CHD Elektroservis 8-443, MP-KBD User Manual

Download

Page 1

Model 8-433

ver. 1.0

USER’S GUIDE

Page 2

MP-KBD

MIDI Interface for Mono / Poly Keyboard

Model 8-433 ver. 1.0

Table of content s

page

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1. Interface functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. Interface basic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1. MIDI Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2. Key Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3. Key Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4. Pitch Wheel Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.5. Arpeggio Clock Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3. MIDI implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1. Channel commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.1. Note On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.2. Control Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.3. Pitch Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2. Comm on syst em comman ds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2.1. Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2.2. Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3. System Exclusive messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4. Warranty conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Appendix

A. MIDI implementation chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Manufacturer :

CHD Elektroservis

Nad kundratkou 27, 19000 Praha 9

Czech Republic

[email protected]

www.chd-el.cz

Page 3

MP-KBD

MIDI Interface for Mono / Poly Keyboard

Model 8-433 ver. 1.0

1. INTRODUCTION

MP -KBD is a M IDI re trofit f or Kor g Mono / Pol y synthesizer . The device enables instrument’s tone generators to be controlled via MIDI as a MIDI expander. MP-KBD also synchronizes the arpeggiator speed with external sequencer MIDI clock.

All MP-KBD functions can be adjusted via MID I parameters. Standar d channel and system parameters or System Exclusive Messages are used. MIDI communication channel is user definable.

Setting of al l p ara meters ca n be s tor ed in in ternal us er memory . T abl e 1 s hows def ault fac tor y settings.

Table 1 – “Fac tory Reset” setti n gs of int erfac e fu nc ti ons

Function Setting Value of corresponding parameter

MIDI channel choice 13th channel MIDI Channel : 12

Keyboard shift setting +53 semitone s Key Shift : 53

Key priority setting last key priority Key Priority : 0

Pitch Wheel range setting

Arpeggiator rate setting internal generator Arpeggio Clock Rate : 0

12 semitones

Pitch Wheel Range : 12

1.1. INTERFACE FUNCTIO NS

Interface controls the keyboard in parallel manner. The instrument’s keyboard can also be used together with the M ID I notes . Interf ace can s ynchr onize the arpeg giator to external M IDI cl ock or ignore the synchronization data and use instrument’s internal clock generator. See pic. 1.

Pic. 1 – Block diagram

2. I NTERFA CE BASIC OP ERA TI O N

Ther e are no in dicator s or switch es on the inter face. All parameter s can be adjus ted only v ia MIDI commands from external M IDI data source. Default settings from internal memory are set up during each instrument start-up.

All interf ace f unction s are adjusta ble via M IDI co ntroller s or Sy sEx message s. Ther e are fiv e user adjustable parameters, described in the following chapters.

Page 4

MP-KBD

MIDI Interface for Mono / Poly Keyboard

Model 8-433 ver. 1.0

Pic. 2 –„Key Shift“ parameter description

Page 5

MP-KBD

MIDI Interface for Mono / Poly Keyboard

Model 8-433 ver. 1.0

2.1. MIDI CHANNEL

This parameter sets the basic MIDI channel for communication with MIDI master system. Any of the 16 available channels can be set as MIDI OMNI mode as well. OMNI mode enables the instru m e nt to rece i ve dat a on all 16 MIDI channe ls si m ult an e ousl y.

Par ameter valu es a re 0 to 1 6. V alue s 0 to 15 re pre sent M ID I c hann els 1 t o 16. V alue 16 is for OMNI MODE. Value of th i s parameter can be a djusted only by MIDI System Exclusive Message – se e chapt er 3. 3.

2.2. KEY SHI FT

Key Shift para meter tran sposes the keybo ard. Ra nge of the Key Shif t is 0 to +84 semit ones. W hen the 0 value is set the lowest key of the keyboard is equal to MIDI note 0 and the highest is equal to M ID I no te n umber 43. W h en trans pos ing + 1 se mitone the lowest ke y of t he k eyb oar d h as a ss igne d the M I DI n ote n umber 1 an d the hig hest n umber 44 e tc. – whe n tra nspo s ing + 84 semito nes the lo west key of the keyboard has assigned MIDI note number 84 and the highest number 127. For more details see pic. 2.

