Work-pro WPR 2 User manual

Brand: Work-pro

Model: WPR 2

Category: Musical Equipment

Type: User manual

LOUDNESS MAXIMIZER/PROGRAM ENHANCER/COMPRESSOR/CROSSOVER WPR2

WORK

WPR2

Thissymbol,whereveritappears,alerts

youtothepresenceofuninsulateddangerous

voltageinsidetheenclosure-voltagethat

maybesufficienttoconstituteariskof

shock.

Thissymbol,whereveritappears,alerts

youtoimportantoperatingandmainte-

nanceinstructionsintheaccompanying

literature.Readthemanual.

SAFETYINSTRUCTIONS

CAUTION: Toreducetheriskofelectricalshock,donotremove

thecover(orback).Nouserserviceablepartsin-

side;referservicingtoqualifiedpersonnel.

WARNING: Toreducetheriskoffireorelectricalshock,donot

exposethisappliancetorainormoisture.

DETAILEDSAFETYINSTRUCTIONS:

Allthesafetyandoperationinstructionsshouldbereadbeforetheapplianceisoperated.

Thesafetyandoperatinginstructionsshouldberetainedforfuturereference.

Allwarningsontheapplianceandintheoperatinginstructionsshouldbeadheredto.

Alloperationanduserinstructionsshouldbefollowed.

Theapplianceshouldnotbeusednearwater(e.g.nearabathtub,washbowl,kitchensink,laundrytub,inawetbasement,

ornearaswimmingpooletc.).

Theapplianceshouldbesituatedsothatitslocationorpositiondoesnotinterferewithitsproperventilation.For example,

theapplianceshouldnotbesituatedonabed,sofarug,orsimilarsurfacethatmayblocktheventilationopenings,or

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(includingamplifiers)thatproduceheat.

Theapplianceshouldbeconnectedtoapowersupplyonlyofthetypedescribedintheoperatinginstructionsoras

markedontheappliance.

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theappliance.

Theapplianceshouldbecleanedonlyasrecommendedbythemanufacturer

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Theapplianceshouldbeservicedbyqualifiedservicepersonnelwhen:

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-Theappliancehasbeendropped,ortheenclosuredamaged.

TheusershouldnotattempttoservicetheappliancebeyondthatisdescribedintheOperatingInstructions.

Allotherservicingshouldbereferredtoqualifiedservicepersonnel.

RetainInstructions:

HeedWarnings:

Followinstructions:

WaterandMoisture:

Ventilation:

Heat:

PowerSource:

GroundingorPolarization:

Power-CordProtection:

Cleaning:

Non-usePeriods:

ObjectandLiquidEntry:

DamageRequiringService:

Servicing:

DoublestheloudnessofyourRecordingsandSoundReinforcementSystemswithoutanydistortion

Built-inDenoiserandExciterfornoise-freeandultratransparentsound

3DStereoSurroundProcessorprovidesunbelievablespatialenhancementandimprovedstereoimaging

SuperBassEnhancerpsycho-acousticallycreatesanincrediblebasssoundbelowyourloudspeaker'sfrequency

range

IncorporatedLevelerforconstantaverageoutputlevelwhileretainingtheinstantaneousdynamics

24-bitA/DandD/AConverterswith64/128timesoversamplingforultra-highheadroomandresolution

Internal24-bitprocessingwithprofessional48kHzsamplingrate

Servo-balancedInputsandOutputsongoldplatedXLRandTRSjackconnectorsforhighsignalintegrity

50userpresetMemoriestostoreprogramsforinstantrecall

Accurateeight-segmentLEDLevelandGainReductionmetersforoptimumperformance

FullMIDIcapabilityallowsreal-timeparametercontrolandprogramselection

Variableband-splitcompressioneliminatesvirtuallyanyintermodulationeffects,suchasbasspumpingetc.gain""

UltimateMasteringMachinemaximizessignalenergywithabsolutelyinaudibleandtransparentcompression""

MultibandBrickwallLimiterprotectsagainstanyclippinganddangeroussoundpressurelevels""

WPR2

WORK

WPR2

WORK

TABLEOFCONTENTS

..................................................................................................................................... 4

1.1 Frontpanel .........................................................................................................................................................

1.2 Backpanel ..........................................................................................................................................................

1.3 ..................................................................................................................................

2. OPERATION................................................................................................................................................

2.1.1 TheUltramizerfunction...........................................................................................................................

2.1.2 TheMax.OutLevelfunction ................................................................................................................

2.1.3 TheExciterfunction ..............................................................................................................................

2.1.4 TheSuperBassfunction .....................................................................................................................

2.1.5 The3DSurroundfunction ...................................................................................................................

2.1.6 TheDenoiserfunction ..........................................................................................................................

2.1.7 TheCrossoverparameter ....................................................................................................................

2.2 Selectingpresets .............................................................................................................................................

2.3 Editingpresets ..................................................................................................................................................

2.4 Savingpresets ..................................................................................................................................................

2.5 MIDIcontrol.......................................................................................................................................................

3. APPLICATIONS........................................................................................................................................

3.1 Levelsetting .......................................................................................................................................................

3.2 UsingtheWPR2theinastudioenvironment .........................................................................

3.2.1 TheWPR2inanalogrecording ..................................................................................

3.2.2 TheWPR2indigitalrecordingandsampling .............................................................

3.2.3 TheWPR2inmastering .................................................................................................

3.3 TheWPR2asaprotectivedevice ............................................................................................

3.4 TheWPR2inaMIDIsetup ....................................................................................................

3.5 SavingdataviaMIDI ........................................................................................................................................

4. APPENDIX ..................................................................................................................................................

4.1 MIDIimplementation ........................................................................................................................................

4.2 Specifications ...................................................................................................................................................

