Simmons SDHB2 - MIDI and USB; MIDI Connection; USB Connection; Local Mode

SDHB2
www.simmonsdrums.net
MIDIstandsforMusicalInstrumentDigitalInterface.Thisisaworld-widestandardcommunicationinterfacethatenableselectronic
musical instruments and computers of all brands to communicate with each other so that instructions and other data can pass
betweenthem.ThisexchangeofinformationmakesitpossibletocreateasystemofMIDIinstrumentsanddevicesthatoerfar
greaterversatilityandcontrolthanwhatisavailablewithisolatedinstruments.Whetheryouinterfacewithcomputers,sequencers,
expandersorothercontrollers,you’resuretoenhanceyourmusicalhorizons.
MIDIIN:ThisterminalreceivesMIDIdatafromanexternalMIDIdevice.
MIDIOUT:ThisterminaltransmitsdatafromthisinstrumenttootherMIDIdevices.
TheUSBconnectorallowsyoutoconnecttheSDHB2directlytoyourcomputer.Itcanbeconnectedwithoutdriverinstallationunder
theWindowsXP&MACOSXenvironment.TheSDHB2willberecognizedas“USBAudiodevice”toreceiveandtransmitMIDI
messagesthroughasingleUSBcable.USBisusedonlyforMIDImessages(MIDIviaUSB).
NOTE:WhentheUSBisconnectedtoacomputer,allMIDImessageswillbereceivedandtransmittedviaUSB.
FromtheMIDI’spointofview,theSDHB2iscomposedoftwodevices:
•Acontrollertransmittingdatatothepadsandhi-hatcontrolpedal(viaaninternaltriggertoMIDIconverter)
•AsoundgeneratorreceivingMIDIdata(thesoundmodule)
Innormaloperation(LocalON,defaultmode),those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,andnotfromthepads.
However,thepadtriggerdataisstillsenttotheMIDIOutput,thereforeloopingexternallytheMIDIOutoftheSDHB2backtoits
MIDIInwillenablethepadstoplaythe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SDHB2areconnectedtoaMIDIsequencerwithSoftThrufunction(whichloopstheMIDI
datareceivedfromtheMIDIoutputbacktotheMIDIinput).Thispreventsthedoublingorangingeectwhenplayingthepads
(causedbythesoundgeneratorreceivingthesameMIDIdata—bothdirectlyfromthepadsandbackthroughthesequencer).
TheSDHB2’stransmissionchannelisxedtoChannel10(DrumsandPercussionchannel).TheSDHB2willoutputMIDIcodesgener-
atedbythetriggerswhenhittingthepadsorsteppingontheHi-Hatcontrolpedal(ProgramChange,NoteOn/O,andFootControl
messages).Songplaybackdataandmetronomenotesarenottransmitted.
TheMIDIsystemintheSDHB2has16receptionchannelsnumberedfrom1-16.Eachchannelisresponsibleforavoice.Whenthe
instrumentreceivesMIDIinformationfromanexternaldevice,theactivechannelisdeterminedbythecontrolmessage.Channel10
isreservedfortheDrums.Channels9and16canbeusedforadditionalPercussionsounds.(SeePercussionSetlistpages23-24.)
Allotherchannels(1-8,11-15)canbeusedtoaccessthe128GeneralMIDIinstrumentsandsoundsincludedinthesoundmodule
(GM standard). These are the same instruments that are used to create the accompaniment for the internal Song player.
MIDI and USB
MIDI connection
usb connection
local mode
MIDI channels
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