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KRM KRM-100, User Manual

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KRM 

[KRM-100] MIDI-CV-Arpeggiator

1.2 Arpeggiator, Mini Sequencer, and LFO MIDI Sync

When synced to MIDI beat clock, the speed control for the arpeggiator and mini 
sequencer (MIDI CC 19), and LFO (MIDI CC 16), select from the following 
quantizations:

MIDI Beat Clock Sync

4 Whole Notes

3 Whole Notes

2 Whole Notes

Whole Note

Half Note

Half Note Triplet

Quarter Note

Quarter Note Triplet

Eighth Note

Eighth Note Triplet

Sixteenth Note

Sixteenth Note Triplet

Thirty-second Note

Thirty-second Note Triplet

1.3 LFO Waveshapes

The LFO waveshape control (MIDI CC 17) selects from the following:

LFO Waveshapes

Triangle
Sawtooth

Inverted Sawtooth

Square (50% Pulse)

40% Pulse

30% Pulse

20% Pulse

10% Pulse

Random

1.4 Using The Arpeggiator

•

Start the arpeggiator (MIDI toggle button CC 85).

•

Play a chord, and keep the notes depressed.

•

Change the arpeggiator pattern with MIDI Program Change messages (patch 
change messages).  The Up and Down buttons on the module will also cycle 
through the arpeggiator patterns and octave repeats, respectively.

•

The sustain pedal (CC 64) will latch the notes into the arpeggiator, which 
will keep playing even if you release all notes on the keyboard.

•

Stop the arpeggiator (MIDI toggle button CC 85) to return to normal playing. 
The red Config button on the module will also stop the arpeggiator.

1 Quick Setup Instructions

Page 3

Summary of Contents for KRM-100

Page 1: ... KRM 100 MIDI CV Arpeggiator 2016 12 02 Manual v1 7 Hardware v1 1 Firmware v1 08 ...

Page 2: ...Adjustment 10 6 Alternate Tuning Mode 11 6 1 12 Tone Equal Temperament 11 6 2 Any Equal Division of the Octave from 2 EDO to 60 EDO 11 6 3 User Defined Tuning Table Any Arbitrary Scale 11 7 Resetting the KRM 100 to the Factory Defaults 12 8 Setting The Gate Output To 12 Volts 12 Appendix A Technical Specifications 13 Appendix B Configuration Update Via SysEx 14 Appendix C Mini Sequencer Recording ...

Page 3: ...ck in addition to the CV and GATE jacks 1 1 MIDI Controllable Features The various features of the KRM 100 are controlled with the following MIDI control messages knobs and buttons Feature MIDI Control Notes Arpeggiator On Of CC 85 Toggle Button Start or stop the arpeggiator Arpeggiator Latch On Of CC 64 Sustain Pedal Notes played while the sustain pedal is depressed will latch into the arpeggiato...

Page 4: ...e the phase start point of the built in LFO LFO Key Sync On Of CC 81 Toggle Button Restart the LFO waveshape on every key press LFO clock source Internal MIDI CC 82 or 83 Toggle Button Select internal clock or MIDI sync Mod Control CC 1 Modulation Wheel Modulation wheel Mod Range CC 15 Rotary Change the maximum range of the modulation depth 1 to 12 semitones Mod Mapping pitch aux CV CC 80 Toggle B...

Page 5: ...om the following LFO Waveshapes Triangle Sawtooth Inverted Sawtooth Square 50 Pulse 40 Pulse 30 Pulse 20 Pulse 10 Pulse Random 1 4 Using The Arpeggiator Start the arpeggiator MIDI toggle button CC 85 Play a chord and keep the notes depressed Change the arpeggiator pattern with MIDI Program Change messages patch change messages The Up and Down buttons on the module will also cycle through the arpeg...

Page 6: ...cer inside of the arpeggiator that can store up to 32 notes or rests including velocity or the Aux CC channel Start the arpeggiator MIDI toggle button CC 85 Enable mini sequencer recording MIDI toggle button CC 86 Play notes one at a time step sequencer fashion Press the sustain pedal to insert a rest The Down button on the module will also insert a rest The display will show how many notes and re...

