Kurzweil PC3K Series - Compressors, Expanders, and Gates

9-14
Effects
Compressors, Expanders, and Gates
MidnGainsetsthecutorboostfortheparametricbandn,witharangeof‐79to+24dB.
MidnFreqsetsthecenterfrequencyforparametricbandn,witharangeof16to25088Hz,in
incrementsofasemitone.
MidnWidthsetthebandwidthof
thefilteronbandn,witharangeof0.01to5octaves.
Enhancers
Enhancersmodifythespectralcontentoftheinputsignalbyboostingexistingspectralcontent,
orstimulatingnewones.Two‐andthree‐bandversionsareprovided.
Driveadjuststheinputintoeachband.Increasingthedrivewillincreasetheeffects.Rangeis
‐79.0to24.0dB.
Xferadjuststheintensityofthe
transfercurves.Range is‐100to100%.
EQ Morpher
Thisalgorithmusestwofour‐bandbandpassfilters,AandB,andmovesbetweenthem,which
amongotherthings,canproduceaveryconvincingsimulationofahumanvocaltract.
FreqScaleoffsetsthefilterfrequenciesfor eachsetoffilters.Aftersettingthefilterparameters
(Freq,Gain,andWidth),
theFreqScaleparameterswillmoveeachofthefourfilterfrequencies
togetherbythesamerelativepitch.Rangeis‐8600to86 00cents.
MorphA>B.Whensetto0%the“A” parametersarecontrollingthefilters,andwhensetto
100%,the“B”parameterscontrolthefilters.Between0and100%,
thefiltersareatinterpolated
positions.WhenmorphingfromAtoBsettings,theAfilter#1willchangetotheBfilter#1,A
filter#2movestoBfilter#2,andsoon.Rangeis0to100%.
Compressors, Expanders, and Gates
AwiderangeofCompressionandExpansio neffectsisavailableinthePC3K.Thevarious
algorithmsincludedifferentcombinationsof:
•compressorswithsoft‐kneecharacteristic—thecompressionactioncomesingraduallyas
thesignallevelapproaches thethreshold
•compressorswithhard‐kneecharacteristic—thecompressionactioncomesinabruptly
whenthesignalreachesthe
threshold
•expanders
•multibandcompressorsthatbreakthesignalupintothreefrequencybandsandcompress
themallseparately
•sidechainsoroutputEQs
•reverbsandcompressorsincombination
•gates
•gatedreverbs
AlloftheCompressionalgorithmsusetheseparameters:
FdbkComprs(FeedbackCompression)selectswhethertousefeed‐forward(s etthisto“Out”)or
feed‐back(set
thisto“In”)compression.Thefeed‐forwardconfigurationusestheinputsignalas
aside‐chainsource,whichisusefulwhenthecompressorhastoactreallyquickly.Thefeed‐back
configurationusesthecompressoroutputastheside‐chainsource,whichlendsitselftomore
subtle,butnotas
quick‐reacting,compression.
Atk(Attack)Timeforthecompressorisadjustablefrom0.0to228.0ms.
Rel(Release)Timeforthecompressorisadjustablefrom0to3000ms.