Parame te r val ues ar e 0 t o 84. The value ca n be ad j ust ed i n two wa ys: a) by MIDI controller (Control Changes) Nr. 16 – see chapter 3.1.2. b) by SysEx Message – see chapter 3.3.

2.3. KEY PRIORITY

Value of the parameter adjusts incoming MIDI Note On/Off commands processing in case of all four tone generators of the instrument are being used.

Parameter values are 0 to 3. 0 ! LAST: Last key priority – the last pressed key always replaces the first key pressed.

1 ! HIGHER : Highe r k e y pr ior ity – i f t he las t pr es sed k ey is of h ighe r ton e than any of the previo usl y

pressed keys, t he l owest key to ne is repl aced .

2 ! LOWE R: Lower key pr iority – if the las t pressed key is of lower tone than any of the prev iously

pressed keys, t he hi gh est key t one is rep lac ed .

3 ! NONE: N o priority – if all four tone generators are being used, all Note On commands are

ignored at the MIDI input.

The value can be adjusted in two ways: a) by MIDI controller (Control Changes) Nr. 17 - see chapter 3.1.2. b) by SysEx Message – see chapter 3.3.

2.4. PITCH WHEEL RANGE

Par ameter adjusts ma ximum rang e of the pitc h bend contr olled by the M IDI command ”Pitc h Wheel“ (“Pitch Bend“).

Parameter values are 0 to 24. Value 0 switches the pitch bend off. MIDI command “Pitch Wheel“ is ignored. Values 1 to 24 are equal to transposition semitones, therefore ±2 octave transposition is available.

The value can be adjusted in two ways: a) by MIDI controller (Control Changes) Nr. 18 - see chapter 3.1.2. b) by SysEx Message – see chapter 3.3.

Page 6

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

2.5. ARPEGGIO CLOCK RATE

This par ameter adj us ts a rpe ggiato r tempo . Pa rameter v alues a re 0 to 127. V alue of 0 switches instrument’s internal clock generator on. (Arpeggio speed is adjusted by the MG2 - FREQUENC Y knob on the instru ment’s panel or by external c lock impuls es for m the ARPEGGIO TRIG IN connector o n th e rear panel.)

Par ameter v al ues 1 to 12 7 sy n chr onize a rpe ggia tor s p eed ac co rdin g to inc oming “ M I DI C loc k “ data. T he highe r the v alue of the par ameter is s et, the higher ar peggiator speed is pr ovided. V alue 1 represents 127 MIDI ticks between clock pulses, value 2 represents 126 MIDI ticks, etc. The highest value of 127 represents one MIDI tick between clock pulses. For conversion rates see Table 2.

The value can be adjusted in two ways: a) by MIDI controller (Control Changes) Nr. 19 - see chapter 3.1.2. b) by SysEx Message – see chapter 3.3.

Table 2 – Conversion of parameter value to length of arpeggiator interval

Parameter

value

0 *) *) *) *) *) *) *) *) *) *) *) 1 - - - - - - - - - - 127 2 - - - - - - 21 - 42 63 126 3 - - - - - - - - - - 125 4 - - - - - - - 31 - 62 124 5 - - - - - - - - 41 - 123 6 - - - - - - - - - 61 122 7 - - - - - - - - - - 121 8 - - 5 - 10 15 20 30 40 60 120

9 - - - - - - - - - - 119 10 - - - - - - - - - 59 118 11 - - - - - - - - 39 - 117 12 - - - - - - - 29 - 58 116 13 - - - - - - - - - - 115 14 - - - - - - 19 - 38 57 114 15 - - - - - - - - - - 113 16 - - - 7 - 14 - 28 - 56 112 17 - - - - - - - - 37 - 111 18 - - - - - - - - - 55 110 19 - - - - - - - - - - 109 20 - - - - 9 - 18 27 36 54 108 21 - - - - - - - - - - 107 22 - - - - - - - - - 53 106 23 - - - - - - - - 35 - 105 24 - - - - - 13 - 26 - 52 104 25 - - - - - - - - - - 103 26 - - - - - - 17 - 34 51 102 27 - - - - - - - - - - 101

