Industrial Music Electronics HERTZ DONUT MARK III Bedienungsanleitung

Industrial Music Electronics Nicht kategorisiert HERTZ DONUT MARK III

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HERTZ DONUT MARK III

OPERATIONS MANUAL • FIRMWARE V1.0

FUNDAMENTALS

 TheHertzDonutMarkIIIisacomplexoscillatorutilizingthenestdigitalsoundsynthesistechniquesfromthe

mid-1980s.Itusesacombinationofphasedistortionandthru-zerofrequencymodulation(FM),andthesynthesis

algorithmprovidesaccesstoanauxiliaryoscillator/outputaswellasasimpliedcontrolforthetotaleffectofthe

modulationbus.Anaudioinputactsasafull-bandwidthsourceformorecomplicatedmodulationsinvolvingexternal

devices.Theunisondetunefunctionoffersbeautifulglasschorusvoicing,andthephasedistortionparametershave

beenchosentoprovidecoherenttimbrewarpingevenunderheavyfrequencymodulation.Themodulecontainsthe

MarkIIImorphingpresetmanagerwhichfacilitatesstorageandperformanceofallmoduleparameters.

GETTING STARTED

 Whenthecoarsetuneissettoitsminimumpositionandthenetuneissettothemiddleposition,thegenerated

frequencywillbe16.35hz(noteC0)withnoexternalvoltagesapplied.Patchinga1voltperoctavetunedsequencer,

quantizer,orkeyboardvoltageintothisjack(suchastheSTILLSONHAMMERorARGOSBLEAK)willchangethe

oscillator’sfrequencytothedesirednote.IfthecontrolvoltageissetsothatC0isequivalenttoavalueof0volts,then

thenotenamesshownontheHertzDonut’sdisplay(andthegeneratedfrequency)willmatchtheinputvoltage.Listen

totheresultsofyourpatchprogrammingatanyofthejacksintheOUTPUTsection.TheMAINoutputwillcontainthe

moststraightforwardexampleofyourprogramming.TheAUXoutputbehaviorisselectableinamenu.TheMIXoutput

isasimpleanalogcombinationofbothoutputs.

SCREEN SAVER

TheHertzDonut’sdisplayisanOLED.Itissettoabrightnesstoprovidethebestbalancebetweenvisibilityandlong

life.TopreservethelifeoftheOLED,itwillturnoffifabuttonorencoderisnotusedfor10minutes.Toturnitbackon,

pressabuttonorturntheencoder.

MK III MENU SYSTEM

 MostfunctionblocksinIndustrialMusicElectronicsmoduleshavehiddenmenusassociatedwiththem.Toaccess

them,holddowntherotaryencoderbuttonandpushtheassociatedbutton.Themenuwillappearonthedisplay.Turn

theencodertoselectthedesiredmenuitem.Pushtheencodertoselecttheitem,andturntheencodertochange

theselecteditem.Pushtheencoderbuttonagaintoenteryourselection.Exitthemenubypressinganyoftheother

buttons.Ifabuttondoesnothaveamenuassociatedwithit,thenthebuttonpresscombinationwillusuallyinvoke

anothershortcutfunction.

CV INPUTS

 MostCVinputsontheHertzDonutacceptfull-scale,

bipolarcontrolvoltageswitharangeof+/-10v.Theresponse

ofthevariousinputsarescaledtoprovideamusically

usefulrangeofmotionwithinthetypicalrangeof+/-5V,

withadditionalreactivityfaroutsideofthisrange.The

attenuvertersuseanonlinearcurvetoallowatypicalcontrol

voltagetosubtlymodulateasmallrangeoftheparameter,or

full-swingtravelwithouttheuseofexternalamplication.

