User Manual

6-6
Program Mode
KB3 Program Structure
KB3 Program Structure
There’snothingquitelikethesoundoftheclassicHammond™B‐3tonewheelorgan,especially
whenplayedthroughaLeslie™rotatingspeakersystem.We’vedoneextensivetestingand
analysiswithseveraltonewheelorgans,andcreatedourownmodelstoemulatetheunique
tonewheelsound.Weeventookinto
accountthewaythatolderorgansstarttosounddifferent
(andarguablybetter)asthei rcapacitorsbegintoleak—andweincludedaparameterthatlets
youvarytheamountofgrunge(leakage)inyoursound.
KB3programsuseoscillatorstoemulatethetonewheelsound.Eachoscillatoroperates
independently,andhas
itsownpitchandamplitudecontrol.Youcancontrolhowmany
oscillatorsareusedforaKB3program.Therearetwooscillatorspervoice,foratotalof256.You
canuseupto91oftheminaKB3program(the92ndisreservedtoproducekeyclick).Because
theoscillatorsstartrunningassoonasyouselectaKB3program,therearealwaysvoices
available—unlikeVASTprograms,whichstart“stealing”noteswhenyoureachthepolyphony
limit.
Theoscillators—we’llcallthemtonewheelsfromhereon—aredividedintoanupperandlower
group.Theuppertonewheelsusethe
samplesinthePC3K’skeymapstogeneratesound,while
thelowertonewheelsusesinewaves.YoucanchangethekeymapofaKB3program’supper
tonewheelstoproducealargearrayofsounds.Bychangingthekeymapfromsinetoasaw
waveitispossibletoemulatethe
soundofclassiccomboorgansliketheVox™andFarfisa™
models.
KB3programsarealsoroutedthroughvibrato,rotaryspeaker,preampanddistortioneffects,
seebelowfordetails.
KB3 Mode
KB3programsaredifferentenoughfromVASTprogramsthatweusethetermKB3modeto
describewhat’sgoingonwhenyouplayaKB3program.WheneveryouplayaKB3program,
youareinKB3mode.TheblueLEDintheKB3buttonwilllightwhenthecurrentprogramis
a
KB3program.YoucanplayKB3programsonlyonasinglechannelatatime.
IfyouwanttocreateyourownKB3program,startbyeditinganexistingKB3program.
KB3 Effects And Real-time Controls
Youhavereal‐timecontrolovermanycomponentsofKB3programsdirectlyfromthefront
panel.Theslidersemulatethedrawbarsthataresoessentialtothetonewheelsound,whilethe
buttonsabovethem(theBankButtons)cancontrolthe KB3effects:Leslie,vibrato,chorus,and
percussion.Whenusinga
KB3programinSetupMode,youmustsettheMutesparameterto
KB3ControlinordertousetheBankbuttonsforcontrollingKB3effects(seeMutes on page 7‐66
fordetails.)
Drawbars
Oneofthestandardperformancefeaturesofmanytonewheelorgansisthesetofdrawbarsfor
emulatingthestops
onapipeorgan.Movingthedrawbarscontrolstheamplitudeofeitherthe
fundamentalsortheharmonicsofthenotes.ThePC3K’sslidersserveastheninedrawbars
foundonmosttonewheelorgans.Pushingtheslidersupistheequivalentofpushingthe
drawbarsin(removingfundamentalsorharmonics).
Subharmonics Fundamental Harmonics
16'
5
1
/3'
8' 4'
2
2
/3'
2'
1
3
/5' 1
1
/3'
1'
Slider A Slider B Slider C Slider D Slider E Slider F Slider G Slider H Slider I
Table 6-1 Standard Drawbar Settings for the Hammond B3