1. CONTROLELEMENTS

Restoringfactorydefaults

1. CONTROLELEMENTS

Fig.1.1:WPR2frontpanel

TheWPR2isequippedwithtenilluminatedparameterkeys,onejogwheel(rotary control),

anumericdisplay,8LEDindicatorsandapowerswitch.Eachofthetwofullyindependentchannelscanbe

monitoredwithfour8-stageLEDmeters,displayinginputlevel,outputlevelandgainreductionforboth

bands.

1.1 Frontpanel

Fig.1.2:DisplaysectionWPR2

ThetwoLEDchainsreadtheinputsignallevelindB,referencedtotheinternaldigitalmaximum.

PleasenotethatthenominalleveloftheWPR2canbeselectedwiththe+4dB

/-20dBleveladjusmentonthebackpanel.(see3.1"levelsetting")

Thegainreductionmetersshowtheappliedgainreduction.Gainreductionisshownforbothfrequency

bands.GRLOshowsthegainreductioninthelowerandGRHIinthehigherfrequencyband.

ThesetwoOUTLEDchainsreadtheoutputsignallevelindB,referencedtothemaximumoutput

levelof+15dBu.

Afterpower-up,theLEDdisplayreadsthenumberofthepresetlastused.Thisclearlylegible,2

digitnumericdisplayhasplus/minusindicatorstoshowthatparametersarebeingincrementedor

decrementedinEditmode.

1/2

41.CONTROLELEMENTS

Nexttothedisplay,theappropriateunitlightsuptoindicatethecorrectvaluewhichisbeingedited.

TheseeightLEDilluminatedunitsareveryimportantwithkeyswhichcanrepresentmorethanone

parameter.

Fig.1.3:Functionkeysandjogwheel

Withthejogwheel,acontinuousrotarycontrol,youcanfreelyedittheselectedparameters.Turn

thewheelclockwisetoincreasethevaluesorcounter-clockwisetoreducethem.

WhenyoupressthePRESETkeyonce,youcanusethewheeltoselectaprogramdirectly,which

isshownbyadotlightingupinthedisplay.Whilethisdotison,youcanselectaprogram

thoughitssettingswillnottakeimmediateeffect.Whenthejogwheelhasnotbeentouchedfora

shorttime,theLEDinthedisplaydisappearsandtheprogramisloaded.

WiththeDENOISERkeyyouhaveaccesstotwoparameterswhichinfluencetheprocess.

ForfurtherinformationontheUltramizerfunctionpleaserefertosection2.1.1.

c)Pressedthirdtime,theRANGEcanbeset(willlightupinthedisplay).Thisparameterdeterminesthe

maximumamplificationtheUltramizerfunctionmayuseinordertoachievethedesiredDENSITYandMAXIM-

UMOUTPUTLEVEL.Thevaluecanbeadjustedfrom0to24dB.

"dB"

b)Pressedasecondtime,theSPEEDoftheUltramizerfunctioncanbeset(willlightupinthedisplay).

Thisparameterisveryimportantforthedynamicbehaviorwhichdependsontheapplication.Generallylow

SPEEDsettingsaresuitediftheULTRAMIZERistoworkratherinaudiblyHigherSPEEDisrequiredwhen

shortlevelchangesshouldbelevelled.

"SPED"

WhentheLEFTkeyispressedonlythesettingsfortheleftchannelareedited.

UsetheRIGHTkeytoselecttherightaudiochannel.

Ifyouwishtoprocesstheleftandrightaudiochannelssimultaneously(COUPLEmode),pressbothLE-

FT&RIGHTkeystogether.IncouplemodebothkeyLEDslightup.Wheneveryoueditoneofthetwo

audiochannelsandthenswitchtocouplemode,theparametersoftheactivechannelwillbecopied

totheother;i.e.IfyoupressLEFTbeforeRIGHT,leftwillbecopiedtoright.

TheEXCITERkeyhasthreefunctions:

a)PROCESS,(willlightup)whenpressedoncetheintensityoftheExciterfunctioncanbeadjusted

rangingfrom0to100.

"PROC"

b)PressedasecondtimetheTUNEparametercanbeset(willlightup).TheTUNEcontrolsetsthelower

cut-offfrequencyoftheExciterfunction.Thecut-offfrequencycanbeadjustedwithinarangeof4to11kHz.

"Hz"

TheSUPERBASSkeyhasthreefunctions:

a)PROCESS,whenpressedoncetheintensityoftheSuperBassfunctioncanbeadjustedranging from0to100

("PROC"willlightup).

b)PressedasecondtimetheTUNEparametercanbeset("Hz"willlightup).HeretheTUNEcontrolsetstheupper

cut-offfrequencyoftheSuperBassfunction.Thecut-offfrequencycanbeadjustedwithinarangeof50to150Hz

c)AgainthethirdfunctionisreachedbypressingtheSUPERBASSkeyformorethan2seconds.The

lowerfrequencybandisnowmuted.ThisisindicatedbyafullGRLOLEDbarthatflashesonandoff.

1.CONTROLELEMENTS

UsetheMAX.OUTLEVELtosettheoutputlimiter.Thisvaluecanbesetfrom-48to0dB.ThedBvaluewilllig-

htupnexttothenumericdisplay.YoucanchangetheMAX.OUTLEVELparameterfrompeaktoRMSmodeby

pressingtheMAX.OUTLEVELkeyforabout2seconds.RMSmeansthesettingofanaveragelevelfortheMAX.

OUTLEELparameter.Peakstandsforapeakvalue.TomakeclearthatyouareinRMSmodewilllightupin

thedisplay.45

Usethe3DSURROUNDkeytoincreasethestereowidthofthesignal.Settingcanrangefrom0(noprocess-

ing)to100.

a)WhenpressedoncetheTHRESHOLDoftheNoiseGatecanbeset(willlightupinthedisplay)The

valuerangesfrom-90dBto0dB.meanstheDenoiserfunctionisdeactivated.