1/2

triplet

1/4

interval between clock pulses in notes

1/4

triplet

1/8

triplet

1/16

triplet

1/32

triplet

1/64

triplet

Page 7

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

Table 2 – Conversion of para met er valu e to length of arpe ggi ator interv al (con tinu ed)

Parameter

value

1/2

triplet

1/4

28 - - - - - - - 25 - 50 100 29 - - - - - - - - 33 - 99 30 - - - - - - - - - 49 98 31 - - - - - - - - - - 97 32 2 3 4 6 8 12 16 24 32 48 96 33 - - - - - - - - - - 95 34 - - - - - - - - - 47 94 35 - - - - - - - - 31 - 93 36 - - - - - - - 23 - 46 92 37 - - - - - - - - - - 91 38 - - - - - - 15 - 30 45 90 39 - - - - - - - - - - 89 40 - - - - - 11 - 22 - 44 88 41 - - - - - - - - 29 - 87 42 - - - - - - - - - 43 86 43 - - - - - - - - - - 85 44 - - - - 7 - 14 21 28 42 84 45 - - - - - - - - - - 83 46 - - - - - - - - - 41 82 47 - - - - - - - - 27 - 81 48 - - - 5 - 10 - 20 - 40 80 49 - - - - - - - - - - 79 50 - - - - - - 13 - 26 39 78 51 - - - - - - - - - - 77 52 - - - - - - - 19 - 38 76 53 - - - - - - - - 25 - 75 54 - - - - - - - - - 37 74 55 - - - - - - - - - - 73 56 - - 3 - 6 9 12 18 24 36 72 57 - - - - - - - - - - 71 58 - - - - - - - - - 35 70 59 - - - - - - - - 23 - 69 60 - - - - - - - 17 - 34 68 61 - - - - - - - - - - 67 62 - - - - - - 11 - 22 33 66 63 - - - - - - - - - - 65 64 - 2 - 4 - 8 - 16 - 32 64 65 - - - - - - - - 21 - 63 66 - - - - - - - - - 31 62 67 - - - - - - - - - - 61 68 - - - - 5 - 10 15 20 30 60

interval between clock pulses in notes

1/4

triplet

1/8

triplet

1/16

triplet

1/32

triplet

1/64

Page 8

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

Table 2 – Conversion of para met er valu e to length of arpe ggi ator interv al (con tinu ed)

Parameter

value

1/2

triplet

1/4

69 - - - - - - - - - - 59 70 - - - - - - - - - 29 58 71 - - - - - - - - 19 - 57 72 - - - - - 7 - 14 - 28 56 73 - - - - - - - - - - 55 74 - - - - - - 9 - 18 27 54 75 - - - - - - - - - - 53 76 - - - - - - - 13 - 26 52 77 - - - - - - - - 17 - 51 78 - - - - - - - - - 25 50 79 - - - - - - - - - - 49 80 1 - 2 3 4 6 8 12 16 24 48 81 - - - - - - - - - - 47 82 - - - - - - - - - 23 46 83 - - - - - - - - 15 - 45 84 - - - - - - - 11 - 22 44 85 - - - - - - - - - - 43 86 - - - - - - 7 - 14 21 42 87 - - - - - - - - - - 41 88 - - - - - 5 - 10 - 20 40 89 - - - - - - - - 13 - 39 90 - - - - - - - - - 19 38 91 - - - - - - - - - - 37 92 - - - - 3 - 6 9 12 18 36 93 - - - - - - - - - - 35 94 - - - - - - - - - 17 34 95 - - - - - - - - 11 - 33 96 - 1 - 2 - 4 - 8 - 16 32 97 - - - - - - - - - - 31 98 - - - - - - 5 - 10 15 30 99 - - - - - - - - - - 29

