Kurzweil PC3LE8 Specifications download pdf (Page 94)

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Program Mode

The Program Editor

The LFO Page

LFOsarelow‐frequencyoscillators.LFOsareusedtoautomatethemodulationofaparameter

basedontheshapeandfrequencyofanaudiowaveform.You’llusetheLFOpagetodefinethe

behaviorofthetwoLFOsavailabletoeachlayer.LFOsareperiodic(repeating)controlsources.

Thebasicelements

aretherate,whichdefineshowfrequentlytheLFOrepeats,andshape,

whichdefinesthewaveformofthemodulationsignalitgenerates.

WiththePC3LE,youcansetupperandlowerlimitsoneachLFO’srate,andassignacontrol

sourcetochangetheLFO’srateinrealtime,ifyouwish.

Becauseofitsperiodicnature,theLFOisperfectforcreatingeffectslikevibrato(cyclicvariation

inpitch)andtremolo(cyclicvariationinamplitude).Whenyou’ reedit ingLFOs,oranycontrol

source,rememberthatitmustbeassignedtocontrolsomeparameterbeforeyou’llhearthe

effectsofyouredits.

LFO1

isalwayslocal,meaningthatit’striggeredwitheachNoteOnevent,andruns

independentlyforeachnoteinthelayer.LFO2islocalbydefault,butcanbemadeglobal.Thisis

doneontheCOMMONpage,bysettingtheGlobalsparametertoOn,whichcausesLFO2,

ASR2,FUN2

andFUN4alltobecomeglobal.Globalcontrolsuniformlyaffecteverynoteineach

layer.

Minimum Rate

ThisistheslowestrateatwhichtheLFOruns.WhenitsRateControlissettoOFF,orwhenthe

controlsourceassignedtoitisatitsminimum,theLFOrunsatits

minimumrate.Aspreviously

mentioned,thevalues1/4note,1/8note,1/8triplet,and1/16notesynctheMinimumRatewith

thePC3LE’ssystemtempo.Ofcourse,ifyouchoosetotemposyncyourLFO,thentheLFOrate

isfixed,andyoucan specifyneitherMaximumRatenorRateControl.

Thedisplaychanges

thusly:

Parameter Group (Available

for each of LFO1 and LFO2)

Range of Values Default

Minimum Rate 1/4 note, 1/8 note, 1/8 triplet, 1/16 note,

0 to 24 Hz

0.00

Maximum Rate 0 to 24 Hz 0.00

Rate Control Control Source List Off

LFO Shape LFO Shape List (Ref. Guide) Sine

LFO Start Phase 0, 90, 180, 270 Degrees 0

1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 378 379

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Kurzweil PC3LE8 Specifications Page 94