PRIMARY OSCILLATOR

 Thetwofrequencycontrolssetthecoarseandnetuningfrequenciesoftheoscillator.Theirspecicfunctions

maybereversedintheMAIN“GLOBAL”OPTIONSmenubypressingtheEncoderandEXTbutton,scrolldownto

Turn

COUNTER-

CLOCKWISE

to SUBTRACT

Turn CLOCKWISE to ADD CV to parameter

“Attenuverter”

CV Input

the“FreqKnobMode”item.“Normal”assignsthelargeorangeknobtoCoarseTuneandthesmallknobtoFineTune.

“Reverse”assignsthelargeknobtoFineTuneandthesmallknobtoCoarseTune.

 Thefrequencyoftheoscillatorissetasacombinationofthecoarseandnemanualtuningcontrols,thevoltage

presentatthe“1V/Oct”and“CV”jacks,theOCTAVESHIFTparameter(inthemenu),andtheloadedpresetdata(if

ALLPARAMSisenabled.)The“CV”jackacceptsabipolarcontrolvoltage,suchasavibratoLFO.Itisattenuatedby

thenearby“attenuverter”knob.

PHASE DISTORTION

 Theprimaryoscillatorproduces a

sinewavewithnoharmoniccontent

thatismodiedbythe“FOLD”

controltocreateamorecomplicated

waveform.Therearethreewaveform

parametersthatmaybemodiedby

thiscontrol.The“FOLDSELECT”

buttonchooseswhichparameteris

modiedbytheFOLDknob(thecurrentselectionisshownonthedisplay).Intheoscillatormenu,the“CVDestination”

parameterchooseswhichparameterisaffectedbytheFoldCVinput.WhenyouchangetheFOLDSELECT,the

currentknobpositionforthepreviouslyselectedparameteris“frozen”,andyoucanthenusethesameknobtoenter

thevalueforthecurrentlyselectedparameter.Allthreewaveformparametersarestoredinapresetandcanbe

morphedcontinuouslybythepresetmanagerforamode-less,3-dimensionaltimbrespace.Thedisplayshowsagroup

ofthree"virtualsliders"inthecenterthatcommunicatesthecurrentsettingofallthreeparameters.Whenallthree

parametersaresettozero,asinewaveisproduced.

 TherstanddefaultFOLDsettingisthePhaseDistortion,shownas“PDist”onthedisplay.Thismodiesthe

“ramp”thatisusedtogeneratethe

sinewave,addingbreakpointsand

reversals.Thiscausesasmoothlinear

outgrowthofadditionalharmonics,

reminiscentofthesynthesisofsimple

brassinstrumenttones.Pastthe12

o’clockpositionontheknob,therst

harmonicinthesignalbecomesvery

strong,andcreatesaperceived“octave-up”effect.Therestrainedyetcharacterfulnatureofthisparametermeansthat

itperformswithexceptionalclarityevenunderheavyfrequencymodulation.

UMBRAGE

 Thisisthesecondparameter

oftheFOLDSELECTsetting.When

selected,thedisplaywillread“Umbr”

onthetopline.Itisbasedonthe

“fractal”waveformdistortionfrom

previousversionsoftheHertzDonut.

Itcausessmallleaf-andbranch-

likestructurestogrowoutfromtheslopesofthewaveform.Thiscreatesa“fuzz”typeofdistortionwithabiastowards

higherfrequencies,consonantwiththebasefrequencyofthewaveform.

RESONANCE

 ThisisthethirdparameteroftheFOLDSELECTsetting.Whenselected,thedisplaywillread“Reso”onthetop

line.Itisinspiredbythe“virtualresonance”waveformsofhistoricalPhaseDistortionsynthesizers.Itcausesaseriesof

resonantpeakstorisethroughoutthewaveformasthecontrolisincreased.Whenyouroriginalwaveformisclosertoa

simplesinewave,theeffectsoundsjustlikearesonantltersweep.Withmorecomplicatedwaveforms,theresonance

effectsoundsclosertoclassicoscillatorsyncsweeps.Thiseffectislessstableunderheavyfrequencymodulation.

Produktspezifikationen

Marke:	Industrial Music Electronics
Kategorie:	Nicht kategorisiert
Modell:	HERTZ DONUT MARK III

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