Korg PS60 - Page 61

AMS Mix/C.KeyTrk (AMS Mixer/Common Keyboard Track) OSC1 AMS Mix
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Amt AxB
AMS Mixer, Type =Amt A x B
ThisMixerTypeusesAMSBtoscaletheamountofAMSA.
Forinstance,youcancontroltheamountofLFO1withthe
FilterEG,orcontroltheamountofthePitchEGwiththe
joystick.
AMS Mixer Amt AxB example
AMS A Source [List of AMS Sources]
ThisselectsthefirstAMSsource,whichcanthenbescaled
byAMSB.
ForalistofAMSsources,pleasesee“AlternateModulation
Source(AMS)”onpage 121.
AMS A Amount [–99...+99]
ThiscontrolstheinitialamountofAMSA,beforemodula‐
tionfromAMSB.InputfromAMSBthenaddstothisinitial
amount.
EvenifAmountAissetto0,AMSBcanstillcontrolthe
finalamountofAMSAoverthefull+/–99range.
AMS B Source [List of AMS Sources]
ThisselectsthesecondAMSsource,toscaletheamountof
AMSA.
ForalistofAMSsources,pleasesee“AlternateModulation
Source(AMS)”onpage 121.
AMS B Amount [–99...+99]
ThiscontrolsthedepthanddirectionoftheAMSBmodula‐
tionofAMSA.
Forexample,ifAMSAissettoLFO1andAMSBissetto
theFilterEG,positivesettingsmeanthattheEGwill
increasetheamountofLFO1.
Tips: Using a foot switch to turn an AMS source
on/off
YoucanuseAmtAxBasagatecontrolforanAMSsource.
(Youʹllneedtoconnectafootswitch,setGlobal:Controllers
“TypeSW/Pedal”toSwitch,andset“FootSWFunction”to
FootSwitch(CC#82)beforeyoucontinuewiththefollowing
procedure.)
1. Assign“A M S A”toadesiredsource,andset“A M S A
Amount”to0.
2. Assign“A M S BSource”toFootSwitch(CC#82),andset
“A M S BAmount”to+99.
Nowyoucanusethefootswitchconnecte dtothePS60
toturnAMSAon/off.
Offset
AMS Mixer, Type = Offset
Thissimpleprocessoraddsaconstantoffsettotheinput,
andalsoallowsyoutodoublethegainofanAMSsource.
Forinstance,youcanusethistoconvertabipolarLFO(both
negative andpositive)toaunipolarLFO(positiveonly).To
dothis:
1. SelecttheLFOastheAMSAinput.
2. SettheAMSAAmountto50.
ThiscutstheoverallleveloftheLFOinhalf,sothat
insteadofswingingbetween–99and+99,itonlyswings
between–50and+50.
3. SettheAMSAOffsetto50.
Thisadds50totheLFOlevel,sothatitnowswings
between0and+99,asshownbelow.
AMS Mixer Offset examples
AMS A Source [List of AMS Sources]
ThisselectstheAMSsourcetobeoffset.
ForalistofAMSsources,pleasesee“A l t e r n a t e Modulation
Source(AMS)”onpage 121.
Offset Amount [–199...+199]
ThiscontrolsthebasiclevelofAMSA.
+199doublestheoriginalsignallevel,while–199doubles
thelevelandinvertsthephase.Thevaluesareclippedonly
attheoutput;internally,theycanbegreaterthanthenormal
rangeof–99to+99.
AMS A
AMS B
Amt B
Output
Amt A
AMS A: LFO
AMS B: EG
Amt A*B Output
AMS A
Amt A
Output
Oset A
AMS A: LFO
+99
0
–99
Oset = +50, Amount = 50
+99
0
–99
Oset = –99, Amount = +199
Clipped
at Output
+99
0
–99