DOEPFER MCV24 Bedienungsanleitung

DOEPFER

MCV24

MIDI-CV/GATE/SYNCINTERFACE

Preliminary English owners manual

Controls and connections

Frontpanel

123 4

5 6 7 8 9

10 11

1 32characterbacklitLCDscreen.

2 12outputsusingan8-bitDACoptimised for 0~10V output

3 Start/StopLED indicator controlledbyMIDI input. (linkedtopin 1 ofSyncsocket)

4 ClockLED indicator controlled byMIDIclock. (linked to pin3of Sync socket)

Dualfunctioncontrols- Rotaryand Push

5 {Rotary} - Outputselect - selects one ofthe24 outputs for programming

{Push} - Enters thevalue selectedwithrotary selection

6 {Rotary} - Menuselect-selects which page of parameters to edit

{Push} - Entersthe selected parameter foruseselected with rotary selection

7 {Rotary} - Valueselect - selects a value for thecurrentparameter

{Push} - Entersthe value selected bytherotary control for useage

8 4outputs using a 12-bit DAC optimised for-2~8Vatone volt per octave scaling

9 8outputs using an 8-bitDACoptimised for 0~10v atonevolt per octave scaling

10 Start/Stop output. (linkedtopin1 of Sync socket)

11 Clockoutput(linkedto pin 3 of Sync socket)

Backpanel

12 MIDI outisalso the thruofthe MIDIinput

13 MIDIinput

14 Sync outputwith programmabledivide ratioofMIDIclock

15 LCD Contrast-adjusts the viewinganglefor theLCD

16 Power switch

12 13 14 15

MCV24 Overview

TheMCV24 isaflexible MIDIto analogueinterface,and anyofit’s24outputscan beconfiguredfor

anypurposesuchascontrolvoltages forVCOpitch, controlvoltagesforanymodulationdestination(suchas

VCForVCA), triggers or gates. Outputs 1 to 4 arehigherprecision12-bitDAC’s,whilsttherest are 8-bit

DAC’s,outputs1to 12areoptimisedforone voltper octavescaling, butcanalsobeset toHertz/volt scaling

(likemost Korgand Yamaha instruments). Alloutputshave a programmableslewcontrol to reducedigital

quantisationinherent in a 7-bit MIDI system, in fact this slew control onthe analogue side can produce a

smoother control voltage from an 8-bit converter than some 16-bit converters manage without the slew

control.

EachCVoutputhasprogrammableoffsetand rangealong witha secondaryCV thatis mixedwith the

firstone, and can beanyMIDI event or controller.

24softwaredrivenvoltagecontrolledLFO’seachwithselectable waveforms,waveshapes(including

random),MIDI syncable, outputoffsetand rate control-one for eachofthe available outputs

24software drivenvoltagecontrolled ADSRenvelopes- oneforeach of theavailable outputs

24softwaredrivenvoltagecontrolledslew limitersforportamento orfilteringquantisation.

Modulationmatrix allowsup to6patches peroutput, modulationofany sourceto anydestination

Independentkeyingmodesfor eachoutput includinghighnote,lownote, lastnote andpoly modes

Alloutputs can be setforvolt per octave orhertzper volt scaling

Calibrationofalltuning andscaling donefromthefrontpanel -no trimmerpresets toadjust

Programmableclockdivision fromMIDI clock,plusclockinversionoption

16non-volatilememories(rememberswhenswitched off),tosuit varyingsystemrequirements.

Programmablememoriescan benamed

Start/Stopoutput on frontpanelconverts MIDI transport

5-pinDIN sync socketoutput on rearpanel,can be programmedtoany standardsuchas Roland (24)

,Korg (48), Linn (96) etc..

MCV24 Basics

The MCV24 doesn’t really have any controls for operation, once it has been programmed to do a

particularfunction, thatisexactly whatitdoes, soonceprogrammed, changing presetsis probably theonly

operationrequiredon theMCV24.However,afullunderstandingofwhattheMCV24willdoandhowtoset

itup isa vitalelementthat mustbe learnedfirst.As therequirement ofaMIDI toCV interfaceislikely tobe

differentforeveryone,itisdifficultto generate“factory” presets,as theinstruments towhich itis goingtobe

usedwithisan unknown factor.Assuming it is most likely to be a Doepfer A-100systemisfine,exceptit

wouldstillbe unknownwhat kindofcontrolisneeded.So,unlike mostpieces ofequipment,wehavetostart

learningtheMCV24byprogramming,ratherthancalling upa fewfactory presetsto experimentwith.

Ifyou absolutely musttry to maketheMCV24 work straightaway, tryconnectingthe CV1outputto

aVCO input,andCV13 outputto theGateinput, andtransmityour MIDIinputon channel1, but whenyou

need to know why - read on.

Controls

Perhapsthefirst controlto mentionistheLCDcontrastcontrolon therear panel,thisshouldonlyneed

tobe setonce, andifneeded tobe alteredasmall screwdriveris needed,asthe controlis recessedbehindthe

backpanel. In mostcases, it willbeunnecessary to adjustthiscontrol anyway.

