public List <Note> Detection()
{
List <Note> noteList = new List <Note>();
//Console.WriteLine("Press any key to convert to .WAV file...");
//Console.ReadLine();
int i;
//Open MP3 file and convert to WAV file.
WaveOutEvent waveOut = new WaveOutEvent();
Mp3FileReader mp3Reader = new Mp3FileReader(@"C:\Users\Fazle\source\repos\Practice\Media\twinkle.mp3");
toWAV(mp3Reader);
//Console.WriteLine(".WAV file created! Press any key to continue...");
//Console.ReadLine();
StereoToMono(@"C:\Users\Fazle\source\repos\Practice\Media\current.wav");
int sampleRate;
double[] data = null, R = null;
ReadWavFile(out sampleRate);
openWav(@"C:\Users\Fazle\source\repos\Practice\Media\currentMono.wav", out data, out R);
//Console.WriteLine(data.Length);
Progress <string> progress = new Progress <string>();
OnsetDetector detector = new OnsetDetector(DetectorOptions.Default, progress);
List <Onset> list = detector.Detect(@"C:\Users\Fazle\source\repos\Practice\Media\currentMono.wav");
/*Console.WriteLine("Time Amp");
* for (i = 0; i < list.Count; i++)
* {
* Console.Write(list[i].OnsetTime);
* Console.Write(" ");
* Console.Write(list[i].OnsetAmplitude);
* Console.Write(" ");
* Console.WriteLine();
* }
* Console.WriteLine();*/
int startPos = 0, stopPos = 0, flag = 0;
double freq = 0, duration = 0;
double[] temp;
double[] result;
CSCore.Utils.Complex[] complex;
for (i = 0; i < list.Count - 1; i++)
{
startPos = (int)Math.Ceiling(list[i].OnsetTime * sampleRate);
stopPos = (int)Math.Floor(list[i + 1].OnsetTime * sampleRate);
temp = new double[stopPos - startPos];
result = new double[stopPos - startPos];
complex = new CSCore.Utils.Complex[stopPos - startPos];
Array.ConstrainedCopy(data, startPos, temp, 0, temp.Length);
for (int j = 0; j < complex.Length; j++)
{
complex[j] = new Complex((float)temp[j]);
//Console.WriteLine(complex[j]);
}
//Console.ReadLine();
Note note = new Note();
note.Frequency = CalculateFFT(result, complex, flag);
note.Name = UtilMethods.FreqToNote(note.Frequency);
note.Duration = list[i + 1].OnsetTime - list[i].OnsetTime;
noteList.Add(note);
}
//Last Note
startPos = (int)Math.Floor(list[i].OnsetTime * sampleRate);
stopPos = data.Length - 1;
temp = new double[stopPos - startPos];
result = new double[stopPos - startPos];
complex = new CSCore.Utils.Complex[stopPos - startPos];
Array.ConstrainedCopy(data, startPos, temp, 0, temp.Length);
for (int j = 0; j < complex.Length; j++)
{
complex[j] = new Complex((float)temp[j]);
}
flag = 1;
Note lastNote = new Note();
lastNote.Frequency = CalculateFFT(result, complex, flag);
lastNote.Name = UtilMethods.FreqToNote(lastNote.Frequency);
lastNote.Duration = (data.Length / sampleRate) - list[i].OnsetTime;
noteList.Add(lastNote);
//Console.WriteLine("Press any key to terminate.");
//Console.ReadLine();
mp3Reader.Dispose();
return(noteList);
}
