Korg PS60 OSC1 LFO1

Program Edit
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OSC1 LFO1
ThispagehasallofthecontrolsforthefirstLFOofOscilla‐
tor1.Forinstance,youcan:
• ControltheLFO’sfrequency,andassignAMScontrollers
tomodulatethefrequency.
•Usethe“KeySync”parametertochoosewhetherthe
LFOrunsseparatelyforeachvoice,orissynchronized
acrossallofthevoices
•Usethe“Fade”and“Delay”parameterstocontrolhow
longtheLFOwaitstostartafternote‐on,andwhetherit
startsabruptlyorfadesinslowly.
•SettheLFOtosynctoMIDItempo.
OSC 1 LFO 1
Shape AMS Src [List of AMS Sources]
ThisselectsanAMSsourceforcontrollingtheLFO’sShape.
Modulatingtheshapecandramaticallyaltertheeffectofthe
LFO–tryitout!
ForalistofAMSsources,pleasesee“Alt e r n a t e Modulation
Source(AMS)”onpage121.
Shape AMS Int [–99...+99]
ThiscontrolsthedepthanddirectionoftheAMS(Shape)
modulation.
Stop [Off, On]
On:InsteadoftheLFOfunctioningnormally,itwillignore
theFreqsetting.TheLFOwillmaintaintheinitialvalue
(determinedbytheperformanceofWavef orm, Phase,
Shape,andOffset)untilthenote‐off.
Sincethevaluewillchangeonlyatnote‐on,usingaRandom
waveformwillproduceafixedvaluethatchangesrandomly
ateachnote‐on(oratthefirstnote‐on).
Off:TheLFOwillfunctionnormally.
Key Sync. [Off, On]
On:WhenKeySyncisOn,theLFOstartseachtimeyou
pressakey,andanindependentLFOrunsforeachnote.
Thisisthenormalsetting.
Off:WhenKeySyncisOff,theLFOstartsfromthephase
thatʹsdeterminedbythefirstnoteinthephrase,sothatthe
LFOsforallnotesbeingheldaresynchronizedtogether.The
FadeandDelaysettingswillonlyapplytothefirstnote’s
LFO.
NotethatevenifKeySyncisOff,eachnote’sLFOspeed
maystillbedifferentifyoumodulatetheFrequencybynote
number,velocity,keyscaling,orothernote‐specificAMS
sources.
Offset [–99...+99]
Bydefault,almostalloftheLFOwaveformsarecentered
around0,andthenswingallthewayfrom–99to+99.This
parameterletsyoushifttheLFOupanddown,sothat–for
instance–it’scenteredon50,andthenswingsfrom–49to
+149.
Forexample,let’ssaythatyou’reusinganLFOforvibrato.
IftheOffsetis0,thevibratowillbecenteredonthenote’s
originalpitch,bendingitbothupanddown.
IftheOffsetis+99,ontheotherhand,thevibratowillonly
raisethepitchabovetheoriginalnote.
Offset settings and pitch change produced by vibrato
TheoneexceptiontothisistheGuitarwaveform,whichis
designedtoemulatebendingastringonaguitar–sothatthe
pitchonlygoesup,andnotdown.Becauseofthis,thewave‐
formiscenteredon50,andnoton0.Ofcourse,youcan
alwaysuseanegativeOffsettoshiftitbackdownbelow0
again!
SinceOffsetaffectstheoutputvaluesoftheLFO,it’simpor‐
tanttonotethatitaffectsthesignalaftertheShapefunction,
asshownbelow:
How the LFO signal is affected by Shape and Offset
Fade [00...99]
TheLFOcanfadeingradually,insteadofsimplystarting
immediatelyatfullstrength.Thisparameterspecifiesthe
timefromwhentheLFObeginstoplayuntilitreachesits
maximumamplitude.
IftheDelayparameterisbeingused,thenthefadewill
beginafterthedelayiscomplete.
WhenKeySyncisOff,thefadewillapplyonlytothefirst
noteinthephrase.
LFO Fade and Delay
Delay [00...99]
Thissetsthetimefromnote‐onuntiltheLFOstarts.
When“KeySync”isOff,thedelayappliesonlytothefirst
noteofthephrase.
Frequency Modulation
Youcanusetwoalternatemodulationsources(AMS)to
adjustthespeedoftheLFO.
AMS1
Source [List of AMS Sources]
ThisselectsthefirstAMSsourcefortheLFO1’sfrequency.
ForalistofAMSsources,pleasesee“AlternateModulation
Source(AMS)”onpage121.
NotethatyoucanuseLFO2tomodulateLFO1’sfrequency.
Intensity [–99...+99]
ThissetstheinitialamountofAMS1(Frequency).TheInt
ModAMSthenaddstothisinitialamount.
Oset = –99 Oset = 0 Oset = +99
Pitch
OsetShapeWaveform
FadeDelay
Note-on Note-o