100 - - - - - - - 7 - 14 28 101 - - - - - - - - 9 - 27 102 - - - - - - - - - 13 26 103 - - - - - - - - - - 25 104 - - 1 - 2 3 4 6 8 12 24 105 - - - - - - - - - - 23 106 - - - - - - - - - 11 22 107 - - - - - - - - 7 - 21 108 - - - - - - - 5 - 10 20 109 - - - - - - - - - - 19

interval between clock pulses in notes

1/4

triplet

1/8

triplet

1/16

triplet

1/32

triplet

1/64

triplet

Page 9

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

Table 2 – Conversion of para met er valu e to length of arpe ggi ator interv al (con tinu ed)

Parameter

value

110 - - - - - - 3 - 6 9 18 111 - - - - - - - - - - 17 112 - - - 1 - 2 - 4 - 8 16 113 - - - - - - - - 5 - 15 114 - - - - - - - - - 7 14 115 - - - - - - - - - - 13 116 - - - - 1 - 2 3 4 6 12 117 - - - - - - - - - - 11 118 - - - - - - - - - 5 10 119 - - - - - - - - 3 - 9 120 - - - - - 1 - 2 - 4 8 121 - - - - - - - - - - 7 122 - - - - - - 1 - 2 3 6 123 - - - - - - - - - - 5 124 - - - - - - - 1 - 2 4 125 - - - - - - - - 1 - 3 126 - - - - - - - - - 1 2 127 - - - - - - - - - - 1

1/2

triplet

Note.: *) tempo of arpeggiator is controlled by internal clock generator

1/4

interval between clock pulses in notes

1/4

triplet

1/8

triplet

1/16

triplet

1/32

triplet

1/64

triplet

3. MIDI IMPLEMENTATION

Interface has only MIDI input - therefore it only receives MIDI commands. Interface r ecognizes

channel co mm a nd s, common system com m a nds a nd System Ex c lusive me ssa ges.

3.1. CHANNEL COMMANDS

Interf ace r eceive s M IDI c ommands on sel ected M IDI chan nel (par ameter "MID I Chan nel"). In

OMNI mode, interface receives data on all 16 MIDI channels simultaneously.

3.1 .1. NOTE ON/OFF

Interface receives Note On/Off on selected MIDI channel. “Key Shift“ parameter defines assign ment of M ID I n otes to in str ument’ s key s . When f ou r va lid MID I no tes are re ceiv ed (a ll f our ton e generators are sounding), all following received MIDI Note commands are processed according to „Key Priority“ parameter setting.

3.1.2. CONTROL CHANGES

Interface recognizes standard MIDI controllers Nr. 64, 120, 121, 123. Other controllers are used for adjusting temporary settings of internal parameters (controllers 16 to 19). All acceptable controllers are received on MIDI channel chosen by “MIDI Channel“ parameter.

Page 10

MP-KBD

CC 64 – Hold

The control ler wor ks in s tandard way: It hol ds tone gener ators sou nding all the time while the

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

"Hold" pedal is pr essed. Value s (sec ond databy te) 64 to 127 ar e recognized as ON (p edal pres sed), values 0 to 63 are recognized as OFF (pedal released).

If the control ler is acti ve and Not e On command for currently sounding not e is rece ived, the envelope generator is not trigged again – therefore percussive sounds are not played.

CC 120 – All Sound Off

W h en the controller is received ( s econd databyte mus t h av e value of 0) all tone generators are muted regardless whether they are kept active by "Note On" command or the "Hold" controller.

CC 121 – Reset All Controllers

W hen the c ont rolle r i s rec ei ved (the se con d d atabyt e must h av e v alue of 0) „H old“ cont roll er is switched off and „Pitch Wheel“ controller is adjusted into center position.

CC 123 – All Notes Off

W hen the c ont rolle r is rec eiv ed (the s ec on d databy te mus t hav e va lue of 0) all tone gener ato rs are muted if "Hold" c ontroller is inactiv e. If "H old" is ac tive "All N otes Of f" command is exec uted after "Hold" pedal release.

