Kurzweil PC3LE8 Specifications download pdf (Page 105)

Program Mode

The Program Editor

6-53

Editing VAST Programs With KVA Oscillators

ThePC3LEusesKVAoscillatorsasanotherwaytogeneratesoundsinVASTprograms.Unlike

keymaps,whichplaysamplesstoredinROM,KVAoscillatorscreateDSP‐generatedwaveforms

everytimetheyaretriggered.TheKVAoscillatorscancreatearangeofwaveforms,fromhigh

qualitysimplewaveformsfamiliartousersof

classicanalogsynths,tocomplexwaveforms

whichtakeadvantageofthePC3LE’sinternalprocessingpowerandcomplexsignalrouting

capabilities.ThoughthePC3LEdoeshavekeymapscontainingsamplesofbasicsynth

waveforms,theuseofKVA oscillatorsprovidesuserswithbetterportamento,moremodulation

options,highersoundquality,andother

advantageswhichwillbeexplainedinthissection.

LearningtouseKVAoscillatorsinsteadofkeymaps (whereappropriate)issimpleandwill

increasetheversatilityofyourVASTeditingcapabilities.VASTprogramsusinglayerswithKVA

oscillatorscanalsobecombinedwithotherlayersusingkeymaps.

Basic Use of KVA Oscillators

Tounderstandthebasic

minimalsetupofaKVAbasedprogram,selecttheprogram1019

VA1NakedPWMPoly,presstheEditbutton,thenpresstheV.A .S.T.softbuttontoenterthe

V.A .S.T.ProgramEditor.IfyouarefamiliarwitheditingVASTprograms,thefirstthingyoumay

noticeisthatontheKEYMAPpage,Keymapisset

to999Silence(MoreonthisinAdvancedUse

OfKVAOscillators on page 6‐55.)Next,lookattheAMPENVpage.TheAMPENVmodeissetto

User,whichgivesyoucontrolovertheamplitudeenvelope(moreonusingNaturalmodelater.)

Finally,lookattheALGpage.Inthecurrent

algorithmthe3blockKVAoscillatorPWMhasbeen

selected,whichgeneratesthesoundforthislayeroftheprogram.

Minimal Settings for Basic Use of KVA Oscillators:

ThepatchdescribedabovecontainstheminimalsettingsthataKVAlayerneedsinorderto

functioninthestyleofaclassicanalogsynth.Theseminimalsettingsare:

1.EditProg:KEYMAP

Page:SettheKeymapparameterto999Silence.

2.EditProg:AMPENVPage:SettheEnvelopemodetoUser,andadjusttheamplitudeenvelope

toyourliking(seeTheAmplitudeEnvelope(AMPENV)Page on page 6‐46.).

3.EditProg:ALGPage:PickanAlgorithmandsetanOscillator(seeSettingKVAOscillatorType

below.)

FurtherbasicVAST

settingsthatyouwilllikelywanttoadjustare:

• MonophonicOn/Off(seeTheCOMMONPage on page 6‐39.)

•LevelVelocityTracking(seeTheDSPControl(DSPCTL)Page on page 6‐33.)

ReadtheSettingKVAOscillatorTypesectionbelowtolearnabouthowseteachtypeofoscillator.

Afterdoingthis,youcanexperimentwithmaking

KVAprogramsbyfollowingtheabove

settings,andthensettingandlisteningtoeachtypeofoscillator.Onceyouunderstandhowto

dothis,readontothe AdvancedUseOfKVAOscillators section on page 6‐55(seebelow) tolearn

howtomakeyourKVApatchesmoreexpressivethroughtheuseof

DSPmodulation.

Pitch Settings for KVA Oscillators

Eachoscillator(exceptfornoisefunctions)hasitsownpitchparameters,andisunaffectedby

pitchsettingsthatwouldnormallyaffectkeymaps(suchasthoseontheKeymappage.)Ona

programlayer,thecoarsepitchparameterfortheoscillatorinusecanbefoundonboththe

DSPCTLandDSPMODpages,intheparameterslistbelowthestandardPitchparameterfor

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Kurzweil PC3LE8 Specifications Page 105

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