Endorphines Airstreamer 4 User manual

AIRSTREAMER 4
V.1.0

CONTENT
WARRANTY ............................................................................................................................................. 3
VISIT US .................................................................................................................................................. 3
INTRO ...................................................................................................................................................... 4
CONNECTING THE POWER ...................................................................................................................... 4
TECHNICAL SPECIFICATIONS .................................................................................................................. 4
INTERFACE .............................................................................................................................................. 5
FEATURES OVERVIEW ............................................................................................................................. 8
SPECIAL OPERATION MODES ................................................................................................................. 8
T&H: TRACK AND HOLD .......................................................................................................................... 8
S&H: SAMPLE AND HOLD ....................................................................................................................... 8
SLEW / ENVELOPE FOLLOWER ............................................................................................................... 9
CREDITS .................................................................................................................................................. 9
COMPLIANCE......................................................................................................................................... 10

WARRANTY
1yearwarrantyguaranteedfromtheproduct'spurchasedateincaseofany
manufacturingerrorsorotherfunctionaldeficienciesduringruntime.
Thewarrantydoesnotapplyincaseof:

damagecausedbymisuse
mechanicaldamagearisingfromcarelesstreatment(dropping,vigorousshaking,
mishandling,etc.)
damagecausedbyliquidsorpowderspenetratingthedevice
heatdamagecausedbyoverexposuretosunlightorheating
electricdamagecausedbyimproperconnecting
Thewarrantycoversreplacementorrepair,asdecidedbyus.Pleasecontactusvia
emailforareturnauthorizationbeforesendinganything.Thecustomerpays
shippingcostsofsendingamodulebackforservicing.DevicecomplieswithallEU
regulationsconcerningRoHSleadfreemanufacturingandWEEEdisposal.
VISIT US
https://endorphin.es
https://www.youtube.com/@Endorphines
https://www.instagram.com/endorphin.es/
https://facebook.com/TheEndorphines
https://twitter.com/endorphin_es
https://www.modulargrid.net/e/modules/browser/vendor:167

Fortechnicalrequests:[email protected]
Fordealer/marketinginquiries:[email protected]

ENDORPHIN.ESisaregisteredtrademark.
ItisdoingbusinessasFURTHBARCELONA,S.L.(EUVATID:ESB66836487)

INTRO
AIRSTREAMER4isanultraslimenvelopegeneratorwithlooping,ASRandAD
modesin4hp.Capableoflowaliasingaudiorateoscillationwith224kHzsample
rate,smartsidechainenvelopegenerationalongwithexternalCVprocessing
functionality,sample&holdandtrack&hold–itcanfinditswayintoyourvoice
architectureandworkasautilitymodulewithavarietyofusefulapplications.

CONNECTING THE POWER
Beforeinstallinganewmoduleinyourcase,ensureyourpowersupplyhasafree
powerheaderandsufficientavailablecapacitytopowerthemodule.
Connectthemoduledirectlytothepowerbusboardwithsupplied1016ribbon
cablelikeanyothereurorackmodule.PairofRED/BROWNpinsonthemulticolor
ribboncablecorrespondstoNEGATIVE12VOLTS.
Makesuretoalignthepowercablewiththe‘RED/BROWNSTRIPE’labelonthe
modulethatcorrespondsto12V,tothe10pinconnectorandwithtypicallyawhite
lineforthe16pinconnectoronthebusboard.
TECHNICAL SPECIFICATIONS
Width:4HP/TE,depth:25cm/1″withinsertedribboncable
Currentdraw:+12V:60mA,12V:15mA
CVrange:0…+5VforVCAwithupto5…+5Vfor1v/oct/slewinput.
Audiooutput:+/5Vand0…+5Veurorackstandard

INTERFACE

1. TRIG/GATE/RESETJACKINPUT:multifunctionalpulseinput.
Typicallyexpected0...+5Vor0…+10Vwith0.65Vthreshold.Useexternal
triggerstostarttheenvelopeinADmodewhen(8)setinthemiddle.Tohavean
additionalsustainstage,settheenvelopemodetoASRwith(8)totherightand
sendagatesignaltothisinput:gate’sdurationwillnowcontrolthedurationof
thesustainstage.WhentheAIRSTREAMER4issettolooping/cyclemodewith
(8)totheleft,thisinputwillactasaHARDSYNCinputfortheloopingenvelope,
whichworksasanoscillator.Additionally,thisinputactsasatriggerfortheS&H
/T&H,allowingyoutosampleexternalCV/audiofedtothe1v/octjackinput(2)
seeSPECIALOPERATIONMODESbelow.

