Kurzweil PC3K7 - Decay Segment; Release Segments; Loop Type; Number of Loops

Program Mode
The Envelope 2 (ENV2) and Envelope 3 (ENV3) Pages
6-43
Decay Segment
Thedecaysectionhasonlyonesegment.Ithasvaluesfortimeandlevel,justasfortheattack 
section.Thedecay sectionbeginsassoonastheattacksectionhasbeencompleted.Itstartsatthe
sameamplitudelevelastheattacksegmentprecedingit,andmovestoitsassigned
levelinthe
timespecified.You’llhearanote’sdecaysectiononlywhentheattacksectioniscompleted
beforeaNoteOffmessageisgeneratedforthatnote.
Tocreateasustainingenvelope,simplysettheDecaysegment’sleveltoanonzerovalue.
Release Segments
Liketheattackanddecaysections,eachofthethreesegments inthereleasesectionhasvalues
fortimeandlevel.Eachsegmentreachesitsassignedlevelinthetimespecifiedforthatsegment.
Releasesegment1startsattheNoteOffeventforeachnote,atthecurrentamplitudelevel
of
thatnote—whetherit’sintheattacksectionorthedecaysection.Itthenmovestoitsassigned
levelinthetime specified.Releasesegments2and3startatthefinallevelsofthesegments
beforethem.Releasesegments1and2canbesettoanylevelfrom
0to150%.Releasesegment3
alwayshasalevelof0%,soyoucan’tadjustitslevel.InplaceofitsLevelparameteryouseea
parameterthatletsyoutogglebetweenUserenvelopesandthesound’spreprogrammednatural
envelope.
Loop Type
TherearesevendifferentvaluesforLooptype.
AvalueofOffdisablesloopingforthecurrentlayer’samplitudeenvelope.
Valuesofseg1F,seg2F,andseg3Fareforwardloops.Ineachcase,theamplitudeenvelopeplays
throughtheattackanddecaysections,thenloopsbacktothebeginningofthefirst,
second,or
thirdattacksegments,respectively.
Valuesofseg1B,seg2B,andseg3B,arebidirectionalloops.Theamplitudeenvelopeplays
throughtheattackanddecaysections,thenreversesandplaysbackwardtothebeginningofthe
first,second,orthirdattacksegment,respectively.Whenitreachesthebeginningofthe
assigned
attacksegment,itreversesagain,playingforwardtotheendofthedecaysection,andsoon.
Number of Loops
AvalueofInfmakestheamplitudeenvelopeloopuntilaNoteOffisgenerated.Valuesof1
through31indicatehowmanytimestheloopwillrepeataftertheamplitudeenvelopehas
playedoncethroughitsnormalcycle.
Regardlessofthelooptypeandthenumberofloops,eachnote
goesintoitsreleasesectionas
soonasitsNoteStategoesoff(thatis,whenaNoteOffisgenerated).Theenvelopewill
continuetoloopaslongasNoteStateremainson,whetherit’sheldonbyapedal,bytheIgnRel
parameter(describedinthesectionentitledThe
LAYERPage on page 6‐22),orwhatever.
The Envelope 2 (ENV2) and Envelope 3 (ENV3) Pages
ThePC3KofferstwoenvelopesinadditiontoAMPENV.LikeAMPENV,ENV2andENV3can
beassignedlikeanyothercontrolsource.UnlikeAMPENV,however,ENV2andENV3canbe
bipolar.Thismeansthatyoucansetnegativevaluesforthem.(Obviously,youcan’thavean
amplitudelessthanzero,so
AMPENVisunipolar—thevaluesrangefromeither0to 100%or0
to150%.)Abipolarenvelopecontrollingpitch,forexample,couldmodulatethepitchboth
aboveandbelowitsoriginallevel.