User Manual - Analogue Haven
Contents
1. K4815 Pattern Generator oe MOTION TYPE CLOCK SPEED OUTPUT OFFSET MOTION LENGTH CLOCK Q amp ol A INT 4 FWD AMAJ ALARGE a CV GATE v EXT REV Y MIN SMALL YX Y gt 4 m wa Q CLOCK DIR RESET cv x GATEN 3 IN IN IN OUT OUT f a pe Kilpatrick Audio Hardware Version D Firmware Version 1 1 User Manual August 5 2010 Kilpatrick Audio Ca K4815 Pattern Generator 2p Introduction Welcome to the wonderful world of the K4815 Pattern Generator The K4815 is a unique and flexible way of generating notes rhythms and modulation voltages or control changes The user interacts with the machine to set the patterns using an unconventional method which works well to find new grooves and musical inspiration It is a perfect performance tool a source of notes for jamming or a way to creating voltages synchronized to a common clock This manual will explain the features and operation of the unit Please check for updates to the documentation and firmware often as new features may be added at users request We continually strive to advance our products for your benefit and enjoyment Features e Eurorack form factor with 20HP width e Musical note control and clock signals generated using unique methods e 64 LED 8x8 multi brightness grid to show patterns and status e Clock control via internal clock o2. Output Voltage Trim When TEST mode is active the CV and GATE outputs will generate 1 000V Measure the voltage with a voltmeter Adjust the pot for each output until you read exactly 1 000V Notes should play perfectly in tune across the entire range If this is not so adjust the voltage to be higher larger scale span or lower smaller scale span until you arrive at the correct setting Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio Ca K4815 Pattern Generator 5p Physical Installation You should install the unit in your modular system using all four screw holes The unit is designed to be mounted properly to avoid damage to the internal parts when plugging or unplugging cables or adjusting the controls Connection Warnings The CLOCK IN DIR IN and RESET IN are designed for OV off and 5 10V on Any voltage over approx 2V should enable each input The inputs are tolerant ver D and later only of any voltage from 12V to 12V so you can safely input LFOs and other AC signals The CV X and GATE Y outputs are analog outputs driven by amplifiers They have a low output impedance and thus should not be driven by external sources Please use them as outputs only and mix them using proper buffered mixing circuits and not by passive multiples or Y cords They are short circuit protected but may be damaged by the external input of voltages Do no
3. Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio K4815 Pattern Generator 11p MOTION TYPE Control The MOTION TYPE control affects how the playback ball moves around on the display Each motion type can have up to 64 steps Each of these steps can land on any position on the grid and positions can be visited twice so quite complex motions are possible not just sequential patterns There are 64 motion types which are selected by using the MOTION TYPE control Pressing on the control resets the motion playback position to the first step When you change motion types the selected motion is shown on the display briefly in the form of two intersecting lines The horizontal line represents the row and the vertical line represents the motion number from 1 8 along that row This allows all 64 motions to be shown by the intersection of two lines on the grid The MOTION TYPE can also be set via MIDI program change Patches 1 64 select the 64 motions available from the front panel of the machine Patches 65 128 select the same patches but in key trigger mode meaning that the motion will only play when MIDI note messages are received keys pressed on a MIDI keyboard This allows the machine to work as an auto arpeggiator There are some special motion types which are not pre programmed but instead are set randomly These allow either continually changing random mot