"dB"

"OF"

Pleasebearinmindthatwhenthethresholdnumberdisplayedissmall,thethresholdlevelinfactishigh

andconsequentlyonlyloudsignalswillpassthrough.Whenthevalueisloweredto-100dBforexam-

ple(referringtothedigitalmaximum)everysignalwillpass.

c)ThethirdfunctionisreachedbypressingtheEXCITERkeyformorethan2seconds.Theupperfrequencyband

isthenmuted.ThisisindicatedbyafullLEDbarthatflashesonandoff(GRHI).Thisfunctionisusefulwhenyou

wanttomonitortheprocessingoftheWPR2.Alternativelytheunitcanalsobeusedasacrossover

togenerateasubwoofersignalforinstance.

TheUltramizerfunctionenablesyoutomaximizetheperceivedloudnessoftheprogrammaterial.TheULTRAM-

IZERkeygivesyouaccesstothreeparameters:

a)WhenpressedoncetheDENSITY(DENSwilllightupinthedisplay)canbeadjusted.Thesubjectivelyfelt

densityoftheprogrammaterialistheresultoftheamountofcompressionthatisapplied.TheDENSITYcanbe

adjustedfrom0(nocompression)to100(extremedynamicgainreduction).

b)WhenpressedasecondtimetheSENSITIVITYcanbeadjusted(willlightupinthedisplay).Thisgo-

vernsthesensitivityofthedynamichighcutfilterandhowitreactstotheinputsignal.Thevaluerangesfrom0to

100.

"SENS"

WhentheEXCITERandSUPERBASSkeysarepressedsimultaneously,thecrossoverfrequency,between-

thelowerandhigherbandsofthemultibandcompressor-canbeadjustedfrom20Hzto20kHz.

TheIN/OUTkeyenablesyoutobypasstheDSPPDACIV.ThegreenLEDlightsupassoonasthe

WPR2sactivated.i

WheneverasettinghasbeenchangedthePRESETkeystartstoblinkslowly,indicatingthatapresethasbeen

changedbutnotstored.WhenthePRESETkeyispressedoncethecurrentpresetnumberisshowninthenumeric

display.WhenthePRESETkeyispressedagainthecurrentpresetnumberstartsflashing,youcanthenselectany

ofthe50memorylocations.Pressathirdtimetosavetheeditedprogramtoauserpresetasshowninthedisplay.

WhentheIN/OUTandPRESETkeysarepressedsimultaneouslytheWPR2

enterstheMIDImenu,whereallMIDIsettingscanbeedited.

UsethePOWERswitchtoswitchtheWPR2onoroff.

OUT THRU

MIDI

OUTPUTS2

INPUTLEVEL INPUTLEVEL

20dB 20dB

+4dB +4dB

OUTPUTS2INPUTS2 INPUTS1

IN: REPLACEWITHSAMETYPEFUSEANDRATING

ALLINPUTS&OUTPUTS

FULLYBALANCED

TIP/PIN2

RING/PIN3

SLEEVE/PIN1

SERIALNUMBER

DATECODE

CHINA: 160-250VACT100mA

CONCEIVEDANDDESIGNEDBYDIGISYNTHETICCHINA

ATTENTION:RISKOFELECTRICSHOCK

DONOTOPENTHECOVERORBACK

DIGISYNTHETICPLUSMODELDSPPDAC

23 22 21 20 18 19

1.2Backpanel

Fig.1.4:Backpanelconnectorsandcontrolelements

UsetheOPERATINGLEVELswitchtoadapttheWPR2todifferentoperatinglevels.

You canselecta-10dBVsemi-prolevelusedforhomerecordinganda+4dBulevelusedinprofessional

studios.ThiswaytheWPR2isalwaysoptimallyadaptedtotheusednominaloperating

level.

ThesearetheWPR2analogINPUTS.TheWPR2hasbothXLRand

jack inputsandoutputs.EachXLRandjacksetiswiredparallelandcanbeusedeitherbalancedor

unbalanced.

ThesearetheWPR2analogOUTPUTS.AlsoonbalancedorunbalancedXLRorTRS

jacks.

21 PleasetakethetimetocompletetheenclosedWarrantyRegistrationCard.Puttheinstructionmanualin

asafeplaceandreturnthecompletedWarrantyRegistrationCardtouswithin14daysofpurchase,

makingsurethatthedealerstamphasbeenacquired.

ThesearetheWPR2SMIDIconnectors(MIDIOUT/THRU/IN).Viatheseconnectors

totalremotecontrolispossible.

Pleasenotethatnotallappliancescanbeusedwithdifferentmainsvoltageratings.Pleasecheck

thedescriptiononthebackoftheunitandthebox.

1.3Restoringfactorydefaults

ToprotecttheWPR2againstusererrors,animportanteditcommandhasbeenimplementedviaa

particularkeycombination.Innormaloperatingmodethepresetscannotberesettotheirfactorydefaults,so

astosecureyourownprogramsassafelyaspossible.Pleaseproceedasfollowstoreinitializethepreset

defaultsettings:

PressandkeepthekeysEffectandPRESETbeforepoweringupTheWPR2.

ThenswitchonTheWPR2andkeepthetwokeyspressedforabouttwoseconds.The

programnumbersarecountedupandresettotheiroriginaldefaultsettings.

2.OPERATION

TheWPR2isoneofthelatestgenerationdigitalprocessingdevices.Especiallydesigned

forprocessingthetotalmixorcomplexmusicsignals.WORKpastexperienceindigitaland

analogprocessingdevicescometogetherinthisnewdevice.IntheWPR2,theadvantagesofdigital

technologygohandinhandwiththewarmandpowerfulsoundofanalogdevices.TheWPR2

combines multiplefunctionsfortheprocessingofstereosignalsinonedevice.Itisamulti-bandCompressor,

a3D-SurroundProcessor,aDenoiseraswellasanExciterandaBassProcessor.Despitethisunbelievable

processingpowertheWPR2canbeintuitivelyoperatedwithanaudioqualitypreviouslyunimaginable.