Page 7: ... W4 4 Whole Notes W3 3 Whole Notes W2 2 Whole Notes W1 Whole Note 2 Half Note 2T Half Note Triplet 4 Quarter Note 4T Quarter Note Triplet 8 Eighth Note 8T Eighth Note Triplet 16 Sixteenth Note 16T Sixteenth Note Triplet 32 Thirty second Note 32T Thirty second Note Triplet The speed of the arpeggiator and LFO are also shown as an animated loop The downbeat of the arpeggiator will be shown as 1 in t...

Page 8: ...ping to PTCH CV pitch or AUX CV ARP GATE Arpeggiator gate time as a percent ARP LTCH Arpeggiator note latch ON or OFF SUSTAIN Sustain pedal ON or OFF PORTMNTO Portamento time and type constant RATE or constant TIME MOD RNG SEMI Maximum modulation range in semitones PW RNG SEMI Maximum pitch wheel range in semitones SEQ REC NOTE Indicates the current step number for the mini sequencer SEQ FULL Indi...

Page 9: ...wn for 2 seconds The character will appear indicating the Edit mode Scroll through the list of values with the Up and Down buttons Alternatively turn or press MIDI controls and the KRM 100 will automatically detect the correct MIDI CC for knobs faders etc Press the Config button to save the value and exit the Edit mode Press the Config button again to exit All configuration changes are saved in no...

Page 10: ...ue for modulation range in semitones MOD RNGE CC MIDI CC for modulation range in semitones PW RANGE SEMI Default value for pitch wheel range in semitones PW RANGE CC MIDI CC for pitch wheel range in semitones PORT ENB CC MIDI CC toggle button for portamento On Of PORT SPD CC MIDI CC for portamento speed PORT TYP Default value for portamento type constant RATE or constant TIME PORT TYP CC MIDI CC t...

Page 11: ...st keyboards START 1 older Yamaha keyboards or 88 Roland 88 keyboards BTN TYPE Select TOGGLE for newer MIDI controllers or NON TGL for older controllers that do not support toggle buttons MIDI LOW NOTE MIDI note number corresponding to 0 volts pitch CV output 3 1 Assigning Aftertouch Channel Pressure Velocity and Pitch Wheel As MIDI CC Parameters The MOD WHEL CC and AUX CV CC parameters are normal...

Page 12: ...ry default setting of the KRM 100 Assign the pitch wheel and MOD pitch range control to the same knob In most cases if you are limiting the pitch wheel range you also want to limit the MOD pitch range by the same amount Remember that the Sustain pedal and other pedals if you have them act as on of toggle switches The factory setting of the KRM 100 uses the sustain pedal as both traditional sustain...

Page 13: ... state with the character showing Press any MIDI key and keep it pressed Adjust the coarse tuning of this key by tuning the MIDI knob associated with the arpeggiator speed CC 19 Adjust the fine tuning of this key by turning the MIDI knob associated with the LFO speed CC 16 Continue for every key that you want to adjust Exit the Edit state and then exit the Configuration menu To make tuning easier ...

Page 14: ...ed in Some synthesizers like the Arp Odyssey require a higher gate voltage than the Eurorack 5 volt standard The gate output of the KRM 100 can be set to 12 volts via a jumper on the right side edge of the module WARNING Ensure that the synthesizer or modules receiving the 12 volt gate signal are compatible with this higher voltage 8 Setting The Gate Output To 12 Volts Page 12 ...

Page 15: ...peggiator Module Eurorack format 14HP 12 V 45 mA and 12 V 10 mA 5 pin DIN MIDI input and output 0 to 5 V output for pitch and aux CV 16 bit DAC 1 V oct 1 2 V oct 0 32 V oct or Hz V pitch CV response S Trig or V Trig gate 5 V or 12 V gate output Appendix A Technical Specifications Page 13 ...

