00 99 O 00 99 System Exclusive O O System Commands Song Position Song Selection Tune X X X...

Page 67: ...urance 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 Registe...

Page 68: ...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 LFOTriangle out To produceTimbral Modulation Using a 1 4 patch cable connect the CP 251 LFOTriangle output to an Attenuator Input With another 1 4 patch cable connect the Attenuator Outp...

Page 69: ... to 5 on the dial and set the Master level to 10 Adjust the Mix er 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 OffsetVoltage 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...

Page 70: ...tooth 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 Performance Controls Pitch Wheel programmable up to 12 semitones Modulation Wheel 0 to 100 FineTune 3 semitones Glide ON OFF Octave UP DOWN 2 octaves Output ON OFF MasterVolume Analog Edit Potentiometers 4 User Interface LCD Displ...

Page 71: ...lope 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 of changes by applying electrically generated envelopes to oscillators affecting pitch filters affecting tone and amplifiers affecting volume Envelope Generator A circuit that generates an...

Page 72: ...quency 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...

Page 73: ...lities 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 equivalent of a vibrating r...

Page 74: ...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 sounds muted and flutelike VCA Short forVoltage Controlled Amplifier aVCA is an amplifier circuit where the gain is a function of the control voltage In the Little Phatty theV...

Page 75: ... 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 76: ...Page 78 Little Phatty Stage II Presets ...

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