2.OPERATION

ThisistheMAINSCONNECTOR/FUSEHOLDER/VOLTAGESELECTOR.Beforeyouconnectthe

unit,pleasemakesurethatthedisplayedvoltagecorrespondstoyourMainssupply.Pleasenotethatthe

ACvoltageselectionisdefinedbythepositionoftheFuseHolder.Ifyouintendtochangetheoperating

voltage,removetheFuseHolderandturnitby180degreesbeforeyoureinsertit.Matchingthetwo

markersmonitorstheselectedvoltage.Pleasenotethat,dependingonthemainsvoltagesuppliedtothe

unit,thecorrectfusetypeandratemustbeinstalled(seeChapter6.2Pleaseusethe

enclosedmainscabletoconnecttheunittothemainspowersupply.

""Specifications).

2.OPERATION

2.1.1TheUltramizerfunction

TheUitramizerfunctionadjuststheparametersofthecompressorstoachievethedesired(set)DENS-

ITY inbothbands.

WhentheRANGEparameterissetatzeroorasmallvalue,thetotaloutputwillnotincrease(oronlyslightly

increase).OnlytheDENSITYwillbeincreased,resultinginagainreductionattheoutput.Thissetupis

advisablewhenanincreaseofthegainisunwanted,forinstanceinliveapplicationswhereanunexpectedin

creaseingaincanleadtofeedback.

ULTRAMIZER DENSITY

AfterpressingtheUITRAMIZERkeyonce,youhaveaccesstotheparameterDENSITY.DENSITYisacom-

binationofParameterstheperceiveddensityofthesignal.governing

ULTRAMIZER SPEED

ULTRAMIZER RANGE

TheparameterRANGE,whichyouaccessafterpressingtheUITRAMIZERkeythreetimes,determines

theUltramizer

duringthequiet(er)moments.Thisfunctionisparticularlyusefulwhenusingthe

WPR2live,where

maximalgainthefunctionwillapplytothesignal.Thisway,fadeinsandfadeouts

remainunaffected.Itisevenpossibletosetthisvaluetozerosothatnoamplificationisallowedbutthe

densitywillincreasewhenahighenoughlevelisappliedtotheinput.Whentheappliedsignalreachesthe

MAXOUTLEVELthesignalwillbecompressedandlimitedbythemultibandcompresserandtheoutput

limiter.Thiswillpreventdistortionwhilemaximizingtheloudness,withouttheriskoffeedbackcausedby

anincreaseingain

unexpectedgainincreasemaycausefeedback.TheRANGEcanbeset

from0to 24dB.

2.1.2TheMax.OutLevelfunction

1.SettheMAXOUTLEVELtoalowvalue.

2.ApplyasignaltotheinputofTheWPR2thatisloudenoughtobelimitedconstantly.

3.SlowlyturntheMAXOUTLEVELupuntiltheclipLEDsoftheconnectedpoweramplifierlightupocca

-sionally.

AfterdeterminingthecorrectMAXOUTLEVELthepresetcanbestoredtorecallatanytimethesame

amplifierandspeakersareused.

YoucanadjusttheMAX.OUTLEVELparameterintwodifferentways:ThepeakandRMSmode.Inpeak

modeyoucanadjustamaximumpeakvaluewhichwillnotbeexceeded.InRMSmodeyousetanaverage

maximumlevel.YoucanswitchbetweenthesetwomodesbypressingtheMAX.OUTLEVELkeyforabout

2 seconds.Additionallythe"RBS"LEDinthedisplaywilllightup.

2.1.3TheExciterfunction

EXCITERPROCESS

WhenpressedonceyougainaccesstotheExciterPROCESSparameter.TheLEDnexttothenumericdisplay

willlightuptoshowthis.NowyoucansettheintensityoftheExcitereffectwithintherangeof0to100.

""PROC

EXCITERTUNE

WhenpressedtwiceyouhaveaccesstotheTUNEparameter.Herethisisthelowerfrequencylimitofthe

Exciterfunction.Thiscanbesetfrom4to11kHz.TheLEDbesidethenumericdisplaylightsupto

displaytheunitoftheeditedparameter.

"kHz"

2.1.4 TheSuperBassfunction

WithTheUltramizerfunctionyoucanincreasetheloudnessanddensityoftheprogrammaterial.The

WPR2analyzesthereceivedmusicmaterialandadaptsthesettingsautomatically.Thefunctionofthe

UltramizerisdependentonthethesettingoftheRANGEparameter.WhentheRANGEparameteris

setrelativelyhigh,theUltramizerfunctionwillperformthesetwoactions:

ThetotalvolumeisraisedtotheMAXOUTLEVELThetotalgainisadjustedinawaythattheoutput

limiterwillhaveaslightgainreduction.Allrelativeparametersarecontinuouslymonitoredtokeepthe

DENSITYatwhateverlevelyouhaveset.

