Korg Oasys - Selecting Combinations

Playing and editing Programs
66
BandPass.Thiscutsoutallpartsofthesound,both
highsandlows,exceptfortheregionaroundthecutoff
frequency.Sincethisfiltercutsoutbothhighandlow
frequencies,itseffectcanchangedramatically
dependingonthecutoffsettingandtheoscillator’s
multisample.
Withlowresonancesettings,you
canusetheBand
Passfiltertocreatetelephoneorvintagephonograph
sounds.Withhigherresonancesettings,itcancreate
buzzyornasaltimbres.
BandReject.Thisfiltertype–alsocalledanotchfilter–
cutsonlythepartsofthesounddirectlyaroundthe
cutofffrequency.Trymodulatingthecutoffwithan
LFO
tocreatephaser‐likeeffects.
FilterTypesandCutoffFrequency
Resonance
Resonanceemphasizesthefrequenciesaroundthe
cutofffrequency,asshowninthediagrambelow.
Whenthisissetto0,thereisnoemphasis,and
frequenciesbeyondthecutoffwillsimplydiminish
smoothly.
Atmediumsettings,theresonancewillalterthetimbre
ofthefilter,makingitsoundmorenasal,ormore

extreme.Atveryhighsettings,theresonancecanbe
heardasaseparate,whistlingpitch.
Tomaketheresonancetrackthekeyboardpitch,see
“KeyFollow,”onpage 66oftheParameterGuide.
Modulating the filters
Youcanmodulatethefiltercutofffrequencyusingthe
FilterEG,theLFOs,keyboardtracking,andother
built‐inandMIDIcontrollers.Thisisagreatwayto
addarichvarietyoftonalchangetothesound.
Filter EG
TheFilterEGisamulti‐stageenvelope,whichyoucan
usetomodulatethefilter(naturally!)aswellasother
Programparameters.TheEGitselfissetuponthe
FilterEGtab;thewaythatitaffectsthefiltersis
controlledbytheparametersdescribedbelow,onthe
Filter
Modtab:
TheIntensitytoAandIntensitytoBsettingscontrol
thebasicamountofEGmodulationforfilter
frequenciesAandB,respectively,beforeother
modulation.
TheVelocitytoAandVelocitytoBsettingsletyouuse
velocitytoscaletheamountofEGmodulation.
TheAMSsettingselects
aAMSmodulationsourceto
scaletheamountoftheFilterEGappliedtoFiltersA
andB.ThetwofiltersshareasingleAMSsource,with
separateintensitysettings.
L
ow Pass
H
igh Pass
B
and Pass
B
and Reject
Cutoff Frequency
Low resonance
H
igh resonance