CC 16 – Key Shift

Rec eived v alue of the c ontroller (its sec ond databy te) adjusts th e “Key Sh ift“ par ameter - see pic. 3 and tab. 3. Value of the parameter is adjusted only temporarily - until next instrument restart.

Table 3 – Conversion of CC 16 value to ”Key Shift“ parameter value (in semitones)

CC Shift CC Shift CC Shift CC Shift CC Shift CC Shift CC Shift CC Shift

0 +0 16 +10 32 +21 48 +31 64 +42 80 +53 96 +63 112 +74 1 +0 17 +11 33 +21 49 +32 65 +43 81 +53 97 +64 113 +75 2 +1 18 +11 34 +22 50 +33 66 +43 82 +54 98 +65 114 +75 3 +1 19 +12 35 +23 51 +33 67 +44 83 +55 99 +65 115 +76 4 +2 20 +13 36 +23 52 +34 68 +45 84 +55 100 +66 116 +77 5 +3 21 +13 37 +24 53 +35 69 +45 85 +56 101 +67 117 +77 6 +3 22 +14 38 +25 54 +35 70 +46 86 +57 102 +67 118 +78 7 +4 23 +15 39 +25 55 +36 71 +47 87 +57 103 +68 119 +79 8 +5 24 +15 40 +26 56 +37 72 +47 88 +58 104 +69 120 +79

9 +5 25 +16 41 +27 57 +37 73 +48 89 +59 105 +69 121 +80 10 +6 26 +17 42 +27 58 +38 74 +49 90 +59 106 +70 122 +81 11 +7 27 +17 43 +28 59 +39 75 +49 91 +60 107 +71 123 +81 12 +7 28 +18 44 +29 60 +39 76 +50 92 +61 108 +71 124 +82 13 +8 29 +19 45 +29 61 +40 77 +51 93 +61 109 +72 125 +83 14 +9 30 +19 46 +30 62 +41 78 +51 94 +62 110 +73 126 +83 15 +9 31 +20 47 +31 63 +41 79 +52 95 +63 111 +73 127 +84

Page 11

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

Pic. 3 – Conversion of CC 16 value to ”Key Shift“ parameter value

CC 17 – Key Priority

Rec eived value of the c ontroller (its second databyte) ad justs the „K ey Prio rity“ par ameter -

see pic. 4 and tab. 4. Value of the parameter is adjusted only temporarily - until next instrument restart.

Table 4 – Conve rsion of CC 17 valu e to ”Key Priority“ parameter valu e

CC Priority CC Priority

0 ~ 31 Last 64 ~ 95 Low er

32 ~ 63 Higher 96 ~ 127 None

Pic. 4 – Conversion of CC 17 value to ”Key Priority“ parameter value

CC 18 – Pitch Wheel Range

Received value of the controller (its second databyte) adjusts the “Pitch Wheel Range“ parameter - see pic. 5 and tab. 5. Value of the parameter is adjusted only temporarily - until next instrument re sta rt.

Page 12

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

Table 5 – Conversion of CC 18 value to ”Pitch Wheel Range“ parameter value (in semitones)

CC Range CC Range CC Range CC Range CC Range 0 ~ 4 5 ~ 9

10 ~ 14 15 ~ 19 20 ~ 24

± ± ±2 ± ±4

25 ~ 29

30 ~ 34

35 ~ 39 40 ~ 44

45 ~ 49

± ± ±7 ± ±9

50 ~ 54

55 ~ 59

60 ~ 64 65 ~ 69

70 ~ 74

± ±12

± ±14

75 ~ 79 80 ~ 84 85 ~ 89 90 ~ 94 95 ~ 99

± ±17

± ±19

100 ~ 104 105 ~ 109 110 ~ 114 115 ~ 119 120 ~ 127

± ± ±22 ± ±24

Pic. 5 – Conversion of CC 18 value to ”Pitch Wheel Range“ parameter value

20 21

CC 19 – Arpeggio Cloc k Rate

Received value of the controller (its second databyte) adjusts the “Arpg Clock Rate“

parameter. Value of the parameter is adjusted only temporarily - until next instrument restart.