AfterpressingTheULTRAMIZERkeyasecondtime,theparameterSPEEDcanbeset.Thisistherelative

speedwithwhichtheparametersofthecompressor,limiterandgainattheinputwillbealteredtoadapttothe

incomingaudio.ChoosealowspeedwhentheUltramizerfunctionmustdoitsjobinaudibleandhigh

speedwhenfastrecoveryfromtransientsisneeded.WhenlowspeedsarechosentheUltramizerfunctionwill

adaptslowlytonewincomingsignals,althoughthelimiterwillstillperformasa""

limiterwhichwillaffecttransients.

brickwall

IntegratedinthedesignoftheWPR2isitslimiterfunction.Keyvalueinalmostallfunctions

isthemaximumoutputlevelthatissethere.Thisvalueisasocalled""thatcannotbeexceeded

underanycircumstanceswhenTheWPR2isengaged.Thelevelcanbesetfrom

withreferencetotheinternaldigitallevel("dB"willlightupinthedisplay).0dBcorrespondsto+16dBu

Thislevelissimplysetbythefollowingsteps:

brickwall

-48dBto0

dB,

TheWPR2SExciterfunctionaddstransparencyanddepthtotheaudiosignal.Classicalmusic

materialgainstransparencyandmusicalitywhilepopularmusickeepsthedesiredbrilliance.Twoparameters

governtheperformanceoftheExciterfunction,bothcanbeaccessedbymeansoftheEXCITERkey.

SUPERBASSPROCESS

Becarefulnottooverloadyourpoweramplifiersorloudspeakerswhenyouuseanextremesettingofthe

PROCESSparameteroftfunction.Remember,lessismore.heSuperBass

SUPERBASSTUNE

WhenpressedtwiceyouhaveaccesstotheTUNEparameter.Thisistheupperfrequencylimitof

thefunction.Thiscanbesetfrom50to150Hz.The"Hz"LEDbesidethenumericdisplaylights

uptodisplaytheunitoftheeditedparameter.

SuperBass

2.1.5 The3DSurroundfunction

82.OPERATION

TheSuperBassfunction isthelowfrequencyequivalentoftheExciterfunction.Designedtoprocessthelow

frequencyportionofthesignalandtoaddtransparencyanddepth.

2.1.6TheDenoiserfunction

DENOISERTHRESHOLD

DENOISERSENSITIVITY

Whenyouuseextremesettingwiththe3DSurroundfunctiononheavilyreverberatedaudiomaterial,the

reverbcansoundunnaturalandtoointense.Thisiscausedbythewaystereoreverbsoperate.Rememb-

er,lessismore.

TheWPR2Denoiserfunctionisuniversallyapplicableandsuitedforalltypesofinstrum-

entandcomplexsignals.ThealgorithmoftheDenoiserfunctiondoesnotproduceunpleasantsideeffectslike

pumpingornoisetrails.Theparametersareforalargepartchosenautomaticallydependingontheprogram

materialandthetwoparameters,whichcanbeaccessedwiththeDENOISERkey.

TheoptimaladjustmentoftheSENSITIVITYparameterdependsstronglyonthetypeofnoiseandprogr-

ammaterial.TakethetimetosettheSENSITIVITYparameterwithcare.

2.1.7TheCrossoverparameter

Theadvantageofmultibandprocessingisinthedivisionoftheaudiospectrumintoseveralbands,inorderto

avoidthenegativeeffectsofspectralintermodulation.Thechoiceofthecrossoverfrequencywhichdivides

thebandshasinfluenceonhowtheprocessingtakesplace.Withcomplexcompositesignalsthecrossover

frequencyshouldbeinthebassarea(200Hze.g.inordertopreventmodulationofthemidandhighfre-

quencyrangebytheenergyproducedinthebassarea).Withsingleinstrumentsandvocalshowever,ahigher

crossoverfrequencyismoredesireable(2kHz),sincethecenterpointofthepowerspectrumisshiftedhere.

Forcompleteflexibilitythecrossoverfrequencycanbesetanywherefrom20Hzto20kHz,in31steps

accordingtotheISOfrequencies.ThisenablestheWPR2tobeusednotonlyasamasteri-

ngdevicebutalsoasaprocessorforsingleinstrumentsandvocals.Ifyousetthecrossoverfrequencyto

themaximumorminimumvalue(20Hzor20kHz),theWPR2willoperateasabroadb-

andcompressor.

Feelfreetoexperimentwithdifferentcrossoverfrequencysettingsandprettysoonafeelingfortheright

settingwillarise,makingtheWPR2thatmuchmoreeffectiveanduseful.

2.2Selectingpresets

TheWPR2stores50user-definablepresets.Afterpower-up,theunitautomaticallyrecalls

thepresetlastused.Toselectanotherpreset,makesurethatthePRESETkeyispressedonce.Usethejog

wheeltoenterthepresetnumberofyourchoice.Turnthewheelclockwisetoincrementthepresetnumber,or

counter-clockwisetodecrementit.

IfyoupressthekeyonceyoucanaccesstPROCESSparameter,whichdetermines

theintensityoftfunction.Thevaluecanbesetfrom0to100whilethe""LEDlightsup.

SUPERBASSheSuperBass

heSuperBassPROC

WiththettheWPR2canbeusedasa3DstereoSurroundProcessor,

increasingthestereowidthoftheprogrammaterial.Whetheryouwanttoprocessindividualinstrumentsor

theentiremix,youcansetthefunction""Theeffectmakesthesoundmorespacious,

widerandmorefull.SincethisFunctiondoesnotmakeanysensewithtwomonosignals,theCOUPLEmode

mustbeactivatedtoactivatethefunction

he3DSurroundfunction

3DSurroundonthefly.

3DSurround

WhentheDENOISERkeyispressedtwiceyoucanedittheparameterSENSITIVITY.Withthisparameter

youdeterminethesensitivityofthedynamichighcutfilter.Thisfunctionishighlyusefultoremovenoise

fromthemusicsignal.ToindicatethatthesensitivityisbeingeditedtheSENSLEDbesidethenumeric

displaylightsup.

