Korg Oasys User Manual

Using Alternate Modulation (AMS) and the AMS Mixers
63
EGs (Envelope Generators)
Anenvelopecreatesamodulationsignalbymoving
fromoneleveltoanotheroveraspecifiedtime,and
thenmovingtoanotherleveloveranotherperiodof
time,andsoon.
TheHD‐1includesthreeEGs,forPitch,Filter,and
Amp.Theseproducetime‐varyingchangesinpitch,
tone,and
volumerespectively.Theycanalsobeusedto
modulateanumberofotherProgramparametersvia
AMS.
Using Alternate Modulation (AMS) and the AMS Mixers
AMS(AlternateModulationSource)referstoanyof
theassignablemodulationsourcesinOASYS,
including:
•Built‐inphysicalcontrollers,suchastheJoystick,
Ribbon,andReal‐TimeKnobs
•IncomingMIDIcontrollers,orMIDIcontrollers
generatedbyKARMAortheVectorEG
• ModulatorssuchastheFilter,Pitch,andAmpEGs,
theLFOs,
ortheAMSMixers
Intensityisaparameterthatsetsthedegree(speed,
depth,amountetc.)towhichAMSwillcontrolthe
modulation.
Anumberoffrequently‐usedmodulationroutings,
suchasusingthejoysticktovarythepitch,are
providedasadditional,dedicatedroutings,separate
fromAMS.
Notethatnotall
AMSsourcesmaybeavailablefor
somemodulationdestinations.
FordetailsonalternatemodulationandAMS,see
“A l t e r n a t e ModulationSources(AMS),”onpage 1019
oftheParameterGuide.
Using the AMS Mixers
TheAMSMixerscombinetwoAMSsourcesintoone,
orprocessanAMSsourcetomakeitintosomething
new.
Forinstance,theycanaddtwoAMSsourcestogether,
oruseoneAMSsourcetoscaletheamountofanother.
YoucanalsousethemtochangetheshapesofLFOs
andEGsinvariousways,modifytheresponseof
realtimecontrollers,andmore.
TheAMSMixeroutputsappearinthelistofAMS
sources,justliketheLFOsandEGs.
Thisalsomeansthattheoriginal,unmodifiedinputsto
theAMSMixersarestillavailableaswell.Forinstance,
ifyouuse
LFO1asaninputtoaAMSMixer,youcan
usetheprocessedversionoftheLFOtocontrolone
AMSdestination,andtheoriginalversiontocontrol
another.
Finally,youcancascadethetwoAMSMixerstogether,
byusingAMSMixer1asaninputtoAMSMixer2.
Adding two AMS sources together
AMSmixerswilldodifferentthingsdependingon
theirTypesetting.TheA+BsettingmergestwoAMS
sourcesintoone.Thiscanbehandywhenyouneedto
addonemoremodulationsourcetoaparameter,but
you’vealreadyusedupalloftheavailableAMSslots.
Forinstance,let’ssay
thatyou’ reusinganLFOto
modulateFilterResonance,andthenyoudecidethatit
wouldbeinterestingtoscalethatparameterwithan
EGaswell.ResonancehasonlyasingleAMSinput,
butyoucaneasilymergetheLFOandtheEGtogether
usingtheA+BAMSMixer:
1. Assign
theLFOtoAMSA.
2. AssigntheEGtoAMSB.
3. AssigntheAMSMixerastheFilterResonance
AMSsource.
AMSMixerA+Bexample
Scaling one AMS source with another
WhentheTypeissettoAmtAxB,themixerusesthe
AMSBinputtoscaletheamountofAMSA.For
instance,youcancontroltheamountLFO1withthe
FilterEG,orcontroltheamountofthePitchEGwith
theribbon.
L
evel
Time
Attack Time
Decay Time
Slope Time
Release Time
Attack Level
Start Level
Sustain Level
Break Level
note-on note-off
Release Lev
el
A
MS A: LFO
A
MS B: EG
A
+B Output

Korg Oasys Specifications

General

Type	Workstation
Timbrality	16 parts
Velocity Sensitivity	Yes
Aftertouch	Yes
RAM	1GB
Synthesis Types	HD-1, AL-1, CX-3, STR-1
Oscillators	Varies by synthesis type
LFO	Multiple LFOs per program
Filter	Varies by synthesis type
Effects	12 insert effects, 2 master effects
Sequencer	16-track MIDI
Sampling	Yes, with 16-bit/48kHz resolution
Display	10.4-inch color touch screen
Keyboard	88-key or 76-key weighted action
Storage	40GB internal hard drive
Connectivity	MIDI In/Out/Thru, USB, S/PDIF