示例#1
0
        /// <summary>
        /// Loads a Harmony Sequence though
        /// </summary>
        /// <param name="f"></param>
        /// <returns></returns>
        public static Composition LoadMidiType1(MidiFile f)
        {
            Composition comp = new Composition();
            int c = 1;
            foreach(var trackEvents in f.Events)
            {
                Track t = new Track();

                t.Channel = (byte)c++;
                TempoEvent tempo = new TempoEvent((int)(Note.ToRealDuration((int)Durations.qn, 60) * 1000000), 0);
                HarmonySequence seq = new HarmonySequence();
                long lastAbsTime = -1;

                List<int> chordNotes = new List<int>(); int chordDuration = 0;
                PatchNames instr = (PatchNames)9999;

                bool add = true;
                foreach(var e in trackEvents)
                {
                    if (e as TempoEvent != null)
                    {
                        tempo = (TempoEvent)e;
                    }
                    if (e as PatchChangeEvent != null)
                    {
                        var p = e as PatchChangeEvent;
                        t.Instrument = (PatchNames)p.Patch;

                        if(t.Instrument == instr)
                        {
                            break;
                        }
                        instr = t.Instrument;
                        /*if(t.Duration < 1)
                        {
                            foreach(var t_ in comp.Tracks)
                                if(t_.Instrument == (PatchNames)p.Patch)
                                {
                                    t = t_;
                                    seq = t_.GetMainSequence() as HarmonySequence;
                                    add = false;
                                    break;
                                }
                        }*/
                    }
                    NoteOnEvent on = e as NoteOnEvent;

                    if (on != null && on.OffEvent != null)
                    {
                        int newDuration = Note.ToNoteLength(on.NoteLength, f.DeltaTicksPerQuarterNote, tempo.Tempo);

                        if (on.AbsoluteTime == lastAbsTime && chordDuration==newDuration)//skip chords
                        {
                            chordNotes.Add(on.NoteNumber);
                        }
                        else
                        {
                            Chord lastChord = new Chord(chordNotes.ToArray(), chordDuration);
                            chordNotes.Clear(); chordDuration = 0;
                            seq.AddChord(lastChord);

                            chordNotes.Add(on.NoteNumber);
                        }

                        chordDuration = newDuration;
                        lastAbsTime = on.AbsoluteTime;
                    }
                }
                if(chordNotes.Count > 0)
                {
                    Chord lastChord = new Chord(chordNotes.ToArray(), chordDuration);
                    chordNotes.Clear(); chordDuration = 0;
                    seq.AddChord(lastChord);
                }

                t.AddSequence(seq);
                if (!comp.Tracks.Contains(t) && t.Duration > 0 && add)
                    comp.Add(t);
            }

            return comp;
        }
示例#2
0
        static void ChordTest()
        {
            MusicPlayer player = new MusicPlayer();
            Chord dminor = new Chord(new NoteNames[] { NoteNames.D, NoteNames.F, NoteNames.A }, 4, Durations.wn);
            Chord dmajor = new Chord(new NoteNames[] { NoteNames.G, NoteNames.B, NoteNames.B }, 4, Durations.wn);
            Chord cmajor = new Chord(new NoteNames[] { NoteNames.C, NoteNames.E, NoteNames.G }, 4, Durations.bn);

            HarmonySequence seq = new HarmonySequence();
            seq.AddChord(dminor); seq.AddChord(dmajor); seq.AddChord(cmajor); seq.AddChord(dminor); seq.AddChord(cmajor); seq.AddChord(dminor); seq.AddChord(dmajor); seq.AddChord(cmajor);
            player.Play(seq);
            player.Close();
        }
示例#3
0
 public HarmonySequence GetHarmonySequence(MelodySequence seq)
 {
     HarmonySequence sequence = new HarmonySequence();
     foreach(Note n in seq.ToArray())
     {
         if (n.Pitch > 0 && n.Velocity > 0 && n.Duration > (int)Durations.en)
             sequence.AddChord(GetChord(n));
         else
             seq.AddPause(n.Duration);
     }
     return sequence;
 }