2. 1V/OCTJACKINPUTusedforcontrollingthetimeofbothenvelope’s
slopesorpitchoftheoscillatorusingexternalCV,typically1v/octsignals
comingfromasequencer,butnotlimitedtoonlythat.Additionally,youcanfeed
itCVoraudiosourcethatwillbesampledwhenatrigger/gategoeshighonthe
TRIG/GATEINPUT(1).Whennotrigger/gateispresentontheTRIG/GATE
INPUT,anenvelopefollowerisextractedfromtheaudiosourcesfedtothe
1V/OCTINPUT(2).

3. AMPKNOB:polarizer/attenuvertercontrollingthelevel/polarityofthe
envelope/oscillatorattheoutputsortheresultofprocessingexternalCV/
audiosources.SumswithbipolarVCAINjack(10).

4. EXP/LOGTRIMMERcontinuouslydefinestheshapeoftheenvelope’s
slopeswithoutstretchingthemintime:fromexponential–tolinear–to
logarithmicshapes.Sofar,generatedenvelopelookslike: whentrimmeris
atfullCCWEXPposition, inthemiddlenoonpositionand atfullCW
LOGposition.

5. RISEKNOBcontrolsthelengthoftheRISE/ATTACKstageoftheenvelope
ortheoscillatorintherangefromonemillisecondto10seconds.

6. FALLKNOBcontrolstheFALL/DECAYORRELEASEoftheenvelopeinthe
rangefromonemillisecondto10seconds.Actsasattenuatorwhenapatch
cableisinsertedtotheFALLCVjackinput(7).

7. FALLCVJACKINPUT:externalvoltagecontrolfortheFALL/DECAYOR
RELEASEoftheenvelope,expectsavoltageintherangeof0…5V.Normalledto
+5Vwhennopatchcableisinserted.



8. MODESWITCH:threepositionswitchedisusedittochangebetween:

LOOPING/CYCLE(totheleft),
ATTACKDECAY(inthemiddle)or
ATTACKSUSTAINRELEASE(totheright)modes.
Whenusingthe1V/OCTINPUTjack(2)tosampleexternalCVoraudio,middle
ADpositionsetstheT&Hmode,whileASRpositionsetstheS&Hmode(see
SPECIALOPERATIONMODESbelow).

9. EOCOUTPUTJACK:endofcyclegateoutput.Outputsahigh+10V
signalwhenevertheenvelopecompletesthefullcycleorasmall10milliseconds
triggerwhenrecycles.Staysat0Vwhentheenvelopeisgenerating.
Conveniently,youcanusethattriggeroutputasaclockoutputwhenthe
envelopeiscycling.
10.
VCAINPUTJACK:externalbipolarCVcontrolovertheamplitudeofthe
envelope/oscillator,expectingCVintherangeof0…+5VfortypicalVCAaction.
Canbeusedasvelocityinputfromexternalkeyboard/sequencer.Ifanegative
CVisappliedtotheVCAinput,theenvelopewillbeinvertedthereforeVCAinput
willessentiallyworksasabalancedorringmodulationinput.Additionallytothat,
unipolar0…+5Venvelopeoutputundernegativevoltageswillbeoffsetedupby
5Vforcreatingasidechainenvelope.

11. ENVELOPELED:withthebrightnessshowsthelevel/activityofthe
envelope.

12.
ENVELOPEOUTPUTJACKS:twojacksofferseparatelyscaledbipolar
5V…+5Vandunipolar0…+5Venvelopeoutputs.WhenusingAIRSTREAMER4
asanoscillator,itisrecommendedtousetheleftbipolaroutputasaudio
sourcesaretypicallyintherangeof5V…+5V.OntheotherhandCVsources
typicallyexpectunipolarCVsourcesthereforeitisrecommendedtouseright
unipolaroutputasaCVsource.UndernegativevoltageappliedtoVCAINjack
(10)orANPknobbeforenoonandfullyCCWpositionthatunipolaroutput
invertedandadditionallyoffseted,soitstartsfrom+5V‘rising’to0Vandthen
‘falls’backto+5V.Thatallowstoconvenientlyuseitforsidechainducking
envelope.Undernegativevoltagesbipolarenvelopeoutputsimplyinverted
around0Vmiddlepoint:isstartsat+5V‘rising’to5Vandthen‘falling’backto
+5V.