Thefrontpanelhas3controlsOUTPUT,MENUandVALUE,althoughtheseareactuallydualcontrols

astheyhavea pressaction aswelltoselectthe itemselected bythem. TheMENUcontrolswhichparameter

toedit, the VALUEknob is used to change the value (pressing the knob actually enters the data), and the

OUTPUTknobselects which of the 24 outputs to be edited.

Inmostexamplesshownhere,Output01 isused andshown, butthe operationsrelate toall 24outputs.

MENUS

Thereare 7 pagesofoperation within themenu,labelled A toG.

Turningthe MENUcontrolmoves betweenthepages. TurntheMENU knobanticlockwiseuntil the

screenbelowis shown. (If you are into a deeper menu,youwillneedto press the MENU knob to return to

thispage.

MENU-A

Thefirstpageis actuallyjust aninformationpage,andreminds youthat youhave aDoepferMCV24,

however,ifyou presstheMENU knob,theinstalled operatingsystem version andrelease dateisdisplayed.

A----->:Output01

Doepfer MCV24

V1.0 15.06.99

A----->:Output01

Doepfer MCV24

<B---->:Output01

CV Parameter

<-C--->:Output01

LFO & ADSR Param

<--D-->:Output01

ModulationMatriX

<---E->:Output01

System Parameter

<----F>:Output01

Global Sync Par.

<-----G:Output01

Preset&Utilities

MENU-B

TherearetwoCV’speroutputwhicharemixedtogether,CV1andCV2havedifferentoptionsavailable

withsomecrossover,though CV1 istheonlyonethatcanbeassigned notes, and CV2 is the only one that

canbe assigned pitchbenderfor example.

CVPARAMETER

TheCVParametermenu holdsmany pages,asthissectionis wheremost ofthe settingslive.Pressing

the MENU knob enters the first page (actually, the page you go to is the last page before this menu was

exited,so in here,turnthe knob anticlockwiseuntilthe screen asshownbelow is on thescreen).

MIDI TO

TheMIDITofunctionselectswhichMIDIeventwillbeassignedtocontrolthe selectedoutput(Output

01inthe caseof theexampleshownhere).Dependingonwhich eventis selected,determineshowmanyedit

pagesare available, as allunrelatedoptions are suppressed tokeepthings clearer.

TheMIDIsourcesavailableforCV1are:Off,Notes,Controllers,PolyAftertouchandMonoAftertouch.

MIDI TO - NO EVENT

NoEventisbasically the OFF option, this only turns off CV1, CV2 is still active. There are then no

pagestoselectthat relate to CV1.

MIDITO - NOTEEVENT

Note Event selects MIDI notes to be used for CV1 output. 5 additional pages of options become

availablerelatingtonotes.

<B---->:Output01

CV Parameter

EditCV1:Output01

Midito:xxxxxxxxx

EditCV1:Output01

Midito:NoteEvent

EditCV1:Output01

Midito:NoEvent>>

MIDICHANNEL

TheMIDICHANNELpagesallowstheMIDIchanneltobeassignedtocontrolaparticularoutput

CV. Any channel between 1 and 16 can be selected here. In the example shown, output CV number 1 is

beingcontrolledbyMIDI channel1.

MODE

Modeis the keyingpriority for theselectedoutput, the optionsare:-

HighNote Whenplayedlegatoorpolyphonically,thehighest(top)notewill beused

High&Follow SameasHighNotemode, exceptthehighestnotewill retriggerwhenplayedlegato

orpolyphonicallyifahighernoteisreleased withanother noteheld down.

Low Note Ifplayed legatoorpolyphonically,the lowest(bottom)note willbeused

Low&Follow Sameas LowNote mode,exceptthelowestnote willretrigger whenplayed legato

orpolyphonically ifa lowernoteis releasedwith anothernoteheld down.

LastNote Howeverplayed, whatever thelastnote played, willbe used

---------- Reservedforfuture expansion

Poly1 Allows multiple CVoutputsto be settothe same MIDIchanneland played

polyphonically.

Poly1 &Priority AsPoly 1exceptpriority giventonote

Poly2 Same asPoly1, exceptwitha differentkeyreassignment system.

Poly2 & Priority sameasPoly 2, exceptprioritygiven to note.

BASENOTE

TheBaseNoteisthelowestnote thatcan beplayed fromthe keyboard.This isactually settingthenote

thatis assignedto aCVoutput of0V. Ideally, thisisthelowestC onthecontrollingkeyboard,any othernote

willtransposetheCVoutput.Note theuseof Germanmusicalterminology,whereBisshownas H,theupper

caseletters are negative values (C1 for example isC-1),andwith no number,indicatesthenormal bottom

noteofa5 octave keyboard (C = C0 which is MIDI note 36 - the note that a General MIDI Drum kit Bass

Drumis on). Becauseitis the basenotethat is beingchanged,it may appear thatthevalue knob increments

thepitch thewrong way-as youturn thecontrolclockwise andthe basenotegoes up- thepitchfalls. Thisis

correctand justaboutlogical ifyou giveitsome thought-which wewillnot gointo here.