4. C 5V with a 10K resistor Support and Additional Information Please contact Kilpatrick Audio with additional questions about the K1600 MIDI Converter We will do our best to help you make the most of your MIDI converter and welcome your suggestions as to software improvements or ideas for features on new products Contact info akilpatrickaudio com Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio C a K4815 Pattern Generator 16p K4815 Pattern Generator MIDI IMPLEMENTATION CHART ver 1 0 2010 05 14 Function Transmitted Recognized Remarks Basic Default 1 default 1 default Use TEST mode to set Channel Changed 1 16 configured 1 16 configured the MIDI RX channel Default X X Mode Messages X X Altered X X Note Number 0 127 0 127 Velocity After Keys O O Echoed from input Touch Ch s O O Pitch Bend O O Echoed from input Control Change 0 0 16 X output 64 DIR input 17 Y output Prog X 0 127 Upper bank has key Change True 0 63 0 63 trigger enabled System Exclusive O O During bootup for software update only System Song Position 0 0 Common Song Select X X Tune Request X X System Clock 0 0 Realtime Commands O X Aux Local On Off X X Messages All Notes Off X X Active Sensing X X System Reset X X Notes MIDI clock timeout is 5 seconds Software update specification available upon
5. a sort of auto arpeggiator MIDI Note Support When in CV GATE output mode MIDI notes corresponding to the ones being sent from the CV and gate Hardware Version D C Firmware Version 1 1 C August 5 2010 User Manual 2010 Kilpatrick Audio Ca K4815 Pattern Generator 14p outputs will be sent The note length and transposition are the same as the analog outputs Notes received by the machine from an external MIDI Keyboard will transpose the currently playing notes Middle C is treated as the default transposition Any notes higher or lower will shift the note playback by the corresponding number of semitones away from middle C When one of the patches from 65 128 are selected notes received by the K4815 will trigger the start of playback at the beginning of the motion sequence If you play legato the notes will be transposed but the motion will continue playing through to the end before repeating If you play staccato the motion will restart from the beginning for each note MIDI Controller Change While in X Y output mode instead of transmitting MIDI notes continuous controller messages will be sent Controllers 16 and 17 correspond to the X and Y values of the playback ball respectively The LARGE SMALL switch affects the size of the output and the MAJ MIN affects the polarity of the output voltages When MIDI controller 64 damper pedal is received the current playback direction is reversed just as w
6. an opposite voltage output Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio Ca K4815 Pattern Generator 9p Major Scale The major scale spans from C to C without any output offset applied Notes are mapped from left to right on each row Every column has the same notes but different octaves depending on the setting on the LARGE SMALL switch Minor Scale The minor scale spans from C to C without any output offset applied The natural minor is used flattened third natural 6th and 7th Every column has the same notes but different octaves depending on the setting on the LARGE SMALL switch Large Span In the large span mode four octaves are used These go from low on the top row to high in the fourth row The scales then repeat on the lower half of the grid Small Span In the small span mode two octaves are used The lower octave is on rows 1 3 5 and 7 The higher octave is on rows 2 4 6 and 8 Scale Mapping All Modes C D E F G A B C C D E F G A B C C D E F G A B C C D E F G A B C C D E F G A B C C D E F G A B C C D E F G A B C C D E F G A B C Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio K4815 Pattern Generator 10p OUTPUT OFFSET Control In CV GATE mode the OUTPUT OFFSET control affects the
7. test pin which places the machine in test mode when jumpered to ground You can access the MIDI signals via a compatible Kilpatrick Audio MIDI module or by building your own MIDI interface to attach to the 10 pin connector Since power is supplied you can use a single cable to connect a simple MIDI interface with no main power supply connection required Note that the signals on the MIDI header are 5V TTL signals and cannot be interfaced directly to MIDI cables without some simple circuitry Please see the Kilpatrick Audio website for free information about building your own MIDI interface MIDI Clock Support By sending MIDI clock to the machine while it is in external clock mode it is possible to synchronize the machine to an external MIDI sequencer or other clock source The input Is divided by the CLOCK SPEED control just as with an analog clock input When running in any clock mode MIDI clock is sent to the MIDI output This means that the machine can be used as a MIDI clock generator internal clock or an analog to MIDI clock converter MIDI Program Change The 64 motion types can be selected by a MIDI program change command received by the machine Programs 1 64 correspond to the 64 patterns selectable by the MOTION TYPE control Programs 65 128 correspond to the same 64 patterns except that keyboard trigger mode is enabled Keyboard trigger mode allows the playback of a motion to be started when a key Is pressed to use the K4815 as
