public static void onsetDetection()
{
Time timer = new Time();
int starts = 0;
int stops = 0;
List<int> noteStops;
List<double> pitches;
noteStarts = new List<int>(100);
noteStops = new List<int>(100);
lengths = new List<int>(100);
pitches = new List<double>(100);
HFC = new float[stftRep.timeFreqData[0].Length];
//timer.next("Onset setup");
Thread[] mine = new Thread[MainProgram.Num_threads];
for (int a = 0; a < MainProgram.Num_threads; a++)
{
mine[a] = new Thread(onsetloop1);
mine[a].Start(a);
}
for (int a = 0; a < MainProgram.Num_threads; a++)
{
mine[a].Join();
}
//timer.next("Onset loop 1");
float maxi = HFC.Max();
for (int jj = 0; jj < stftRep.timeFreqData[0].Length; jj++)
{
HFC[jj] = (float)Math.Pow((HFC[jj] / maxi), 2);
}
//timer.next("Onset loop 2");
for (int jj = 0; jj < stftRep.timeFreqData[0].Length; jj++)
{
if (starts > stops)
{
if (HFC[jj] < 0.001)
{
noteStops.Add(jj * ((stftRep.wSamp - 1) / 2));
stops = stops + 1;
}
}
else if (starts - stops == 0)
{
if (HFC[jj] > 0.001)
{
noteStarts.Add(jj * ((stftRep.wSamp - 1) / 2));
starts = starts + 1;
}
}
}
//timer.next("Onset loop 3");
if (starts > stops)
{
noteStops.Add(waveIn.data.Length);
}
// DETERMINES START AND FINISH TIME OF NOTES BASED ON ONSET DETECTION
///*
// timer.restart();
for (int ii = 0; ii < noteStops.Count; ii++)
{
lengths.Add(noteStops[ii] - noteStarts[ii]);
}
timer.next("Onset loop 4");
allpitches = new List<double>[Num_threads];
for (int a = 0; a < Num_threads; a++)
{
allpitches[a] = new List<double>();
mine[a] = new Thread(onsetloopmm);
mine[a].Start(a);
}
for (int a = 0; a < Num_threads; a++)
{
mine[a].Join();
pitches.AddRange(allpitches[a]);
}
timer.next("onset mm loop");
musicNote[] noteArray;
noteArray = new musicNote[noteStarts.Count()];
for (int ii = 0; ii < noteStarts.Count(); ii++)
{
noteArray[ii] = new musicNote(pitches[ii], lengths[ii]);
}
//timer.next("onset loop 6");
int[] sheetPitchArray = new int[sheetmusic.Length];
int[] notePitchArray = new int[noteArray.Length];
for (int ii = 0; ii < sheetmusic.Length; ii++)
{
sheetPitchArray[ii] = sheetmusic[ii].pitch % 12;
}
//timer.next("onset loop 7");
for (int jj = 0; jj < noteArray.Length; jj++)
{
notePitchArray[jj] = noteArray[jj].pitch % 12;
}
//timer.next("onset loop 8");
string[] alignedStrings = new string[2];
alignedStrings = stringMatch(sheetPitchArray, notePitchArray);
musicNote[] alignedStaffArray = new musicNote[alignedStrings[0].Length / 2];
musicNote[] alignedNoteArray = new musicNote[alignedStrings[1].Length / 2];
int staffCount = 0;
int noteCount = 0;
//timer.next("onset stuff");
for (int ii = 0; ii < alignedStrings[0].Length / 2; ii++)
{
if (alignedStrings[0][2 * ii] == ' ')
{
alignedStaffArray[ii] = new musicNote(0, 0);
}
else
{
alignedStaffArray[ii] = sheetmusic[staffCount];
staffCount++;
}
if (alignedStrings[1][2 * ii] == ' ')
{
alignedNoteArray[ii] = new musicNote(0, 0);
}
else
{
alignedNoteArray[ii] = noteArray[noteCount];
noteCount++;
}
}
timer.end("onset last");
}
static void Main(string[] args)
{
string filename = "..//..//Jupiter.wav";
string xmlfile = "..//..//Jupiter.xml";
Time timewhole = new Time();
Time timer = new Time();
loadWave(filename);
timer.next("\nsetup");
freqDomain();
timer.next("\nfreqDomain");
sheetmusic = readXML(xmlfile);
timer.next("\nsheetmusic");
onsetDetection();
timer.next("\nonsetDetection");
//timer.next("\nloadImage");
//timer.next("\nloadHistogram");
//timer.next("\nplayBack");
timer.end("\nOther stuff");
Console.WriteLine("It is done!");
timewhole.end("Overall time");
Console.ReadKey();
}
