Kurzweil PC3K8 Spécifications télécharger pdf (Page 81)

Program Mode

The Algorithm (ALG) Page

6-23

Algorithm Basics

Eachofthe59availablealgorithmsrepresentsapresetsignalpath. WithournewDynamic

VASTfeature,youcaneditanypresetsignalpathandmakeyourown,uniquealgorithms,but

thatwillbeexplainedfurtheroninthissection.TakealookatAlgorithm1inthediagrambelow.

It’s

oneofthesimplestalgorithms.

TheDSPfunctionsarerepresentedbytherectangularblocks.Thelinesconnectingtheblocks

togetherindicatestheflowofthedigitalsignalfromlefttoright;theyrepresentwhatwecallthe

“wire”ofthealgorithm:theactualphysicalpaththatthesignalfol lowsthroughthe

algorithm.

SelectingdifferentalgorithmscanbecomparedtoconnectingdifferentDSPfunctionswith

differentwiringdiagrams.

Thinkoftheleftsideofeachblockasitsinput,andtherightsideasitsoutput.Dependingonthe

algorithm,thesignalmaysplitintotwowires,enablingpartofthesignalto

bypasscertain

portionsofthealgorithm.Splitwiresmayrejoinwithinthealgorithm,ortheymaypassallthe

waythroughassplitsignals.Ifthelastblockhastwowiresatitsoutput,wecallitadouble‐

outputalgorithm.Ifithasonewire,it’sasingle‐output

algorithm,eveniftherearetwowiresin

earlierportionsofthealgorithm.

Eachblockofthealgorithmrepresentsacertainfunctioninthesignalpath.Ineverynon‐

cascadedalgorithm(seeAltInputforAlgorithms(CascadeMode)below),thesignalflowsfirst

throughaone‐stageDSPfunctionthatcontrols

thepitchofthesamplesinthekeymap(this

functionisrepresentedasablocklabeledPITCHintheupperright‐handcornerofthedisplay).

Infact,thefirstDSPfunctionineachalgorithmalwayscontrolspitch,eventhoughitdoesn’t

applyineveryinstanceand,aswillbeexplained

laterinthissection,itisbypassedincascaded

algorithms.Similarly,thelastDSPfunctionalwayscontrolsthefinalamplitudeofthesignal

(thisfunctionisrepresentedasablocklabeledAMPintheupperright‐handcornerofthe

display).

Thenumberoffunction‐parametersaDSPfunctioncanhave

dependsontherelativesizeofits

function‐blockontheAlgorithmpage(fourslotsisthelargestblocksize.)Forinstance,a

function‐blockthatisthreeslotslongcanhaveuptothreefunction‐parameters,whereasa

function‐blockthatistwoslotslongcanhaveupto

twofunction‐parameters.Foreachfunction‐

parameter,there’sacorresponding“subpage”onboththeDSPCTLandDSPMODpages.Onthe

DSPCTLsubpages,therearefineadjustandhard‐wiredparameterswithwhichyoucanmakefixed

adjustmentstothefunction‐parameter.OntheDSPMODsubpages,thereareprogrammable

parametersthatyou

canassigntoanycontrolsourceintheControllerListtomodulatethe

function‐parameter.Theaboveitalicizedparameter‐typesaredescribedinCommonDSPControl

Parameters on page 6‐24.MoreinformationonthesubpagescanbefoundinTheDSPControl

(DSPCTL)Page on page 6‐29andTheDSPModulation(DSPMOD)Page on page 6

‐30.

Highlightinganyofthefunction‐blocksontheALGpageandpressingtheEditbuttontakesyou

totheDSPCTLpage.

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Commentaires sur ces manuels

Chrisalomo 26 Apr 2024 | 04:31:38

Hello, im noob :)

ChrisNak 26 Apr 2024 | 23:13:29

Hello, im noob :)

Kurzweil PC3K8 Spécifications Page 81

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