8. 4 Sequential zig zag up down and from left to right 5 Jumping from the start 6 Crazier jumping from the start 7 Spiral 8 Diagonal zig zag from bottom left corner 9 Skipping zig zag from bottom right corner 10 Up and down triads 11 Octave jumping 5ths 12 Octave jumping wiggly worm 13 Octave jumping rows of four 14 Wiggles in different directions 15 Preset scatter 1 16 Preset scatter 2 17 Preset scatter 3 18 Ping pong horizontal mirror reflection 19 Cat 20 Hanon 21 Diagonal zig zag from bottom right corner 22 Diagonal zig zag ping pong from bottom right corner 23 X circle 24 Stars 25 Ropes and knots 26 Squares of different sizes 27 Hurricane shape 28 C E G Triad 29 D F A Triad 30 C E G B Triad 31 D F A C Triad 32 C E G C Triads Up Down 33 E C C G Triads 34 F D A Triads 35 The Sound of Five 36 Slither 37 Mini Slither 38 Mini Slither 2 39 Crossing Over 40 Groove 1 41 Groove 2 42 Groove 3 43 Groove 4 44 Groove 5 45 Groove 6 46 Groove 7 47 Groove 8 48 Groove 9 49 Seeded Random Seconds 50 Seeded Random Thirds 51 Seeded Random Fifths 52 Seeded Random Row 1 53 Seeded Random Rows 1 and 2 54 Seeded Random 1 2 3 and 4 55 Seeded Random 1 2 5 and 6 56 Seeded Random All Notes 57 Totally Random Seconds 58 Totally Random Thirds 59 Totall
9. 4 internal counts to prevent jumpy behaviour When external clocks are input either by MIDI or by the analog clock input MIDI clock pulses are transmitted on the internal MIDI header In this way you can convert analog clock signals to MIDI signals Note Using MIDI and analog clock at the same time may produce undesired results To prevent stuck notes in the case of external clock loss playing notes are automatically killed if no clock signals are received for 5 seconds This means that extremely slow tempos of less than 0 5bpm are not supported You might require caffeine if this is the tempo of your piece Using Internal Clock When using the internal clock mode the CLOCK SPEED pot sets the tempo In this mode the pattern always advances four steps per beat 16th notes The tempo generated by the internal clock can range from approx 19 to 400bpm When using the internal clock mode MIDI clock is automatically transmitted If the CLOCK SPEED pot is turned all the way down the clock will be stopped Clock LED The clock LED will pulse for a short time at the beginning of every beat every 24 clock ticks GATE TIME Control When notes are played the GATE TIME control affects how long the notes will play When in the minimum setting the note will play for 1 internal clock tick At the maximum setting the note can play for more than two full beats Note that this control scales automatically with the tempo Some Hardware Version
10. D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio Ca K4815 Pattern Generator 8p synthesizer patches might be barely audible if the gate time is short and the tempo Is high FWD REV Control and DIR Input While any motion is playing the direction can be reversed by adjusting the FWD REV switch It can also be reversed by an external voltage If 5V or greater is placed on the DIR IN jack the current direction of the pattern will be reversed The direction can also be changed by using the MIDI CC 64 damper pedal When the damper is pressed down the direction will be reversed RESET Control and Input You can reset the playback position of a motion at any time by pressing on the MOTION TYPE knob You can also reset the playback position by inputting a 5V or greater signal on the RESET IN jack Note that the position is reset only once each time the knob is pressed or the RESET IN input goes high This works even when the clock is stopped The next note to play after resetting when the clock resumes will be the first note in the pattern This is similar to the reset to 16th note on some sequencers however in this case the effect is the same without requiring any special settings Output Mode via the CV GATE X Y Switch Normally the CV GATE X Y switch is in the CV GATE mode up In this mode notes are generated as CV and GATE on the output jacks and MIDI note messages ar
