User Manual

9-20
Effects and Effect Mode
Effects Parameters
separation.Thespacingbetweenimpulsesisgiveninsamples(20.8μs).Atlowvalues,thebuzz
startsathighfrequenciesanddropsslowly,whileathighvaluesthebuzzstartsatalowerpitch
anddropsrapidly.Rangeis0.0to40.0samples,witharesolutionof0.2sample.
Contourcontrols
theoverallshapeofthereverb.Whensettoahighvalue,soundspassed
throughthereverbstartatahighlevel,anditslowlydecays.Asthecontrolvalueisreduced,it
takesmoretimefortheeffecttobuildupbeforedecaying.Atavalueofaround34%,the
reverb
behaveslikeareversereverb,buildinguptoahit.Whenitissettozero,theeffectactslikea
simpledelay.Rangeis0to100%.
Filters
TherearefourtypesofResonantFiltereffectsinthePC3K.Allofthemhavetheseparametersin
common:
FilterType(orFiltType)canbe Lowpass,Highpass,Bandpass,orNotch(band‐cut).
Resonanceistheresonanceofthefilter,adjustablefrom0to50dB.
Resonant Filter
Frequency(orFreq)isthefixed
resonantfrequencyofthefilter.Itsrangeis16to8372Hz.
Envelope Filter
EnvelopeFilterisaresonantfilterwhosecenterfrequencycanbemadetovaryaccordingtothe
leveloftheincomingsignal.
FilterTypecanbeLowpass,Highpass,Bandpass,orNotch(band‐cut).
MinFreqistheminimumresonant
frequencyofthefilter,thatis,thefilterfrequencywhenthe
inputgainisbelowthetriggeringthreshold.Itsrangeis16to8372Hz.
Sweepdetermineshowfartheresonantfrequencymoveswhentheinputlevelincreases.At
positivelevelsitmovesupinpitch,andatnegativelevelsit
movesdown.Thehighestpossible
resonantfrequencyis8372Hz,thelowestis0Hz.Thisparameter’srangeis‐100%to+100%.
Resonanceistheresonanceofthefilter,adjustablefrom0to50dB.
AtkRateadjuststheupwardslewoftheattackportionoftheenvelopedetector.Rangeis0
to
300.0dB/sec.
RelRateadjuststhedownwardslewofthereleaseportion.Rangeis0to300.0dB/sec.
SmoothRateslowsdowntheenvelopefollower.IfitissettoalowerratethanAtkRateorRel
Rate,itcandominatethoseparameters.Rangeis0to300.0dB/sec.
Triggered Filter
TheTriggeredFilterisasweepingresonantfilterthattriggerswhenacertaininputthresholdis
reached,andthenfollowsitsownenvelope,consistingofaninstantaneousattackandan
exponentialrelease,ratherthantheenvelopeoftheinputsignal.
MaxFreqistheresonantfrequencyofthefilteratthe
peakoftheinternalenvelope.Itcanbeset
lowerthanMinFreq(above),inwhichcasethefilterwillsweepdownwards,thenbackup.
Rangeis16to8372Hz.
Triggeristheinput‐signalthresholdatwhichtheenvelopedetectortriggers.Rangeis‐79to
0dB.