Page 16: ... ignored by others By default this ID is set to 00h Sending an ID of 7Fh will be recognized by all boards regardless of their actual Device ID The ACTION byte determines whether the SysEx message is a configuration update writing to the KRM 100 a request for a configuration dump or some other action The ACTION byte must be one of the following 01h Request a configuration dump 41h Write a new confi...

Page 17: ...F7 Update the Arpeggiator Start Button CC to 04h 4 F0 00 02 0C 01 01 00 41 1E 04 F7 Update the Power on Value for the Aux CV to 7Fh 127 fully on F0 00 02 0C 01 01 00 41 06 7F F7 Enable MIDI Active Sense F0 00 02 0C 01 01 00 41 31 01 F7 Enable MIDI All Notes Of F0 00 02 0C 01 01 00 41 33 01 F7 Disable Velocity on MIDI Out and set the Default Velocity to 7Fh 127 F0 00 02 0C 01 01 00 41 29 00 F7 F0 0...

Page 18: ...range the maximum bend up or down Parameter 03h Power on Value for Pitch Wheel Range Default Value 02h 2 semitones Power on value of maximum pitch wheel range the maximum bend up or down in semitones Parameter 04h Smoothing Factor for Pitch Wheel Default Value 03h 3 Anti zipper smoothing value for PW 0 of 5 heavy smoothing Parameter 05h CC for Aux CV typically the filter Default Value 47h 74 MIDI ...

Page 19: ...al time Parameter 09h Power on Value for LFO Speed Default Value 55h 85 Power on value for the LFO speed Parameter 0Ah Unused Default Value 00h 0 Unused Parameter 0Bh CC for LFO Shape Default Value 11h 17 MIDI CC knob to control the LFO shape in real time Parameter 0Ch Power on Value for LFO Shape Default Value 00h 0 triangle Power on value for the LFO shape Parameter 0Dh CC for LFO Phase Wave Sta...

Page 20: ... for modulation control 0 of 5 heavy smoothing Parameter 11h CC for Modulation Pitch Range Default Value 0Fh 15 MIDI CC to control the modulation pitch range in real time Parameter 12h Power on Value for Modulation Pitch Range Default Value 02h 2 semitones Power on value for the modulation pitch range Note that if modulation is mapped to the Aux CV and not pitch then this value is ignored and the ...

Page 21: ... on value for the LFO key down restart mode 00h 0 will cause the LFO to loop continuously 7Fh 127 will cause the LFO to restart on every key press Parameter 17h CC for LFO MIDI Sync Internal MIDI Clock Default Value 52h 82 MIDI CC button to control the LFO MIDI sync mode in real time between the internal clock and MIDI clock Parameter 18h Power on Value for LFO MIDI Sync Internal Clock MIDI Clock ...

Page 22: ...ts the portamento mode to constant rate traditional portamento 7Fh 127 sets the portamento mode to constant time between any two notes Parameter 1Dh CC for Portamento On Of Default Value 41h 65 MIDI CC button to control turning portamento on and of in real time Parameter 1Eh CC for Arpeggiator On Of Default Value 55h 85 MIDI CC button to control turning the arpeggiator on and of in real time Param...

Page 23: ...rce Internal MIDI clock Default Value 00h 0 internal clock Power on value for the arpeggiator sync source A value of 00h 0 synchronizes to the internal clock A value of 7Fh 127 synchronizes to the MIDI clock Parameter 23h CC for Arpeggiator Gate Width Default Value 48h 72 MIDI CC knob to control the arpeggiator gate width in real time Parameter 24h MIDI Program Change Type Default Value 00h 0 butt...

Page 24: ...ters 27h to 2Ah Parameter 27h MIDI Out For Pitch Wheel Default Value 01h 1 enable PW out Power on value to enable MIDI output of the pitch wheel Set this parameter to 01h 1 to enable and 00h 0 to disable The MIDI Output Enable option parameter 26h must also be enabled for this to take efect Parameter 28h MIDI Out For Modulation Wheel Default Value 01h 1 enable MOD wheel out Power on value to enabl...

