Korg Krome

Detailed Editing with Programs Creating time-varying changes (LFO and EG)
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Creating time-varying
changes (LFO and EG)
Using LFOs
YoucanusethecyclicchangeproducedbytheLFO
(LowFrequencyOscillator)tomodulatenumerous
aspectsofthesound.
EachProgramhastw oLFOs:LFO1andLFO2.Thereis
alsoasingleCommonLFO,sharedbybothOscillators.
WhileLFO1andLFO2areseparateforeachvoice,the
CommonLFOissharedbyallvoicesintheProgram.
Thismakesitusefulwhenyouwantallofthevo
icesto
haveanidenticalLFOeffect.
YoucanusetheseLFOstomodulatemanydifferent
Programparameters,including:
•Pitch(forvibrato)
•Filters(forwaheffects)
•Volume(fortremolo)
•Pan(forauto‐panning)
TheLFOscanmodu
latemanyotherparameters,in
additiontothoselistedabove.
Using the basic LFO
1. AccesstheProgP5:LFO–OSC1LFO1page.
2. SelecttheWaveformparameter.
UsetheINCandDECbuttonstoscrollthroughthe
differentwaveforms,andlookattheirshapesinthe
graphicdisplay.
Thereareanumberofwaveformstochoosefrom.Each
aresuitedtodifferentapplications:
TriangleandSinearetheclassicLFOshapesfor
vibrato,tremolo,panning,andfilterwaheffects.
Squareisusefulforgatedonandofffilterandamp

effects,andcancreatetrillswhenmodulatingpitch.
TheGuitarwaveformisdesignedespeciallyforguitar
vibrato;itbendsonlyupwardsfromthebasevalue.
SawandExponentialSawDownaregoodfor
rhythmicfilterandampeffects.
Random1(S/H)createstheclassicsample‐
and‐hold
effect,whichisgreatformodulatingaresonantfilter.
3. Afterlookingatthedifferentwaveforms,select
Triangle.
4. SelecttheShapeparameter,andusetheVALU E 
dialtomovethroughitsdifferentsettings,from
–99to+99.
Noticehowtheshapeofthewaveformbecomesmo
re
curved,andhow–99emphasizesthelowerpartofthe
shape,and+99emphasizestheupperpart.
5. SelectthePhaseparameter,andusetheVA LU E 
dialtosweepthroughitsrangeofvalues.
Noticehowthewaveformshiftsfromsidetoside.
Amongotherthings,thisletsyouoffsettheLFOsfrom
oneanotherintime,whichcancreateinteresting
organiceffects.
6. UsetheFreq(Frequency)parametertosetthe
speedoftheLFO.
7.
UsetheFadeandDelaysettingstocontroltheway
theLFOsoundsatthebeginningofthenote.
FormoreinformationonLFOs,pleaseseepage 42of
theParameterGuide.
AlloftheseparameterscontrolthewaythattheLFO
works.InorderfortheLFOtoactuallyaffectthe
sound,youcanusethededicatedLFOroutingsonthe
Filter,Pitch,andAmppages,orusetheLFOsasAMS
sourcesforawidevarietyofparameters.
Using EGs (Envelope Generators)
Anenvelopecreatesamodulationsignalbymoving
fromoneleveltoanotheroveraspecifiedtime,and
thenmovingtoanotherleveloveranotherperiodof
time,andsoon.
TheProgramincludesthreeEGs,forPitch,Filter,and
Amp.Theseproducetime‐varyingchangesinpitch,
tone,andvolumerespectively.Theycanalsobeusedto
modulateanumberofotherprogra
mparametersvia
AMS.
Note: TheparametersthatcanbemodulatedbyanEG
andtherangeofvalueswilldifferdependingonthe
EGsprovidedforeachsection.
Waveform
Level
Time
note-on
note-off
Sutart Level
Attack Time
Decay Time
Slope Time
Attack Level
Break Level
Release
Level
Sustain Level
Release Time