User Manual

6-24
Program Mode
The Algorithm (ALG) Page
Common DSP Control Parameters
ThetypeofDSPfunctionavailableforanyfunctionblockdependsonthealgorithm.Someofthe
specializedfunctionslikethePANNERarealwayslocatedjustbeforethefinalAMPfunction.
Others,likethetwo‐inputfunctions,appearonlyinalgorithmsthatarestructuredfortwo‐input
functions.
Youcanchange
thenatureofeachlayerofaprogramsimplybyassigningdifferentDSP
functionstothelayer’salgorithm.Yourlevelofcontrolgoesmuchdeeperthanthat,however.
EachDSPfunctionhasoneormoreparameterstowhichyoucanpatchavarietyofcontrol
sourcestomodifythebehaviorof
theDSPfunctionsthemselves.
Theparametersonthevariouscontrol‐inputpagesareverysimilar;infact,therearesix
parametersthatappearonalmosteverypage.Consequentlywerefertothemasthecommon
DSPcontrolparameters.Althoughtheparametersonthecontrol‐inputpagesdifferslightly
fromfunctionto
function,youcanexpecttosee someorallofthecommonDSPcontrol
parameterswheneveryouselectthecontrol‐inputpageforanyoftheDSPfunctions.
You’llrecognizethecommonDSPcontrolparameters,alongwithseveralotherparameters.
Keepinmindthatthere’sasetofcommoncontrolparameters
foreachoftheDSPfunctions;in
thiscasewe’redescribingthemonlyastheyapplytothepitchcontrolfunction.
Function-parameter
UnliketheotherfivecommonDSPparameters,thefunction‐parametersareaccessibleonboth
theDSPCTLpageandtheDSPMODpage.Theyarelistedalongtheleft‐handside
ofeachpage;
anychangesmadetothemononepagearereflectedintheother.Thelabelofeachfunction‐
parameterdependsonitsfunctioninthecurrentprogram’salgorithm.Forexample,thePitch
function’sfunction‐parameterislabeledPitch;whereasthetwo‐blockLopassfunction’s
function‐parametersare
labeledLPFrqandLPRes.
Byadjustingthefunction‐parameter,youcanaddafixedamountofadjustmenttoanyDSP
function.ForthePitchfunction,adjustingthefunction‐parameterwillchangethepitchin
semitoneincrements.Usethisasastartingpointtosetthepitchwhereyouwant
ittobe
normally.Thiswillshiftthepitchofthecurrentlyselectedlayer,andwillaffecttheplaybackrateof
sampledsounds.Sampledsoundshaveanupperlimitonpitchadjustment.It’snormalforthe
pitchesofsampledsoundsto“pin”(stopgettinghigher)whenyouadjustthepitch
upwardin
largeamounts.Theoscillatorwaveformscanbepitchedhigher.Anysou ndcanbepitched
downwardwithoutlimit.
Theprimaryuseofadjustingthefunction‐parameterorfi neadjustparameter(whichwillbe
explainedunderthenextheading)istooffsetthecumulativeeffectsoftheotherDSPfunction
parameters.
Forexample,youmightsetahighvalueforkeytracking(definedbelow)fora
dramaticchangeineffectacrossthekeyboard.Theeffectmightbetoomuchatoneendofthe
keyboard,however,soyoucoulduseoneoftheadjustparameterstoreducetheinitialamount
of
thateffect.