FEATURES OVERVIEW
Atitscore,AIRSTREAMER4isanAD/ASRenvelopewithaVCAcontroland
loopingfunctionality,capableofprocessingexternalCVsourcesbyactingasaslew
limiter,S&HandT&H.
OnboardAMP–polarizerknobletsyouattenuateandinverttheenvelopeonthefly,
feedingnegativevoltagestotheVCAinputwilloffsettheenvelopeupby+5Vand
invertit,allowingforacompactsidechainenvelopesolutionwithouttheneedfor
externalmixers,invertersandoffsetgenerators.
TheDECAY/RELEASEtimecanbemodulatedwithexternalCVsourcesandEND
OFCYCLEoutputcanbeutilizedtotriggeradditionalenvelopes/sequencers/
voicesinyoursystem,extendingtheinterconnectednessofyourpatches.
LoopingmodeallowstheenvelopetocyclefromslowLFOratesuptoaudiorates.
Coupledwith1V/OCTINPUTtheenvelopeturnsintoanoscillator,levelofwhich
canalsobeadjustedusingthebuiltinVCA–eithercontrolledmanuallyorwith
externalCV,whichcanbeveryhandywhenusingAIRSTREAMER4asamodulator
oscillatorforFMpatches.
Continuouslyvariableshapeoverbothslopesadjuststhecurve/tonalcontentof
theenvelope/oscillatorwithoutstretchingslope’sdurationintime,makingthe
moduleeasiertouseinavarietyofmusicalapplications.

SPECIAL OPERATION MODES
T&H: TRACK AND HOLD
ThefollowingmodeisselectedbysettingtheMODESWITCH(8)tothemiddle
position.FeedexternalaudioorCVsourcetothe1V/OCT/slew*inputjack(2)and
freezethembyapplyingthepositivegateinputintoTRIG/GATEjack(1).
TRACK&HOLDmodecontinuouslysamplestheexternalsignalandonceatrigger/
gategoeshighontheTRIG/GATEinput(1),itwillfreeze/holditsmomentary
voltageleveluntilthetrigger/gategoeslowagain.

S&H: SAMPLE AND HOLD
ThefollowingmodeisselectedbyflippingtheMODESWITCH(8)totheright.Feed
externalaudioorCVsourcetothe1V/OCT/slew*input(2)and‘sample’their
momentaryvoltagelevelsbyapplyingthepositivetriggerorgateintoTRIG/GATE
jack(1).
UnlikeT&Hmode,SAMPLEANDHOLDdoesnotcontinuouslysampletheexternal
CV/audiosource,butonlystartstosamplethesignalonceafirsttriggerorgate

goeshighontheTRIG/GATEinputjack(1)andafterwardswillholdthatmomentary
voltageafterthetrigger/gategoeslow(oppositetoT&H).

SLEW / ENVELOPE FOLLOWER
FeedexternalCVoraudiosourcetothe1v/octinputand‘slew’thembyadjusting
theRISE(5)andFALL(7)knobs.Isimportanttousebipolar5…+5Voutputto
maintaintheproperunitytoinputsignalscale.Itisrecommendedtokeepthe
SHAPEtrimmer(4)at12:00,butexperimentbychangingitspositiontofindthe
optimalslewsweetspot.CVsourceswillbeslewed,whileaudiosourceswillbe
usedtoextractanenvelopefollowerfromaudio’samplitude.

Note:while1/octinputtracks1voltperoctaveinternaloscillatorformorethan3
4octaves,usingthatinputforslewingexternal1v/octpitchCVsourcemayworsen
theprecisetracking


CREDITS
ENDORPHIN.ES® – AIRSTREAMER 4
FIRMWARE VERSION V.1.0
COLLECTION SPRING/SUMMER 2023

Moduleidea,hardwaredesign,directionandmanualbyAndreasZhukovsky
CoreengineprogrammingbyBSVi
SpecialthankstoXavierGalaiforadditionalcodeandcrazyideas.
Manualproofreading,betatestinganddemovideosbyWisdomWater
Endorphin.esaremadeinBarcelona,Spain
Follow,like,postandtagusatInstagram:@endorphin.es
 

COMPLIANCE
FCC
ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothe
followingtwoconditions:(1)thisdevicemaynotcauseharmfulinterference,and(2)
thisdevicemustacceptanyinterferencereceived,includinginterferencethatmay
causeundesiredoperation.
Changes/modificationsnotapprovedbyENDORPHIN.ES(doingbusinessasFurth
Barcelona,S.L.)couldvoidtheuser’sauthoritytooperatetheequipment.
ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassA
digitaldevice,pursuanttopart15oftheFCCRules.Theselimitsaredesignedto
providereasonableprotectionagainstharmfulinterferencewhentheequipmentis
operatedinacommercialenvironment.Thisequipmentgenerates,uses,andcan
radiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththe
instructionmanual,maycauseharmfulinterferencetoradiocommunications.

CE
Thisdevicemeetstherequirementsofthefollowingstandards:
EMC:2014/30/EU
EN55032:2015;EN551032:2009(EN55024);EN6100032;
EN6100033
LowVoltage:2014/35/EU
EN60065:2002+A1:2006+A11:2008+A2:2010+A12:2011
RoHS2:2011/65/EU
WEEE:2012/19/EU