Introduction to OASYS
16
Step Sequencer
ThestepsequencerbuiltintotheAL‐1cannotonly
playphrasesorrhythms,butalsobeusedasan
extremelysophisticatedmodulationsource.Ifthe
outputofthestepsequencerisassignedtoPitch,the
resultwillbeamelodicphrase.Ifassignedtothefilter,
thefilterwill
producemodulationinsynchronization
withthetempo.
Thestepsequenceralsoprovidesa“Smoothing”
parameterthatinterpolatesbetweenthevaluesofeach
step,lettingyoucreatenotjuststep‐wisemodulation
butalsosmoothchangethatcanfunctionasanLFO
withfreely‐specifiedwaveform.Sinceyoucanspecify
theduration
ofeachstepindividually,thiscanbeused
tocreatenotjustsimplebeatsbutalsocomplex
rhythms,producingamind‐bogglinguniverseof
phrases,rhythms,andmodulation.
AMS – a powerful modulation system with AMS
Mixers and Keyboard Tracking Generators
TheAL‐1givesyouamodulationsystemthatisfar
morepowerfulthananyother,withAMS(Alternate
ModulationSource)atitscore.Youcanchoosefroman
amazing52differentmodulationsources,including
theoutputofthestepsequencer,EGs,andLFOs,as
wellascontrollerssuchasthe
joystick,knobs,pedals,
andswitches.Thesesourcescanbeassignedto
modulationdestinationssuchassoundparameterslike
pitchorcutoff,andcanalsobeusedtomodulatethe
EGattacktimeorsustainlev el.Youcanevencreatea
highlycomplexmodulationsourcebyusingone
modulationsourceto
modulateanothermodulation
source;forexample,usinganEGtomodulatethe
waveformofanLFO.
TherearealsotwoKeyTrackinggeneratorsthatletyou
createnaturalchanges–ordramatictransformations–
inparametervaluesasyouplaydifferentrangesofthe
keyboard.
Inaddition,thenewlydevelopedAMS
Mixersnotonly
letsyoumixmultiplemodulationsourcesandassign
themtoasinglemodulationdestination,butalsolet
youmodifythesourceitselfsothatasingle
modulationsourcecanbeadaptedtomultipleuses.
Detailed Specifications
• Oscillators:OSC1,OSC2,SubOSC,noisegenerator,
ringmodulator,FM
•Audioinput:Externalaudiosourcescanbe
processedbyringmodulation,filtering,driver,
amp,orEQ
• Filter:Twomulti‐modefilterspervoice(low‐pass,
high‐pass,band‐pass,bandreject),fourfilter
routings(single,serial,parallel,24dB)
•Multi‐filter(filter
Aonly:low‐pass,high‐pass,
band‐pass,anddirectinputcanbemixedfreely)
• Driver:Per‐voicenon‐lineardriver/low‐boost
•Modulation:Fiveenvelopegenerators,fourLFOs,
twokeytrackinggenerators,twoAMSmixers,one
stepsequencer–inadditiontotheCommonLFO,
CommonStepSequencer,CommonKeyTracking
generators,and
VectorEGoftheEXiProgram
CX-3 Tonewheel Organ
A perfect simulation of a tonewheel organ system
Tonewheelorgansgeneratesoundbyrotatingtoothed
metaldisks(thetonewheels)pastapickuptogenerate
sinewaves.Korg’sCX‐3usescutting‐edgemodeling
technologytopreciselyreplicatethedistinctive
modulationandnoisecomponentsofsounds
producedinthisway,andthistechnologyhasbeen
furtherrefinedandincludedin
theOASYSastheCX‐3.
Twotonewheeltypesareprovided;“Vintage”which
modelseventheleakagenoisefromthetonewheels,
and“Clean”whichfaithfullyreproducesthewarm
tonewheelorgansound.Inaddition,thenoises
producedbythetonewheelandthevacuumtubeamp,
andeventheoperationofthe
wheelbrake,haveall
beensimulatedtoanobsessivedegreeofperfection.
Justlikerealtonewheelorgans,theCX‐3deliversfull‐
keypolyphony*,lettingyouenjoythesameplaying
feelasonavintageorgan.
*Themaximumpolyphonywillvarydependingon
howtheinserteffectsarebeingused.(The
polyphonyis172voicesifnoinserteffectsareused.)
Drawbars – the heart of a tonewheel organ
Adrawbarorganallowstheplayertocreatethe
desiredsoundbypullingoutdrawbarsthatare
assignedtovariouspitchesrelativetothefundamental,
andthiscapabilityisprovidedontheCX‐3Tonewheel
OrganbytheToneAdjustfunctionwhichyoucan
controlusingthenineslidersonthe
frontpanel.You
canalsousetheToneAdjustfunctiontoswitchthe
rotaryspeakerbetweenslow/fastandcontrolthe
percussionandwheelbrakefromfrontpanelknobs
andswitchesthatyou’veassignedtothesefunctions,
enjoyingtheimmediacyofdynamiccontrolthat’sso
importantforanorganperformance.
EX mode for new sound-creating potential
Inadditiontomodelingastandardtone‐wheelorgan
with9drawbarsandsingle‐pitchpercussion,theCX‐3
addsKorg’sexclusiveEXmode.Thisaddsfour
additionaldrawbars,withpitchesadjustableinhalf‐
stepincrementsbetween16’andtwooctavesabove1’.
EXmodealsoallowsyoutocreatecustom
percussion
usinguptofivedifferentpitches,eachwithadjustable
volumelevels.Together,theadditionaldrawbarsand
custompercussionopenupevendeeperpossibilities
forcreatingnewsounds.
Realistic simulation of rotary speaker effects
TheCX‐3notonlyprovidesanimpeccabletonewheel
simulation,butalsogivesyoueverythingyouneedto
completethesonicexperience,witheffectssuchas
ampmodeling,vibrato/chorus,androtaryspeaker.
Youcanchoosefromthreedifferentcharactersofamp
modeling,andavibrato/choruseffectthatprovides
presetsaswell
asbeingcustomizable.Fortherotary
speakerthatissoindispensabletoorgansounds,you
canseparatelyspecifytherotationalspeedofthehorn
androtor,andevenmakedetailedadjustmentsto
parameterssuchastherateatwhichtherotation
changesfromslowtofast.Inaddition,therotary
speakerincludestwostereomicsimulatorsthatletyou
specifythedistancefromthespeakertothemicand
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