EditCV1:Output01

Mode:xxxxxxxx

EditCV1:Output01

BaseNote :c1

EditCV1:Output01

Midichannel:001

NOTEFROM

Thissetting canbe abitdifficult tograsp, yetsimplewhen understood.This settingofFROM andthe

nextsetting ofTO,allowsa keyboardzoneto bespecified,essential alownote (From)anda high note(To)

that the output CV will work within. Most of the time, this will be set across the entire keyboard, with a

FROMsetting ofC3 (value=000) anda TOsettingof g6(value =127).So todefine afiveoctave keyboard

rangeFROM issetto Cand TOisset toc4,although thereisrarely anyneed to restrictthe range,soleaving

thedefault setting of FROM C3andTO g6 is advisable.

NOTETO

The upper note setting for the above Note FROM setting. If you set the TO lower than the FROM,

thenthis has the sameeffectas an off position,andno data will bepassed.

The next setting is SLEW, but before this, we will take a look at the different settings for different

settingsof MIDITO.

MIDITO - CONTROLLERS

MidiToControllerdefinestheMIDIcontroltoaMIDIcontrollerorarangeofcontrollers,whichisset

withthefollowingmenuitems.

MIDICHANNEL

TheMIDICHANNELpagesallowstheMIDIchanneltobeassignedtocontrolaparticularoutput

CV. Any channel between 1 and 16 can be selected here. In the example shown, output CV number 1 is

beingcontrolledbyMIDI channel1.

EditCV1:Output01

From:C3

EditCV1:Output01

to :g6

EditCV1:Output01

Midito:Controll.

EditCV1:Output01

Midichannel:001

FROM

TheFROMand TO (next item) parameters select which controller touse.Itispossible by using the

FROMand TO range to specifyjustone controller number (perhaps thisisthenormal mode anyway), ora

rangecan be specified - this could allow severalcontrollers to control the same destination, such asMod

wheel(controller 1)andbreath controller(Controller2).

WhereareservedfunctionisassignedtoaMIDIcontroller,thedisplaywillshowthatfunctionbyname

ratherthan number, suchascontroller 1is theModulationwheel andcontroller 7isChannel Volume.

Thisisthe TOpart ofthecontrollerrangesetting.Ifyou setthe TOlowerthantheFROM,thenthis has

thesame effect as an off position, andnodatawill be passed.

Thenextsettingis SLEW,butbeforethis,we will take a look at more differentsettings for different

settingsof MIDI TO.

MIDI TO

MidiTo polyaftertouch definestheMIDI controlto polyphonicaftertouch.

MIDI CHANNEL, MODE, BASE NOTE, FROM, TO

ThesesettingsarethesameasthatforMIDIEVENT=Notes,pleaserefertothissectionatthebeginning

ofthissection.

MIDI TO

ThisselectsMIDItomonophonicaftertouch,whichistheaftertouchdatageneratedbymostkeyboards.

Therearenoadditionalparameterswithmonoaftertouch, sowe moveon towhere allthe othermenus pages

turnto next:-Slew

EditCV1:Output01

From:Modulation

EditCV1:Output01

To :Breath Ctrl

EditCV1:Output01

Midito:PolyAfter

EditCV1:Output01

Midito:MonoAfter

SLEW

This is where the Slew function is enabled or disabled. When on, the CV output voltage is slewed,

which means it’s rate of change is slightly lagged, this improves the limitation of the 7-bit MIDI system,

althoughfornoteinformation alonger settingwouldbeusedfor portamento.(The slewtime settingisunder

theCV2 parameters later on). With controllers, aftertouch and pitch bender, a greater smoothness can be

achievedusingslew.

Thenext parameters areonlyavailable if MIDI EVENTS=notes.

VELOCITY

TheVelocity mode determines what the velocity of theincoming MIDI note will be routed to. The

optionsare:-

ADSRAttack - Velocity controloverthe speed oftheAttack time intheADSR

ADSRDecay - Velocity controloverthe speed ofthe Decay timeinthe ADSR

ADSRSustain - VelocitycontrolovertheleveloftheSustainlevelin theADSR

ADSRrelease - Velocity controlover thetimeof theRelease timeinthe ADSR

ADSRM.Depth - Velocity controlover theoutputlevel ofthe ADSR

LFOM.Depth - Velocity control overthe output levelof the LFO

unused.... - forfutureexpansion

Slew-Rate - Velocity controlover theSlewratetime

Direct - Allowsthe velocity generated CV tobesent to any output CV

Allroutings canthenbe sentto upto4 separateoutputCV’s usingthefollowing menu

VELOCITYTO

TheVelocity To options allows up to 4definedoutputsfor the Velocity data tobesentto. In the

exampleshown above here, thevelocityCV is being senttooutput CV 5.

EditCV1:Output01

Slew :On >>

Veloci.:Output01

Mode:Direct

Veloci:Output01

>1--->:Output05

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