Simmons SDHB2 User Manual download pdf (Page 19)

SDHB2

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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offer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effect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

generatedbythetriggerswhenhittingthepadsorsteppingontheHi-Hatcontrolpedal(ProgramChange,NoteOn/Off,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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Simmons SDHB2 User Manual Page 19