PleasenotethattheWPR2generallyactivatesthenewlyselectedpresetsonlyafterabo-utonesecond,

whichisindicatedbyadotinthelowerrightcornerofthedisplay.Afterloadingthedata,theWPR2

enablesthepresetandthedotdisappears.Thisbriefinterruptionavoidsthedirectactivationofevery

preset,asyouscrollthroughthepresetlistwiththejogwheel.Thus,theWPR2makessurethatno

"unwanted"presetsareloadedunintentionally.Additionally,youcanrotatethejogwheelathighspeedand

stillhavethetimetospecificallyselectthepresetofyourchoice,insteadofanyofits"neighbours".

WhentheDENOISERkeyispressedonce,theTHRESHOLDcanbeset.ThisfunctionreflectstheNoiseGate

andisusedtoremoveunwantednoiseduringthepauses.WhentheDenoiserTHRESHOLDisbeingsetthe

"dB"LEDbesidethenumericdisplaylightsup.Thesettingcanrangefrom-90dBto0dB(nosignalreaches

theoutput).OFmeanstheDenoiserfunctionisdeactivated.""

9 2.OPERATION

Displa y Mode

0 No controller dat a is trans mitted

1 Cont roller da ta is rec eived but not trans m itted

2 Cont roller da ta is trans mitted but not received

3 Cont roller da ta is tra s mitted and rece ived

Tab.2.1:Controllersettings

Displa y Mode

0 oN program c hange data ar e trans mitted

1 P rogram chang e dat a are received but not trans mitted

2 P rogram chang e dat a are tran s mitted but not re c e ived

3 P rogram chang e dat a are tran s mitted and received

EditingpresetsiseasyontheWPR2.Basically,allessentialparameterscanbeselected

directlyviathekeypadandeditedwiththejogwheel.Somekeyhavemultiplefunctionthat

canbeaccessedbypressingthatparticularkeyrepeatedly.

Tab.2.2:Programchangesettings

Thethirdpageallowsforconfiguringcontrollercommands.Onitsright-handside,thedisplayreadsacapital

C(=Controller).Thejogwheelselectsoneofthefollowingfourcontrollermodes:""

OnthesixthpageyoucanaccesstheSystemExclusivefunctions.Thisisindicatedbyad(fordump)in

thedisplay.Totheleftofthisdanumberisdisplayed:

""""

"d0""d"

"d"""

meansthatnoSYSEXdatawillbesentoraccepted.1willenabletheWPR2toreceivedata.WhenPRESET

ispressedtheunitwillwaitfordata,thisisshownbyflashingdots(LEDs)inthedisplay.TheMIDIbuttonLEDflashes

signalingthatSYSEXdataisbeingreceived.2willenabletheWPR2tosendabulkdump.Startyoursequencer

andpressPRESETontheunittostartthetransmission.

IfyoupresstheIN/OUTkeyagainonthesixthpage,theWPR2quitsMIDIsetupmode.

Toloadthesesettingsagain,select"d1"pressPRESETandstartyoursequencer.IfyoupressIN/OUTagain,

youwillleavetheMIDIsetup.YoucanatalltimespressanyotherkeytoleavetheMIDIsetupdirectly.

DuringabulkdumpallaudiofunctionsoftheWPR2willbedeactivated.

Thefull-featuredMIDIimplementationoftheWPR2allowsforeasilyintegratingthe

WPR2intoanyMIDIsystem.Fordetailedinformationoncontrollertabspleasereferto

section4.1.

MIDIIN

MIDITHRU

TheMIDITHRUjackisusedtoloopthroughincomingMIDIdata,i.e.anycontroldatareceivedattheMIDI

INoftheWPR2willbetransmittedviatheMIDITHRUjacktootherMIDIdevices/

instruments.

MIDIOUT

3.APPLICATIONS

TheWPR2featuresahighlevelofflexibility.Thefollowingchapterdescribessomeother

possibleapplicationsforyourWPR2

3.1Levelsetting

UsetheinputlevelmeteroftheWPR2toadjusttheinputsignaltoabout-10dB.Makesure

thattheCLIPLEDneverlightsup!

3.2UsingtheC-MARKinastudioenvironment

WithitshighlyflexibleconfigurationtheWPR2alsodeliversgoodresultsinaprofessional

studioorhomerecordingenvironment.Whenusedasamasteringdevicewhilerecordingorcopyingthe

WPR2shouldbeplacedbetweensourceandrecorderasshowninfig3.1.Youcanrealize

anyapplicationrangingfromslightprocessingtothetotalmanipulationofmusicsignals.Forexample,you

canusetheWPR2asaLoudnessMaximizer,LimiterandtheDenoisersystematthesame

timewhencopyinganalogtapes.

3.2.1TheWPR2inanalogrecording

3. APPLICATIONS

Attention!Sincethe"storeenable"modeallowsyoutoaccessmemorylocationsdirectlyviaMIDI,

itispossiblethatstoredpresetswillbereplacedoralteredifcontroller#15messagesaresenton

thesameMIDIchannel.ThepurposeofthismodeistofacilitateMIDIbackupandrestore

operationswithoutexpressconfirmationattheWPR2.Itisthereforerecommendedtodisable(flag=0)this

modeassoonastheintendeddatatransferhasended.Thisisdoneautomaticallywhenyouswitchoff

theWPR2.

AnyMIDIdatasenttotheWPR2(sequencer,MIDIfootswitch,etc.)arereceivedviathe

MIDIINjack.Forexample,ifyouwishtousetheWPR2asaneffectsdeviceforyourguitarrack,youcan

connecttheMIDIINjacktoaMIDIfootswitchthatallowsforselectingprogrampresets.

IfyourrackincludesanotherMIDIeffectsdevice(e.g.amulti-effectsprocessor),thedatasentfromtheMIDI

footswitchcanberoutedatheWPR2MIDITHRUjacktoyourmulti-effectsprocessor.

