Simmons SD9K - MIDI and USB Interface; MIDI and USB Connection; Local Mode Operation

SD9K digital drum kit User manual
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MIDIstandsforMusicalInstrumentDigitalInterface.Thisworldwidestandardcommunicationinterfaceenableselectronicmusical
instrumentsandcomputersofallbrandstocommunicateandpassinstructionsandotherdatabackandforth.Thisexchangeofinfor-
mationmakesitpossibletocreateasystemofMIDIinstrumentsanddevicesthatoffersfargreaterversatilityandcontrolthanwhatis
available with isolated instruments. Whether you interface with computers, sequencers, expanders, or other controllers, your musical
horizons will be greatly enhanced.
MIDI and USB
MIDI connection
usb connection
local mode
TheSD9Kiscomposedoftwodevices:
 • Acontrollertransmittingdata:thepadsandhi-hatcontrolpedal(viaaninternaltriggertoMIDIconverter)
 • AsoundgeneratorreceivingMIDIdataviathesoundmodule
Innormaloperation(LocalON,defaultmode),thetwodevicesareconnectedtogetherinternally,allowingthepadstoplaythe
voices from the sound module without any external connection.
WhensettingLOCALmodetoLOCALOFFmodeintheUtilitymenu,thisinternallinkisdisconnected.ThesoundmodulereceivesMIDI
messagesviaMIDIinputonly–notfromthepads.However,thetriggerdatafromthepadsarestillsenttotheMIDIOutput,sowhen
SoftThruisenabled,MIDIOutfromtheSD9KloopsbacktoitsownMIDIIn.Thiswillenablethepadstoplayvoicesfromthesound
module.
LOCALOFFmodeisintendedtobeusedwhenboththeMIDIinputandoutput(ortheUSBport)oftheSD9Kareconnectedtoa
MIDIsequencerwiththeSoftThrufunctionenabled.Thispreventsdoublingorangingeffectswhenplayingthepads(causedbythe
soundgeneratorreceivingthesameMIDIdatabothdirectlyfromthepadsandbackthroughthesequencer).
MIDIIN:ThisterminalreceivesMIDIdatafromanexternalMIDIdevice.
MIDIOUT:ThisterminaltransmitsdatafromtheSD9KtootherMIDIdevices.
TheUSBconnectorallowsyoutoconnecttheSD9Kdirectlytoyourcomputer.ItcanbeconnectedwithoutinstallingadriverinWin-
dowsXPorMACOSXenvironments.TheSD9Kwillberecognizedasa“USBAudiodevice”toreceiveandtransmitMIDImessages
throughasingleUSBcable.TheUSBportisusedonlyforMIDImessages(MIDIviaUSB).
NOTE:WhentheUSBportisconnectedtoacomputer,allMIDImessageswillbereceivedandtransmittedviaUSB.