Einfache MIDI Klasse - Welcher Ton ist welche Zahl? (MMSystem)

[milos]

Hallo,

habe eine einfache MIDI Klasse aus dem Netz gefunden:

Delphi-Quellcode:

unit MIDISound;

interface

uses
  MMSystem;

type
  TMIDIInstrument = (midiAcousticGrandPiano, midiBrightAcousticPiano,
                     midiElectricGrandPiano, midiHonkyTonkPiano,
                     midiRhodesPiano, midiChorusedPiano, midiHarpsichord,
                     midiClavinet, midiCelesta, midiGlockenspiel,
                     midiMusicBox, midiVibraphone, midiMarimba, midiXylophone,
                     midiTubularBells, midiDulcimer, midiHammondOrgan,
                     midiPercussiveOrgan, midiRockOrgan, midiChurchOrgan,
                     midiReedOrgan, midiAccordion, midiHarmonica,
                     midiTangoAccordion, midiAcousticGuitarNylon,
                     midiAcousticGuitarSteel, midiElectricGuitarJazz,
                     midiElectricGuitarClean, midiElectricGuitarMuted,
                     midiOverdrivenGuitar, midiDistortionGuitar,
                     midiGuitarHarmonics, midiAcousticBass, midiElectricBassFinger,
                     midiElectricBassPick, midiFretlessBass, midiSlapBass1,
                     midiSlapBass2, midiSynthBass1, midiSynthBass2, midiViolin,
                     midiViola, midiCello, midiContrabass, midiTremoloStrings,
                     midiPizzicatoStrings, midiOrchestralHarp, midiTimpani,
                     midiStringEnsemble1, midiStringEnsemble2, midiSynthStrings1,
                     midiSynthStrings2, midiChoirAahs, midiVoiceOohs,
                     midiSynthVoice, midiOrchestraHit, midiTrumpet, midiTrombone,
                     midiTuba, midiMutedTrumpet, midiFrenchHorn, midiBrassSection,
                     midiSynthBrass1, midiSynthBrass2, midiSopranoSax, midiAltoSax,
                     midiTenorSax, midiBaritoneSax, midiOboe, midiEnglishHorn,
                     midiBassoon, midiClarinet, midiPiccolo, midiFlute,
                     midiRecorder, midiPanFlute, midiBottleBlow, midiShakuhachi,
                     midiWhistle, midiOcarina, midiLead1Square,
                     midiLead2Sawtooth, midiLead3CalliopeLead, midiLead4ChiffLead,
                     midiLead5Charang, midiLead6Voice, midiLead7Fifths,
                     midiLead8BrassLead, midiPad1NewAge, midiPad2Warm,
                     midiPad3Polysynth, midiPad4Choir, midiPad5Bowed,
                     midiPad6Metallic, midiPad7Halo, midiPad8Sweep, midiEmpty0,
                     midiEmpty1, midiEmpty2, midiEmpty3, midiEmpty4, midiEmpty5,
                     midiEmpty6, midiEmpty7, midiEmpty8, midiEmpty9, midiEmpty10,
                     midiEmpty11, midiEmpty12, midiEmpty13, midiEmpty14,
                     midiEmpty15, midiEmpty16, midiEmpty17, midiEmpty18,
                     midiEmpty19, midiEmpty20, midiEmpty21, midiEmpty22,
                     midiEmpty23, midiGuitarFretNoise, midiBreathNoise,
                     midiSeashore, midiBirdTweet, midiTelephoneRing,
                     midiHelicopter, midiApplause, midiGunshot);

  procedure MIDIInit;
  function MIDIEncodeMessage(Msg, Param1, Param2: integer): integer;
  procedure SetCurrentInstrument(CurrentInstrument: TMIDIInstrument);
  procedure NoteOn(NewNote, NewIntensity: byte);
  procedure NoteOff(NewNote, NewIntensity: byte);
  procedure SetPlaybackVolume(PlaybackVolume: cardinal);

implementation

var
  mo: HMIDIOUT;

const
  MIDI_NOTE_ON = $90;
  MIDI_NOTE_OFF = $80;
  MIDI_CHANGE_INSTRUMENT = $C0;
  MIDI_DEVICE = 0;
  MIDI_VEL = 108;

procedure MIDIInit;
begin
  midiOutOpen(@mo, MIDI_DEVICE, 0, 0, CALLBACK_NULL);
  SetPlaybackVolume($FFFFFFFF);
end;

function MIDIEncodeMessage(Msg, Param1, Param2: integer): integer;
begin
  result := Msg + (Param1 shl 8) + (Param2 shl 16);
end;

procedure SetCurrentInstrument(CurrentInstrument: TMIDIInstrument);
begin
  midiOutShortMsg(mo, MIDIEncodeMessage(MIDI_CHANGE_INSTRUMENT, ord(CurrentInstrument), 0));
end;

procedure NoteOn(NewNote, NewIntensity: byte);
begin
  midiOutShortMsg(mo, MIDIEncodeMessage(MIDI_NOTE_ON, NewNote, NewIntensity));
end;

procedure NoteOff(NewNote, NewIntensity: byte);
begin
  midiOutShortMsg(mo, MIDIEncodeMessage(MIDI_NOTE_OFF, NewNote, NewIntensity));
end;

procedure SetPlaybackVolume(PlaybackVolume: cardinal);
begin
  midiOutSetVolume(mo, PlaybackVolume);
end;
end.

Etwas abspielen kann man ganz leicht, z.B. so:

Delphi-Quellcode:

procedure TForm1.FormActivate(Sender: TObject);
begin
  MIDIInit;
  SetCurrentInstrument(midiPad7Halo);

  NoteOn(50,127);
  sleep(3000);
  NoteOff(50,127);
end;

50 ist die Tonhöhe und 127 die Lautstärke.
Wie kann ich herausfinden welcher Ton welche Zahl ist?

Es geht um eine einfache Klinger bei uns in der Firma die man selbst "komponieren" können sollte.

Der Editor wird hier hochgeladen sobald ich fertig damit bin.

MfG