3.1.3. PITCH WHEEL (PITCH BEND)

“Pitc h Wheel “ (“ P itc h B end“ ) ha s s tandar d f u nc tion – it c hange s t he tun e of pla yed no tes. T h e

minimum / maximum range is adjusted by the „Pitch Wheel Range“ parameter ( ±0 to ±24 semitones).

Since the inter fa ce does not hav e d ire ct a cc ess to c ont rol volta ge ( C V) of ton e g ener ator s, the tone is no t detun ed con tin uous ly but i n se mitone steps . T oge ther with note tun e c hang es t he en v elope generators are triggered.

3.2. COMMON SYSTEM COMMANDS

3.2.1. CLOCK

If “A rp g Clock R ate“ pa rameter is e qual t o 0, MIDI cl ock co mmands are ignor ed. Fo r valu es of “Arpg Clock Rate“ higher than 0, interface receives synchronization impulses of MID I C lock (status byte F8h) for arpeggiator tempo (see chapter 2.5.).

Page 13

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

Maximum arpeggiator tempo is limited by the instrument’s hardware. W hen extremely high speeds of M IDI Cloc k and song temp o are used, th e arpeggiator can play ou t of the tempo or omit several notes.

3.2.2. RESET

Complete interface reset is done after receiving “Reset“ command (status byte FFh) – all parameters are set to their default values stored in internal memory.

3.3. SYSTEM E XCLUSIVE MESSAGES

System Exclusive communication enables the user to adjust values of all interface parameters. System Exclusive Message st r ucture i s always as follows:

F0h Start SysEx 00h 20h 21h Manufacturer ID ii Device ID 57h Model ID aa Address dd…dd Data xx Checksum F7h End SysEx

The description of values is as follows: ii : Identification number of the interface – same as the ac tual number of th e MID I channel (0 0h t o 0F h)

or universal ID (7Fh).

aa : Parameter number. Allowed address range is 00h to 05h :

00h = MIDI Channel – receiving MIDI channel 01h = Ke y S hift – keybo ard tr anspo se 02h = Ke y P r i o rity – key priority parameter 03h = Pi tch W h ee l Range – Pitch bend range 04h = Arpeggi o Clock Rate – clock so urce sel ect io n for th e arp egg iat or 05h = All – change of all pa rameters in int ern al m e m ory For addresses aa = 00h to 04h, value of one parameter is changed only temporar ily – new value is valid until next change is done or the instrument is turned off. For ad dress aa = 05h, values of all parameter s are c hanged permanently , new values are stored in internal memory.

dd…dd : New value of the parameter(s)

For addresses aa = 00h to 04h, datablock includes only one byte with value of parameter. For address aa = 05h , datablock includes bl ock of f ive bytes with values of all parameter s (in order: MIDI Channel, Key Shi ft, Key Priority, Pi tch Wheel Range, Arpeggio Clock Rate).

xx : Checksu m – seve n- bit sum of the Model I D to Checksum bytes must be equal to z ero. For the dd data-byte:

aa = 00h ! dd = 00h ~ 1 0h, va lue 00h t o 0F h rep res ents M ID I c ha nnel n umber 1 to 16, value 10h

for OMNI

aa = 01h ! dd = 00h ~ 54h, value sets keyboard transposition in semitones +0 to +84 aa = 02h ! dd = 00h ~ 0 3h, va lue 00h s e ts pr ior ity “ La st“ , val ue 0 1h s ets “Higher “, v al ue 02h sets

“Lower“ and value 03h sets no priority “None“ mode

aa = 03h ! dd = 00h ~ 18h, value adjusts maximum pitch bend range ±0 to ±24 semi t one s

Page 14

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

aa = 04h ! dd = 00h ~ 7Fh, value 00h selec ts internal cloc k generator of the instru ment, valu es