TheMIDIOUTjackallowsfortransmittingMIDIdatathatoriginatefromtheWPR2.Weare

currentlydevelopingasoftwareeditorwhichwillallowforstoringsingleitemsoftheunit`sinternaldataonan

externalmedium.Thus,itwillbepossibletoarchiveWPR2settingsandpresetsonacomputer,sequenceror

MIDIdatarecorder.BothMIDIControlChangeandMIDIProgramChangecommandswillbetransmitted

whenyoueditorrecallfiltersettings..

TakecaretosetlevelsproperlyontheWPR2

Intherecordingandduplicationfieldthegoalshouldalwaysbetoachieveanoptimumrecordinglevelonto

therecordingmedia.Toolowortoohighrecordinglevelsleadtosideeffectssuchasnoise,distortionetc.In

masteringandmultitrackrecording,aswellasinduplication,oneshouldalwaystakecaretoutilizethefull

dynamicrangeofthetaperecorder,DATrecorderetc.Principally,itispossibletocontroltherecordinglevel

by"riding"faders,whichmeanswithlowlevelsignals,thegainisincreased,whereastheamplitudeofhigh

levelsignalisreduced.Itisobviousthatthismethodisinsufficientbecause,especiallyinliverecordings,the

expectedsignallevelscannotbeanticipatedcorrectly.Especiallywithmultitrackrecordings,whicharerun

underhecticcircumstances,thesignallevelofallchannelscannotbemonitoredandcontrolledatthesame

time.Generally,withmanualcontrol,itisnotpossibletoachievesatisfyingrecordingresults.

3.2.2TheWPR2indigitalrecordingandsampling

11 3. APPLICATIONS

3.2.3TheWPR2inmastering

Fig.3.1:TheWPR2asmasteringdevice

Themasteringprocessisoneofthemostcriticalprocessingstepsinrecording.Inthisproductionstep,itis

thegoaltoachievea"maxinumlevel"copyoftherecording,withoutanynoiseordistortion.Inmany

applicationsitisfurtherrequiredtoproduceahighaveragevolume.Quiteofteninthesecases,dynamics

sufferdrastically,becausetheprogrammaterialhasbeencompressedandlimitedtooheavily.Usingthe

CompressorandthePeakLimitersectionoftheWPR2allowsyoutodrasticallyincreasethe

overallvolume,withoutaudiblyaffectingthedynamics.

Proceedasfollows:

Thecutsignalpeakscauseareducedrecordinglevelofabout6dB,whichisvisibleonthelevelindicators

oftheDATrecorder.Nowincreasetherecordingleveloftherecorderbacktonormal.Theresultisalouder

recordingwithoutanylossofsound.

3.3TheWPR2asaprotectivedevice

Soundsystemdistortionisusuallyaresultofamplifiersandloudspeakersbeingdrivenbeyondtheirlimita-

tions,wherebysignalsarehardlimitedbyso-calledclippingoftheamplifiers.Thesignalpeaksarethere-

byclippedbecausethemaximumoutputvoltageisreached,whichleadstounpleasantandforloudspeakers

dangerousdistortions.

Apartfromthedangeroflongtermoverloadaloudspeakercanalsobedamagedbyanoccasionalhighlevel

overload,e.g.thesoundofamicrophonefallingontoahardfloor.Inordertoprotectasystemorthe

loudspeakers,theapplicationoftheWPR2isrecommended.Conventionallimitermust

restrictthemaximumoutputlevelfarbelowtheclip-pointoftheamplifier,inordertolimittheheightand

durationofoverloadingtransients.Thishasthedisadvantagethatthepowerreserveofthesystemcannotbe

fullyexploited.

MixerOutputsL&R

InputL&R

OutputL&R

TapeInputL&R

WPR2

Anautomaticgaincontrolsystemachievesbetterandmoreconstantresults.UsetheWPR2

bystartingwiththeinitialsettings,anduseitsdynamiccontrolfunctionsinordertobeabletodriveananalog,

aswellasadigitalrecording,uptothelimitofitsmaximumdynamicrangewhileremaini

Inananalogrecording,toolowrecordinglevelsleadtoanincreasednoiselevel,whereastoohighlevelswill

causeacompressedandsquashedsound.Inextremecases,itwillcausedistortionduetotapesaturation.

Incontrasttoanalog,sideeffectsinthedigitalfieldalwaysbecomeextremelyaudible:withdecreasinglevel,

atapepreviouslyrecordedwithinsufficientlevellosesresolution:therecordingsoundshardandloses

atmosphere.Withexcessivelevel,therecordingsoundsharshandheavilydistorted.Inordertoavoidthese

effects,thePeakLimitersectionoftheWPR2shouldbeplacedbeforeforexampleasampler.

ThePeakLimiterissetwiththeMAXOUTLEVELvalue.Asaresultofthisprocess,adigitalrecordingora

samplingeventcanbeoptimallysetinlevelwithoutanyproblem.

1.Limitthedynamicsoftheprogrammaterialby6dBusingthePeakLimitersection.Bysoftlyclippingjust

thetransients,therealaudiosignalwillnotbelimited,resultinginahigherheadroom.Theoverallgaincan

nowbeincreasedby6dB,whichleadstoahighervolume.Morethan6dBshouldnotbelimited,otherwise

sideeffectscouldbecomeaudible.

3.4TheWPR2inaMIDIsetup

OwingtotheintegratedMIDIinterfaceyoucanfullycontroltheWPR2inaMIDISetup.The

WPR2canbothreceiveandtransmitProgramCHANGESandCONTROLLERCHANGES.

Wiretheunitasfollows.