Page 25: ... represents V trig 1 represents S trig Parameter 2Ch Pitch CV Type Default Value 00h 0 1 V octave Power on value for the pitch CV type 0 represents 1 V octave 1 represents 1 2 V octave EML and Buchla 2 represents 0 32 V octave EMS and 3 represents Hz volt early Korg and Yamaha Parameter 2Dh Unused Default Value 00h 0 Unused Parameter 2Eh Key Tracking Mode Default Value 00h 0 low note priority Powe...

Page 26: ...ofset Values from 01h to 3Fh 1 to 63 represent an upward shift sharp incrementing 2 cents each value for a maximum of 126 cents Values from 7Fh to 40h 127 to 64 represent a downward shift flat incrementing 2 cents each value for a maximum of 128 cents It is not possible to set the range ofset to cause a negative pitch CV output Parameter 31h MIDI Active Sense Enable Disable Default Value 00h 0 dis...

Page 27: ...ables Aux CV inversion Parameter 37h Enable Multi trig on Gate Output Default Value 00h 0 multi trig of Enable multi trig on gate output This will re trigger the gate on every key press even if played legato not releasing any keys The value corresponds to the gate re trigger time in milliseconds from 1 to 20 ms A value of 5 ms gives the best feel for most synthesizers Parameter 38h CC for Mini Seq...

Page 28: ...er 3Ch Unused Default Value 00h 0 Unused Parameter 3Dh Unused Default Value 00h 0 Unused Parameter 3Eh Device ID Default Value 00h 0 If more that one KRM 100 module is in the same chain of MIDI devices give each of them a unique device ID Parameter 3Fh Unused Default Value 00h 0 Unused Appendix B Configuration Update Via SysEx Page 26 ...

Page 29: ...ure shown in Appendix B Configuration Update Via SysEx for parameter 41h The data format for the custom pattern is a series of 64 bytes The first 32 bytes define the MIDI note numbers in the pattern and the second 32 bytes define the MIDI note velocities To define a rest use a MIDI note number of 7Eh and velocity of 00h or an Aux CC Channel value between 00h and 7Fh All 64 bytes of the custom patt...

Page 30: ...e has a resolution of 14 bits The custom tuning table is defined as two banks of values the MSB 7 bits and LSB 7 bits There is a 14 bit value for every semitone from C to C over 5 octaves 61 semitones in total The values range from 0 corresponding to 0 volts output to 16383 corresponding to 5 volts output To program a custom tuning table follow the procedure shown in Appendix B Configuration Updat...

Page 31: ...lock Synchronization CC 19 for Arpeggiator CC 16 for LFO 0 9 4 whole notes 10 18 3 whole notes 19 27 2 whole notes 28 36 whole note 37 45 half note 46 54 half note triplet 55 63 quarter note 64 72 quarter note triplet 73 81 eighth note 82 90 eighth note triplet 91 99 sixteenth note 100 108 sixteenth note triplet 109 117 thrity second note 118 127 thirty second note triplet Appendix E MIDI Control ...

Page 32: ... 55 5 semitones 56 66 6 semitones 67 77 7 semitones 78 88 8 semitones 89 99 9 semitones 100 110 10 semitones 111 121 11 semitones 122 127 1 octave CC Value LFO Shape CC 17 to select the shape 0 13 Triangle 14 27 Sawtooth 28 41 Inverted Sawtooth 42 55 Square 56 69 40 Pulse 70 83 30 Pulse 84 97 20 Pulse 98 111 10 Pulse 111 127 Random Appendix E MIDI Control Change Information Page 30 ...

Page 33: ...O O Programmable Program Change X O System Exclusive O O System Common SPP X O 2 System Realtime Beat Clock Clock Start Clock Continue Clock Stop X X X X O O O O Aux Messages Local On Of All Notes Of All Sound Of Reset Controllers Active Sense X X X X X O O O O O 3 3 3 3 3 1 The transmit and receive channels must be the same 2 Song Position Pointer messages will reset the arpeggiator mini sequence...

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