11. K1600 In this case also observe the correct pinout Warning DO NOT plug the MIDI cable into the power port or vice versa Hardware Version D C Firmware Version 1 1 C August 5 2010 User Manual 2010 Kilpatrick Audio Ca K4815 Pattern Generator 4p Output Voltage Trim The voltage trim on the outputs is factory calibrated into a 100K ohm load But depending on your setup you might need to adjust it if the scale tuning is wrong with your oscillators The multi turn trim pot supplied on each output can adjust the tuning over a significant range To trim the outputs it is required to place a jumper on the MIDI header temporarily to make the unit enter TEST mode Some MIDI Converters such as the K1600 have a way to turn on the TEST mode However this mode can be enabled by placing a jumper supplied across pins 3 and 5 on the MIDI port as shown below When in TEST mode the display will show a T on the foreground of the screen to warn you that TEST mode is active Test Jumper Place a jumper over pins 3 and 5 ships with jumper across pins 1 and 3 to activate TEST mode CV X and GATE Y outputs will produce 1 000V for testing Place the jumper across pins 1 and 3 when not in use Test Jumper Output Voltage Trim Adjust the output voltage trim with a small flat screwdriver to achieve the correct scale span with your VCO R32 CV X trim R33 GATE Y trim
12. e sent on the MIDI bus In the X Y mode down the CV and GATE jacks output signals which are related to the absolute playback ball position on LED matrix This can be used for modulation or other uses varying voltages The X output sends the horizontal position and the Y output sends the vertical position The MIDI output sends continuous controller CC messages for the X and Y positions also These are shown in the MIDI Implementation section of the manual Note that the outputs in X Y mode are stepped and if you want continually varying voltages you will need to pass them through a glide processor MAJ MIN and LARGE SMALL Switches The underlying notes which are used for playback are selected with the MAJ MIN and LARGE SMALL switches As the melodic and rhythmic patterns are based on a wide variety of patterns and motions the underlying notes are kept purposefully simple The MAJ MIN switch chooses major up or minor down scales The minor scale used is the natural minor The LARGE SMALL switch affects how many octaves are mapped onto the grid In the small mode down there are two octaves In the large mode up there are four octaves In the X Y output mode the LARGE SMALL control affects the size of the output signal Either small down or large up range of control Experiment with the outputs on either analog or MIDI to see how this affects your other equipment The MAJ MIN switch inverts both the X and Y signals in case you wish to have
13. f the different possibilities The next section will cover each control in more detail as well as a more overall discussion of how the K4815 makes patterns based on the settings that you have selected Hardware Version D C Firmware Version 1 1 C August 5 2010 User Manual 2010 Kilpatrick Audio CO CD K4815 Pattern Generator 6p Pattern Generation Concept PATTERN SCALE The pattern generator concept employed in the K4815 Is one that can be thought of as three separate layers of control The layers are as follows Scale The scale is the very lowest layer The notes mapped to each location on the 8x8 grid are set by the chosen scale Where in most sequencers the notes are assigned by the user the K4815 fixes the notes to the grid locations You can choose either major or minor tonality as well as large or small scale span This may seem like a limitation but it s not as you will soon see The scale mappings are shown below Pattern Type The pattern is set with the PATTERN TYPE control and is shown on the background of the LED grid at all times It defines which notes on the grid will play as the playback ball moves around the display If a note Is Lit it will play The pattern defines the overall sound of playback and can also affect how sparse or dense the pattern is Motion Type The motion is set with the MOTION TYPE control The motion type defines how the playback ball will move aro
14. ions or random motions which are seeded each time the motion is selected so that repetition of the motion is possible Preset Motions Preset motions are available from patches 1 48 These are hand generated by several collaborators and contain simple linear motions as well as more complex motions Motions are up to 64 steps long but some are less than this based on the particular design concept Some are visually designed and others are musically designed taking into account the underlying scale notes to create melodic and arpeggiating patterns Random Motions In addition to the 48 preset motions there are also 16 random motion types in locations 49 64 These are algorithmically created in real time using a pseudo random number generator There are two random motion types with up to eight variations possible for each See the list below for the variation types e Seeded Random All 64 possible steps are seeded with random values once Subsequent playback causes the same motion to be repeated e Totally Random Each motion step is generated new every time This creates a constantly changing random sequence Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio O Motion List K4815 Pattern Generator 12p 1 Sequential left to right and top to bottom 2 Sequential top to bottom and left to right 3 Sequential zig zag left right from top to bottom