Fig.3.2:TheWPR2inaMIDIsetup

3.5SavingdataviaMIDI

TheWPR2sMIDIimplementationalsoallowsforarchivingoneorseveralpresetsonan

externalstoragemedium.Proceedasfollows:

ConnecttheMIDIOUTjackoftheWPR2totheMIDIINjackofaMIDIdatarecorder(e.g.

sequencer).PressthePRESETandIN/OUTkeyssimultaneouslytoenterMIDImode.Setprogramchange

modeto0andcontrollerchangemodeto3.NowquitMIDImodebypressingthePRESETkey.Usethejog

wheeltoselectthepresetwhosedatayouwishtosave.Whenthepresetisactivateditsparametersare

transmittedascontrollerdataandcanberecordedonasequencerorsimilardevice.Repeatthisroutineuntil

allpresetsofyourchoicehavebeensenttotheexternaldatarecorder.

ToloadarchiveddatabackintotheWPR2,youmustenablecontrollerreceptioninMIDImode

(see2.5).Then,startthesequencertoautomaticallytransmiteachpresetdatasetbacktotheWPR2.Pressthe

PRESETkey,selectaprogramlocationtostorethedataandthenagainpressthePRESETkey.Ifyouwanttoautomate

MIDIstorefunctionsyoumustenablethestoremode,toswitchonthereceptionofcontroller#28.Thisallowsyou

todirectlystoreanymodificationoftheactualpresetonthepresetnumberthatistransmittedwiththecontroller. Youcan

alsorestoreacompletepresetthathaspreviouslybeenrecordedwithaMIDIsequenceronthesamelocationithadbefore.

MIDI

Sepquencer

MIDIIn

MIDIThru

MIDIIn

MIDIOut

MIDIIn1

MIDIIn2

MIDIOut

4.INSTALLATION

4.APPENDIX

4.1MIDIimplementation

Function Transmitted Recognized Remarks

Ba sic

Channel

Defaul t

Changed

OFF , 1 - 16

me mo rize d

Mode

Defaul t

Me s s ages

Alte re d

1, 2, 3, 4

Not e Num ber

Tru e Voic e

Ve locity

Not e O N

Not e O F F

Afte r Touc h

Keys

P it c h B ender X X

Contro l O 70 - 87 O 70 - 87 s ee add. Table

P rogr .

Change Tr u e #

O (0-49)

1-50

O (0-49)

1-50

SystemExclusive X X

System

Common

S ong P o s

S ong S e l

Tune

System

Realtime

Clock

Commands

Au x

Me s s ages

LocalON/OFF

All n o te s OFF

Ac ti ve S e n s e

Rese t

Note s

O = YES, X = NO

Mode 1: OMNI ON, P OLY

Mode 2: OMNI ON, MO NO

Mode 3: OMNI OF F , P OLY

Mode 4: OMNI OFF , MO NO

Tab.4.1:MIDIimplementationchart

Chs

13 4.APPENDIX

P a ra me ter Na me Dis pla y Range Midi Control

Number

Cont rol Va lue Rang e

Ma x. Out Level -48 .. 0 70 0 .. 48

RMS Mode 71 0 = P eak , 1 = RMS

S ter eo W idth 0 .. 100 72 0 .. 100

Ultram izer Dens ity 0 .. 100 73 0 .. 100

Ultram izer S peed 1 .. 100 74 0 .. 99

Ultram izer Range 0 .. 24 75 0 .. 24

De noiser Thre s hold OF, -90 .. 0 76 0 .. 91

Denoi s e r S ens itivity 0..100 77 0 .. 100

Left / Right - 78 0 = c oupled, 1 = L, 2 = R

Exc iter P roc es s 0 .. 100 79 0 .. 100

Exc iter Tune 4 .. 11 80 0 .. 100

S uper Ba s s P roc es s 0 .. 100 81 0 .. 100

S uper Ba s s Tune 50 .. 150 82 0 .. 100

Cros s ove r 20 (Hz) .. 20 (kHz) 83 0 .. 30

Low Mute - 84 0 = On, 1 = Mute

High Mute - 85 0 = On, 1 = Mute

S tor e - 86 0 .. 49

In / Out - 87 0 = Out, 1 = In

Tab.4.2:ControllerfunctionswithMIDI

4.APPENDIX 14

4.2Specifications

AnalogInputs

ConnectorsXLRand1/4"jack

TypeRFfiltered,servobalancedinput

Impedance40kOhmsbalanced,20kOhmsunbalanced

NominalOperatingLevel-20dBto+4dB

Max.InputLevel+16dBat+4dBnominallevel,+2dBat-20dBnominallevel

AnalogOutputs

ConnectorsXLRand1/4"jack

TypeElectronicallyservo-balancedoutputstage

Impedance66Ohmsbalanced,33Ohmsunbalanced

Max.OutputLevel+16dBat+4dBnominallevel,+2dBat-20dBnominallevel

Systemspecifications

Bandwidth20Hzto20kHz,-1dB

S/N>95dB,Aweighted,20Hzto20kHz

THD0.0065%typ.+4dB,1kHz,Gain1

Crosstalk<-95dB,22Hzto22kHz

MIDIInterface

Type5-Pin-DIN-SocketIN/OUT/THRU

ImplementationRefertoMIDIImplementationChartinChapter5.1

DigitalProcessing

Converters24-bitSigma-Delta,64/128-timesOversampling

SamplingRate48kHz

Display

Type2-digitnumericLED-Display1/2

PowerSupply

Fuse100-120VAC:250mA(slow-blow)

220-240VAC:125mA(slow-blow)

PowerConsumption10Watts

MainsConnectionStandardIECreceptacle

Physical

Dimensions(H*W*D)45mmX482mmX152mm

NetWeight2kg

ShippingWeight3kg

15 4.APPENDIX

AC220-240V50/60Hz

AC100-120V50/60Hz

Equipson,S.A.

www.equipson.es

[email protected]

Work-pro WPR 2 User manual

Brand: Work-pro

Model: WPR 2

Category: Musical Equipment

Type: User manual

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Work-pro WPR 2 User manual

Work-pro WPR 2 User manual

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