01h to 7Fh adjust speed for external MIDI Clock control

aa = 05h ! dd…dd is block of five databytes with values described above Example 1.: Temporary change of MIDI channel to channel Nr. 1

Start SysE x F0h Manufacturer ID 00h 20h 21h Device ID 7Fh (universal ID) Model ID 57h Address 00h (parameter “MIDI Channel“) Data 00h (1

channel) Checksum 29h (57h+00h+00h+29h = 00h) End SysEx F7h

Exam ple 2.: Perman ent change of all par ameters to value s - M IDI C hannel = OM NI, Key Shif t = 41, Key Prior ity = NONE, Pi tch Wheel Range = ±24 semitones, A r peggio Clock Rate = 1/32

Start SysE x F0h Manufacturer ID 00h 20h 21h Device ID 7Fh (universal ID) Model ID 57h Address 05h (all parameters) Data 10h 29h 03h 18h 7Dh (values listed above) Checksum 53h (57h+05h+10h+29h+03h+18h+7Dh+53h = 00h) End SysEx F7h

For ea sier SysEx M essage creation please use t he software ge nerator av ailable on enclose d

CD-ROM or at “http://www.chd-el.cz”.

Cak ewalk ™ or Sonar ™ users c an use pre -defined S tudio Wa re Pan el fo r eas ier operation,

available on enclosed CD-ROM.

4. W ARRA NTY CONDI TIONS

Equipment comes with thirty-m onth warranty star ting from the date of equipment take-o ver by

the customer. This date must be specified on warranty list together with dealer's confirmation.

During this period of time, all defects of equipment or its accessories, caused by defective

material or faulty manufacturing, will be removed free of charge.

Warranty repair is asserted by the customer against the dealer. W arranty per iod is to be exte nded for t he time period, du ring which the product was under the

warranty repair.

Relevant leg al re gul at io ns t ake effect in ca se of cance ll at io n of purch ase cont ra ct. Customer will los e the right for f ree warranty r epair, if he will not be able to submit properly fille d

out warranty list or if the defects of the product had been caused by:

- unavoidable e vent (na tural disaster),

- connecting th e de vice to i ncorre ct suppl y volt ag e ,

- inputs o r o utputs ove rl oadin g b y c on necti ng th e sig na ls sour ce or load so urce with not-cor re spo ndin g charact eristics et c.,

- faulty equipment operation, which is in conflict with instructions referred-to in the operating manual,

- mechanical damage caused by customer during transportation or usage of equipment,

- unprof essiona l interfe rence with the equip ment or by equipme nt modif ication without manufactur er’s approval.

Page 15

MP-KBD

MIDI Interface for Mono / Poly Keyboa rd

Model 8-433 ver. 1.0

APPENDIX A . MIDI IMPLEMENTATI ON CHART

Device : MP-KBD Date : 5 / 2008 Model : 8-433 Version : 1.0

Function Transmission Reception Remarks Basic Channel Mode Default

Default

Changed

Messages

Note Number X 0~127 Velocity Note ON

Note OFF

After Touch

Key's

Channel's

X X

Pitch Bende r X O Control

Changes

Program Change

System Exclusive

System Common

Song Position

Song Select

System Real Time Others Local ON/OFF

All Notes Off

Active S ensing

Notes :

) Can be cha nged by SysEx Msg

) Can be cha nged to Mode 1 by SysEx Msg

) Only 44 Notes can be accepted at a time - range de pends on “Key Shift” parameter setting Mode 1 : OMNI ON , POLY Mode 3 : OMNI OFF, POLY

16 17 18 19

64 120 121

Tune

Clock

Command

Reset

X X X X X X X

X X

X O See description X

X X X X X X X X

Mode 2 : OMNI ON, MONO Mode 4 : OMNI OFF, MONO

1~16

Mode 3

X X

O O O O O O O

X X X O X X O X O

)

Own CC – Key Shift Own CC – Key Priority Own CC – Pitch Wheel Range Own CC – Arpg Clock Rate Hold All Sound O ff Reset All Controllers

O : Yes X : No

Page 16