15. ith the analog DIR input MIDI SYSEX Messages A series of SYSEX messages are used for software updating and loading new motions patterns and scales Currently this requires software from Kilpatrick Audio and will be sent to owners of the K4815 who request additional or different features or require bug fixes Please contact Kilpatrick Audio for more information if you would like to experiment with this feature Hardware Version D C Firmware Version 1 1 C August 5 2010 User Manual 2010 Kilpatrick Audio a K4815 Pattern Generator 15p Internal Connector Pinouts To assist in making correct connections and to aid in the creation of compatible adaptor circuits the internal pin headers are documented here Please note that X8 is a factory setup connector only and should not be used Both X6 and X7 connectors are 0 100 pitch pin headers Standard IDC ribbon cables can be connected X7 MIDI Test Connector X6 Power X7 10 O 0 7 1 GND 1 12V input 8 jo O15 2 GND 2 12V input AE 3 GND 3 GND 2 oo 1 4 GND 4 GND MIDI TEST 5 TEST ground to activate 5 GND 6 MIDI RX input 6 GND 7 N C 7 GND 8 MIDI TX output 8 GND 9 5V output 100mA max 9 12V input 10 5V output 100mA max 10 12V input 11 5V input Notes 12 5V input e MIDI RX and TX use 5V TTL signal 13 N C levels External MIDI interface 14 N C circuitry is required 15 N C e MIDI RX is internally terminated to 16 N
16. r external MIDI or analog clock e Clock Direction and Reset inputs 0V 5V off on e CV GATE or X Y analog outputs 5V to 5V range e CVis 1V octave 10 octave range e GATE is OV or 5V e X Y outputs are 2 5V to 2 5V can be shifted beyond this range e Internal MIDI header compatible with other Kilpatrick Audio MIDI modules e MIDI implementation with send receive capability for full MIDI integration e Only 30mm deep including ribbon cables e Requires 12V less than 10mA and 5V less than 65mA 16 pin Doepfer style power connection required included Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio Ca K4815 Pattern Generator 3p Installation and Setup The K4815 Pattern Generator supports both MIDI and control voltage gate clock signals To use the MIDI function requires the use of a MIDI adaptor such as the K1600 MIDI Converter But the K4815 can be used by itself without any MIDI devices by using the analog inputs and outputs When installing the K4815 in your modular system pay close attention to the pinout and direction of the 16 pin power input cable As 5V is required the 10 pin style of power cable is not compatible If the cable is backwards or offset your K4815 may be damaged This is not covered by the warranty If you are using the module with the K1600 or similar MIDI Converter attach the 10 pin ribbon cable supplied with the
17. request Implemented by Kilpatrick Audio update software as supplied to customers Hardware Version D C Firmware Version 1 1 C August 5 2010 User Manual 2010 Kilpatrick Audio
18. t short the outputs or connect them to any other source of voltage First Use Connect the CV and gate outputs to a VCO CV input and an envelope generator gate input and let s make some sound The K4815 has a built in clock generator so you can create patterns without any external clock source Flip the INT EXT switch up to use the internal clock mode If no external clock is supplied the CLOCK INT EXT switch acts as a start stop control The CLOCK SPEED control affects the tempo when in Internal clock mode The CLOCK LED pulsates once per beat Note that in internal clock mode the notes operate at 4x the clock rate 16th notes In the external mode this is adjustable as you will see later Make sure the CV GATE X Y switch is up CV GATE mode Choose a motion type by turning the MOTION TYPE knob This selects the motion of the playback ball Turn up the MOTION LENGTH knob to maximum to play every step in the motion sequence Adjust the pattern type with the PATTERN TYPE knob to select where notes will play You should hear notes being generated as the playback ball lands on active notes on the grid Using the MAJ MIN and LARGE SMALL switches you can choose from major or minor tonalities as well as large and small output spans The GATE TIME knob affects how long each note plays and the MOTION LENGTH knob affects how many of the up to 64 steps in each motion sequence will play before repeating Play around with the controls and hear some o
19. transposition of the note outputs on CV and MIDI You can shift the notes up or down by semitones A full 10 octave range is possible In X Y mode the OUTPUT OFFSET control affects the DC offset of the X and Y signals You can use this control to get the varying signal into the right range for your equipment The span of the X Y output is 2 5V to 2 5V so you can shift this up and down This control does not affect the MIDI CC outputs of the X Y signal which always outputs the full 7 bit MIDI controller value range PATTERN TYPE Control The PATTERN TYPE control selects from one of 32 internal patterns which display on the background of the LED matrix and determine which of the underlying scale notes will play when the playback ball lands on them There is a range of geometric and other special patterns to choose from all of which provide different kinds of notes and rhythms depending on the motion type used There is also a pattern with every note enabled which may be useful for testing and hearing different motion patterns and scales in their entirety Kilpatrick Centre Squares Widget Second Aid Four Square Smiley Shift Right Arrow Slope Black Tie Event Target Practice Layout Stackup Plan View prrs oe et Le a 00000000 00000000 00000000 Sakura One Two Three Pancake Caution Vertical Lines Vertical Lines 2 e e e o Q Vertical Lines 3 Vertical Lines 4 Alternating Feeling Square Checkers Invaders LOVE Everything
20. und the grid during playback A motion contains up to 64 steps each of which can move to any position on the 8x8 grid If the ball lands on a grid location which is Lit by the pattern the underlying scale note will play otherwise the previous note will keep playing depending on the GATE TIME setting The combination of settings for the motion type and pattern type offers an incredible array of rhythmic and melodic sequences Hardware Version D C Firmware Version 1 1 C August 5 2010 User Manual 2010 Kilpatrick Audio K4815 Pattern Generator 7p Advanced Operation To provide more in depth detail of the controls and how to make the most of the machine this section goes into detail on each aspect of the system Internal Clocking and Timing Using External Clock The machine uses a 24ppq internal timebase The clock can be supplied by MIDI timing ticks by an analog 5V or greater clock input signal or by the internal clock generator The analog clock triggers on the rising edge and can support clock rates up to approx 100pps 250bpm Each clock pulse input accounts for 1 24th of a beat When using external clock mode you can adjust how many clock pulses are required to advance the pattern one step These are set by the CLOCK SPEED pot and range from 1 24 pulses per step The supported divisions allow 1 2 3 4 6 8 12 or 24 notes per beat 24 ticks The division is only changed at the end of a beat 2
21. y Random Fifths 60 Totally Random Row 1 61 Totally Random Rows 1 and 2 62 Totally Random 1 2 3 and 4 63 Totally Random 1 2 5 and 6 64 Totally Random All Notes MOTION LENGTH Control Each motion type can have up to 64 steps But it can sound interesting to play fewer steps By turning down the MOTION LENGTH control you can play from 1 64 of the total steps in the motion The motions will repeat once the end of the motion or the current length setting is reached Hardware Version D Firmware Version 1 1 C User Manual August 5 2010 C 2010 Kilpatrick Audio a K4815 Pattern Generator 13p MIDI Implementation In addition to analog interfaces available from the front panel the K4815 fully supports MIDI and provides a number of useful functions that are not available on the front panel It also provides a useful MIDI clock output which can be used as either a stand alone MIDI clock generator or as an analog 5V clock to MIDI converter It also provides clock input via MIDI clock which can be used instead of the analog clock input Control change and note outputs are supported as well as note and controller input for transposing the pattern using key trigger playback mode and reversing the direction of playback MIDI Hardware Interface On the back of the K4815 PCB is a 10 pin header labelled as MIDI TEST It contains MIDI TX and RX signals 5V output as well as a
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